HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

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 9/21. 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 11 — Jun 181
From?
To?
Tue 6/11
Tue 6/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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 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 3,050,429 searches. Prices were last updated on June 6, 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 6/5$136
Wed 6/122:46 pmBUF - ORD
1 stop4h 59mFrontier
Tue 6/188:00 amORD - BUF
1 stop10h 53mFrontier
Deal found 6/5$140
Wed 6/122:46 pmBUF - ORD
1 stop4h 59mFrontier
Mon 6/178:00 amORD - BUF
1 stop4h 45mFrontier
Deal found 6/5$146
Wed 6/122:46 pmBUF - ORD
1 stop4h 59mFrontier
Mon 6/178:00 amORD - BUF
1 stop4h 45mFrontier
Deal found 6/5$148
Mon 6/102:46 pmBUF - ORD
1 stop4h 59mFrontier
Wed 6/128:00 amORD - BUF
1 stop4h 45mFrontier
Deal found 6/5$159
Wed 6/192:46 pmBUF - ORD
1 stop5h 14mFrontier
Wed 6/268:00 amORD - BUF
1 stop4h 45mFrontier
Deal found 6/5$160
Wed 6/262:46 pmBUF - ORD
1 stop5h 14mFrontier
Fri 6/285:58 pmORD - BUF
1 stop25h 19mFrontier
Deal found 6/6$164
Wed 6/122:46 pmBUF - ORD
1 stop4h 59mFrontier
Fri 6/218:00 amORD - BUF
1 stop4h 45mFrontier
Deal found 6/5$165
Wed 6/192:46 pmBUF - ORD
1 stop5h 14mFrontier
Sat 6/222:10 pmORD - BUF
1 stop27h 42mFrontier
Deal found 6/6$170

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 3,050,429 searches. Data last updated June 6, 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 6/5$96
Tue 9/311:45 amBUF - ORD
1 stop14h 14mFrontier
Tue 9/107:00 amORD - BUF
1 stop12h 02mFrontier
Deal found 6/5$110
Wed 6/122:46 pmBUF - ORD
1 stop4h 59mFrontier
Wed 6/198:00 amORD - BUF
1 stop4h 45mFrontier
Deal found 6/5$136
Wed 6/122:46 pmBUF - ORD
1 stop4h 59mFrontier
Tue 6/188:00 amORD - BUF
1 stop10h 53mFrontier
Deal found 6/5$140
Wed 6/122:46 pmBUF - ORD
1 stop4h 59mFrontier
Mon 6/178:00 amORD - BUF
1 stop4h 45mFrontier
Deal found 6/5$146
Wed 6/122:46 pmBUF - ORD
1 stop4h 59mFrontier
Mon 6/178:00 amORD - BUF
1 stop4h 45mFrontier
Deal found 6/5$148
Fri 8/166:46 pmBUF - ORD
1 stop7h 17mFrontier
Mon 8/195:56 pmORD - BUF
1 stop15h 56mFrontier
Deal found 6/6$149
Mon 6/102:46 pmBUF - ORD
1 stop4h 59mFrontier
Wed 6/128:00 amORD - BUF
1 stop4h 45mFrontier
Deal found 6/5$159
Wed 6/192:46 pmBUF - ORD
1 stop5h 14mFrontier
Wed 6/268:00 amORD - BUF
1 stop4h 45mFrontier
Deal found 6/5$160

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 3,050,429 searches. Data last updated June 6, 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 6/5$136
Wed 6/122:46 pmBUF - ORD
1 stop4h 59mFrontier
Tue 6/188:00 amORD - BUF
1 stop10h 53mFrontier
Deal found 6/5$140
Wed 6/122:46 pmBUF - ORD
1 stop4h 59mFrontier
Mon 6/178:00 amORD - BUF
1 stop4h 45mFrontier
Deal found 6/5$146
Wed 6/122:46 pmBUF - ORD
1 stop4h 59mFrontier
Mon 6/178:00 amORD - BUF
1 stop4h 45mFrontier
Deal found 6/5$148
Wed 6/122:46 pmBUF - ORD
1 stop4h 59mFrontier
Fri 6/218:00 amORD - BUF
1 stop4h 45mFrontier
Deal found 6/5$165
Wed 6/122:46 pmBUF - ORD
1 stop4h 59mFrontier
Fri 6/148:00 amORD - BUF
1 stop4h 45mFrontier
Deal found 6/5$171
Wed 6/122:46 pmBUF - ORD
1 stop4h 59mFrontier
Fri 6/148:00 amORD - BUF
1 stop4h 45mFrontier
Deal found 6/4$175
Wed 6/122:46 pmBUF - ORD
1 stop4h 59mFrontier
Wed 6/198:00 amORD - BUF
1 stop4h 45mFrontier
Deal found 6/6$179
Wed 6/122:46 pmBUF - ORD
1 stop4h 59mFrontier
Tue 6/188:00 amORD - BUF
1 stop10h 53mFrontier
Deal found 6/5$182

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 3,050,429 searches. Data last updated June 6, 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.
Sat 9/219:19 pmBUF - ORD
1 stop28h 40mFrontier
Deal found 6/5$68
Wed 9/182:45 pmBUF - ORD
1 stop4h 57mFrontier
Deal found 6/5$81
Thu 8/83:13 pmBUF - MDW
1 stop7h 47mFrontier
Deal found 6/5$88
Sat 7/612:36 pmBUF - MDW
1 stop21h 44mFrontier
Deal found 6/5$91
Wed 7/106:28 pmBUF - STL
1 stop26h 29mFrontier
Deal found 6/5$94
Fri 7/52:00 pmBUF - ORD
1 stop6h 39mSun Country Air
Deal found 6/5$98
Wed 9/186:19 pmBUF - MLI
1 stop5h 07mDelta
Deal found 6/6$99
Mon 7/12:46 pmBUF - ORD
1 stop5h 14mFrontier
Deal found 6/5$100
Sun 9/159:19 pmBUF - STL
1 stop24h 01mFrontier
Deal found 6/5$101

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 3,050,429 searches. Data last updated June 6, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$96 - $270

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

$96

BuffaloChicago O'Hare Intl

BUF - ORD

BUFORD

Buffalo

Tue 9/3

1 stop14h 14m

Chicago O'Hare Intl

Tue 9/10

1 stop12h 02m

$110

BuffaloChicago O'Hare Intl

BUF - ORD

BUFORD

Buffalo

Wed 6/19

1 stop5h 14m

Chicago O'Hare Intl

Wed 6/26

1 stop4h 45m

$160

BuffaloChicago O'Hare Intl

BUF - ORD

BUFORD

Buffalo

Fri 7/19

1 stop4h 57m

Chicago O'Hare Intl

Wed 7/24

1 stop14h 03m

$213

BuffaloChicago O'Hare Intl

BUF - ORD

BUFORD

Buffalo

Thu 7/4

1 stop7h 28m

Chicago O'Hare Intl

Tue 7/9

1 stop4h 35m

$226

BuffaloChicago O'Hare Intl

BUF - ORD

BUFORD

Buffalo

Fri 6/28

Nonstop1h 52m

Chicago O'Hare Intl

Tue 7/2

Nonstop1h 41m

$227

BuffaloLambert-St Louis

BUF - STL

BUFSTL

Buffalo

Tue 6/18

1 stop6h 06m

Lambert-St Louis

Tue 6/25

1 stop6h 57m

$236

BuffaloChicago O'Hare Intl

BUF - ORD

BUFORD

Buffalo

Wed 6/19

Nonstop1h 51m

Chicago O'Hare Intl

Wed 6/26

Nonstop1h 46m

$255

BuffaloChicago O'Hare Intl

BUF - ORD

BUFORD

Buffalo

Mon 7/8

1 stop5h 57m

Chicago O'Hare Intl

Thu 7/11

1 stop15h 55m

$270

Flights are sorted by cheapest first

Deals found on 6/5

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 6, 2024.
Get a feel of what it's like to fly with Sun Country Air, Frontier and Delta 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
10,368 reviews

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Overall

8.0

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
10,368 reviews
Delta
8.0
Very good
10,368 reviews

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Overall

8.0

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
4,316 reviews
Delta
8.0
Very good
10,368 reviews

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Overall

8.0

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
2,856 reviews
Delta
8.0
Very good
10,368 reviews

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Overall

8.0

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.

Avianca
7.5
Good
3,599 reviews
Delta
8.0
Very good
10,368 reviews

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Overall

8.0

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
10,696 reviews
Delta
8.0
Very good
10,368 reviews

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Overall

8.0

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 $100 on Cheapflights?

    Yes, there are multiple flights from Buffalo to Illinois for under $100. The cheapest flight booked recently is on Frontier for just $96, but on average you can expect to pay $176.

  • 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 $277.

  • 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, Friday.

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

    3 flight departures from Buffalo to Illinois per day on average.
    Morning (6am - Noon) - 33% of flight departures
    Afternoon (Noon - 6pm) - 33% of flight departures
    Evening (6pm - Midnight) - 33% of flight departures

  • How long is the flight from Buffalo to Illinois?

    For as low as $96, 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 $68. Users have also found prices from $98 and $99 on Sun Country Air and Delta, 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 Gulf Air (90%), Royal Jordanian (88%) or GoJet (86%) 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 $187.

  • 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 6/6.

  • 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 July is currently the most expensive (average of $324). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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

Newark to Fort Lauderdale flights
Newark to Miami flights
Newark to Orlando flights
Newark to Los Angeles flights
Newark to Las Vegas flights
LaGuardia to Fort Lauderdale flights
LaGuardia to Orlando flights
John F Kennedy Intl to Los Angeles flights
John F Kennedy Intl to Miami flights
John F Kennedy Intl to Las Vegas flights
LaGuardia to Miami flights
John F Kennedy Intl to San Francisco flights
LaGuardia to Dallas/Fort Worth flights
LaGuardia to O'Hare Intl flights
John F Kennedy Intl to O'Hare Intl flights
Newark to O'Hare Intl flights
John F Kennedy Intl to Seattle flights
John F Kennedy Intl to Orlando flights
Newark to Dallas/Fort Worth flights
John F Kennedy Intl to Fort Lauderdale flights
Newark to Seattle flights
Newark to San Francisco flights
LaGuardia to Los Angeles flights
John F Kennedy Intl to Dallas/Fort Worth flights
LaGuardia to Las Vegas flights
Newark to Tampa flights
LaGuardia to Tampa flights
Newark to Atlanta flights
John F Kennedy Intl to West Palm Beach flights
LaGuardia to Denver flights
Newark to Nashville flights
LaGuardia to Seattle flights
LaGuardia to San Francisco flights
Newark to Midway flights
Newark to Burbank flights
LaGuardia to Atlanta flights
John F Kennedy Intl to Denver flights
John F Kennedy Intl to Ontario flights
John F Kennedy Intl to Atlanta flights
Newark to Denver flights
White Plains to Charleston flights
Newark to Raleigh flights
Newark to Oakland flights
LaGuardia to Midway flights
Newark to Hobby flights
John F Kennedy Intl to Midway flights
Newark to West Palm Beach flights
John F Kennedy Intl to Tampa flights
Newark to Charlotte flights
LaGuardia to New Orleans flights

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 3,050,429 searches. Data last updated June 6, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$95Average$184FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$142Average$397FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$169Average$340FlexibilityNo cancel feeOn-time71%
DeltaCheapest$219Average$346FlexibilityNo cancel feeOn-timeN/A
Boston to New Orleans flights
Los Angeles to Manila flights
Boston to Tampa flights
Washington, D.C. to Orlando flights
Orlando to New Orleans flights
Chicago to Florida flights
Nashville to Knoxville flights
San Jose to Los Angeles flights
New York to Florida flights
New Orleans to New York flights
Miami to Lima flights
Buffalo to Indiana flights

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 June 6, 2024.
1%of flight departuresEarly morningMidnight to 6 am
67%of flight departuresMorning6 am to noon
32%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Gaziantep
Flights to Miyakojima Hirara
Flights to Figari-Sud Corse
Flights to Mason City
Flights to Komatsu
Flights to Sendai
Flights to Rhinelander Oneida County
Flights to Constanţa Mihail Kogalniceanu
Flights to Brainerd Crow Wing County
Flights to Reus
Flights to Virac
Flights to Neiva La Marguita
Flights to Pellston Emmet County
Flights to Urumqi
Flights to Bastia Poretta
Flights to Samos
Flights to Hyannis Barnstable
Flights to Provincetown
Flights to Alghero-Fertilia
Flights to Laayoune Hassan I
Flights to Devils Lake
Flights to Vava'u Lupepau'U
Flights to Hakodate
Flights to Edremit/Korfez
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines