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Cheap flights from Buffalo (BUF) to Illinois from $54

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 6/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
BUF — ORD
Jun 2 — Jun 91
From?
To?
Sun 6/2
Sun 6/9
1 adult, Economy
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How far in advance should I book a flight from Buffalo to Illinois?

To save up to 41% on this flight, we recommend booking at least 53 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Buffalo to Illinois from $253 1-2 weeks out and tickets from $253 for flights departing within the next 72 hours.

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

Flights from Buffalo to Illinois lean towards being more expensive in February. Prices are generally better when you fly from Buffalo to Illinois in September, with the cheapest ticket starting at $94.

When is the cheapest time to fly from Buffalo to Illinois (BUF - IL)?

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

Cheap Frontier flights from Buffalo to Illinois

Explore cheap flight options specifically provided by Frontier for the route between Buffalo and Illinois. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,696,634 searches. Data last updated May 28, 2024.
Check out some of the cheapest Frontier flights we've come across from Buffalo to Illinois. Deals update often to give you more flight options matching your criteria
Wed 6/52:46 pmBUF - ORD
1 stop4h 59mFrontier
Wed 6/128:00 amORD - BUF
1 stop4h 45mFrontier
Deal found 5/28$102
Sat 6/810:54 pmBUF - ORD
1 stop26h 46mFrontier
Tue 6/118:00 amORD - BUF
1 stop10h 53mFrontier
Deal found 5/27$110
Wed 6/56:52 pmBUF - MDW
1 stop17h 16mFrontier
Wed 6/125:55 amMDW - BUF
1 stop10h 57mFrontier
Deal found 5/28$124
Tue 9/39:19 pmBUF - ORD
1 stop28h 40mFrontier
Tue 9/107:00 amORD - BUF
1 stop12h 02mFrontier
Deal found 5/28$126
Wed 7/242:47 pmBUF - ORD
1 stop4h 56mFrontier
Wed 7/318:05 amORD - BUF
1 stop4h 42mFrontier
Deal found 5/28$158
Mon 8/52:42 pmBUF - ORD
1 stop4h 55mFrontier
Wed 8/148:00 amORD - BUF
1 stop4h 45mFrontier
Deal found 5/28$160
Tue 6/49:50 pmBUF - MDW
1 stop15h 55mFrontier
Mon 6/105:14 pmMDW - BUF
1 stop23h 39mFrontier
Deal found 5/28$164
Fri 8/22:46 pmBUF - ORD
1 stop4h 57mFrontier
Wed 8/148:00 amORD - BUF
1 stop4h 45mFrontier
Deal found 5/28$170
Tue 8/279:26 amBUF - MDW
1 stop10h 47mFrontier
Sat 8/316:00 amMDW - BUF
1 stop10h 46mFrontier
Deal found 5/27$171

Cheap Delta flights from Buffalo to Illinois

Explore cheap flight options specifically provided by Delta for the route between Buffalo and Illinois. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,696,634 searches. Data last updated May 28, 2024.
Take a gander at the lowest prices we've found on Delta flights from Buffalo to Illinois. Check back soon if you're not seeing flights that suit your needs.
Tue 8/62:40 pmBUF - ORD
1 stop9h 06mDelta
Tue 8/1310:15 amORD - BUF
1 stop11h 46mDelta
Deal found 5/28$255
Tue 8/275:29 amBUF - ORD
1 stop12h 47mDelta
Sun 9/15:30 pmORD - BUF
1 stop5h 08mDelta
Deal found 5/28$263
Sat 8/36:15 amBUF - ORD
1 stop3h 47mDelta
Wed 8/147:30 pmORD - BUF
1 stop3h 50mDelta
Deal found 5/28$269
Tue 8/203:59 pmBUF - MDW
1 stop6h 47mDelta
Tue 8/276:05 pmMDW - BUF
1 stop5h 15mDelta
Deal found 5/28$270
Tue 8/62:40 pmBUF - ORD
1 stop9h 06mDelta
Thu 8/157:20 pmORD - BUF
1 stop4h 00mDelta
Deal found 5/28$271
Fri 6/76:15 amBUF - MDW
1 stop3h 33mDelta
Sun 6/95:45 pmMDW - BUF
1 stop5h 18mDelta
Deal found 5/28$566
Fri 5/316:20 amBUF - MDW
1 stop3h 46mDelta
Sun 6/25:47 pmMDW - BUF
1 stop4h 12mDelta
Deal found 5/27$628

Cheap Buffalo to Illinois flights in May & June 2024

Find cheap flight options from Buffalo to Illinois specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,696,634 searches. Prices were last updated on May 28, 2024.
Listed are some of the best fares we've found on flights departing from Buffalo to Illinois in 2024. Check back soon for alternative fares.
Wed 6/56:52 pmBUF - MDW
1 stop17h 16mFrontier
Wed 6/125:55 amMDW - BUF
1 stop10h 57mFrontier
Deal found 5/28$124
Tue 6/49:50 pmBUF - MDW
1 stop15h 55mFrontier
Mon 6/105:14 pmMDW - BUF
1 stop23h 39mFrontier
Deal found 5/28$164
Wed 6/56:52 pmBUF - MDW
1 stop27h 53mFrontier
Fri 6/75:55 amMDW - BUF
1 stop10h 30mFrontier
Deal found 5/28$172
Sat 6/1510:54 pmBUF - ORD
1 stop26h 46mFrontier
Wed 6/198:00 amORD - BUF
1 stop4h 45mFrontier
Deal found 5/27$187
Thu 6/2011:41 amBUF - ORD
1 stop8h 29mMultiple Airlines
Mon 6/245:58 pmORD - BUF
1 stop21h 00mMultiple Airlines
Deal found 5/28$203
Thu 6/207:00 amBUF - ORD
Nonstop1h 52mUnited Airlines
Mon 6/249:20 pmORD - BUF
Nonstop1h 39mUnited Airlines
Deal found 5/28$205
Sat 6/87:29 pmBUF - MDW
1 stop11h 31mFrontier
Tue 6/119:37 amMDW - BUF
1 stop7h 16mFrontier
Deal found 5/27$207
Thu 6/1310:26 amBUF - MDW
1 stop10h 30mFrontier
Mon 6/175:55 amMDW - BUF
1 stop9h 55mFrontier
Deal found 5/27$210
Sat 6/17:02 pmBUF - STL
1 stop28h 30mFrontier
Tue 6/410:44 pmSTL - BUF
1 stop18h 08mFrontier
Deal found 5/27$214

Buffalo to Illinois 2024 flight deals

Discover exclusive flight deals for travel between Buffalo and Illinois in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,696,634 searches. Data last updated May 28, 2024.
Listed are some of the best fares we've found on flights departing from Buffalo to Illinois in 2024. Check back soon for alternative fares.
Wed 6/56:52 pmBUF - MDW
1 stop17h 16mFrontier
Wed 6/125:55 amMDW - BUF
1 stop10h 57mFrontier
Deal found 5/28$124
Tue 6/49:50 pmBUF - MDW
1 stop15h 55mFrontier
Mon 6/105:14 pmMDW - BUF
1 stop23h 39mFrontier
Deal found 5/28$164
Tue 8/279:26 amBUF - MDW
1 stop10h 47mFrontier
Sat 8/316:00 amMDW - BUF
1 stop10h 46mFrontier
Deal found 5/27$171
Wed 6/56:52 pmBUF - MDW
1 stop27h 53mFrontier
Fri 6/75:55 amMDW - BUF
1 stop10h 30mFrontier
Deal found 5/28$172
Thu 8/83:13 pmBUF - MDW
1 stop7h 47mFrontier
Wed 8/146:00 amMDW - BUF
1 stop10h 46mFrontier
Deal found 5/28$176
Sat 6/1510:54 pmBUF - ORD
1 stop26h 46mFrontier
Wed 6/198:00 amORD - BUF
1 stop4h 45mFrontier
Deal found 5/27$187
Mon 8/122:42 pmBUF - ORD
1 stop4h 55mFrontier
Wed 8/148:00 amORD - BUF
1 stop4h 45mFrontier
Deal found 5/28$189
Mon 8/126:48 pmBUF - MDW
1 stop18h 04mFrontier
Wed 8/147:27 amMDW - BUF
1 stop9h 30mFrontier
Deal found 5/28$192
Wed 7/242:47 pmBUF - ORD
1 stop4h 56mFrontier
Mon 7/298:00 amORD - BUF
1 stop4h 42mFrontier
Deal found 5/28$193

Non-stop flights to Illinois from Buffalo

Discover non-stop flight options from Buffalo to Illinois. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 2,696,634 searches. Data last updated May 28, 2024.
For a quicker trip, book one of these direct flights from Buffalo to Illinois. Users can also choose from other Buffalo to Illinois flights by using the search form above.
Thu 6/207:00 amBUF - ORD
Nonstop1h 52mUnited Airlines
Mon 6/249:20 pmORD - BUF
Nonstop1h 39mUnited Airlines
Deal found 5/28$205
Wed 6/194:36 pmBUF - ORD
Nonstop1h 49mAmerican Airlines
Sat 6/228:27 pmORD - BUF
Nonstop1h 36mAmerican Airlines
Deal found 5/28$229
Wed 8/287:00 amBUF - ORD
Nonstop1h 51mUnited Airlines
Sat 8/316:09 pmORD - BUF
Nonstop1h 41mUnited Airlines
Deal found 5/28$249
Sat 8/36:13 pmBUF - ORD
Nonstop1h 52mAmerican Airlines
Tue 8/137:25 pmORD - BUF
Nonstop1h 33mAmerican Airlines
Deal found 5/28$250
Wed 8/78:00 amBUF - ORD
Nonstop1h 49mAmerican Airlines
Thu 8/87:24 pmORD - BUF
Nonstop1h 33mAmerican Airlines
Deal found 5/28$259
Sat 6/156:17 pmBUF - ORD
Nonstop1h 49mAmerican Airlines
Wed 6/198:27 pmORD - BUF
Nonstop1h 36mAmerican Airlines
Deal found 5/27$260
Wed 7/315:08 pmBUF - ORD
Nonstop1h 52mAmerican Airlines
Mon 8/51:43 pmORD - BUF
Nonstop1h 31mAmerican Airlines
Deal found 5/28$261
Sat 11/98:18 amBUF - ORD
Nonstop2h 02mAmerican Airlines
Tue 11/126:20 pmORD - BUF
Nonstop1h 46mAmerican Airlines
Deal found 5/28$263
Sun 6/237:00 amBUF - ORD
Nonstop1h 52mUnited Airlines
Wed 6/269:20 pmORD - BUF
Nonstop1h 39mUnited Airlines
Deal found 5/28$265

Buffalo to Illinois flights leaving soon

Find last-minute flight options from Buffalo to Illinois for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,696,634 searches. Data last updated May 28, 2024.
Have a look at some of the last-minute flights available departing from Buffalo to Illinois. Users should be sure to double check the price, date, and time of their last-minute flight.
Wed 6/52:46 pmBUF - ORD
1 stop4h 59mFrontier
Wed 6/128:00 amORD - BUF
1 stop4h 45mFrontier
Deal found 5/28$102
Sat 6/810:54 pmBUF - ORD
1 stop26h 46mFrontier
Tue 6/118:00 amORD - BUF
1 stop10h 53mFrontier
Deal found 5/27$110
Wed 6/56:52 pmBUF - MDW
1 stop17h 16mFrontier
Wed 6/125:55 amMDW - BUF
1 stop10h 57mFrontier
Deal found 5/28$124
Wed 6/52:46 pmBUF - ORD
1 stop4h 59mFrontier
Fri 6/78:00 amORD - BUF
1 stop4h 45mFrontier
Deal found 5/28$160
Tue 6/49:50 pmBUF - MDW
1 stop15h 55mFrontier
Mon 6/105:14 pmMDW - BUF
1 stop23h 39mFrontier
Deal found 5/28$164
Wed 6/56:52 pmBUF - MDW
1 stop27h 53mFrontier
Fri 6/75:55 amMDW - BUF
1 stop10h 30mFrontier
Deal found 5/28$172
Fri 5/312:46 pmBUF - ORD
1 stop4h 59mFrontier
Wed 6/58:00 amORD - BUF
1 stop4h 45mFrontier
Deal found 5/27$176
Fri 5/312:46 pmBUF - ORD
1 stop4h 59mFrontier
Tue 6/41:30 pmORD - BUF
1 stop6h 30mFrontier
Deal found 5/27$178
Sat 6/19:11 pmBUF - ORD
1 stop28h 57mFrontier
Sat 6/82:10 pmORD - BUF
1 stop27h 42mFrontier
Deal found 5/28$189

One-way flights to Illinois from Buffalo

Search for one-way flight options from Buffalo to Illinois. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,696,634 searches. Data last updated May 28, 2024.
Some of the best available deals we've found on one-way flights from Buffalo to Illinois. Users needing a return flight from Buffalo to Illinois should utilize the search form above.
Wed 6/52:46 pmBUF - ORD
1 stop4h 59mFrontier
Deal found 5/27$54
Wed 6/122:46 pmBUF - ORD
1 stop4h 59mFrontier
Deal found 5/28$57
Tue 6/49:50 pmBUF - MDW
1 stop15h 55mFrontier
Deal found 5/27$69
Wed 6/56:52 pmBUF - MDW
1 stop27h 53mFrontier
Deal found 5/27$70
Mon 7/152:06 pmBUF - ORD
1 stop6h 04mSun Country Air
Deal found 5/28$88
Sat 6/2210:54 pmBUF - ORD
1 stop26h 46mFrontier
Deal found 5/27$90
Sat 7/137:29 pmBUF - MDW
1 stop12h 16mFrontier
Deal found 5/28$94
Wed 6/197:00 amBUF - ORD
Nonstop1h 52mUnited Airlines
Deal found 5/27$103
Thu 9/128:52 pmBUF - MDW
1 stop22h 56mFrontier
Deal found 5/27$106

Find flights from Buffalo to Illinois within your budget

Customize your flight search to find flights from Buffalo to Illinois 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 2,696,634 searches. Data last updated May 28, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$110 - $255

Route

Depart

Return

Price

BuffaloChicago O'Hare Intl

BUF - ORD

BUFORD

Buffalo

Sat 6/8

1 stop26h 46m

Chicago O'Hare Intl

Tue 6/11

1 stop10h 53m

$110

BuffaloChicago O'Hare Intl

BUF - ORD

BUFORD

Buffalo

Tue 9/3

1 stop28h 40m

Chicago O'Hare Intl

Tue 9/10

1 stop12h 02m

$126

BuffaloChicago O'Hare Intl

BUF - ORD

BUFORD

Buffalo

Wed 7/24

1 stop4h 56m

Chicago O'Hare Intl

Wed 7/31

1 stop4h 42m

$158

BuffaloChicago O'Hare Intl

BUF - ORD

BUFORD

Buffalo

Thu 7/25

1 stop8h 10m

Chicago O'Hare Intl

Mon 7/29

1 stop4h 45m

$199

BuffaloChicago O'Hare Intl

BUF - ORD

BUFORD

Buffalo

Tue 7/23

1 stop5h 10m

Chicago O'Hare Intl

Tue 7/30

1 stop4h 35m

$202

BuffaloChicago O'Hare Intl

BUF - ORD

BUFORD

Buffalo

Thu 6/20

Nonstop1h 52m

Chicago O'Hare Intl

Mon 6/24

Nonstop1h 39m

$205

BuffaloChicago O'Hare Intl

BUF - ORD

BUFORD

Buffalo

Wed 6/19

Nonstop1h 49m

Chicago O'Hare Intl

Sat 6/22

Nonstop1h 36m

$229

BuffaloChicago O'Hare Intl

BUF - ORD

BUFORD

Buffalo

Fri 7/5

1 stop22h 33m

Chicago O'Hare Intl

Sun 7/7

1 stop16h 09m

$242

BuffaloChicago O'Hare Intl

BUF - ORD

BUFORD

Buffalo

Tue 8/6

1 stop9h 06m

Chicago O'Hare Intl

Tue 8/13

1 stop11h 46m

$255

Flights are sorted by cheapest first

Deals found on 5/27

No data available for this route at this time. Please check back soon.

Best time to book a flight from Buffalo to Illinois

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

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated May 28, 2024.
Get a feel of what it's like to fly with Frontier, Delta and American Airlines from Buffalo to Illinois by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,476 reviews
Check prices

Overall

8.0

Crew

8.6

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Food

7.4

Reviews

1 / 10

In the boarding area at La Guardia, there are charging stations for electronics but the electric outlets do not work on many of the stations.

Delta
8.0
Very good
10,476 reviews
Delta
8.0
Very good
10,476 reviews
Check prices

Overall

8.0

Crew

8.6

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Food

7.4

Reviews

1 / 10

In the boarding area at La Guardia, there are charging stations for electronics but the electric outlets do not work on many of the stations.

JetBlue
7.6
Good
4,370 reviews
Delta
8.0
Very good
10,476 reviews
Check prices

Overall

8.0

Crew

8.6

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Food

7.4

Reviews

1 / 10

In the boarding area at La Guardia, there are charging stations for electronics but the electric outlets do not work on many of the stations.

Aeromexico
7.6
Good
2,493 reviews
Delta
8.0
Very good
10,476 reviews
Check prices

Overall

8.0

Crew

8.6

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Food

7.4

Reviews

1 / 10

In the boarding area at La Guardia, there are charging stations for electronics but the electric outlets do not work on many of the stations.

WestJet
7.5
Good
2,871 reviews
Delta
8.0
Very good
10,476 reviews
Check prices

Overall

8.0

Crew

8.6

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Food

7.4

Reviews

1 / 10

In the boarding area at La Guardia, there are charging stations for electronics but the electric outlets do not work on many of the stations.

United Airlines
7.4
Good
10,799 reviews
Delta
8.0
Very good
10,476 reviews
Check prices

Overall

8.0

Crew

8.6

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Food

7.4

Reviews

1 / 10

In the boarding area at La Guardia, there are charging stations for electronics but the electric outlets do not work on many of the stations.

Related info for your journey

Find useful and relevant information for your journey from Buffalo to Illinois. 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 Illinois?

    Most people fly from Buffalo (BUF) if they book a flight from Buffalo to Illinois. Buffalo is conveniently located just 8.3 mi from Buffalo’s city center.

  • Can I find flights from Buffalo to Illinois for under $200 on Cheapflights?

    Yes, there are multiple flights from Buffalo to Illinois for under $200. The cheapest flight booked recently is on Frontier for just $110, but on average you can expect to pay $181.

  • Are there nonstop flights from Buffalo to Illinois for under $300 on Cheapflights?

    Cheapflights has at least 20 direct flights from Buffalo to Illinois under $300. A good price for a nonstop flight from Buffalo to Illinois is less than $266.

  • Are there last-minute flights available from Buffalo to Illinois for under $200?

    There are currently 20+ open flights from Buffalo to Illinois within the next 7 days for less than $200.

  • What days are nonstop flights available from Buffalo to Illinois?

    Nonstop flights can be found on the following days: Sunday, Thursday, Friday, Saturday.

  • How many flights depart from Buffalo to Illinois on average per day?

    7 flight departures from Buffalo to Illinois per day on average.
    Morning (6am - Noon) - 57% of flight departures
    Afternoon (Noon - 6pm) - 43% of flight departures

  • How long is the flight from Buffalo to Illinois?

    For as low as $110, Frontier can have you in Illinois from Buffalo in 1h 52m. The distance between Buffalo and Illinois is about 474 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $54. Users have also found prices from $88 and $103 on Sun Country Air and United Airlines, respectively.

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

    When deciding which route to take from Buffalo to Illinois consider Buffalo - Chicago O'Hare Intl, Buffalo - Chicago Midway or Buffalo - Lambert-St Louis as they are the most popular.

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

    Consider Republic Airways (94%), Gulf Air (93%) or British Airways (88%) when booking your flight. These represent the most reliable airlines when flying from Buffalo to Illinois.

  • What are the cheapest flights from Buffalo to Illinois?

    The cheapest flight price from Buffalo to Illinois is $118. On average you can expect to pay $1,107. The most popular route, (Buffalo - Chicago O'Hare Intl), can usually be booked for $179.

  • What does BUF to ORD mean?

    Buffalo Airport is BUF and Chicago O'Hare Intl Airport is ORD. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service. Ready for more IATA code knowledge? These are related airports for your current travel destination: Chicago Midway Airport (MDW), Moline Quad-City Airport (MLI), Greater Peoria Airport (PIA), Bloomington-Normal Airport (BMI), Springfield Capital Airport (SPI).

  • Can I find deals for flights from Buffalo to Illinois that include extra baggage allowance?

    The amount of baggage you can bring on your Buffalo to Illinois flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Buffalo to Illinois with specific airlines?

    Yes, Cheapflights allows you to browse and filter Buffalo to Illinois flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Buffalo to Illinois by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Buffalo to Illinois that allow pets onboard?

    Many airlines flying from Buffalo to Illinois offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Buffalo to Illinois?

    Yes, you can often find last-minute deals on Buffalo to Illinois flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Buffalo to Illinois flight deals updated?

    The Buffalo to Illinois flight deals you see on this page were last updated on 5/28.

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

    American Airlines, Delta and Frontier are the most popular airlines when flying from Buffalo to Illinois.

  • When is the best time to book a flight from Buffalo to Illinois?

    Currently, February is the cheapest month in which you can book a flight from Buffalo to Illinois (average of $244). Flying from Buffalo to Illinois in June is currently the most expensive (average of $326). 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

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Alternative routes for Buffalo to Illinois
See prices for flight routes from nearby airports that may be better suited for you.

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Top 4 airlines flying from Buffalo to Illinois

Discover the top 4 airlines that operate flights from Buffalo to Illinois. 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 2,696,634 searches. Data last updated May 28, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$95Average$184FlexibilityNo cancel feeOn-time62%
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United AirlinesCheapest$142Average$397FlexibilityNo cancel feeOn-time69%
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American AirlinesCheapest$169Average$342FlexibilityNo cancel feeOn-time71%
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DeltaCheapest$219Average$346FlexibilityNo cancel feeOn-timeN/A
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Search flights from Buffalo to Illinois by cabin class

Find flights from Buffalo to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Hourly flight availability from Buffalo to Illinois

Find hourly flight availability from Buffalo to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 28, 2024.
1%of flight departuresEarly morningMidnight to 6 am
69%of flight departuresMorning6 am to noon
29%of flight departuresAfternoonNoon to 6 pm
1%of flight departuresEvening6 pm to midnight
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Fly with Cheapflights

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How does Cheapflights help users find flights from Buffalo to Illinois?

Cheapflights helps you search for flights from Buffalo to Illinois via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Buffalo to Illinois.

Can Cheapflights find flights from Buffalo to Illinois with no change fees?

Need flexible booking options for your flight to Illinois from Buffalo? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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Of course! You can now track prices for flights from Buffalo to Illinois and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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