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$39+ 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 6/4. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BUF
abr. 27 — may. 41
dom. 4/27
dom. 5/4
1 adult, Economy
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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 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 abril 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$77
(Southwest)

One-way from

$39
(Southwest)

Popular in

January

Cheapest in

August

Average price

$370

Good round-trip deal

$251 or less

Good one-way deal

$139 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. 13% potential increase in price ($52 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in April 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 abril 22, 2025.

This Southwest deal was found by Cheapflights users on 4/21. 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.
jue. 6/510:00 pmMDW - BUF
Nonstop1h 25mSouthwest
lun. 6/98:30 pmBUF - MDW
Nonstop1h 40mSouthwest
Deal found 4/21$77
This United Airlines deal was found by Cheapflights users on 4/22. 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.
mar. 5/137:25 amORD - BUF
Nonstop1h 47mUnited Airlines
mar. 5/135:57 pmBUF - ORD
Nonstop1h 58mUnited Airlines
Deal found 4/22$77
This American Airlines deal was found by Cheapflights users on 4/22. 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.
jue. 7/38:35 pmORD - BUF
Nonstop1h 52mAmerican Airlines
mar. 7/812:26 pmBUF - ORD
Nonstop1h 58mAmerican Airlines
Deal found 4/22$91
This Frontier deal was found by Cheapflights users on 4/21. 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.
lun. 5/126:55 amORD - BUF
1 stop11h 42mFrontier
jue. 5/153:51 pmBUF - ORD
1 stop8h 20mFrontier
Deal found 4/21$160
This Frontier deal was found by Cheapflights users on 4/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 5/410:55 amMDW - BUF
1 stop6h 33mFrontier
dom. 5/119:51 amBUF - MDW
1 stop8h 39mFrontier
Deal found 4/20$170
This Delta deal was found by Cheapflights users on 4/22. 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.
jue. 7/39:24 amMDW - BUF
1 stop4h 49mDelta
mar. 7/83:50 pmBUF - MDW
1 stop3h 38mDelta
Deal found 4/22$177
This Delta deal was found by Cheapflights users on 4/22. 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. 5/136:00 amORD - BUF
1 stop7h 19mDelta
mar. 5/136:35 pmBUF - ORD
1 stop6h 23mDelta
Deal found 4/22$177
This JetBlue deal was found by Cheapflights users on 4/21. 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.
mar. 6/106:15 amORD - BUF
1 stop6h 38mJetBlue
mié. 6/113:05 pmBUF - ORD
1 stop7h 55mJetBlue
Deal found 4/21$227
This Southwest deal was found by Cheapflights users on 4/22. 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.
sáb. 5/101:30 pmORD - BUF
1 stop8h 40mSouthwest
mar. 5/135:55 amBUF - ORD
1 stop6h 55mSouthwest
Deal found 4/22$266

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 abril 22, 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

MDW - BUF

MDWBUF

Chicago Midway

jue. 6/5

10:00 pm-12:25 am

Nonstop1h 25m

Buffalo

lun. 6/9

8:30 pm-9:10 pm

Nonstop1h 40m

$77

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

mar. 5/13

7:25 am-10:12 am

Nonstop1h 47m

Buffalo

mar. 5/13

5:57 pm-6:55 pm

Nonstop1h 58m

$77

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

jue. 7/3

8:35 pm-11:27 pm

Nonstop1h 52m

Buffalo

mar. 7/8

12:26 pm-1:24 pm

Nonstop1h 58m

$91

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

lun. 5/12

6:55 am-7:37 pm

1 stop11h 42m

Buffalo

jue. 5/15

3:51 pm-11:11 pm

1 stop8h 20m

$160

ChicagoBuffalo

MDW - BUF

MDWBUF

Chicago Midway

dom. 5/4

10:55 am-6:28 pm

1 stop6h 33m

Buffalo

dom. 5/11

9:51 am-5:30 pm

1 stop8h 39m

$170

ChicagoBuffalo

MDW - BUF

MDWBUF

Chicago Midway

jue. 7/3

9:24 am-3:13 pm

1 stop4h 49m

Buffalo

mar. 7/8

3:50 pm-6:28 pm

1 stop3h 38m

$177

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

mar. 5/13

6:00 am-2:19 pm

1 stop7h 19m

Buffalo

mar. 5/13

6:35 pm-11:58 pm

1 stop6h 23m

$177

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

mar. 6/10

6:15 am-1:53 pm

1 stop6h 38m

Buffalo

mié. 6/11

3:05 pm-10:00 pm

1 stop7h 55m

$227

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

sáb. 5/10

1:30 pm-11:10 pm

1 stop8h 40m

Buffalo

mar. 5/13

5:55 am-11:50 am

1 stop6h 55m

$266

ChicagoBuffalo

MDW - BUF

MDWBUF

Chicago Midway

mié. 6/4

6:40 pm-9:05 pm

Nonstop1h 25m

$39

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/21

Showing 1-10 of 20 results
1
2

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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 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 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 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 April 18, 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 abril 22, 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 30, 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.

Weekly flight availability from Chicago to Buffalo

Explore weekly flight availability from Chicago to Buffalo. 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 abril 22, 2025.

The most flights from CHI to BUF are scheduled on a Friday (37 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (21 on average).

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 abril 22, 2025.
See what other customers who have flown with Southwest, Delta and United Airlines 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
8.0
Very good
4,287 reviews

Comfort

8.0

Food

7.1

Boarding

8.2

Overall

8.0

Crew

8.6

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Southwest
8.0
Very good
4,287 reviews
Southwest
8.0
Very good
4,287 reviews

Comfort

8.0

Food

7.1

Boarding

8.2

Overall

8.0

Crew

8.6

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Delta
8.0
Very good
7,920 reviews
Southwest
8.0
Very good
4,287 reviews

Comfort

8.0

Food

7.1

Boarding

8.2

Overall

8.0

Crew

8.6

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
United Airlines
7.4
Good
8,683 reviews
Southwest
8.0
Very good
4,287 reviews

Comfort

8.0

Food

7.1

Boarding

8.2

Overall

8.0

Crew

8.6

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
JetBlue
7.3
Good
2,923 reviews
Southwest
8.0
Very good
4,287 reviews

Comfort

8.0

Food

7.1

Boarding

8.2

Overall

8.0

Crew

8.6

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,287 reviews

Comfort

8.0

Food

7.1

Boarding

8.2

Overall

8.0

Crew

8.6

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!

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 32 daily inbound flights from Chicago from 4 different airlines.

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

    Flying on Southwest is currently your cheapest option to Buffalo, with prices starting at $77. Additional round-trip tickets that might be worth considering are offered by United Airlines and American Airlines, with the lowest prices starting at $77 and $91, respectively. Southwest is currently priced 77% below the average price you’ll pay for this route.

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

    $39 is the cheapest one-way deal found within the past few days, from Southwest. You may also be able to find cheap deals on United Airlines and American Airlines, with prices starting from $39 and $46, 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: SkyWest Airlines (100%), Republic Airways (97%), Copa Airlines (94%).

  • What are the cheapest flights from Chicago to Buffalo?

    On average you can expect to pay $282 for a flight from Chicago to Buffalo. The cheapest flight overall is $124 while the most popular route, (Chicago O'Hare Intl - Buffalo) is currently priced at $207.

  • 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.
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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 abril 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$101Average$183FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$178Average$326FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$225Average$355FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$229Average$379FlexibilityNo cancel feeOn-time69%

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