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

United Airlines, at $253, was found to be the cheapest airline from Buffalo to Chicago O'Hare Intl Airport.Alternate airlines to your destination round-trip include American Airlines and Frontier. United Airlines is currently priced 26% 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?

$79 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 $104 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 $132. On average you can expect to pay $1,102. The most popular route, (Buffalo - Chicago O'Hare Intl), can usually be booked for $178.

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: Qatar Airways (95%), Avianca (91%), Copa Airlines( 88%).

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 163% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $311 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $596.

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 March 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 10%.

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 18 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.

$79+ Flights from Buffalo to Chicago O'Hare Intl Airport

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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”

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Cheapflights Tip: The best prices from Buffalo to Chicago O'Hare Intl are usually found in September or January, booked 86 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	$253 (United Airlines)
One-way from	$79 (Frontier)
Popular in	February
Cheapest in	September
Average price	$349
Good round-trip deal	$339 or less
Good one-way deal	$181 or less

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

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

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From Buffalo to Chicago O'Hare Intl

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

Search Deals

Highest demand for flights based on searches. 8% potential increase in price ($32 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

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

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

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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 April 2, 2025.

Wed 4/3010:54 amBUF - ORD

Nonstop2h 00mUnited Airlines

Wed 5/76:35 pmORD - BUF

Nonstop1h 47mUnited Airlines

Deal found 3/31

$253

Wed 5/286:01 amBUF - ORD

1 stop8h 34mAmerican Airlines

Sat 5/318:30 pmORD - BUF

Nonstop1h 52mAmerican Airlines

Deal found 4/1

$256

Mon 4/289:52 amBUF - ORD

1 stop14h 44mFrontier

Sun 5/41:01 pmORD - BUF

1 stop5h 47mFrontier

Deal found 4/1

$258

Sat 5/246:55 pmBUF - ORD

1 stop5h 22mDelta

Tue 5/273:57 pmORD - BUF

1 stop6h 58mDelta

Deal found 4/1

$271

Wed 5/286:10 amBUF - ORD

1 stop7h 55mSouthwest

Sat 5/3112:40 pmORD - BUF

2 stops9h 30mSouthwest

Deal found 4/1

$274

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 April 2, 2025.

Wed 4/3010:54 amBUF - ORD

Nonstop2h 00mUnited Airlines

Wed 5/76:35 pmORD - BUF

Nonstop1h 47mUnited Airlines

Deal found 3/31

$253

Wed 5/286:01 amBUF - ORD

1 stop8h 34mAmerican Airlines

Sat 5/318:30 pmORD - BUF

Nonstop1h 52mAmerican Airlines

Deal found 4/1

$256

Mon 4/289:52 amBUF - ORD

1 stop14h 44mFrontier

Sun 5/41:01 pmORD - BUF

1 stop5h 47mFrontier

Deal found 4/1

$258

Sat 5/246:55 pmBUF - ORD

1 stop5h 22mDelta

Tue 5/273:57 pmORD - BUF

1 stop6h 58mDelta

Deal found 4/1

$271

Wed 5/286:10 amBUF - ORD

1 stop7h 55mSouthwest

Sat 5/3112:40 pmORD - BUF

2 stops9h 30mSouthwest

Deal found 4/1

$274

Last-minute flights from Buffalo to O'Hare Intl
Discover last-minute flight deals from Buffalo to O'Hare Intl. Data last updated April 2, 2025 and is based on user searches.

Thu 4/102:33 pmBUF - ORD

1 stop8h 33mFrontier

Wed 4/1611:45 amORD - BUF

1 stop21h 39mFrontier

Deal found 3/31

$258

Fri 4/112:48 pmBUF - ORD

1 stop10h 48mFrontier

Sat 4/127:30 amORD - BUF

1 stop8h 48mFrontier

Deal found 3/31

$268

Fri 4/117:19 pmBUF - ORD

1 stop5h 30mAmerican Airlines

Mon 4/146:50 pmORD - BUF

Nonstop1h 45mAmerican Airlines

Deal found 4/2

$561

Fri 4/116:22 amBUF - ORD

1 stop3h 50mDelta

Mon 4/145:05 pmORD - BUF

1 stop4h 55mDelta

Deal found 4/2

$571

Fri 4/1111:35 amBUF - ORD

1 stop7h 20mSouthwest

Sun 4/134:00 pmORD - BUF

2 stops7h 05mSouthwest

Deal found 4/1

$576

Sat 4/121:59 pmBUF - ORD

Nonstop1h 58mUnited Airlines

Sat 4/126:25 pmORD - BUF

Nonstop1h 46mUnited Airlines

Deal found 4/1

$651

Sat 4/1212:05 pmBUF - ORD

1 stop8h 22mJetBlue

Sun 4/1310:42 amORD - BUF

1 stop6h 35mJetBlue

Deal found 3/31

$630

Wed 4/3010:54 amBUF - ORD

Nonstop2h 00mUnited Airlines

Wed 5/76:35 pmORD - BUF

Nonstop1h 47mUnited Airlines

Deal found 3/31

$253

Fri 5/25:45 amBUF - ORD

1 stop17h 38mDelta

Wed 5/75:15 pmORD - BUF

1 stop4h 31mDelta

Deal found 4/1

$304

Wed 5/286:01 amBUF - ORD

1 stop8h 34mAmerican Airlines

Sat 5/318:30 pmORD - BUF

Nonstop1h 52mAmerican Airlines

Deal found 4/1

$256

Wed 5/286:10 amBUF - ORD

1 stop7h 55mSouthwest

Sat 5/3112:40 pmORD - BUF

2 stops9h 30mSouthwest

Deal found 4/1

$274

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 April 2, 2025.

Thu 5/13:51 pmBUF - ORD

1 stop8h 20mFrontier

Deal found 4/1

$79

Tue 4/297:05 amBUF - ORD

1 stop6h 21mJetBlue

Deal found 3/31

$104

Thu 6/1211:46 amBUF - ORD

1 stop8h 25mSun Country Air

Deal found 4/1

$123

Sat 5/243:00 pmBUF - ORD

Nonstop1h 53mAmerican Airlines

Deal found 4/1

$125

Wed 5/76:45 amBUF - ORD

Nonstop1h 58mUnited Airlines

Deal found 4/1

$127

Wed 5/146:10 amBUF - ORD

1 stop7h 55mSouthwest

Deal found 3/31

$137

Mon 5/126:30 amBUF - ORD

1 stop4h 21mDelta

Deal found 4/1

$153

Thu 6/511:41 amBUF - ORD

2 stops22h 14mMultiple Airlines

Deal found 4/1

$187

Cheapflights Fare Finder

Use the filters below to find and compare flights from Buffalo to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Wed 4/30

10:54 am-11:54 am

Nonstop2h 00m

Chicago O'Hare Intl

Wed 5/7

6:35 pm-9:22 pm

Nonstop1h 47m

$253

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Wed 5/28

6:01 am-1:35 pm

1 stop8h 34m

Chicago O'Hare Intl

Sat 5/31

8:30 pm-11:22 pm

Nonstop1h 52m

$256

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Mon 4/28

9:52 am-11:36 pm

1 stop14h 44m

Chicago O'Hare Intl

Sun 5/4

1:01 pm-7:48 pm

1 stop5h 47m

$258

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Sat 5/24

6:55 pm-11:17 pm

1 stop5h 22m

Chicago O'Hare Intl

Tue 5/27

3:57 pm-11:55 pm

1 stop6h 58m

$271

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Wed 5/28

6:10 am-1:05 pm

1 stop7h 55m

Chicago O'Hare Intl

Sat 5/31

12:40 pm-11:10 pm

2 stops9h 30m

$274

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Thu 5/1

3:51 pm-11:11 pm

1 stop8h 20m

$79

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Tue 5/6

10:33 am-3:04 pm

1 stop5h 31m

$114

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Thu 6/12

11:46 am-7:11 pm

1 stop8h 25m

$123

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Sat 5/24

3:00 pm-3:53 pm

Nonstop1h 53m

$125

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Wed 5/7

6:45 am-7:43 am

Nonstop1h 58m

$127

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/1

Showing 1-10 of 13 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 April.

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

Cheapflights partnered with top experts to bring you the best recommendations for 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

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.

Cheapflights Insights

Everything you need to know about your flight from Buffalo to Chicago O'Hare Intl Airport

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 $321). 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 30% on the cost of your flight, compared to a flight at noon.

Weekly flight availability from Buffalo to Chicago O'Hare Intl Airport

The most flights from BUF to ORD are scheduled on a Monday (24 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (12 on average).

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

8.0

Very good

4,272 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Southwest

8.0

Very good

4,272 reviews

Southwest

8.0

Very good

4,272 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Delta

8.0

Very good

7,898 reviews

Southwest

8.0

Very good

4,272 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

United Airlines

7.4

Good

8,616 reviews

Southwest

8.0

Very good

4,272 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

JetBlue

7.3

Good

2,922 reviews

Southwest

8.0

Very good

4,272 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

American Airlines

7.2

Good

10,000 reviews

Southwest

8.0

Very good

4,272 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

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 18 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?
United Airlines, at $253, was found to be the cheapest airline from Buffalo to Chicago O'Hare Intl Airport.Alternate airlines to your destination round-trip include American Airlines and Frontier. United Airlines is currently priced 26% 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?
$79 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 $104 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: Qatar Airways (95%), Avianca (91%), Copa Airlines( 88%).
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 $132. On average you can expect to pay $1,102. The most popular route, (Buffalo - Chicago O'Hare Intl), can usually be booked for $178.
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 $321). 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.

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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$156	Average$371	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$173	Average$332	FlexibilityNo cancel fee	On-time71%

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$79+ 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 5/1. 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

Cheapflights Tip: The best prices from Buffalo to Chicago O'Hare Intl are usually found in September or January, booked 86 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

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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 April 2, 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 April 2, 2025.

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Use the filters below to find and compare flights from Buffalo to Chicago O'Hare Intl Airport that are best for you.

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 April.

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

Cheapflights partnered with top experts to bring you the best recommendations for your Buffalo to Chicago O'Hare Intl Airport trip

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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.

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Everything you need to know about your flight from Buffalo to Chicago O'Hare Intl Airport

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 March 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 April 2, 2025.

Weekly flight availability from Buffalo to Chicago O'Hare Intl Airport

Explore weekly flight availability from Buffalo to O'Hare Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 2, 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?

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Alternative routes for Buffalo to O'Hare Intl

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Top 3 airlines flying from Buffalo to O'Hare Intl

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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 April 2, 2025.