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$53+ Cheap flights from Buffalo (BUF) to Illinois

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/19. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — ORD
Nov 9 — Nov 161
1 adult
Sat 11/9
Sat 11/16
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Find flight deals from Buffalo to Illinois

Cheapest flights from Buffalo to Illinois
Explore the most affordable flight options available from Buffalo to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 4, 2024.

This Frontier deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1510:00 amBUF - MDW
1 stop6h 21mFrontier
Sun 11/176:00 amMDW - BUF
1 stop7h 26mFrontier
Deal found 11/3$198
This Gotogate deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/155:21 pmBUF - ORD
1 stop25h 20mFrontier
Sun 11/176:00 amORD - BUF
1 stop7h 26mFrontier
Deal found 11/3$207
This FlightHub deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/161:46 pmBUF - STL
1 stop19h 40mFrontier
Sat 11/236:32 pmSTL - BUF
1 stop16h 15mFrontier
Deal found 11/4$208
This American Airlines deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/67:04 pmBUF - MLI
1 stop5h 51mAmerican Airlines
Fri 12/1311:21 amMLI - BUF
1 stop4h 17mAmerican Airlines
Deal found 11/3$248
This United Airlines deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/317:00 amBUF - ORD
Nonstop2h 04mUnited Airlines
Tue 12/312:02 pmORD - BUF
Nonstop1h 42mUnited Airlines
Deal found 11/4$279
This American Airlines deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/46:06 amBUF - ORD
1 stop11h 04mAmerican Airlines
Wed 12/116:15 amORD - BUF
1 stop8h 15mAmerican Airlines
Deal found 11/4$283
This JetBlue deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/410:10 amBUF - ORD
1 stop6h 43mJetBlue
Wed 12/114:40 pmORD - BUF
1 stop4h 41mJetBlue
Deal found 11/4$287
This Delta deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/239:07 amBUF - ORD
1 stop4h 43mDelta
Sun 11/247:35 pmORD - BUF
1 stop3h 34mDelta
Deal found 11/3$297
This Delta deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/611:55 amBUF - MLI
2 stops12h 06mDelta
Fri 12/135:02 pmMLI - BUF
1 stop5h 54mDelta
Deal found 11/3$303
This United Airlines deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/195:50 pmBUF - MLI
1 stop4h 17mUnited Airlines
Sat 11/233:55 pmMLI - BUF
1 stop3h 52mUnited Airlines
Deal found 11/4$328
This Southwest deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/258:25 pmBUF - MDW
Nonstop1h 45mSouthwest
Fri 11/291:10 pmMDW - BUF
1 stop8h 05mSouthwest
Deal found 11/2$341
This Southwest deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/238:30 pmBUF - STL
1 stop3h 40mSouthwest
Tue 12/2412:25 pmSTL - BUF
1 stop8h 50mSouthwest
Deal found 11/3$342

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 2,455,398 searches. Data last updated November 4, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Wed 2/19

6:46 pm-1:03 am

1 stop7h 17m

$53

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Tue 2/25

11:10 am-3:29 pm

1 stop5h 19m

$93

BuffaloChicago

BUF - MDW

BUFMDW

Buffalo

Tue 12/17

10:32 am-5:54 pm

1 stop8h 22m

$54

BuffaloChicago

BUF - MDW

BUFMDW

Buffalo

Thu 11/28

6:10 am-6:55 am

Nonstop1h 45m

$140

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Sun 11/24

7:00 am-7:58 am

Nonstop1h 58m

$140

BuffaloSt. Louis

BUF - STL

BUFSTL

Buffalo

Tue 1/21

12:50 pm-11:28 pm

1 stop11h 38m

$65

BuffaloChicago

BUF - MDW

BUFMDW

Buffalo

Tue 12/24

11:55 am-4:10 pm

1 stop5h 15m

$149

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Wed 12/4

5:50 pm-6:47 pm

Nonstop1h 57m

$175

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Tue 12/24

11:55 am-4:40 pm

1 stop5h 45m

$149

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Mon 11/25

6:00 am-1:00 pm

2 stops8h 00m

$154

Flights are sorted by cheapest first

Deals found on 11/3

Showing 1-10 of 32 results
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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.

Travel insights for flights from Buffalo to Illinois

Get recent, data-driven insights about flights from Buffalo to Illinois including ideal travel times, pricing trends, and more.

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

Currently, September is the cheapest month in which you can book a flight from Buffalo to Illinois (average of $232). Flying from Buffalo to Illinois in June is currently the most expensive (average of $308). 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 BUF to IL?

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 November 4, 2024.

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.

Weekly flight availability from Buffalo to Illinois

Explore weekly flight availability from Buffalo to Illinois. 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 November 4, 2024.

The most flights from BUF to USIL are scheduled on a Monday (22 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (10 on average).

Rainfall in Illinois by month

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

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

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

If weather is an important factor for your trip to Illinois, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 November 4, 2024.
Get a feel of what it's like to fly with Frontier, Delta and United 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.
Southwest
8.1
Very good
5,089 reviews

Overall

8.1

Boarding

8.3

Entertainment

7.7

Crew

8.7

Comfort

8.1

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Southwest
8.1
Very good
5,089 reviews
Southwest
8.1
Very good
5,089 reviews

Overall

8.1

Boarding

8.3

Entertainment

7.7

Crew

8.7

Comfort

8.1

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Delta
8.0
Very good
8,829 reviews
Southwest
8.1
Very good
5,089 reviews

Overall

8.1

Boarding

8.3

Entertainment

7.7

Crew

8.7

Comfort

8.1

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

JetBlue
7.5
Good
3,493 reviews
Southwest
8.1
Very good
5,089 reviews

Overall

8.1

Boarding

8.3

Entertainment

7.7

Crew

8.7

Comfort

8.1

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

United Airlines
7.4
Good
9,226 reviews
Southwest
8.1
Very good
5,089 reviews

Overall

8.1

Boarding

8.3

Entertainment

7.7

Crew

8.7

Comfort

8.1

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
5,089 reviews

Overall

8.1

Boarding

8.3

Entertainment

7.7

Crew

8.7

Comfort

8.1

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

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 $108, but on average you can expect to pay $293.

  • Are there nonstop flights from Buffalo to Illinois for under $400 on Cheapflights?

    Cheapflights has at least 3 direct flights from Buffalo to Illinois under $400. A good price for a nonstop flight from Buffalo to Illinois is less than $327.

  • Are there last-minute flights available from Buffalo to Illinois for under $300?

    There are currently 13+ open flights from Buffalo to Illinois within the next 7 days for less than $300.

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

    Nonstop flights can be found on the following days: Monday, Thursday.

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

    12 flight departures from Buffalo to Illinois per day on average.
    Morning (6am - Noon) - 67% of flight departures
    Afternoon (Noon - 6pm) - 8% of flight departures
    Evening (6pm - Midnight) - 25% of flight departures

  • How long is the flight from Buffalo to Illinois?

    For as low as $108, Frontier can have you in Illinois from Buffalo in 5h 51m. 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 $53. Users have also found prices from $93 and $140 on JetBlue and Southwest, 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 Copa Airlines (100%), Avianca (100%) or Republic Airways (100%) 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 $115. On average you can expect to pay $862. The most popular route, (Buffalo - Chicago O'Hare Intl), can usually be booked for $149.

  • 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), Champaign University-Willard Airport (CMI).

  • 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 11/4.

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

    Currently, September is the cheapest month in which you can book a flight from Buffalo to Illinois (average of $232). Flying from Buffalo to Illinois in June is currently the most expensive (average of $308). 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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Top 6 airlines flying from Buffalo to Illinois

Discover the top 6 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 2,455,398 searches. Data last updated November 4, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$95Average$198FlexibilityNo cancel feeOn-time62%
DeltaCheapest$135Average$347FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$148Average$405FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$169Average$310FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$175Average$201FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$238Average$315FlexibilityNo cancel feeOn-time63%
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