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$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 4/2. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — CHI
févr. 25 — mars 41
mar. 2/25
mar. 3/4
1 adult, Economy
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The best prices from Buffalo to Chicago are usually found in September or August, booked 80 days in advance, depart on a Friday or Thursday and return on a Wednesday

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 février 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$272
(Delta)

One-way from

$55
(Frontier)

Popular in

February

Cheapest in

September

Average price

$405

Good round-trip deal

$386 or less

Good one-way deal

$186 or less
Provider with most accurate pricing for Buffalo-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Buffalo-Chicago (CHI) flights.
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From Buffalo to Chicago (CHI)
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One-way flight from Buffalo to Chicago (CHI)
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Highest demand for flights based on searches. 5% potential increase in price ($18 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Price to beat on a round-trip flight from Buffalo to Chicago (CHI).
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Price to beat on a one-way flight from Buffalo to Chicago (CHI).
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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 février 20, 2025.

This American Airlines deal was found by Cheapflights users on 2/19. 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.
mar. 3/46:08 amBUF - ORD
1 stop8h 36mAmerican Airlines
ven. 3/78:05 amORD - BUF
Nonstop1h 42mAmerican Airlines
Deal found 2/19$275
This Southwest deal was found by Cheapflights users on 2/20. 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.
jeu. 3/67:55 amBUF - MDW
Nonstop1h 50mSouthwest
lun. 3/109:30 pmMDW - BUF
Nonstop1h 25mSouthwest
Deal found 2/20$277
This Frontier deal was found by Cheapflights users on 2/19. 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.
jeu. 2/272:59 pmBUF - ORD
1 stop8h 07mFrontier
dim. 3/25:05 amORD - BUF
1 stop11h 39mFrontier
Deal found 2/19$290
This Delta deal was found by Cheapflights users on 2/20. 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.
mar. 10/2810:15 amBUF - ORD
1 stop13h 31mDelta
mer. 11/57:00 amORD - BUF
1 stop10h 23mDelta
Deal found 2/20$295
This JetBlue deal was found by Cheapflights users on 2/20. 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.
sam. 3/811:37 amBUF - ORD
1 stop5h 28mJetBlue
mer. 3/1211:44 amORD - BUF
1 stop5h 24mJetBlue
Deal found 2/20$299
This Delta deal was found by Cheapflights users on 2/20. 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.
mer. 3/266:22 amBUF - MDW
1 stop3h 23mDelta
sam. 3/291:12 pmMDW - BUF
1 stop2h 56mDelta
Deal found 2/20$307
This Gotogate deal was found by Cheapflights users on 2/20. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 2/222:47 pmBUF - MDW
1 stop8h 17mFrontier
lun. 2/242:41 pmMDW - BUF
1 stop25h 48mFrontier
Deal found 2/20$318
This Southwest deal was found by Cheapflights users on 2/20. 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.
ven. 3/78:45 amBUF - ORD
1 stop5h 20mSouthwest
lun. 3/107:30 amORD - BUF
2 stops11h 55mSouthwest
Deal found 2/20$347
This United Airlines deal was found by Cheapflights users on 2/19. 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.
dim. 3/165:52 pmBUF - ORD
Nonstop1h 58mUnited Airlines
dim. 3/232:15 pmORD - BUF
Nonstop1h 35mUnited Airlines
Deal found 2/19$360

Find flights from Buffalo to Chicago within your budget

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 février 20, 2025.

Fly from

Buffalo

Fly to

Chicago

Route

Depart

Return

Price

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

mar. 3/4

6:08 am-1:44 pm

1 stop8h 36m

Chicago O'Hare Intl

ven. 3/7

8:05 am-10:47 am

Nonstop1h 42m

$275

BuffaloChicago

BUF - MDW

BUFMDW

Buffalo

jeu. 3/6

7:55 am-8:45 am

Nonstop1h 50m

Chicago Midway

lun. 3/10

9:30 pm-11:55 pm

Nonstop1h 25m

$277

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

ven. 4/4

5:09 pm-2:58 pm

1 stop22h 49m

Chicago O'Hare Intl

dim. 4/6

9:25 am-10:28 am

1 stop24h 03m

$296

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

sam. 3/8

11:37 am-4:05 pm

1 stop5h 28m

Chicago O'Hare Intl

mer. 3/12

11:44 am-6:08 pm

1 stop5h 24m

$299

BuffaloChicago

BUF - MDW

BUFMDW

Buffalo

mer. 3/26

6:22 am-8:45 am

1 stop3h 23m

Chicago Midway

sam. 3/29

1:12 pm-5:08 pm

1 stop2h 56m

$307

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

jeu. 6/19

11:40 am-7:11 pm

1 stop8h 31m

Chicago O'Hare Intl

dim. 7/6

8:10 pm-10:44 am

1 stop13h 34m

$311

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

ven. 3/7

2:25 pm-6:41 pm

1 stop5h 16m

Chicago O'Hare Intl

lun. 3/10

11:30 am-5:39 pm

1 stop5h 09m

$312

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

jeu. 3/6

6:00 am-12:45 pm

2 stops7h 45m

Chicago O'Hare Intl

lun. 3/10

7:00 am-12:50 pm

1 stop4h 50m

$332

BuffaloChicago

BUF - MDW

BUFMDW

Buffalo

ven. 5/30

5:16 pm-12:27 am

1 stop8h 11m

Chicago Midway

dim. 6/1

9:12 pm-8:10 pm

1 stop21h 58m

$348

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

dim. 3/16

5:52 pm-6:50 pm

Nonstop1h 58m

Chicago O'Hare Intl

dim. 3/23

2:15 pm-4:50 pm

Nonstop1h 35m

$360

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 20 results
1
2

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 February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust 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 flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Buffalo-Chicago flight deals on Cheapflights vs. FlightHub >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 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 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.

Travel insights for flights from Buffalo to Chicago

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

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 February 14, 2025.

The best time to book flights from Buffalo to Chicago is 80 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, August is the cheapest month in which you can book a flight from Buffalo to Chicago (average of $245). Flying from Buffalo to Chicago 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 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 février 20, 2025.

It’s optimal to fly from Buffalo to Chicago in the evening. By choosing this option you can save up to 33% 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 February 16, 2025.

Travelers seeking maximum savings on their Buffalo to Chicago flight should consider departing on Wednesday 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.

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 février 20, 2025.

The most flights from BUF to CHI are scheduled on a Thursday (24 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (15 on average).

Rainfall in Chicago by month

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

In terms of precipitation, rainfall in Chicago 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 when rainfall is around 1.7 in.

Temperature in Chicago by month

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

If weather is an important factor for your trip to Chicago, 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 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 février 20, 2025.
Read reviews from past customers who have flown Southwest, Delta and JetBlue from Buffalo to Chicago. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Entertainment

7.6

Comfort

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Entertainment

7.6

Comfort

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,219 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Entertainment

7.6

Comfort

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

JetBlue
7.4
Good
3,070 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Entertainment

7.6

Comfort

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

United Airlines
7.4
Good
8,765 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Entertainment

7.6

Comfort

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Entertainment

7.6

Comfort

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

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 21 daily outbound flights to Chicago from 5 different airlines.

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

    Flying on Delta is currently your cheapest option to Chicago, with prices starting at $272. Additional round-trip tickets that might be worth considering are offered by American Airlines and Southwest, with the lowest prices starting at $275 and $277, respectively. Delta is priced at 16% 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 $55. Users have also found prices from $94 and $123 on JetBlue and Sun Country Air, 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: Avianca (88%), Copa Airlines (85%), Royal Jordanian (84%).

  • What are the cheapest flights from Buffalo to Chicago?

    On average you can expect to pay $1,218 for a flight from Buffalo to Chicago. The cheapest flight overall is $138 while the most popular route, (Buffalo - Chicago O'Hare Intl) is currently priced at $158.

  • 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, August is the cheapest month in which you can book a flight from Buffalo to Chicago (average of $245). Flying from Buffalo to Chicago 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.

See more FAQs

Traveling to a place near Buffalo?

Book flights to Buffalo if you plan to visit one of these locations
Merrillville
New Buffalo
Hammond
Benton Harbor
Porter
Lansing
Valparaiso
Chesterton

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Alternative routes for Buffalo to Chicago

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Buffalo to Chicago

Discover the top 5 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 février 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$95Average$193FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$152Average$361FlexibilityNo cancel feeOn-time69%
DeltaCheapest$156Average$505FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$172Average$329FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$247Average$339FlexibilityNo cancel feeOn-time63%
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