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$90+ Cheap flights from Chicago (CHI) to Buffalo (BUF)

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 4/27. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BUF
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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Find cheap flights from Chicago to Buffalo 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
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Cheapflights Tip: The best prices from Chicago to Buffalo are usually found in August or September, booked 82 days in advance, depart on a Wednesday or Thursday and return on a Friday

Cheap flight deals from Chicago to Buffalo

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Buffalo (BUF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$168
(Frontier)

One-way from

$90
(Booking.com)

Popular in

January

Cheapest in

August

Average price

$356

Good round-trip deal

$280 or less

Good one-way deal

$184 or less
Provider with most accurate pricing for Chicago (CHI)-Buffalo flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Buffalo flights.
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From Chicago (CHI) to Buffalo
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One-way flight from Chicago (CHI) to Buffalo
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Highest demand for flights based on searches. 14% potential increase in price ($56 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Price to beat on a round-trip flight from Chicago (CHI) to Buffalo.
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Price to beat on a one-way flight from Chicago (CHI) to Buffalo.
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Find flight deals from Chicago to Buffalo

Cheapest flights from Chicago to Buffalo
Explore the most affordable flight options available from Chicago to Buffalo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

This Frontier deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/162:00 pmORD - BUF
1 stop9h 15mFrontier
Mon 4/212:48 pmBUF - ORD
1 stop10h 35mFrontier
Deal found 3/27$168
This Frontier deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1110:55 amMDW - BUF
1 stop6h 33mFrontier
Sun 5/189:51 amBUF - MDW
1 stop8h 39mFrontier
Deal found 3/27$189
This JetBlue Airways deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/111:35 pmORD - BUF
1 stop4h 46mJetBlue
Mon 9/1512:15 pmBUF - ORD
1 stop6h 20mJetBlue
Deal found 3/27$213
This American Airlines deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/179:18 amORD - BUF
Nonstop1h 43mAmerican Airlines
Sun 4/2012:44 pmBUF - ORD
Nonstop1h 58mAmerican Airlines
Deal found 3/27$264
This Southwest deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/296:40 pmMDW - BUF
Nonstop1h 25mSouthwest
Tue 5/67:05 amBUF - MDW
Nonstop1h 40mSouthwest
Deal found 3/27$279
This Delta deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/275:15 pmORD - BUF
1 stop4h 31mDelta
Tue 6/312:05 pmBUF - ORD
1 stop5h 42mDelta
Deal found 3/27$299
This United Airlines deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/261:28 pmORD - BUF
1 stop4h 20mUnited Airlines
Mon 4/287:00 amBUF - ORD
Nonstop1h 58mUnited Airlines
Deal found 3/26$304
This Delta deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/96:25 pmMDW - BUF
1 stop3h 21mDelta
Fri 5/169:02 amBUF - MDW
1 stop4h 26mDelta
Deal found 3/27$329
This Southwest deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/131:50 pmORD - BUF
1 stop4h 05mSouthwest
Sun 5/185:35 amBUF - ORD
1 stop7h 15mSouthwest
Deal found 3/27$334
This Booking.com deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/15:14 pmORD - BUF
1 stop14h 38mMultiple Airlines
Mon 8/411:40 amBUF - ORD
1 stop8h 31mMultiple Airlines
Deal found 3/27$363
This flugladen.de deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/179:18 amORD - BUF
Nonstop1h 43mAlaska Airlines
Mon 4/216:00 amBUF - ORD
1 stop7h 09mAlaska Airlines
Deal found 3/27$370
This Mytrip deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1110:31 amMDW - BUF
3 stops47h 13mMultiple Airlines
Sun 7/2011:40 amBUF - MDW
2 stops23h 01mMultiple Airlines
Deal found 3/27$727

Cheapflights Fare Finder

Customize your flight search to find flights from Chicago to Buffalo that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 28, 2025.
Use the filters below to find and compare flights from Chicago to Buffalo that are best for you.

Fly from

Chicago

Fly to

Buffalo

Route

Depart

Return

Price

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Wed 4/16

2:00 pm-12:15 am

1 stop9h 15m

Buffalo

Mon 4/21

2:48 pm-12:23 am

1 stop10h 35m

$168

ChicagoBuffalo

MDW - BUF

MDWBUF

Chicago Midway

Sun 5/11

10:55 am-6:28 pm

1 stop6h 33m

Buffalo

Sun 5/18

9:51 am-5:30 pm

1 stop8h 39m

$189

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Thu 9/11

1:35 pm-7:21 pm

1 stop4h 46m

Buffalo

Mon 9/15

12:15 pm-5:35 pm

1 stop6h 20m

$213

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Thu 4/17

9:18 am-12:01 pm

Nonstop1h 43m

Buffalo

Sun 4/20

12:44 pm-1:42 pm

Nonstop1h 58m

$264

ChicagoBuffalo

MDW - BUF

MDWBUF

Chicago Midway

Tue 4/29

6:40 pm-9:05 pm

Nonstop1h 25m

Buffalo

Tue 5/6

7:05 am-7:45 am

Nonstop1h 40m

$279

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Tue 5/27

5:15 pm-10:46 pm

1 stop4h 31m

Buffalo

Tue 6/3

12:05 pm-4:47 pm

1 stop5h 42m

$299

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Sat 4/26

1:28 pm-6:48 pm

1 stop4h 20m

Buffalo

Mon 4/28

7:00 am-7:58 am

Nonstop1h 58m

$304

ChicagoBuffalo

MDW - BUF

MDWBUF

Chicago Midway

Fri 5/9

6:25 pm-10:46 pm

1 stop3h 21m

Buffalo

Fri 5/16

9:02 am-12:28 pm

1 stop4h 26m

$329

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Tue 5/13

1:50 pm-6:55 pm

1 stop4h 05m

Buffalo

Sun 5/18

5:35 am-11:50 am

1 stop7h 15m

$334

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Fri 8/1

5:14 pm-8:52 am

1 stop14h 38m

Buffalo

Mon 8/4

11:40 am-7:11 pm

1 stop8h 31m

$363

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 24 results
1
2
3

Compare providers for flights from Chicago to Buffalo

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 Chicago to Buffalo in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust 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 Chicago-Buffalo flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago-Buffalo flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago-Buffalo flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago-Buffalo 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 Chicago-Buffalo flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Chicago to Buffalo

Have a flexible travel schedule? Discover the best time to fly to Buffalo from Chicago 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 Chicago to Buffalo

How far ahead should I book a flight from Chicago to Buffalo?

Use this chart to determine the optimal time to book a round-trip flight from Chicago to Buffalo. Price data was last updated on March 21, 2025.

The best time to book flights from Chicago to Buffalo is 82 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Chicago to Buffalo?

Currently, January is the cheapest month in which you can book a flight from Chicago to Buffalo (average of $256). Flying from Chicago to Buffalo in December is currently the most expensive (average of $337). 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 CHI to BUF?

Find hourly flight availability from Chicago to Buffalo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 28, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 10% on flights from Chicago to Buffalo by exploring options for tickets in the evening.

What is the cheapest day to fly from Chicago to Buffalo?

Use this chart to determine the cheapest time to fly round-trip from Chicago to Buffalo. Price data was last updated on March 23, 2025.

Travelers seeking maximum savings on their Chicago to Buffalo flight should consider departing on Saturday evenings when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Buffalo by month

Plan your trip to Buffalo by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Buffalo ranges from 2.5 - 4.0 inches per month. November is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Buffalo when rainfall is around 2.5 in.

Temperature in Buffalo by month

Plan your trip to Buffalo by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Buffalo, 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 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 24.8 F).

Reviews of airlines servicing Buffalo

Get insights into the airlines that provide service to Buffalo. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Buffalo. Reviews last updated March 28, 2025.
See what other customers who have flown with Southwest, Alaska Airlines and Delta from Chicago to Buffalo have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,273 reviews

Crew

8.6

Boarding

8.2

Overall

8.1

Food

7.1

Comfort

8.1

Entertainment

7.6

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
8.1
Very good
4,273 reviews
Southwest
8.1
Very good
4,273 reviews

Crew

8.6

Boarding

8.2

Overall

8.1

Food

7.1

Comfort

8.1

Entertainment

7.6

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.
Alaska Airlines
8.0
Very good
9,798 reviews
Southwest
8.1
Very good
4,273 reviews

Crew

8.6

Boarding

8.2

Overall

8.1

Food

7.1

Comfort

8.1

Entertainment

7.6

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
7,896 reviews
Southwest
8.1
Very good
4,273 reviews

Crew

8.6

Boarding

8.2

Overall

8.1

Food

7.1

Comfort

8.1

Entertainment

7.6

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
8,603 reviews
Southwest
8.1
Very good
4,273 reviews

Crew

8.6

Boarding

8.2

Overall

8.1

Food

7.1

Comfort

8.1

Entertainment

7.6

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
2,923 reviews
Southwest
8.1
Very good
4,273 reviews

Crew

8.6

Boarding

8.2

Overall

8.1

Food

7.1

Comfort

8.1

Entertainment

7.6

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

Find useful and relevant information for your journey from Chicago to Buffalo. 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 into for flights to Buffalo from Chicago?

    Located just 8.3 mi from the city center, Buffalo is the airport most travelers will use when flying to Buffalo from Chicago. Booking flights from Chicago to Buffalo (BUF) should be relatively easy as there are 9 daily inbound flights from Chicago from 4 different airlines.

  • What are the cheapest airlines flying from Chicago to Buffalo round-trip?

    Flying on Frontier is currently your cheapest option to Buffalo, with prices starting at $168. Additional round-trip tickets that might be worth considering are offered by JetBlue and American Airlines, with the lowest prices starting at $187 and $264, respectively. Frontier is currently priced 50% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Chicago to Buffalo one-way?

    $90 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 American Airlines, with prices starting from $104 and $125, respectively.

  • What are the most reliable airlines from Chicago to Buffalo?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Chicago to Buffalo on time: Copa Airlines (100%), GoJet (91%), Alaska Airlines (85%).

  • What are the cheapest flights from Chicago to Buffalo?

    On average you can expect to pay $273 for a flight from Chicago to Buffalo. The cheapest flight overall is $154 while the most popular route, (Chicago O'Hare Intl - Buffalo) is currently priced at $187.

  • Can I find deals for flights from Chicago to Buffalo that include hotel bookings?

    Yes. In addition to deals on Chicago to Buffalo flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Chicago to Buffalo?

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

  • Can I find deals for business class flights from Chicago to Buffalo?

    Yes. Cheapflights offers flight deals from Chicago to Buffalo 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 Chicago to Buffalo?

    Currently, January is the cheapest month in which you can book a flight from Chicago to Buffalo (average of $256). Flying from Chicago to Buffalo in December is currently the most expensive (average of $337). 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

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
West Seneca
Williamsville
Amherst
Batavia
Orchard Park
Cheektowaga

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Alternative routes for Chicago to Buffalo

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to LaGuardia flights
O'Hare Intl to John F Kennedy Intl flights
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Top 4 airlines flying from Chicago to Buffalo

Discover the top 4 airlines that operate flights from Chicago to Buffalo. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$101Average$174FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$166Average$324FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$198Average$374FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$225Average$355FlexibilityNo cancel feeOn-time63%
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