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$74+ Cheap flights from Illinois 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 1/27. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BUF
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
1 adult, Economy
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Cheap flight deals from Illinois to Buffalo

Discover tips and strategies to find the most affordable flight options for your journey from Illinois (USIL) 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 November 20, 2024.

Find flight deals from Illinois to Buffalo

Cheapest flights from Illinois to Buffalo
Explore the most affordable flight options available from Illinois to Buffalo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2024.

This CheapOair deal was found by Cheapflights users on 11/19. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/135:02 pmSTL - BUF
1 stop15h 50mFrontier
Sun 12/153:27 pmBUF - STL
1 stop17h 48mFrontier
Deal found 11/19$178
This CheapOair deal was found by Cheapflights users on 11/19. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/59:35 amORD - BUF
1 stop9h 40mFrontier
Sun 12/83:27 pmBUF - ORD
1 stop19h 27mFrontier
Deal found 11/19$218
This CheapOair deal was found by Cheapflights users on 11/19. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/232:56 pmMDW - BUF
1 stop16h 20mFrontier
Wed 11/2712:21 pmBUF - MDW
1 stop9h 31mFrontier
Deal found 11/19$252
This American Airlines deal was found by Cheapflights users on 11/18. 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 12/56:00 amMLI - BUF
1 stop3h 42mAmerican Airlines
Mon 12/96:19 pmBUF - MLI
1 stop4h 07mAmerican Airlines
Deal found 11/18$253
This United Airlines deal was found by Cheapflights users on 11/19. 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.
Wed 12/43:16 pmPIA - BUF
1 stop4h 44mUnited Airlines
Sun 12/87:00 amBUF - PIA
1 stop4h 19mUnited Airlines
Deal found 11/19$258
This JetBlue deal was found by Cheapflights users on 11/19. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/64:40 pmORD - BUF
1 stop4h 44mJetBlue
Tue 12/1010:10 amBUF - ORD
1 stop6h 43mJetBlue
Deal found 11/19$268
This American Airlines deal was found by Cheapflights users on 11/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/125:05 amSTL - BUF
1 stop4h 41mAmerican Airlines
Sun 12/157:16 amBUF - STL
1 stop4h 24mAmerican Airlines
Deal found 11/20$286
This Southwest deal was found by Cheapflights users on 11/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/225:10 pmMDW - BUF
1 stop5h 40mSouthwest
Wed 12/256:50 pmBUF - MDW
Nonstop1h 45mSouthwest
Deal found 11/19$303
This American Airlines deal was found by Cheapflights users on 11/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/126:50 pmORD - BUF
Nonstop1h 48mAmerican Airlines
Sun 12/157:16 amBUF - ORD
Nonstop2h 01mAmerican Airlines
Deal found 11/20$308
This United Airlines deal was found by Cheapflights users on 11/19. 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.
Sun 12/226:20 pmORD - BUF
Nonstop1h 41mUnited Airlines
Wed 12/257:00 amBUF - ORD
Nonstop2h 04mUnited Airlines
Deal found 11/19$313
This United Airlines deal was found by Cheapflights users on 11/19. 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.
Wed 12/43:55 pmMLI - BUF
1 stop4h 05mUnited Airlines
Sun 12/87:00 amBUF - MLI
1 stop4h 22mUnited Airlines
Deal found 11/19$328
This Southwest deal was found by Cheapflights users on 11/20. 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.
Thu 12/195:40 amSTL - BUF
1 stop5h 50mSouthwest
Sat 12/219:00 pmBUF - STL
1 stop4h 05mSouthwest
Deal found 11/20$341

Find flights from Illinois to Buffalo within your budget

Customize your flight search to find flights from Illinois 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 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisBuffalo

STL - BUF

STLBUF

Lambert-St Louis

Fri 12/13

5:02 pm-9:52 am

1 stop15h 50m

Buffalo

Sun 12/15

3:27 pm-8:15 am

1 stop17h 48m

$178

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Thu 12/5

9:35 am-8:15 pm

1 stop9h 40m

Buffalo

Sun 12/8

3:27 pm-9:54 am

1 stop19h 27m

$218

PeoriaBuffalo

PIA - BUF

PIABUF

Greater Peoria

Wed 1/22

5:00 am-11:05 am

1 stop5h 05m

Buffalo

Mon 1/27

3:05 pm-7:58 pm

1 stop5h 53m

$228

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Sun 2/9

4:41 pm-6:55 pm

2 stops25h 14m

Buffalo

Wed 2/12

6:25 am-3:33 pm

1 stop10h 08m

$238

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Thu 2/13

5:40 pm-11:34 pm

1 stop4h 54m

Buffalo

Sun 2/16

11:32 am-4:45 pm

1 stop6h 13m

$242

ChicagoBuffalo

MDW - BUF

MDWBUF

Chicago Midway

Mon 1/6

6:30 pm-8:55 pm

Nonstop1h 25m

Buffalo

Tue 1/7

6:45 am-7:30 am

Nonstop1h 45m

$243

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Mon 1/6

8:52 am-11:41 am

Nonstop1h 49m

Buffalo

Tue 1/7

3:05 pm-4:05 pm

Nonstop2h 00m

$252

MolineBuffalo

MLI - BUF

MLIBUF

Moline Quad-City

Thu 12/5

6:00 am-10:42 am

1 stop3h 42m

Buffalo

Mon 12/9

6:19 pm-9:26 pm

1 stop4h 07m

$253

PeoriaBuffalo

PIA - BUF

PIABUF

Greater Peoria

Wed 12/4

3:16 pm-9:00 pm

1 stop4h 44m

Buffalo

Sun 12/8

7:00 am-10:19 am

1 stop4h 19m

$258

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Mon 1/6

11:25 am-10:15 pm

2 stops9h 50m

Buffalo

Tue 1/7

6:15 am-4:45 pm

2 stops11h 30m

$271

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 36 results
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Best time to book a flight from Illinois to Buffalo

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

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

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

Currently, January is the cheapest month in which you can book a flight from Illinois to Buffalo (average of $256). Flying from Illinois to Buffalo in July is currently the most expensive (average of $322). 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 IL to BUF?

Find hourly flight availability from Illinois 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 November 20, 2024.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Buffalo as you normally would.

Weekly flight availability from Illinois to Buffalo

Explore weekly flight availability from Illinois 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 November 20, 2024.

The most flights from USIL to BUF are scheduled on a Wednesday (26 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 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 November 20, 2024.
To help decide which airline to fly from Illinois to Buffalo, see what other customers have to say about Frontier, American Airlines and Southwest. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,014 reviews

Crew

8.7

Comfort

8.1

Overall

8.1

Boarding

8.2

Entertainment

7.7

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Southwest
8.1
Very good
5,014 reviews
Southwest
8.1
Very good
5,014 reviews

Crew

8.7

Comfort

8.1

Overall

8.1

Boarding

8.2

Entertainment

7.7

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Delta
8.0
Very good
8,756 reviews
Southwest
8.1
Very good
5,014 reviews

Crew

8.7

Comfort

8.1

Overall

8.1

Boarding

8.2

Entertainment

7.7

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Aeromexico
7.5
Good
2,004 reviews
Southwest
8.1
Very good
5,014 reviews

Crew

8.7

Comfort

8.1

Overall

8.1

Boarding

8.2

Entertainment

7.7

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

JetBlue
7.5
Good
3,394 reviews
Southwest
8.1
Very good
5,014 reviews

Crew

8.7

Comfort

8.1

Overall

8.1

Boarding

8.2

Entertainment

7.7

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

United Airlines
7.4
Good
9,171 reviews
Southwest
8.1
Very good
5,014 reviews

Crew

8.7

Comfort

8.1

Overall

8.1

Boarding

8.2

Entertainment

7.7

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Related info for your journey

Find useful and relevant information for your journey from Illinois 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 Illinois?

    If you book a flight to Buffalo from Illinois, you will be flying to Buffalo, which is the city’s only airport. Buffalo (BUF) is located 8.3 mi from the center of Buffalo.

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

    One-way options have recently been found by users for as low as $74 on Frontier. Other airlines that offer cheap prices include JetBlue from $93 and Southwest from $119 one-way.

  • What are the most popular routes from Illinois to Buffalo?

    The most popular flight routes from Illinois to Buffalo are Chicago O'Hare Intl - Buffalo, Chicago Midway - Buffalo and Lambert-St Louis - Buffalo.

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

    Before booking your flight to Buffalo from Illinois, check out the most reliable airlines to get you to your destination on time: Republic Airways (100%), SkyWest Airlines (97%), Envoy Air( 91%).

  • What are the cheapest flights from Illinois to Buffalo?

    While on average a flight from Illinois to Buffalo is generally $310, our data shows the cheapest flight currently is $164. When looking at the most popular route, (Chicago O'Hare Intl - Buffalo), you can expect to pay $177 for that flight.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Illinois to Buffalo (average of $256). Flying from Illinois to Buffalo in July is currently the most expensive (average of $322). 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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Alternative routes for Illinois to Buffalo

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Top 4 airlines flying from Illinois to Buffalo

Discover the top 4 airlines that operate flights from Illinois 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 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$101Average$174FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$150Average$374FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$196Average$383FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$225Average$355FlexibilityNo cancel feeOn-time63%
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