What are the cheapest airlines flying from Buffalo to Chicago O'Hare Intl Airport round-trip?

JetBlue, at $239, was found to be the cheapest airline from Buffalo to Chicago O'Hare Intl Airport.Alternate airlines to your destination round-trip include Frontier and Sun Country Air. JetBlue is currently priced 28% below the average price you’ll pay for this route.

What are the cheapest airlines to fly from Buffalo to Chicago O'Hare Intl Airport one-way?

$75 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on JetBlue and Sun Country Air, with prices starting from $94 and $123, respectively.

What is the cheapest day to fly from Buffalo to Chicago O'Hare Intl Airport?

Travelers seeking maximum savings on their Buffalo to Chicago O'Hare Intl Airport flight should consider departing on Friday evenings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

What are the cheapest flights from Buffalo to Chicago O'Hare Intl Airport?

The cheapest flight price from Buffalo to Chicago O'Hare Intl Airport is $138. On average you can expect to pay $920. The most popular route, (Buffalo - Chicago O'Hare Intl), can usually be booked for $187.

What are the most reliable airlines from Buffalo to Chicago O'Hare Intl Airport?

Before booking your flight to Chicago O'Hare Intl Airport from Buffalo, check out the most reliable airlines to get you to your destination on time: Copa Airlines (93%), Avianca (91%), GoJet( 86%).

What are the most popular airlines that fly from Buffalo to Chicago O'Hare Intl Airport?

Consider American Airlines, Frontier or United Airlines when booking your flight. These represent the most popular airlines when flying from Buffalo to Chicago O'Hare Intl Airport.

What is the cheapest day to fly round-trip from Buffalo to Chicago O'Hare Intl Airport?

Sunday flights are generally found to be more expensive for flights from Buffalo to Chicago O'Hare Intl Airport. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Chicago O'Hare Intl Airport.

How far in advance should I book a flight from Buffalo to Chicago O'Hare Intl Airport?

To save on the cost of your flight from Buffalo to Chicago O'Hare Intl Airport, book at least 59 days before your planned departure. Booking around this time can save you about 141% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $408 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $432.

What is the cheapest month to fly from Buffalo to Chicago O'Hare Intl Airport?

The best pricing can be found in the month of September. Prices to Chicago O'Hare Intl Airport from Buffalo average $325. You can even find prices in September for less than $325, as users have found deals to Chicago O'Hare Intl Airport from as low as $114. The month of February appears to be one of the more expensive times to travel to Chicago O'Hare Intl Airport from Buffalo. Flying in the targeted month can save you up to 25%.

Most accurate provider : When it comes to deals on Buffalo-Chicago O'Hare Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Buffalo-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Buffalo-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Buffalo-Chicago O'Hare Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Buffalo-Chicago O'Hare Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly from for flights from Buffalo to Chicago O'Hare Intl?

For a flight from Buffalo to Chicago O'Hare Intl, you will be flying from Buffalo. Buffalo (BUF) is just 8.3 mi from the center of the city. Buffalo is the only Buffalo airport and it handles 17 outbound flights to Chicago O'Hare Intl per day. 3 airlines have flights to Chicago O'Hare Intl from Buffalo on a regular basis.

Can I find deals for flights from Buffalo to O'Hare Intl that include hotel bookings?

Yes. In addition to deals on Buffalo to O'Hare Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Buffalo to O'Hare Intl?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Buffalo to O'Hare Intl.

Can I find deals for business class flights from Buffalo to O'Hare Intl?

Yes. Cheapflights offers flight deals from Buffalo to O'Hare Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$75+ Save on Flights from Buffalo to Chicago O'Hare Intl Airport

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Buffalo to O'Hare Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

The best prices from Buffalo to Chicago O'Hare Intl are usually found in September or January, booked 84 days in advance, depart on a Friday or Thursday and return on a Wednesday

Cheap flight deals from Buffalo to O'Hare Intl

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$239 (JetBlue)
One-way from	$75 (Frontier)
Popular in	February
Cheapest in	September
Average price	$318
Good round-trip deal	$367 or less
Good one-way deal	$184 or less

Provider with most accurate pricing for Buffalo-Chicago O'Hare Intl flight deals.

Search Deals

Provider most trusted by Cheapflights users for Buffalo-Chicago O'Hare Intl flights.

Search Deals

From Buffalo to Chicago O'Hare Intl

Search Deals

One-way flight from Buffalo to Chicago O'Hare Intl

Search Deals

Highest demand for flights based on searches. 4% potential increase in price ($15 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in March 2025

Search Deals

Price to beat on a round-trip flight from Buffalo to Chicago O'Hare Intl.

Search Deals

Price to beat on a one-way flight from Buffalo to Chicago O'Hare Intl.

Search Deals

Find flight deals from Buffalo to O'Hare Intl

Cheapest flights from Buffalo to O'Hare Intl
Explore the most affordable flight options available from Buffalo to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 3, 2025.

Sat 5/243:05 pmBUF - ORD

1 stop8h 15mJetBlue

Wed 5/284:03 pmORD - BUF

1 stop4h 52mJetBlue

Deal found 3/2

$239

Fri 6/278:21 pmBUF - ORD

1 stop12h 35mFrontier

Sun 6/299:01 amORD - BUF

1 stop9h 20mFrontier

Deal found 3/1

$244

Thu 8/711:40 amBUF - ORD

1 stop8h 31mSun Country Air

Sun 8/108:10 pmORD - BUF

1 stop13h 34mSun Country Air

Deal found 3/2

$255

Thu 4/245:25 amBUF - ORD

1 stop8h 37mAmerican Airlines

Mon 4/281:23 pmORD - BUF

1 stop9h 03mAmerican Airlines

Deal found 3/3

$263

Wed 4/27:00 amBUF - ORD

Nonstop1h 58mUnited Airlines

Wed 4/25:59 pmORD - BUF

1 stop4h 45mUnited Airlines

Deal found 3/3

$285

Wed 4/165:45 amBUF - ORD

1 stop13h 38mDelta

Wed 4/235:05 pmORD - BUF

1 stop4h 55mDelta

Deal found 3/2

$289

Tue 4/110:55 amBUF - ORD

2 stops11h 35mSouthwest

Tue 4/81:50 pmORD - BUF

1 stop4h 05mSouthwest

Deal found 3/2

$336

Best flights from Buffalo to O'Hare Intl
Discover carefully curated flight deals from Buffalo to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 3, 2025.

Sat 5/243:05 pmBUF - ORD

1 stop8h 15mJetBlue

Wed 5/284:03 pmORD - BUF

1 stop4h 52mJetBlue

Deal found 3/2

$239

Fri 6/278:21 pmBUF - ORD

1 stop12h 35mFrontier

Sun 6/299:01 amORD - BUF

1 stop9h 20mFrontier

Deal found 3/1

$244

Thu 8/711:40 amBUF - ORD

1 stop8h 31mSun Country Air

Sun 8/108:10 pmORD - BUF

1 stop13h 34mSun Country Air

Deal found 3/2

$255

Thu 4/245:25 amBUF - ORD

1 stop8h 37mAmerican Airlines

Mon 4/281:23 pmORD - BUF

1 stop9h 03mAmerican Airlines

Deal found 3/3

$263

Wed 4/27:00 amBUF - ORD

Nonstop1h 58mUnited Airlines

Wed 4/25:59 pmORD - BUF

1 stop4h 45mUnited Airlines

Deal found 3/3

$285

Wed 4/165:45 amBUF - ORD

1 stop13h 38mDelta

Wed 4/235:05 pmORD - BUF

1 stop4h 55mDelta

Deal found 3/2

$289

Tue 4/110:55 amBUF - ORD

2 stops11h 35mSouthwest

Tue 4/81:50 pmORD - BUF

1 stop4h 05mSouthwest

Deal found 3/2

$336

Last-minute flights from Buffalo to O'Hare Intl
Discover last-minute flight deals from Buffalo to O'Hare Intl. Data last updated March 3, 2025 and is based on user searches.

Mon 3/106:00 amBUF - ORD

1 stop11h 01mDelta

Mon 3/175:00 pmORD - BUF

1 stop4h 58mDelta

Deal found 3/1

$351

Tue 3/114:58 pmBUF - ORD

1 stop18h 59mFrontier

Tue 3/189:25 amORD - BUF

1 stop23h 59mFrontier

Deal found 3/2

$270

Tue 3/1112:27 pmBUF - ORD

1 stop9h 40mAmerican Airlines

Tue 3/188:15 amORD - BUF

Nonstop1h 34mAmerican Airlines

Deal found 3/2

$341

Tue 3/1112:15 pmBUF - ORD

1 stop5h 10mJetBlue

Fri 3/1411:44 amORD - BUF

1 stop5h 24mJetBlue

Deal found 3/1

$391

Tue 3/115:52 pmBUF - ORD

Nonstop1h 58mUnited Airlines

Mon 3/172:20 pmORD - BUF

Nonstop1h 35mUnited Airlines

Deal found 3/1

$443

Tue 3/114:30 pmBUF - ORD

1 stop6h 30mSouthwest

Tue 3/187:00 amORD - BUF

2 stops8h 00mSouthwest

Deal found 3/2

$453

Mon 3/2412:15 pmBUF - ORD

1 stop5h 15mJetBlue

Fri 4/1110:42 amORD - BUF

1 stop6h 35mJetBlue

Deal found 3/2

$243

Mon 3/2410:25 amBUF - ORD

2 stops12h 35mSouthwest

Wed 3/264:00 pmORD - BUF

1 stop5h 40mSouthwest

Deal found 3/2

$306

Wed 4/27:00 amBUF - ORD

Nonstop1h 58mUnited Airlines

Wed 4/25:59 pmORD - BUF

1 stop4h 45mUnited Airlines

Deal found 3/3

$285

Wed 4/165:45 amBUF - ORD

1 stop13h 38mDelta

Wed 4/235:05 pmORD - BUF

1 stop4h 55mDelta

Deal found 3/2

$289

Thu 4/245:25 amBUF - ORD

1 stop8h 37mAmerican Airlines

Mon 4/281:23 pmORD - BUF

1 stop9h 03mAmerican Airlines

Deal found 3/3

$263

Fri 4/259:52 amBUF - ORD

1 stop14h 44mFrontier

Sun 4/274:30 pmORD - BUF

1 stop15h 32mFrontier

Deal found 3/3

$250

One-way flights from Buffalo to O'Hare Intl
Search for one-way flight options from Buffalo to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated March 3, 2025.

Tue 4/811:24 amBUF - ORD

1 stop8h 40mFrontier

Deal found 3/3

$75

Sun 4/207:05 amBUF - ORD

1 stop6h 16mJetBlue

Deal found 3/3

$94

Thu 5/2911:40 amBUF - ORD

1 stop8h 29mSun Country Air

Deal found 3/3

$123

Tue 4/225:25 amBUF - ORD

1 stop8h 37mAmerican Airlines

Deal found 3/3

$137

Mon 5/56:45 amBUF - ORD

Nonstop1h 58mUnited Airlines

Deal found 3/3

$138

Thu 5/229:02 amBUF - ORD

1 stop4h 39mDelta

Deal found 3/3

$148

Mon 6/95:35 amBUF - ORD

2 stops11h 50mSouthwest

Deal found 3/3

$158

Thu 5/2911:40 amBUF - ORD

3 stops35h 48mMultiple Airlines

Deal found 3/3

$222

Find flights from Buffalo to O'Hare Intl within your budget

Fly from

Fly to

Route

Depart

Return

Price

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Sat 5/24

3:05 pm-10:20 pm

1 stop8h 15m

Chicago O'Hare Intl

Wed 5/28

4:03 pm-9:55 pm

1 stop4h 52m

$239

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Fri 5/30

5:16 pm-12:08 am

1 stop7h 52m

Chicago O'Hare Intl

Sun 6/1

9:01 am-7:21 pm

1 stop9h 20m

$244

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Thu 4/24

5:25 am-1:02 pm

1 stop8h 37m

Chicago O'Hare Intl

Mon 4/28

1:23 pm-11:26 pm

1 stop9h 03m

$263

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Wed 4/2

7:00 am-7:58 am

Nonstop1h 58m

Chicago O'Hare Intl

Wed 4/2

5:59 pm-11:44 pm

1 stop4h 45m

$285

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Wed 4/16

5:45 am-6:23 pm

1 stop13h 38m

Chicago O'Hare Intl

Wed 4/23

5:05 pm-11:00 pm

1 stop4h 55m

$289

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Tue 4/1

10:55 am-9:30 pm

2 stops11h 35m

Chicago O'Hare Intl

Tue 4/8

1:50 pm-6:55 pm

1 stop4h 05m

$336

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Tue 4/8

11:24 am-7:04 pm

1 stop8h 40m

$75

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Sun 4/20

7:05 am-12:21 pm

1 stop6h 16m

$94

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Thu 5/29

11:40 am-7:09 pm

1 stop8h 29m

$123

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Tue 4/22

5:25 am-1:02 pm

1 stop8h 37m

$137

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/3

Showing 1-10 of 14 results

Compare providers for flights from Buffalo to O'Hare Intl

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Buffalo to O'Hare Intl in March.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Priceline	Price Accuracy1 star	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Buffalo-Chicago O'Hare Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Buffalo-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Buffalo-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Buffalo-Chicago O'Hare Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Buffalo-Chicago O'Hare Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

The best insider tips for Buffalo to Chicago O'Hare Intl Airport flights

Find out what our experts recommend to make the most of your Buffalo to Chicago O'Hare Intl Airport trip

Airlines

Qatar Airways

Qatar Airways allows only one carry-on item in economy, so plan your packing carefully.

Qatar Airways offers extra legroom seats for a fee, typically in emergency exit rows and bulkhead seats.

Read more about Qatar Airwaysby Brandon Schultz

United Airlines

United's Economy Plus offers extra legroom and is available for no extra fee for MileagePlus Premier members.

United's Basic Economy allows only a personal item, no carry-on bags, unless exceptions apply.

Read more about United Airlinesby Harriet Baskas

Our travel experts

Brandon Schultz

Expert on Qatar Airways

Harriet Baskas

Expert on United Airlines

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.

Best time to book a flight from Buffalo to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Buffalo with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Buffalo to O'Hare Intl

Get recent, data-driven insights about flights from Buffalo to O'Hare Intl including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Buffalo to Chicago O'Hare Intl Airport?

Booking 83 days in advance of your planned departure date is, on average, the best time to get cheap flights from Buffalo to Chicago O'Hare Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Buffalo to Chicago O'Hare Intl Airport?

Currently, August is the cheapest month in which you can book a flight from Buffalo to Chicago O'Hare Intl Airport (average of $245). Flying from Buffalo to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $322). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BUF to ORD?

It’s optimal to fly from Buffalo to Chicago O'Hare Intl Airport in the morning. By choosing this option you can save up to 26% on the cost of your flight, compared to a flight at noon.

Rainfall in O'Hare Intl by month

In terms of precipitation, rainfall in Chicago O'Hare Intl Airport ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago O'Hare Intl Airport when rainfall is around 1.7 in.

Temperature in O'Hare Intl by month

If weather is an important factor for your trip to Chicago O'Hare Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing O'Hare Intl

To help decide which airline to fly from Buffalo to Chicago, see what other customers have to say about Southwest, Delta and United Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.1

Very good

4,333 reviews

Reviews

1 / 20

10.0

Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Southwest

8.1

Very good

4,333 reviews

Southwest

8.1

Very good

4,333 reviews

Reviews

1 / 20

10.0

Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Delta

8.0

Very good

8,068 reviews

Southwest

8.1

Very good

4,333 reviews

Reviews

1 / 20

10.0

Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

United Airlines

7.4

Good

8,679 reviews

Southwest

8.1

Very good

4,333 reviews

Reviews

1 / 20

10.0

Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

JetBlue

7.4

Good

3,008 reviews

Southwest

8.1

Very good

4,333 reviews

Reviews

1 / 20

10.0

Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

American Airlines

7.2

Good

10,000 reviews

Southwest

8.1

Very good

4,333 reviews

Reviews

1 / 20

10.0

Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Related info for your journey

What airport do you fly from for flights from Buffalo to Chicago O'Hare Intl?
For a flight from Buffalo to Chicago O'Hare Intl, you will be flying from Buffalo. Buffalo (BUF) is just 8.3 mi from the center of the city. Buffalo is the only Buffalo airport and it handles 17 outbound flights to Chicago O'Hare Intl per day. 3 airlines have flights to Chicago O'Hare Intl from Buffalo on a regular basis.
What are the cheapest airlines flying from Buffalo to Chicago O'Hare Intl Airport round-trip?
JetBlue, at $239, was found to be the cheapest airline from Buffalo to Chicago O'Hare Intl Airport.Alternate airlines to your destination round-trip include Frontier and Sun Country Air. JetBlue is currently priced 28% below the average price you’ll pay for this route.
What are the cheapest airlines to fly from Buffalo to Chicago O'Hare Intl Airport one-way?
$75 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on JetBlue and Sun Country Air, with prices starting from $94 and $123, respectively.
What are the most reliable airlines from Buffalo to Chicago O'Hare Intl Airport?
Before booking your flight to Chicago O'Hare Intl Airport from Buffalo, check out the most reliable airlines to get you to your destination on time: Copa Airlines (93%), Avianca (91%), GoJet( 86%).
What are the cheapest flights from Buffalo to Chicago O'Hare Intl Airport?
The cheapest flight price from Buffalo to Chicago O'Hare Intl Airport is $138. On average you can expect to pay $920. The most popular route, (Buffalo - Chicago O'Hare Intl), can usually be booked for $187.
Can I find deals for flights from Buffalo to O'Hare Intl that include hotel bookings?
Yes. In addition to deals on Buffalo to O'Hare Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Buffalo to O'Hare Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Buffalo to O'Hare Intl.
Can I find deals for business class flights from Buffalo to O'Hare Intl?
Yes. Cheapflights offers flight deals from Buffalo to O'Hare Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Buffalo to Chicago O'Hare Intl Airport?
Currently, August is the cheapest month in which you can book a flight from Buffalo to Chicago O'Hare Intl Airport (average of $245). Flying from Buffalo to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $322). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Rosemont

Naperville

Beloit

Racine

Hoffman Estates

Schaumburg

Tinley Park

Rockford

Skokie

Arlington Heights

Northbrook

Joliet

Orland Park

Merrillville

Kenosha

Evanston

Lake Geneva

New Buffalo

Des Plaines

Elgin

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Buffalo to O'Hare Intl

LaGuardia to O'Hare Intl flights

Newark to O'Hare Intl flights

John F Kennedy Intl to O'Hare Intl flights

Newark to Midway flights

John F Kennedy Intl to Midway flights

LaGuardia to Midway flights

Rochester to O'Hare Intl flights

White Plains to O'Hare Intl flights

Albany to O'Hare Intl flights

Syracuse to O'Hare Intl flights

Rochester to Midway flights

Buffalo to Midway flights

White Plains to Midway flights

Stewart to O'Hare Intl flights

Syracuse to Midway flights

Albany to Midway flights

Islip to O'Hare Intl flights

Ithaca to O'Hare Intl flights

Newark to Rockford flights

Ithaca to Midway flights

Binghamton to O'Hare Intl flights

Binghamton to Midway flights

Elmira to O'Hare Intl flights

Elmira to Midway flights

Stewart to Rockford flights

Watertown to O'Hare Intl flights

Rutland to O'Hare Intl flights

Saranac Lake to O'Hare Intl flights

Niagara Falls to O'Hare Intl flights

Plattsburgh to O'Hare Intl flights

Stewart to Midway flights

Other flights to O'Hare Intl

Nashville to O'Hare Intl flights

Sarasota to O'Hare Intl flights

Atlanta to O'Hare Intl flights

West Palm Beach to O'Hare Intl flights

New Orleans to O'Hare Intl flights

Fort Myers to O'Hare Intl flights

Chicago O'Hare Intl Airport to Sarasota flights

Chicago O'Hare Intl Airport to West Palm Beach flights

Chicago O'Hare Intl Airport to Nashville flights

Chicago O'Hare Intl Airport to Newark Airport flights

Chicago O'Hare Intl Airport to Nashville flights

Chicago O'Hare Intl Airport to West Palm Beach flights

Chicago O'Hare Intl Airport to New Orleans flights

Chicago O'Hare Intl Airport to Orlando Airport flights

Chicago O'Hare Intl Airport to Tampa flights

Chicago O'Hare Intl Airport to Sarasota flights

Chicago O'Hare Intl Airport to Atlanta flights

Chicago O'Hare Intl Airport to Fort Myers flights

Chicago O'Hare Intl Airport to New York LaGuardia Airport flights

Chicago O'Hare Intl Airport to Houston George Bush Intcntl Airport flights

Chicago O'Hare Intl Airport to León, Guanajuato flights

Chicago O'Hare Intl Airport to Dallas/Fort Worth Airport flights

Chicago O'Hare Intl Airport to Monterrey flights

Chicago O'Hare Intl Airport to Las Vegas flights

Top 3 airlines flying from Buffalo to O'Hare Intl

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$95	Average$193	FlexibilityNo cancel fee	On-time62%
United Airlines	Cheapest$152	Average$363	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$172	Average$332	FlexibilityNo cancel fee	On-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$75+ Cheap flights from Buffalo (BUF) to O'Hare Intl (ORD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/8. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Buffalo to O'Hare Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

The best prices from Buffalo to Chicago O'Hare Intl are usually found in September or January, booked 84 days in advance, depart on a Friday or Thursday and return on a Wednesday

Cheap flight deals from Buffalo to O'Hare Intl

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Buffalo to O'Hare Intl

Cheapest flights from Buffalo to O'Hare IntlExplore the most affordable flight options available from Buffalo to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 3, 2025.

Explore the most affordable flight options available from Buffalo to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 3, 2025.

Find flights from Buffalo to O'Hare Intl within your budget

Compare providers for flights from Buffalo to O'Hare Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Buffalo to O'Hare Intl in March.

The best insider tips for Buffalo to Chicago O'Hare Intl Airport flights

Find out what our experts recommend to make the most of your Buffalo to Chicago O'Hare Intl Airport trip

Airlines

Qatar Airways

United Airlines

Our travel experts

Best time to book a flight from Buffalo to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Buffalo with our price prediction graph.

Travel insights for flights from Buffalo to O'Hare Intl

Get recent, data-driven insights about flights from Buffalo to O'Hare Intl including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Buffalo to Chicago O'Hare Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Buffalo to O'Hare Intl. Price data was last updated on February 28, 2025.

What is the cheapest month to book a flight from Buffalo to Chicago O'Hare Intl Airport?

What is the cheapest time of day to fly from BUF to ORD?

Find hourly flight availability from Buffalo to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 3, 2025.

Rainfall in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average rainfall totals by month.

Temperature in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average temperature totals by month.

Reviews of airlines servicing O'Hare Intl

To help decide which airline to fly from Buffalo to Chicago, see what other customers have to say about Southwest, Delta and United Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Buffalo to O'Hare Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from Buffalo to Chicago O'Hare Intl?

What are the cheapest airlines flying from Buffalo to Chicago O'Hare Intl Airport round-trip?

What are the cheapest airlines to fly from Buffalo to Chicago O'Hare Intl Airport one-way?

What are the most reliable airlines from Buffalo to Chicago O'Hare Intl Airport?

What are the cheapest flights from Buffalo to Chicago O'Hare Intl Airport?

Can I find deals for flights from Buffalo to O'Hare Intl that include hotel bookings?

How can I find direct flights from Buffalo to O'Hare Intl?

Can I find deals for business class flights from Buffalo to O'Hare Intl?

What is the cheapest month to book a flight from Buffalo to Chicago O'Hare Intl Airport?

Traveling to a place near Buffalo?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Buffalo to O'Hare Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from Buffalo to O'Hare Intl

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Buffalo to O'Hare Intl
Explore the most affordable flight options available from Buffalo to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 3, 2025.