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 $93 on JetBlue. Other airlines that offer cheap prices include Frontier from $96 and Southwest from $125 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 cheapest flights from Illinois to Buffalo?

While on average a flight from Illinois to Buffalo is generally $270, our data shows the cheapest flight currently is $126. When looking at the most popular route, (Chicago O'Hare Intl - Buffalo), you can expect to pay $193 for that flight.

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: SkyWest Airlines (100%), Republic Airways (97%), Copa Airlines( 94%).

What are the most popular airlines that fly from Illinois to Buffalo?

Before booking your flight from Illinois to Buffalo check out the most popular airlines for this route: American Airlines, Frontier or United Airlines.

How far in advance should I book a flight from Illinois to Buffalo?

To save on the cost of your flight from Illinois to Buffalo, book at least 44 days before your planned departure. Booking around this time can save you about 182% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $255 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $609.

What is the cheapest month to fly from Illinois to Buffalo?

August is one of the best times of the year to fly to Buffalo from Illinois. Prices for August average $343 per person but you can even find prices for as low as $125. The most expensive prices can be found in the month of January. Opting for a August flight can save you 30% on your journey compared to booking in January

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.

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.

$93+ Flights from Illinois to Buffalo - Compare & Save Big

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Cheap flight deals from Illinois to Buffalo

Most accurate provider	FlightHub 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$208 (Booking.com)
One-way from	$93 (JetBlue)
Popular in	January
Cheapest in	August
Average price	$345
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.

Search Deals

Provider most trusted by Cheapflights users for Chicago (CHI)-Buffalo flights.

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From Illinois to Buffalo

Search Deals

One-way flight from Illinois to Buffalo

Search Deals

Highest demand for flights based on searches. 14% potential increase in price ($56 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

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Price to beat on a round-trip flight from Illinois to Buffalo.

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Price to beat on a 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 April 30, 2025.

Wed 5/145:45 pmSTL - BUF

1 stop14h 16mFrontier

Mon 5/199:51 amBUF - STL

1 stop15h 15mFrontier

Deal found 4/29

$208

Thu 5/228:04 amORD - BUF

1 stop5h 37mFrontier

Thu 5/293:54 pmBUF - ORD

1 stop9h 23mFrontier

Deal found 4/28

$218

Thu 5/229:12 pmMDW - BUF

1 stop9h 39mFrontier

Mon 5/268:50 amBUF - MDW

1 stop12h 27mFrontier

Deal found 4/28

$220

Tue 5/276:15 amORD - BUF

1 stop6h 38mJetBlue

Thu 5/2910:33 amBUF - ORD

1 stop5h 31mJetBlue

Deal found 4/28

$234

Fri 7/43:42 pmSTL - BUF

1 stop4h 39mDelta

Wed 7/97:40 pmBUF - STL

1 stop4h 40mDelta

Deal found 4/27

$244

Tue 5/277:10 amORD - BUF

Nonstop1h 46mUnited Airlines

Tue 6/37:00 amBUF - ORD

Nonstop1h 56mUnited Airlines

Deal found 4/29

$249

Sat 6/75:15 pmMLI - BUF

1 stop5h 41mDelta

Tue 6/105:10 pmBUF - MLI

1 stop6h 39mDelta

Deal found 4/28

$249

Sat 5/242:45 pmORD - BUF

Nonstop1h 39mAmerican Airlines

Sun 5/258:00 amBUF - ORD

Nonstop1h 54mAmerican Airlines

Deal found 4/29

$250

Mon 5/124:18 pmPIA - BUF

1 stop6h 56mAmerican Airlines

Mon 5/197:11 pmBUF - PIA

1 stop5h 45mAmerican Airlines

Deal found 4/28

$254

Wed 6/115:00 amSTL - BUF

2 stops8h 09mUnited Airlines

Sat 6/145:51 pmBUF - STL

1 stop4h 24mUnited Airlines

Deal found 4/29

$256

Thu 5/225:12 amSTL - BUF

1 stop7h 00mAmerican Airlines

Thu 5/2910:11 amBUF - STL

1 stop3h 56mAmerican Airlines

Deal found 4/29

$262

Wed 6/2510:26 amMDW - BUF

1 stop7h 15mDelta

Sat 6/286:30 amBUF - MDW

1 stop3h 11mDelta

Deal found 4/29

$269

Best flights from Illinois to Buffalo
Discover carefully curated flight deals from Illinois to Buffalo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 30, 2025.

Wed 5/145:45 pmSTL - BUF

1 stop14h 16mFrontier

Mon 5/199:51 amBUF - STL

1 stop15h 15mFrontier

Deal found 4/29

$208

Thu 8/2111:35 amORD - BUF

1 stop6h 55mJetBlue

Wed 8/276:00 amBUF - ORD

1 stop5h 47mJetBlue

Deal found 4/29

$219

Fri 7/43:42 pmSTL - BUF

1 stop4h 39mDelta

Wed 7/97:40 pmBUF - STL

1 stop4h 40mDelta

Deal found 4/27

$244

Thu 5/292:45 pmORD - BUF

Nonstop1h 39mAmerican Airlines

Fri 5/303:00 pmBUF - ORD

Nonstop1h 53mAmerican Airlines

Deal found 4/29

$249

Wed 6/115:00 amSTL - BUF

2 stops8h 09mUnited Airlines

Sat 6/145:51 pmBUF - STL

1 stop4h 24mUnited Airlines

Deal found 4/29

$256

Sat 5/242:05 pmMDW - BUF

Nonstop1h 25mSouthwest

Sun 5/257:25 amBUF - MDW

Nonstop1h 40mSouthwest

Deal found 4/28

$279

Wed 6/45:03 pmORD - BUF

1 stop14h 53mFrontier

Sun 6/89:37 pmBUF - ORD

1 stop27h 33mFrontier

Deal found 4/29

$218

Wed 6/411:50 amORD - BUF

2 stops21h 18mMultiple Airlines

Sun 6/811:41 amBUF - ORD

2 stops24h 14mMultiple Airlines

Deal found 4/29

$447

Thu 5/229:12 pmMDW - BUF

1 stop9h 39mFrontier

Mon 5/268:50 amBUF - MDW

1 stop12h 27mFrontier

Deal found 4/28

$220

Sat 6/75:15 pmMLI - BUF

1 stop5h 41mDelta

Tue 6/105:10 pmBUF - MLI

1 stop6h 39mDelta

Deal found 4/28

$249

Mon 5/124:18 pmPIA - BUF

1 stop6h 56mAmerican Airlines

Mon 5/197:11 pmBUF - PIA

1 stop5h 45mAmerican Airlines

Deal found 4/28

$254

Thu 5/225:12 amSTL - BUF

1 stop7h 00mAmerican Airlines

Thu 5/2910:11 amBUF - STL

1 stop3h 56mAmerican Airlines

Deal found 4/29

$262

Last-minute flights from Illinois to Buffalo
Discover last-minute flight deals from Illinois to Buffalo. Data last updated April 30, 2025 and is based on user searches.

Mon 5/56:55 amORD - BUF

1 stop11h 42mFrontier

Fri 5/99:51 amBUF - ORD

1 stop14h 41mFrontier

Deal found 4/28

$250

Mon 5/51:10 pmMDW - BUF

Nonstop1h 25mSouthwest

Fri 5/97:30 pmBUF - MDW

Nonstop1h 35mSouthwest

Deal found 4/28

$551

Mon 5/58:30 pmORD - BUF

Nonstop1h 52mAmerican Airlines

Fri 5/910:11 amBUF - ORD

Nonstop1h 54mAmerican Airlines

Deal found 4/28

$551

Tue 5/68:45 amORD - BUF

1 stop7h 55mJetBlue

Mon 5/1212:44 pmBUF - ORD

1 stop6h 52mJetBlue

Deal found 4/28

$338

Tue 5/610:35 amORD - BUF

Nonstop1h 45mUnited Airlines

Mon 5/1211:00 amBUF - ORD

Nonstop2h 04mUnited Airlines

Deal found 4/28

$442

Wed 5/71:50 pmORD - BUF

1 stop4h 05mSouthwest

Thu 5/85:45 amBUF - ORD

2 stops8h 00mSouthwest

Deal found 4/28

$524

Thu 5/85:45 pmSTL - BUF

1 stop14h 16mFrontier

Mon 5/129:51 amBUF - STL

1 stop15h 15mFrontier

Deal found 4/27

$227

Thu 5/86:55 amPIA - BUF

1 stop5h 25mUnited Airlines

Sun 5/116:45 amBUF - PIA

1 stop4h 27mUnited Airlines

Deal found 4/29

$379

Thu 5/87:45 amSTL - BUF

2 stops6h 50mSouthwest

Sun 5/116:25 amBUF - STL

1 stop5h 10mSouthwest

Deal found 4/27

$472

Thu 5/86:30 amSTL - BUF

2 stops6h 30mUnited Airlines

Mon 5/127:55 pmBUF - STL

3 stops20h 52mUnited Airlines

Deal found 4/27

$610

Mon 5/124:18 pmPIA - BUF

1 stop6h 56mAmerican Airlines

Mon 5/197:11 pmBUF - PIA

1 stop5h 45mAmerican Airlines

Deal found 4/28

$254

Wed 5/145:45 pmSTL - BUF

1 stop14h 16mFrontier

Mon 5/199:51 amBUF - STL

1 stop15h 15mFrontier

Deal found 4/29

$208

One-way flights from Illinois to Buffalo
Search for one-way flight options from Illinois to Buffalo. Find affordable one-way fares based on user searches. Data last updated April 30, 2025.

Wed 5/286:15 amORD - BUF

1 stop6h 38mJetBlue

Deal found 4/29

$93

Fri 5/169:00 amORD - BUF

1 stop9h 48mFrontier

Deal found 4/29

$96

Fri 5/161:19 pmMDW - BUF

1 stop20h 29mFrontier

Deal found 4/27

$98

Sat 5/175:45 pmSTL - BUF

1 stop14h 16mFrontier

Deal found 4/29

$100

Thu 5/296:50 pmMDW - BUF

Nonstop1h 25mSouthwest

Deal found 4/28

$125

Sat 9/69:09 pmORD - BUF

Nonstop1h 45mAmerican Airlines

Deal found 4/29

$125

Sat 6/216:40 amSTL - BUF

1 stop4h 29mDelta

Deal found 4/29

$126

Sat 6/218:05 amSTL - BUF

2 stops9h 51mUnited Airlines

Deal found 4/29

$131

Thu 6/268:38 pmORD - BUF

1 stop13h 40mSun Country Air

Deal found 4/29

$133

Wed 6/186:20 pmMDW - BUF

1 stop4h 10mDelta

Deal found 4/28

$135

Sat 6/285:03 pmORD - BUF

1 stop4h 20mDelta

Deal found 4/29

$135

Sat 5/3112:40 pmORD - BUF

2 stops9h 30mSouthwest

Deal found 4/29

$140

Cheapflights Fare Finder

Use the filters below to find and compare flights from Illinois to Buffalo that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisBuffalo

STL - BUF

STLBUF

Lambert-St Louis

Wed 5/14

5:45 pm-9:01 am

1 stop14h 16m

Buffalo

Mon 5/19

9:51 am-12:06 am

1 stop15h 15m

$208

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Thu 5/22

8:04 am-2:41 pm

1 stop5h 37m

Buffalo

Thu 5/29

3:54 pm-12:17 am

1 stop9h 23m

$218

ChicagoBuffalo

MDW - BUF

MDWBUF

Chicago Midway

Thu 5/22

6:20 am-2:41 pm

1 stop7h 21m

Buffalo

Thu 5/29

3:54 pm-9:56 pm

1 stop7h 02m

$220

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Tue 5/27

6:15 am-1:53 pm

1 stop6h 38m

Buffalo

Thu 5/29

10:33 am-3:04 pm

1 stop5h 31m

$234

St. LouisBuffalo

STL - BUF

STLBUF

Lambert-St Louis

Fri 7/4

3:42 pm-9:21 pm

1 stop4h 39m

Buffalo

Wed 7/9

7:40 pm-11:20 pm

1 stop4h 40m

$244

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Tue 5/27

7:10 am-9:56 am

Nonstop1h 46m

Buffalo

Tue 6/3

7:00 am-7:56 am

Nonstop1h 56m

$249

MolineBuffalo

MLI - BUF

MLIBUF

Moline Quad-City

Sat 6/7

5:15 pm-11:56 pm

1 stop5h 41m

Buffalo

Tue 6/10

5:10 pm-10:49 pm

1 stop6h 39m

$249

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Sat 5/24

2:45 pm-5:24 pm

Nonstop1h 39m

Buffalo

Sun 5/25

8:00 am-8:54 am

Nonstop1h 54m

$250

PeoriaBuffalo

PIA - BUF

PIABUF

Greater Peoria

Mon 5/12

4:18 pm-12:14 am

1 stop6h 56m

Buffalo

Mon 5/19

7:11 pm-11:56 pm

1 stop5h 45m

$254

St. LouisBuffalo

STL - BUF

STLBUF

Lambert-St Louis

Wed 6/11

5:00 am-2:09 pm

2 stops8h 09m

Buffalo

Sat 6/14

5:51 pm-9:15 pm

1 stop4h 24m

$256

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 39 results

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.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Buffalo

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 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 IL to BUF?

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

The most flights from USIL to BUF are scheduled on a Wednesday (34 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (12 on average).

Rainfall in Buffalo 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

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

To help decide which airline to fly from Illinois to Buffalo, see what other customers have to say about Southwest, Delta and United Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,295 reviews

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

4,295 reviews

Southwest

8.0

Very good

4,295 reviews

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

7,929 reviews

Southwest

8.0

Very good

4,295 reviews

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

8,696 reviews

Southwest

8.0

Very good

4,295 reviews

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

2,922 reviews

Southwest

8.0

Very good

4,295 reviews

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

4,295 reviews

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

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 $93 on JetBlue. Other airlines that offer cheap prices include Frontier from $96 and Southwest from $125 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: SkyWest Airlines (100%), Republic Airways (97%), Copa Airlines( 94%).
What are the cheapest flights from Illinois to Buffalo?
While on average a flight from Illinois to Buffalo is generally $270, our data shows the cheapest flight currently is $126. When looking at the most popular route, (Chicago O'Hare Intl - Buffalo), you can expect to pay $193 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 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

Williamsville

Amherst

West Seneca

Batavia

Orchard Park

Cheektowaga

Browse thousands of different options on Cheapflights for your next trip

Top 4 airlines flying from Illinois to Buffalo

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$101	Average$183	FlexibilityNo cancel fee	On-time62%
American Airlines	Cheapest$177	Average$324	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$198	Average$361	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$225	Average$355	FlexibilityNo cancel fee	On-time63%

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$93+ 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 5/28. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Illinois to Buffalo with Cheapflights

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Cheap flight deals from Illinois to Buffalo

Keep the following information in mind while searching for Illinois to Buffalo flight deals. Data was last updated April 30, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Illinois to Buffalo

Cheapest flights from Illinois to BuffaloExplore 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 April 30, 2025.

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 April 30, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Illinois to Buffalo that are best for you.

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.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Buffalo

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

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 April 30, 2025.

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 April 30, 2025.

Rainfall in Buffalo by month

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

Temperature in Buffalo by month

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

Reviews of airlines servicing Buffalo

To help decide which airline to fly from Illinois to Buffalo, see what other customers have to say about Southwest, Delta and United Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

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

What are the most popular routes from Illinois to Buffalo?

What are the most reliable airlines from Illinois to Buffalo?

What are the cheapest flights from Illinois to Buffalo?

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

How can I find direct flights from Illinois to Buffalo?

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

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

Traveling to a place near Illinois?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Illinois to Buffalo

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from Illinois to Buffalo

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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 April 30, 2025.