HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Chicago

$55+ Cheap flights from Buffalo (BUF) to Chicago (CHI)

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 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — CHI
dez 13 — dez 201
sáb 12/13
sáb 12/20
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Buffalo to Chicago 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.

Cheapflights Tip: The best prices from Buffalo to Chicago are usually found in August or September, booked 84 days in advance, depart on a Friday or Thursday and return on a Tuesday

Cheap flight deals from Buffalo to Chicago

Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) to Chicago (CHI). 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 novembro 13, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$110
(Expedia)

One-way from

$55
(Priceline)

Popular in

February

Cheapest in

August

Average price

$360

Good round-trip deal

$312 or less

Good one-way deal

$174 or less
Provider with most accurate pricing for Buffalo-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Buffalo-Chicago (CHI) flights.
Search Deals
From Buffalo to Chicago (CHI)
Search Deals
One-way flight from Buffalo to Chicago (CHI)
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($23 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Buffalo to Chicago (CHI).
Search Deals
Price to beat on a one-way flight from Buffalo to Chicago (CHI).
Search Deals

Find flight deals from Buffalo to Chicago

Cheapest flights from Buffalo to Chicago
Explore the most affordable flight options available from Buffalo to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on novembro 13, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 11/2110:24 amBUF - MDW
1 stop13h 19mFrontier
dom 11/236:05 amMDW - BUF
1 stop26h 21mFrontier
Deal found 11/12$156
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 11/2110:24 amBUF - ORD
1 stop14h 44mFrontier
dom 11/236:35 pmORD - BUF
1 stop13h 51mFrontier
Deal found 11/12$156
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 12/512:37 pmBUF - MDW
1 stop11h 02mFrontier
dom 12/76:37 pmMDW - BUF
1 stop18h 38mFrontier
Deal found 11/12$163
This JetBlue deal was found by Cheapflights users on 11/12. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 12/35:00 pmBUF - ORD
1 stop5h 52mJetBlue
qua 12/107:00 amORD - BUF
1 stop7h 59mJetBlue
Deal found 11/12$169
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 12/412:35 pmBUF - MDW
1 stop6h 33mFrontier
sex 12/123:52 pmMDW - BUF
1 stop21h 23mFrontier
Deal found 11/11$172
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 12/512:37 pmBUF - ORD
1 stop10h 11mMultiple Airlines
dom 12/72:36 pmORD - BUF
1 stop22h 39mMultiple Airlines
Deal found 11/12$172
This Expedia deal was found by Cheapflights users on 11/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 12/95:00 pmBUF - ORD
1 stop5h 52mJetBlue
qua 12/107:00 amORD - BUF
1 stop7h 59mJetBlue
Deal found 11/11$181
This Kiwi.com deal was found by Cheapflights users on 11/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 12/1112:35 pmBUF - MDW
1 stop6h 33mFrontier
qui 12/186:33 pmMDW - BUF
1 stop21h 12mFrontier
Deal found 11/13$190
This Kiwi.com deal was found by Cheapflights users on 11/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 12/1112:35 pmBUF - ORD
1 stop10h 49mFrontier
qui 12/1812:39 pmORD - BUF
1 stop27h 06mFrontier
Deal found 11/13$190
This JetBlue deal was found by Cheapflights users on 11/11. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 12/55:00 pmBUF - ORD
1 stop5h 52mJetBlue
dom 12/77:00 amORD - BUF
1 stop7h 59mJetBlue
Deal found 11/11$195
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 12/1212:37 pmBUF - MDW
2 stops10h 35mMultiple Airlines
sex 12/196:12 amMDW - BUF
1 stop9h 33mMultiple Airlines
Deal found 11/12$203
This Kiwi.com deal was found by Cheapflights users on 11/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 12/1211:30 amBUF - ORD
1 stop11h 54mFrontier
dom 12/142:36 pmORD - BUF
2 stops19h 09mFrontier
Deal found 11/10$209

Cheapflights Fare Finder

 
Customize your flight search to find flights from Buffalo to Chicago 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 novembro 13, 2025.
Use the filters below to find and compare flights from Buffalo to Chicago that are best for you.

Fly from

Buffalo

Fly to

Chicago

Route

Depart

Return

Price

BuffaloChicago

BUF - MDW

BUFMDW

Buffalo

seg 2/2

1:39 pm-10:19 pm

1 stop9h 40m

Chicago Midway

qui 2/5

6:20 am-12:44 pm

1 stop5h 24m

$110

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

sex 12/5

5:00 pm-9:52 pm

1 stop5h 52m

Chicago O'Hare Intl

dom 12/7

7:00 am-3:59 pm

1 stop7h 59m

$195

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

qua 2/25

6:00 am-11:48 am

1 stop6h 48m

Chicago O'Hare Intl

dom 3/1

12:41 pm-8:38 pm

1 stop6h 57m

$195

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

ter 1/20

10:00 am-5:44 pm

1 stop8h 44m

Chicago O'Hare Intl

ter 2/10

7:45 am-2:30 pm

1 stop5h 45m

$209

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

qua 1/7

10:00 am-5:44 pm

1 stop8h 44m

Chicago O'Hare Intl

sex 1/9

7:45 am-2:30 pm

1 stop5h 45m

$209

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

dom 3/1

6:00 am-11:48 am

1 stop6h 48m

Chicago O'Hare Intl

ter 3/3

12:41 pm-6:33 pm

1 stop4h 52m

$218

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

sex 1/16

6:00 am-1:50 pm

1 stop8h 50m

Chicago O'Hare Intl

dom 1/18

9:05 pm-11:48 pm

Nonstop1h 43m

$261

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

ter 12/16

11:26 am-7:24 pm

1 stop8h 58m

Chicago O'Hare Intl

qui 12/18

7:55 pm-10:33 pm

Nonstop1h 38m

$267

BuffaloChicago

BUF - MDW

BUFMDW

Buffalo

ter 12/9

6:15 am-7:05 am

Nonstop1h 50m

Chicago Midway

qua 12/10

1:25 pm-3:50 pm

Nonstop1h 25m

$269

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

ter 12/9

5:40 pm-6:46 pm

Nonstop2h 06m

Chicago O'Hare Intl

qua 12/10

10:35 am-1:12 pm

Nonstop1h 37m

$269

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/13

Showing 1-10 of 38 results
1
2
3
4

Compare providers for flights from Buffalo to Chicago

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 Chicago in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star

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

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

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

Use this chart to determine the optimal time to book a round-trip flight from Buffalo to Chicago. Price data was last updated on November 7, 2025.

The best time to book flights from Buffalo to Chicago is 84 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 Buffalo to Chicago?

Currently, July is the cheapest month in which you can book a flight from Buffalo to Chicago (average of $77). Flying from Buffalo to Chicago in January is currently the most expensive (average of $232). 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 CHI?

Find hourly flight availability from Buffalo to Chicago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated novembro 13, 2025.

It’s optimal to fly from Buffalo to Chicago in the evening. By choosing this option you can save up to 31% on the cost of your flight, compared to a flight at noon.

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

Use this chart to determine the cheapest time to fly round-trip from Buffalo to Chicago. Price data was last updated on November 2, 2025.

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

Weekly flight availability from Buffalo to Chicago

Explore weekly flight availability from Buffalo to Chicago. 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 novembro 13, 2025.

The most flights from BUF to CHI are scheduled on a Monday (33 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (21 on average).

How much does it cost to fly round-trip from Buffalo to Chicago?

Reviews of airlines servicing Chicago

Get insights into the airlines that provide service to Chicago. 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 Chicago. Reviews last updated novembro 13, 2025.
Peruse reviews from past customers who have flown with Southwest, United Airlines, and American Airlines from Buffalo to Chicago to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,236 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,236 reviews
Southwest
8.0
Very good
4,236 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
9,015 reviews
Southwest
8.0
Very good
4,236 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
11,050 reviews
Southwest
8.0
Very good
4,236 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,114 reviews
Southwest
8.0
Very good
4,236 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

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

    Located just 8.3 mi from the city center, Buffalo is the airport most travelers will use when flying to Chicago from Buffalo. Booking flights from Buffalo (BUF) to Chicago should be relatively easy as there are 29 daily outbound flights to Chicago from 4 different airlines.

  • How long is the flight from Buffalo to Chicago?

    There are many flights that can get you from Buffalo to Chicago in 1h 50m. Fly via Frontier, JetBlue, or Southwest to get the fastest option. Airlines will cover a distance of 466 mi. This flight may include one or multiple stops.

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

    Flying on Frontier is currently your cheapest option to Chicago, with prices starting at $58. Additional round-trip tickets that might be worth considering are offered by American Airlines and United Airlines, with the lowest prices starting at $160 and $175, respectively. Frontier is priced at 81% lower than the current average price of a flight leaving 3 months from now.

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

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $61. Users have also found prices from $97 and $135 on JetBlue and Southwest, respectively.

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

    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 Buffalo to Chicago on time: Copa Airlines (94%), Japan Airlines (93%), Royal Jordanian (85%).

  • What are the cheapest flights from Buffalo to Chicago?

    On average you can expect to pay $798 for a flight from Buffalo to Chicago. The cheapest flight overall is $131 while the most popular route, (Buffalo - Chicago O'Hare Intl) is currently priced at $121.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Buffalo to Chicago 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?

    Currently, July is the cheapest month in which you can book a flight from Buffalo to Chicago (average of $77). Flying from Buffalo to Chicago in January is currently the most expensive (average of $232). 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
Lansing
Hammond
Porter
Benton Harbor
Merrillville

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 Chicago

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to O'Hare Intl flights
LaGuardia to O'Hare Intl flights
Newark to O'Hare Intl flights
John F Kennedy Intl to Midway flights
LaGuardia to Midway flights
John F Kennedy Intl to St. Louis flights
Newark to St. Louis flights
LaGuardia to St. Louis flights
Syracuse to O'Hare Intl flights
Rochester to O'Hare Intl flights
Buffalo to O'Hare Intl flights
Newark to Midway flights
White Plains to O'Hare Intl flights
Albany to O'Hare Intl flights
Syracuse to Midway flights
Buffalo to Midway flights
Rochester to Midway flights
Albany to Midway flights
Islip to O'Hare Intl flights
White Plains to Midway flights
Stewart to O'Hare Intl flights
Ithaca to O'Hare Intl flights
Albany to St. Louis flights
Syracuse to St. Louis flights
LaGuardia to Moline flights
John F Kennedy Intl to Moline flights
Newark to Moline flights
LaGuardia to Peoria flights
Newark to Peoria flights
Rochester to St. Louis flights
Elmira to St. Louis flights
John F Kennedy Intl to Bloomington flights
John F Kennedy Intl to Champaign flights
LaGuardia to Bloomington flights
Ithaca to Midway flights
Newark to Champaign flights
Binghamton to O'Hare Intl flights
Newark to Evansville flights
John F Kennedy Intl to Evansville flights
LaGuardia to Evansville flights
Stewart to St. Louis flights
John F Kennedy Intl to Peoria flights
Buffalo to St. Louis flights
White Plains to St. Louis flights
LaGuardia to Champaign flights
Binghamton to Midway flights
Buffalo to Moline flights
Newark to Bloomington flights
Albany to Moline flights
Elmira to O'Hare Intl flights

Top 4 airlines flying from Buffalo to Chicago

Discover the top 4 airlines that operate flights from Buffalo to Chicago. 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 novembro 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$58Average$198FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$160Average$326FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$175Average$381FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$259Average$340FlexibilityNo cancel feeOn-time63%

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.