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Cheap flights from Buffalo (BUF) to Illinois from $68

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 5/8. 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
May 7 — May 141
From?
To?
Tue 5/7
Tue 5/14
1 adult, Economy
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How far in advance should I book a flight from Buffalo to Illinois?

To save up to 77% on this flight, we recommend booking at least 29 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 $335 1-2 weeks out and tickets from $425 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 April. Prices are generally better when you fly from Buffalo to Illinois in December, with the cheapest ticket starting at $163.

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 2,899,487 searches. Data last updated May 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
Wed 5/222:46 pmBUF - ORD
1 stop4h 59mFrontier
Wed 5/298:00 amORD - BUF
1 stop4h 46mFrontier
Deal found 5/1$119
Wed 5/89:43 pmBUF - ORD
1 stop28h 13mFrontier
Sat 5/118:25 amORD - BUF
1 stop22h 21mFrontier
Deal found 5/1$132
Sat 5/184:04 pmBUF - ORD
1 stop9h 54mFrontier
Tue 5/211:30 pmORD - BUF
1 stop6h 30mFrontier
Deal found 5/1$133
Wed 5/89:43 pmBUF - ORD
1 stop28h 13mFrontier
Fri 5/106:27 pmORD - BUF
1 stop22h 45mFrontier
Deal found 5/1$137
Wed 5/292:46 pmBUF - ORD
1 stop4h 59mFrontier
Wed 6/58:00 amORD - BUF
1 stop4h 45mFrontier
Deal found 5/1$144
Wed 8/289:19 pmBUF - STL
1 stop10h 43mFrontier
Tue 9/310:32 pmSTL - BUF
1 stop18h 14mFrontier
Deal found 4/30$148
Sat 5/184:04 pmBUF - ORD
1 stop9h 54mFrontier
Tue 5/211:30 pmORD - BUF
1 stop6h 30mFrontier
Deal found 5/1$150
Fri 5/173:01 pmBUF - ORD
1 stop4h 59mFrontier
Sun 5/195:56 pmORD - BUF
1 stop12h 51mFrontier
Deal found 5/1$156
Fri 5/173:01 pmBUF - ORD
1 stop4h 59mFrontier
Sun 5/195:56 pmORD - BUF
1 stop12h 51mFrontier
Deal found 5/1$157

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 2,899,487 searches. Data last updated May 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 6/1311:47 amBUF - ORD
1 stop6h 55mSun Country Air
Sun 6/166:25 amORD - BUF
1 stop4h 39mSun Country Air
Deal found 5/1$225
Sun 6/912:42 pmBUF - ORD
1 stop7h 48mSun Country Air
Wed 6/128:05 pmORD - BUF
1 stop13h 52mSun Country Air
Deal found 5/1$233
Thu 6/2011:41 amBUF - ORD
1 stop8h 29mSun Country Air
Sun 6/237:00 amORD - BUF
1 stop5h 44mSun Country Air
Deal found 4/30$235
Fri 7/262:00 pmBUF - ORD
1 stop22h 29mSun Country Air
Mon 7/297:00 amORD - BUF
1 stop5h 00mSun Country Air
Deal found 5/1$260
Mon 7/111:46 amBUF - ORD
1 stop8h 57mSun Country Air
Sun 7/78:05 pmORD - BUF
1 stop16h 09mSun Country Air
Deal found 5/1$312

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 2,899,487 searches. Prices were last updated on May 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 5/222:46 pmBUF - ORD
1 stop4h 59mFrontier
Wed 5/298:00 amORD - BUF
1 stop4h 46mFrontier
Deal found 5/1$119
Wed 5/89:43 pmBUF - ORD
1 stop28h 13mFrontier
Sat 5/118:25 amORD - BUF
1 stop22h 21mFrontier
Deal found 5/1$132
Sat 5/184:04 pmBUF - ORD
1 stop9h 54mFrontier
Tue 5/211:30 pmORD - BUF
1 stop6h 30mFrontier
Deal found 5/1$133
Wed 5/89:43 pmBUF - ORD
1 stop28h 13mFrontier
Fri 5/106:27 pmORD - BUF
1 stop22h 45mFrontier
Deal found 5/1$137
Wed 5/292:46 pmBUF - ORD
1 stop4h 59mFrontier
Wed 6/58:00 amORD - BUF
1 stop4h 45mFrontier
Deal found 5/1$144
Sat 5/184:04 pmBUF - ORD
1 stop9h 54mFrontier
Tue 5/211:30 pmORD - BUF
1 stop6h 30mFrontier
Deal found 5/1$150
Fri 5/173:01 pmBUF - ORD
1 stop4h 59mFrontier
Sun 5/195:56 pmORD - BUF
1 stop12h 51mFrontier
Deal found 5/1$156
Fri 5/173:01 pmBUF - ORD
1 stop4h 59mFrontier
Sun 5/195:56 pmORD - BUF
1 stop12h 51mFrontier
Deal found 5/1$157
Thu 5/165:08 pmBUF - ORD
1 stop9h 00mFrontier
Sun 5/195:56 pmORD - BUF
1 stop12h 51mFrontier
Deal found 5/1$168

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 2,899,487 searches. Data last updated May 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 5/222:46 pmBUF - ORD
1 stop4h 59mFrontier
Wed 5/298:00 amORD - BUF
1 stop4h 46mFrontier
Deal found 5/1$119
Wed 5/89:43 pmBUF - ORD
1 stop28h 13mFrontier
Sat 5/118:25 amORD - BUF
1 stop22h 21mFrontier
Deal found 5/1$132
Sat 5/184:04 pmBUF - ORD
1 stop9h 54mFrontier
Tue 5/211:30 pmORD - BUF
1 stop6h 30mFrontier
Deal found 5/1$133
Wed 5/89:43 pmBUF - ORD
1 stop28h 13mFrontier
Fri 5/106:27 pmORD - BUF
1 stop22h 45mFrontier
Deal found 5/1$137
Wed 5/292:46 pmBUF - ORD
1 stop4h 59mFrontier
Wed 6/58:00 amORD - BUF
1 stop4h 45mFrontier
Deal found 5/1$144
Wed 8/289:19 pmBUF - STL
1 stop10h 43mFrontier
Tue 9/310:32 pmSTL - BUF
1 stop18h 14mFrontier
Deal found 4/30$148
Sat 5/184:04 pmBUF - ORD
1 stop9h 54mFrontier
Tue 5/211:30 pmORD - BUF
1 stop6h 30mFrontier
Deal found 5/1$150
Fri 5/173:01 pmBUF - ORD
1 stop4h 59mFrontier
Sun 5/195:56 pmORD - BUF
1 stop12h 51mFrontier
Deal found 5/1$156
Fri 5/173:01 pmBUF - ORD
1 stop4h 59mFrontier
Sun 5/195:56 pmORD - BUF
1 stop12h 51mFrontier
Deal found 5/1$157

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 2,899,487 searches. Data last updated May 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.
Tue 8/66:30 pmBUF - ORD
Nonstop1h 50mAmerican Airlines
Wed 8/77:24 pmORD - BUF
Nonstop1h 33mAmerican Airlines
Deal found 5/1$249
Tue 10/17:00 pmBUF - MDW
Nonstop1h 35mSouthwest
Thu 10/311:55 amMDW - BUF
Nonstop1h 25mSouthwest
Deal found 5/2$260
Fri 5/3111:32 amBUF - ORD
Nonstop1h 52mAmerican Airlines
Wed 6/51:15 pmORD - BUF
Nonstop1h 31mAmerican Airlines
Deal found 5/1$262
Thu 8/158:06 amBUF - ORD
Nonstop1h 49mAmerican Airlines
Mon 8/197:24 pmORD - BUF
Nonstop1h 33mAmerican Airlines
Deal found 5/1$273
Thu 8/88:06 amBUF - ORD
Nonstop1h 49mAmerican Airlines
Mon 8/127:24 pmORD - BUF
Nonstop1h 33mAmerican Airlines
Deal found 5/1$275
Thu 8/15:08 pmBUF - ORD
Nonstop1h 52mAmerican Airlines
Wed 8/77:24 pmORD - BUF
Nonstop1h 33mAmerican Airlines
Deal found 5/1$279
Sun 6/308:15 amBUF - ORD
Nonstop1h 50mAmerican Airlines
Wed 7/38:27 pmORD - BUF
Nonstop1h 36mAmerican Airlines
Deal found 5/1$280
Mon 6/178:15 amBUF - ORD
Nonstop1h 50mAmerican Airlines
Wed 6/198:27 pmORD - BUF
Nonstop1h 36mAmerican Airlines
Deal found 5/1$282
Fri 5/314:55 pmBUF - ORD
Nonstop1h 52mAmerican Airlines
Fri 6/71:15 pmORD - BUF
Nonstop1h 31mAmerican Airlines
Deal found 5/1$289

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 2,899,487 searches. Data last updated May 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 5/89:43 pmBUF - ORD
1 stop28h 13mFrontier
Sat 5/118:25 amORD - BUF
1 stop22h 21mFrontier
Deal found 5/1$132
Wed 5/89:43 pmBUF - ORD
1 stop28h 13mFrontier
Fri 5/106:27 pmORD - BUF
1 stop22h 45mFrontier
Deal found 5/1$137
Fri 5/108:46 amBUF - ORD
1 stop15h 57mFrontier
Sun 5/125:51 pmORD - BUF
1 stop13h 04mFrontier
Deal found 5/2$168
Fri 5/108:46 amBUF - MDW
1 stop14h 45mFrontier
Sun 5/1210:27 pmMDW - BUF
1 stop18h 35mFrontier
Deal found 5/1$178
Thu 5/98:46 amBUF - ORD
1 stop17h 13mFrontier
Sun 5/125:51 pmORD - BUF
1 stop13h 04mFrontier
Deal found 5/2$178
Thu 5/97:48 pmBUF - MDW
1 stop14h 59mFrontier
Sat 5/118:17 pmMDW - BUF
1 stop10h 29mFrontier
Deal found 5/1$181
Thu 5/97:48 pmBUF - MDW
1 stop14h 59mFrontier
Sun 5/1210:27 pmMDW - BUF
1 stop18h 35mFrontier
Deal found 5/1$198
Wed 5/89:43 pmBUF - STL
1 stop13h 55mFrontier
Sun 5/127:16 pmSTL - BUF
1 stop11h 39mFrontier
Deal found 5/1$204
Tue 5/78:36 amBUF - ORD
1 stop17h 23mFrontier
Tue 5/146:27 pmORD - BUF
1 stop25h 26mFrontier
Deal found 5/1$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 2,899,487 searches. Data last updated May 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 5/89:43 pmBUF - ORD
1 stop28h 13mFrontier
Deal found 5/1$68
Fri 5/173:01 pmBUF - ORD
1 stop4h 59mFrontier
Deal found 5/1$78
Wed 5/159:43 pmBUF - MDW
1 stop14h 26mFrontier
Deal found 4/30$85
Wed 5/159:43 pmBUF - ORD
1 stop24h 40mFrontier
Deal found 4/30$85
Wed 8/286:46 pmBUF - ORD
1 stop26h 35mFrontier
Deal found 5/1$86
Thu 5/3011:30 amBUF - ORD
1 stop9h 33mSun Country Air
Deal found 4/30$88
Tue 6/48:40 pmBUF - ORD
1 stop29h 28mFrontier
Deal found 5/1$90
Sun 6/24:29 pmBUF - ORD
1 stop9h 39mFrontier
Deal found 5/1$91
Thu 7/411:49 amBUF - ORD
1 stop6h 46mSun Country Air
Deal found 5/1$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 2,899,487 searches. Data last updated May 2, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$119 - $330

Route

Depart

Return

Price

BuffaloChicago O'Hare Intl

BUF - ORD

BUFORD

Buffalo

Wed 5/22

1 stop4h 59m

Chicago O'Hare Intl

Wed 5/29

1 stop4h 46m

$119

BuffaloChicago O'Hare Intl

BUF - ORD

BUFORD

Buffalo

Sat 5/18

1 stop9h 54m

Chicago O'Hare Intl

Tue 5/21

1 stop6h 30m

$133

BuffaloChicago O'Hare Intl

BUF - ORD

BUFORD

Buffalo

Wed 5/29

1 stop4h 59m

Chicago O'Hare Intl

Wed 6/5

1 stop4h 45m

$144

BuffaloChicago O'Hare Intl

BUF - ORD

BUFORD

Buffalo

Thu 5/30

1 stop9h 33m

Chicago O'Hare Intl

Mon 6/3

1 stop4h 46m

$170

BuffaloChicago O'Hare Intl

BUF - ORD

BUFORD

Buffalo

Thu 6/13

1 stop6h 55m

Chicago O'Hare Intl

Sun 6/16

1 stop4h 39m

$225

BuffaloChicago O'Hare Intl

BUF - ORD

BUFORD

Buffalo

Tue 8/6

Nonstop1h 50m

Chicago O'Hare Intl

Wed 8/7

Nonstop1h 33m

$249

BuffaloChicago O'Hare Intl

BUF - ORD

BUFORD

Buffalo

Tue 10/1

1 stop6h 39m

Chicago O'Hare Intl

Thu 10/3

1 stop5h 25m

$276

BuffaloChicago O'Hare Intl

BUF - ORD

BUFORD

Buffalo

Wed 5/22

Nonstop1h 53m

Chicago O'Hare Intl

Thu 5/23

Nonstop1h 50m

$304

BuffaloChicago O'Hare Intl

BUF - ORD

BUFORD

Buffalo

Tue 5/28

1 stop5h 21m

Chicago O'Hare Intl

Thu 5/30

1 stop8h 52m

$330

Flights are sorted by cheapest first

Deals found on 5/1

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

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 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.
Delta
8.1
Very good
10,874 reviews
Check prices

Food

7.4

Crew

8.6

Overall

8.1

Comfort

7.9

Boarding

8.2

Entertainment

8.0

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
8.1
Very good
10,874 reviews
Delta
8.1
Very good
10,874 reviews
Check prices

Food

7.4

Crew

8.6

Overall

8.1

Comfort

7.9

Boarding

8.2

Entertainment

8.0

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
4,561 reviews
Delta
8.1
Very good
10,874 reviews
Check prices

Food

7.4

Crew

8.6

Overall

8.1

Comfort

7.9

Boarding

8.2

Entertainment

8.0

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
11,159 reviews
Delta
8.1
Very good
10,874 reviews
Check prices

Food

7.4

Crew

8.6

Overall

8.1

Comfort

7.9

Boarding

8.2

Entertainment

8.0

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.

American Airlines
7.3
Good
14,788 reviews
Delta
8.1
Very good
10,874 reviews
Check prices

Food

7.4

Crew

8.6

Overall

8.1

Comfort

7.9

Boarding

8.2

Entertainment

8.0

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.

Sun Country Air
7.3
Good
649 reviews
Delta
8.1
Very good
10,874 reviews
Check prices

Food

7.4

Crew

8.6

Overall

8.1

Comfort

7.9

Boarding

8.2

Entertainment

8.0

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 $119, but on average you can expect to pay $163.

  • 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 $291.

  • 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, Thursday, Friday, Saturday.

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

    17 flight departures from Buffalo to Illinois per day on average.
    Morning (6am - Noon) - 29% of flight departures
    Afternoon (Noon - 6pm) - 53% of flight departures
    Evening (6pm - Midnight) - 18% of flight departures

  • How long is the flight from Buffalo to Illinois?

    For as low as $119, Frontier can have you in Illinois from Buffalo in 4h 59m. The distance between Buffalo and Illinois is about 474 mi.

  • 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 $68. Users have also found prices from $88 and $125 on Sun Country Air and American 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 popular airlines that fly from Buffalo to Illinois?

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

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

    Consider Republic Airways (96%), GoJet (96%) or Copa Airlines (95%) 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 $138. On average you can expect to pay $949. The most popular route, (Buffalo - Chicago O'Hare Intl), can usually be booked for $186.

  • 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 5/1.

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 3 airlines flying from Buffalo to Illinois

Discover the top 3 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 2,899,487 searches. Data last updated May 2, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$142Average$314FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest$169Average$339FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$219Average$346FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
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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.
First Class
Business Class
Prem Econ Class
Economy Class

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 2, 2024.
1%of flight departuresEarly morningMidnight to 6 am
58%of flight departuresMorning6 am to noon
36%of flight departuresAfternoonNoon to 6 pm
5%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

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Can Cheapflights notify me if prices for flights from Buffalo to Illinois become cheaper?

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