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$54+ 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 2/3. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BUF
Dec 23 — Dec 301
Mon 12/23
Mon 12/30
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 December 18, 2024.

Round-trip from

$109
(Frontier)

One-way from

$54
(Frontier)
From Illinois to Buffalo
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One-way flight from Illinois to Buffalo
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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 December 18, 2024.

This Delta deal was found by Cheapflights users on 12/16. 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.
Wed 12/255:51 pmMDW - BUF
1 stop4h 12mDelta
Tue 1/76:00 amBUF - MDW
1 stop5h 12mDelta
Deal found 12/16$312
This Delta deal was found by Cheapflights users on 12/16. 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.
Wed 12/255:30 pmORD - BUF
1 stop4h 33mDelta
Tue 1/72:25 pmBUF - ORD
1 stop5h 16mDelta
Deal found 12/16$312
This FlightHub deal was found by Cheapflights users on 12/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/256:50 amMDW - BUF
1 stop8h 50mFrontier
Sun 1/510:25 pmBUF - MDW
1 stop15h 04mFrontier
Deal found 12/16$313
This American Airlines deal was found by Cheapflights users on 12/16. 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.
Tue 12/315:40 pmORD - BUF
Nonstop1h 41mAmerican Airlines
Sun 1/55:27 pmBUF - ORD
1 stop5h 38mAmerican Airlines
Deal found 12/16$356
This United Airlines deal was found by Cheapflights users on 12/16. 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.
Tue 12/242:02 pmORD - BUF
Nonstop1h 42mUnited Airlines
Tue 1/77:45 pmBUF - ORD
1 stop4h 30mUnited Airlines
Deal found 12/16$363
This JetBlue deal was found by Cheapflights users on 12/16. 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.
Tue 12/248:42 amORD - BUF
1 stop7h 41mJetBlue
Tue 1/79:48 amBUF - ORD
1 stop9h 11mJetBlue
Deal found 12/16$366
This Southwest deal was found by Cheapflights users on 12/16. 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 12/3111:25 amORD - BUF
2 stops8h 05mSouthwest
Sun 1/52:20 pmBUF - ORD
1 stop8h 10mSouthwest
Deal found 12/16$371
This CheapOair deal was found by Cheapflights users on 12/17. 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 12/196:30 amORD - BUF
1 stop14h 05mFrontier
Sat 12/217:15 amBUF - ORD
1 stop7h 49mFrontier
Deal found 12/17$378
This Southwest deal was found by Cheapflights users on 12/16. 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 12/268:30 pmMDW - BUF
Nonstop1h 25mSouthwest
Sat 1/49:00 pmBUF - MDW
Nonstop1h 45mSouthwest
Deal found 12/16$494
This FlightHub deal was found by Cheapflights users on 12/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/183:53 pmSTL - BUF
1 stop16h 39mFrontier
Fri 12/208:32 pmBUF - STL
1 stop27h 56mFrontier
Deal found 12/17$528
This American Airlines deal was found by Cheapflights users on 12/16. 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.
Fri 12/274:45 pmBMI - BUF
1 stop4h 19mAmerican Airlines
Sun 12/297:00 amBUF - BMI
1 stop4h 55mAmerican Airlines
Deal found 12/16$658
This United Airlines deal was found by Cheapflights users on 12/17. 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 12/181:10 pmSTL - BUF
2 stops9h 04mUnited Airlines
Fri 12/205:25 pmBUF - STL
1 stop5h 20mUnited Airlines
Deal found 12/17$701

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 2,558,603 searches. Data last updated December 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Thu 1/9

10:35 am-8:14 am

1 stop20h 39m

Buffalo

Mon 1/13

12:08 pm-10:23 pm

1 stop11h 15m

$109

St. LouisBuffalo

STL - BUF

STLBUF

Lambert-St Louis

Sun 1/12

5:05 pm-9:40 am

1 stop15h 35m

Buffalo

Sat 1/18

6:53 pm-7:22 am

1 stop13h 29m

$128

ChicagoBuffalo

MDW - BUF

MDWBUF

Chicago Midway

Fri 1/10

3:37 pm-9:52 am

1 stop17h 15m

Buffalo

Sun 1/12

8:17 pm-2:58 pm

1 stop19h 41m

$138

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Thu 2/20

5:40 pm-11:34 pm

1 stop4h 54m

Buffalo

Sat 2/22

11:32 am-4:45 pm

1 stop6h 13m

$186

PeoriaBuffalo

PIA - BUF

PIABUF

Greater Peoria

Thu 1/9

4:25 pm-12:14 am

1 stop6h 49m

Buffalo

Wed 1/15

3:05 pm-7:58 pm

1 stop5h 53m

$248

MolineBuffalo

MLI - BUF

MLIBUF

Moline Quad-City

Thu 1/16

5:05 pm-11:58 pm

1 stop5h 53m

Buffalo

Wed 1/22

12:09 pm-4:25 pm

1 stop5h 16m

$248

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Mon 2/10

6:30 pm-9:10 pm

Nonstop1h 40m

Buffalo

Tue 2/11

7:00 am-8:03 am

Nonstop2h 03m

$252

MolineBuffalo

MLI - BUF

MLIBUF

Moline Quad-City

Thu 1/16

12:55 pm-10:49 pm

2 stops8h 54m

Buffalo

Wed 1/22

11:52 am-9:58 pm

2 stops11h 06m

$258

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Mon 2/10

6:13 am-3:49 pm

1 stop8h 36m

Buffalo

Tue 2/11

3:05 pm-4:05 pm

Nonstop2h 00m

$260

ChicagoBuffalo

MDW - BUF

MDWBUF

Chicago Midway

Mon 2/10

7:05 pm-9:35 pm

Nonstop1h 30m

Buffalo

Tue 2/11

1:35 pm-9:25 pm

1 stop8h 50m

$262

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 31 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 December 18, 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.

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 December 18, 2024.
To help decide which airline to fly from Illinois to Buffalo, see what other customers have to say about Frontier, American Airlines and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,848 reviews

Comfort

8.1

Overall

8.1

Entertainment

7.7

Boarding

8.2

Crew

8.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,848 reviews
Southwest
8.1
Very good
4,848 reviews

Comfort

8.1

Overall

8.1

Entertainment

7.7

Boarding

8.2

Crew

8.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,604 reviews
Southwest
8.1
Very good
4,848 reviews

Comfort

8.1

Overall

8.1

Entertainment

7.7

Boarding

8.2

Crew

8.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

JetBlue
7.4
Good
3,279 reviews
Southwest
8.1
Very good
4,848 reviews

Comfort

8.1

Overall

8.1

Entertainment

7.7

Boarding

8.2

Crew

8.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
9,059 reviews
Southwest
8.1
Very good
4,848 reviews

Comfort

8.1

Overall

8.1

Entertainment

7.7

Boarding

8.2

Crew

8.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,848 reviews

Comfort

8.1

Overall

8.1

Entertainment

7.7

Boarding

8.2

Crew

8.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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 $54 on Frontier. Other airlines that offer cheap prices include JetBlue from $93 and United Airlines 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: GoJet (90%), Envoy Air (90%), Japan Airlines( 89%).

  • What are the cheapest flights from Illinois to Buffalo?

    While on average a flight from Illinois to Buffalo is generally $378, our data shows the cheapest flight currently is $133. When looking at the most popular route, (Chicago O'Hare Intl - Buffalo), you can expect to pay $186 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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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 2,558,603 searches. Data last updated December 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$101Average$174FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$151Average$375FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$198Average$384FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$225Average$355FlexibilityNo cancel feeOn-time63%
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