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Cheap flights from Buffalo (BUF) to Illinois from $64

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 6/12. 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 7 — Jun 141
From?
To?
Fri 6/7
Fri 6/14
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.

What is the cheapest time of day to fly from BUF to 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 2,807,690 searches. Data last updated June 2, 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
Tue 9/311:45 amBUF - ORD
1 stop14h 14mFrontier
Tue 9/107:00 amORD - BUF
1 stop12h 02mFrontier
Deal found 6/1$126
Tue 9/39:26 amBUF - MDW
1 stop10h 47mFrontier
Sat 9/76:00 amMDW - BUF
1 stop10h 46mFrontier
Deal found 5/31$129
Wed 6/122:46 pmBUF - ORD
1 stop4h 59mFrontier
Wed 6/198:00 amORD - BUF
1 stop4h 45mFrontier
Deal found 6/1$138
Sat 6/299:07 pmBUF - MDW
1 stop13h 24mFrontier
Sat 7/611:51 amMDW - BUF
1 stop21h 49mFrontier
Deal found 6/1$160
Wed 6/126:52 pmBUF - MDW
1 stop17h 16mFrontier
Thu 6/1310:41 pmMDW - BUF
1 stop17h 44mFrontier
Deal found 6/1$161
Tue 9/311:45 amBUF - ORD
1 stop14h 14mFrontier
Thu 9/55:56 pmORD - BUF
1 stop25h 23mFrontier
Deal found 5/31$165
Mon 9/29:19 pmBUF - ORD
1 stop28h 40mFrontier
Fri 9/66:48 pmORD - BUF
1 stop21h 58mFrontier
Deal found 5/31$168
Tue 9/248:52 pmBUF - MDW
1 stop22h 56mFrontier
Sat 9/286:00 amMDW - BUF
1 stop10h 46mFrontier
Deal found 6/2$171
Thu 6/1310:26 amBUF - MDW
1 stop10h 30mFrontier
Mon 6/175:55 amMDW - BUF
1 stop9h 55mFrontier
Deal found 6/2$177

Cheap Sun Country Air flights from Buffalo to Illinois

Explore cheap flight options specifically provided by Sun Country Air 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 2,807,690 searches. Data last updated June 2, 2024.
Take a gander at the lowest prices we've found on Sun Country Air flights from Buffalo to Illinois. Check back soon if you're not seeing flights that suit your needs.
Thu 7/2512:00 pmBUF - ORD
1 stop8h 10mSun Country Air
Mon 7/297:00 amORD - BUF
1 stop5h 00mSun Country Air
Deal found 6/2$229
Thu 7/1812:00 pmBUF - ORD
1 stop8h 10mSun Country Air
Thu 7/258:05 pmORD - BUF
1 stop15h 55mSun Country Air
Deal found 6/1$242
Fri 7/52:00 pmBUF - STL
1 stop23h 35mSun Country Air
Mon 7/87:00 amSTL - BUF
1 stop5h 14mSun Country Air
Deal found 5/31$245
Thu 7/411:49 amBUF - ORD
1 stop6h 46mSun Country Air
Sun 7/78:05 pmORD - BUF
1 stop16h 09mSun Country Air
Deal found 6/2$252
Thu 6/2711:49 amBUF - ORD
1 stop8h 17mSun Country Air
Sun 6/3010:15 pmORD - BUF
1 stop11h 40mSun Country Air
Deal found 5/31$254
Mon 7/152:06 pmBUF - ORD
1 stop6h 04mSun Country Air
Sun 7/217:00 amORD - BUF
1 stop6h 08mSun Country Air
Deal found 6/2$279

Cheap Buffalo to Illinois flights in June & July 2024

Find cheap flight options from Buffalo to Illinois specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,807,690 searches. Prices were last updated on June 2, 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 6/122:46 pmBUF - ORD
1 stop4h 59mFrontier
Wed 6/198:00 amORD - BUF
1 stop4h 45mFrontier
Deal found 6/1$138
Sat 6/299:07 pmBUF - MDW
1 stop13h 24mFrontier
Sat 7/611:51 amMDW - BUF
1 stop21h 49mFrontier
Deal found 6/1$160
Wed 6/126:52 pmBUF - MDW
1 stop17h 16mFrontier
Thu 6/1310:41 pmMDW - BUF
1 stop17h 44mFrontier
Deal found 6/1$161
Thu 6/1310:26 amBUF - MDW
1 stop10h 30mFrontier
Mon 6/175:55 amMDW - BUF
1 stop9h 55mFrontier
Deal found 6/2$177
Mon 6/105:52 pmBUF - STL
1 stop21h 55mFrontier
Fri 6/147:44 pmSTL - BUF
1 stop23h 33mFrontier
Deal found 6/1$179
Tue 6/115:01 pmBUF - STL
1 stop15h 24mFrontier
Thu 6/133:32 pmSTL - BUF
1 stop24h 53mFrontier
Deal found 6/2$182
Sat 6/810:54 pmBUF - STL
1 stop16h 43mFrontier
Mon 6/1010:36 pmSTL - BUF
1 stop9h 00mFrontier
Deal found 6/1$187
Sat 6/159:07 pmBUF - MDW
1 stop13h 24mFrontier
Sat 6/2211:51 amMDW - BUF
1 stop7h 26mFrontier
Deal found 6/2$188
Thu 6/610:26 amBUF - MDW
1 stop10h 30mFrontier
Thu 6/1310:41 pmMDW - BUF
1 stop17h 44mFrontier
Deal found 6/1$195

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 2,807,690 searches. Data last updated June 2, 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.
Tue 9/311:45 amBUF - ORD
1 stop14h 14mFrontier
Tue 9/107:00 amORD - BUF
1 stop12h 02mFrontier
Deal found 6/1$126
Tue 9/39:26 amBUF - MDW
1 stop10h 47mFrontier
Sat 9/76:00 amMDW - BUF
1 stop10h 46mFrontier
Deal found 5/31$129
Wed 6/122:46 pmBUF - ORD
1 stop4h 59mFrontier
Wed 6/198:00 amORD - BUF
1 stop4h 45mFrontier
Deal found 6/1$138
Sat 6/299:07 pmBUF - MDW
1 stop13h 24mFrontier
Sat 7/611:51 amMDW - BUF
1 stop21h 49mFrontier
Deal found 6/1$160
Wed 6/126:52 pmBUF - MDW
1 stop17h 16mFrontier
Thu 6/1310:41 pmMDW - BUF
1 stop17h 44mFrontier
Deal found 6/1$161
Tue 9/311:45 amBUF - ORD
1 stop14h 14mFrontier
Thu 9/55:56 pmORD - BUF
1 stop25h 23mFrontier
Deal found 5/31$165
Mon 9/29:19 pmBUF - ORD
1 stop28h 40mFrontier
Fri 9/66:48 pmORD - BUF
1 stop21h 58mFrontier
Deal found 5/31$168
Tue 9/248:52 pmBUF - MDW
1 stop22h 56mFrontier
Sat 9/286:00 amMDW - BUF
1 stop10h 46mFrontier
Deal found 6/2$171
Thu 6/1310:26 amBUF - MDW
1 stop10h 30mFrontier
Mon 6/175:55 amMDW - BUF
1 stop9h 55mFrontier
Deal found 6/2$177

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 2,807,690 searches. Data last updated June 2, 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 6/277:00 amBUF - ORD
Nonstop1h 52mUnited Airlines
Fri 6/289:15 pmORD - BUF
Nonstop1h 41mUnited Airlines
Deal found 6/2$205
Tue 9/36:30 pmBUF - ORD
Nonstop1h 50mAmerican Airlines
Sat 9/78:05 amORD - BUF
Nonstop1h 29mAmerican Airlines
Deal found 5/31$249
Tue 10/2211:55 amBUF - ORD
Nonstop1h 50mAmerican Airlines
Tue 10/296:20 pmORD - BUF
Nonstop1h 46mAmerican Airlines
Deal found 6/1$253
Thu 8/18:00 amBUF - ORD
Nonstop1h 52mAmerican Airlines
Wed 8/73:09 pmORD - BUF
Nonstop1h 31mAmerican Airlines
Deal found 6/1$259
Thu 6/207:00 amBUF - ORD
Nonstop1h 52mUnited Airlines
Sun 6/239:20 pmORD - BUF
Nonstop1h 39mUnited Airlines
Deal found 6/2$260
Sat 6/296:17 pmBUF - ORD
Nonstop1h 49mAmerican Airlines
Sat 7/68:25 amORD - BUF
Nonstop1h 49mAmerican Airlines
Deal found 6/1$267
Fri 8/28:00 amBUF - ORD
Nonstop1h 52mAmerican Airlines
Thu 8/87:19 pmORD - BUF
Nonstop1h 42mAmerican Airlines
Deal found 6/2$269
Fri 8/28:00 amBUF - ORD
Nonstop1h 52mAmerican Airlines
Mon 8/51:43 pmORD - BUF
Nonstop1h 31mAmerican Airlines
Deal found 6/1$270
Wed 9/2511:24 amBUF - ORD
Nonstop1h 49mAmerican Airlines
Sun 9/297:10 pmORD - BUF
Nonstop1h 50mAmerican Airlines
Deal found 6/2$279

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 2,807,690 searches. Data last updated June 2, 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 6/122:46 pmBUF - ORD
1 stop4h 59mFrontier
Wed 6/198:00 amORD - BUF
1 stop4h 45mFrontier
Deal found 6/1$138
Wed 6/126:52 pmBUF - MDW
1 stop17h 16mFrontier
Thu 6/1310:41 pmMDW - BUF
1 stop17h 44mFrontier
Deal found 6/1$161
Mon 6/105:52 pmBUF - STL
1 stop21h 55mFrontier
Fri 6/147:44 pmSTL - BUF
1 stop23h 33mFrontier
Deal found 6/1$179
Tue 6/115:01 pmBUF - STL
1 stop15h 24mFrontier
Thu 6/133:32 pmSTL - BUF
1 stop24h 53mFrontier
Deal found 6/2$182
Sat 6/810:54 pmBUF - STL
1 stop16h 43mFrontier
Mon 6/1010:36 pmSTL - BUF
1 stop9h 00mFrontier
Deal found 6/1$187
Mon 6/105:52 pmBUF - STL
1 stop21h 55mFrontier
Fri 6/147:44 pmSTL - BUF
1 stop23h 33mFrontier
Deal found 6/2$199
Mon 6/105:52 pmBUF - STL
1 stop21h 55mMultiple Airlines
Sun 6/166:30 amSTL - BUF
1 stop4h 34mMultiple Airlines
Deal found 6/1$209
Sun 6/97:54 pmBUF - MDW
1 stop16h 16mFrontier
Sat 6/157:00 amMDW - BUF
1 stop10h 37mFrontier
Deal found 6/1$211
Fri 6/76:15 pmBUF - ORD
1 stop27h 51mFrontier
Wed 6/128:00 amORD - BUF
1 stop4h 45mFrontier
Deal found 5/31$216

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 2,807,690 searches. Data last updated June 2, 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 6/122:46 pmBUF - ORD
1 stop4h 59mFrontier
Deal found 6/2$64
Tue 9/311:45 amBUF - ORD
1 stop14h 14mFrontier
Deal found 6/1$68
Tue 9/39:26 amBUF - MDW
1 stop10h 47mFrontier
Deal found 6/1$72
Wed 6/192:46 pmBUF - ORD
1 stop5h 14mFrontier
Deal found 6/1$84
Sat 6/299:07 pmBUF - MDW
1 stop13h 24mFrontier
Deal found 6/1$86
Sat 6/2210:54 pmBUF - ORD
1 stop26h 46mFrontier
Deal found 6/1$90
Sat 7/1312:36 pmBUF - MDW
1 stop22h 09mFrontier
Deal found 6/1$91
Sat 6/229:07 pmBUF - MDW
1 stop13h 24mFrontier
Deal found 6/1$94
Thu 6/2711:49 amBUF - ORD
1 stop8h 17mSun Country Air
Deal found 6/2$98

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 2,807,690 searches. Data last updated June 2, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$126 - $241

Route

Depart

Return

Price

BuffaloChicago O'Hare Intl

BUF - ORD

BUFORD

Buffalo

Tue 9/3

1 stop14h 14m

Chicago O'Hare Intl

Tue 9/10

1 stop12h 02m

$126

BuffaloChicago Midway

BUF - MDW

BUFMDW

Buffalo

Tue 9/3

1 stop10h 47m

Chicago Midway

Sat 9/7

1 stop10h 46m

$129

BuffaloChicago O'Hare Intl

BUF - ORD

BUFORD

Buffalo

Wed 6/12

1 stop4h 59m

Chicago O'Hare Intl

Wed 6/19

1 stop4h 45m

$138

BuffaloChicago O'Hare Intl

BUF - ORD

BUFORD

Buffalo

Mon 7/1

1 stop5h 14m

Chicago O'Hare Intl

Mon 7/8

1 stop4h 44m

$198

BuffaloChicago O'Hare Intl

BUF - ORD

BUFORD

Buffalo

Thu 6/27

Nonstop1h 52m

Chicago O'Hare Intl

Fri 6/28

Nonstop1h 41m

$205

BuffaloChicago O'Hare Intl

BUF - ORD

BUFORD

Buffalo

Sun 9/1

1 stop7h 13m

Chicago O'Hare Intl

Thu 9/5

1 stop5h 00m

$226

BuffaloChicago O'Hare Intl

BUF - ORD

BUFORD

Buffalo

Thu 7/25

1 stop8h 10m

Chicago O'Hare Intl

Mon 7/29

1 stop5h 00m

$229

BuffaloChicago O'Hare Intl

BUF - ORD

BUFORD

Buffalo

Sat 6/29

Nonstop1h 49m

Chicago O'Hare Intl

Tue 7/2

1 stop5h 34m

$237

BuffaloLambert-St Louis

BUF - STL

BUFSTL

Buffalo

Tue 7/2

1 stop5h 06m

Lambert-St Louis

Tue 7/9

1 stop5h 09m

$241

Flights are sorted by cheapest first

Deals found on 6/1

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 June 2, 2024.
Get a feel of what it's like to fly with Frontier, Sun Country Air 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.
Alaska Airlines
8.1
Very good
9,197 reviews
Check prices

Crew

8.6

Food

7.3

Entertainment

7.3

Boarding

8.2

Comfort

7.9

Overall

8.1

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Alaska Airlines
8.1
Very good
9,197 reviews
Alaska Airlines
8.1
Very good
9,197 reviews
Check prices

Crew

8.6

Food

7.3

Entertainment

7.3

Boarding

8.2

Comfort

7.9

Overall

8.1

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Delta
8.0
Very good
10,402 reviews
Alaska Airlines
8.1
Very good
9,197 reviews
Check prices

Crew

8.6

Food

7.3

Entertainment

7.3

Boarding

8.2

Comfort

7.9

Overall

8.1

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

JetBlue
7.6
Good
4,336 reviews
Alaska Airlines
8.1
Very good
9,197 reviews
Check prices

Crew

8.6

Food

7.3

Entertainment

7.3

Boarding

8.2

Comfort

7.9

Overall

8.1

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

United Airlines
7.4
Good
10,755 reviews
Alaska Airlines
8.1
Very good
9,197 reviews
Check prices

Crew

8.6

Food

7.3

Entertainment

7.3

Boarding

8.2

Comfort

7.9

Overall

8.1

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

American Airlines
7.3
Good
14,260 reviews
Alaska Airlines
8.1
Very good
9,197 reviews
Check prices

Crew

8.6

Food

7.3

Entertainment

7.3

Boarding

8.2

Comfort

7.9

Overall

8.1

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

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 $126, but on average you can expect to pay $174.

  • 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 $279.

  • 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, Monday, Tuesday, Friday.

  • 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) - 29% of flight departures
    Evening (6pm - Midnight) - 14% of flight departures

  • How long is the flight from Buffalo to Illinois?

    For as low as $126, 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 $64. Users have also found prices from $98 and $99 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 $124. On average you can expect to pay $817. The most popular route, (Buffalo - Chicago O'Hare Intl), can usually be booked for $171.

  • 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 6/2.

  • 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.

  • What is the cheapest month 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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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 2,807,690 searches. Data last updated June 2, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$95Average$184FlexibilityNo cancel feeOn-time62%
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United AirlinesCheapest$142Average$397FlexibilityNo cancel feeOn-time69%
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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 June 2, 2024.
1%of flight departuresEarly morningMidnight to 6 am
67%of flight departuresMorning6 am to noon
31%of flight departuresAfternoonNoon to 6 pm
1%of flight departuresEvening6 pm to midnight
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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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