BUF - CHI

$104 Find Cheap Flights from Buffalo to Chicago - Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest round-trip
$234
Typical prices: $280-$448
Frontier
Wed 10/10Fri 10/12
BUF - MDW • 1 stop
Cheapest non-stop
$270
Typical prices: $295-$456
Southwest
Fri 10/26Sun 10/28
BUF - MDW • Non-stop
Nonstop flights
You can fly direct with United Airlines, American Airlines and Southwest. Average duration is 2h 01m
Direct flights
+1
Direct flights
+1
Top routes
Cheapest • 4% average savings
Most popular
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 20 weeks in advance save around 64% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 19% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $144 (round-trip)
Shortest trip • 3h 57m (one-way)
Insights
Insights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Chicago!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Buffalo to Chicago (BUF-CHI)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Buffalo to Chicago

Sat, Oct 10 - Mon, Oct 12
Frontier Logo
1:44 pm - 11:43 pmBUF  Buffalo-MDW Chicago Midway
10h 59m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
6:15 am - 12:59 pmMDW  Chicago Midway-BUF Buffalo
5h 44m1 stop Atlanta Hartsfield-Jackson
$234Frontier
Thu, Oct 15 - Tue, Oct 20
Frontier Logo
12:53 pm - 7:31 amBUF  Buffalo-ORD Chicago O'Hare Intl
19h 38m1 stop Orlando
Frontier Logo
8:46 am - 5:56 pmORD  Chicago O'Hare Intl-BUF Buffalo
8h 10m1 stop Orlando
$235Frontier
Sat, Oct 24 - Sun, Oct 25
Frontier Logo
1:44 pm - 9:21 amBUF  Buffalo-ORD Chicago O'Hare Intl
20h 37m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
7:44 pm - 12:59 pmORD  Chicago O'Hare Intl-BUF Buffalo
16h 15m1 stop Atlanta Hartsfield-Jackson
$236Frontier
Mon, Oct 26 - Wed, Oct 28
Southwest Logo
7:35 pm - 8:15 pmBUF  Buffalo-MDW Chicago Midway
1h 40mnonstop
Southwest Logo
1:15 pm - 3:45 pmMDW  Chicago Midway-BUF Buffalo
1h 30mnonstop
$270Southwest
Thu, Oct 1 - Mon, Oct 5
American Airlines Logo
7:59 am - 9:10 amBUF  Buffalo-ORD Chicago O'Hare Intl
2h 11mnonstop
American Airlines Logo
9:16 pm - 11:59 pmORD  Chicago O'Hare Intl-BUF Buffalo
1h 43mnonstop
$277American Airlines
Thu, Oct 8 - Mon, Oct 12
American Airlines Logo
8:00 am - 9:05 amBUF  Buffalo-ORD Chicago O'Hare Intl
2h 05mnonstop
American Airlines Logo
9:16 pm - 11:59 pmORD  Chicago O'Hare Intl-BUF Buffalo
1h 43mnonstop
$277American Airlines
Wed, Oct 14 - Wed, Oct 14
United Airlines Logo
10:46 am - 11:45 amBUF  Buffalo-ORD Chicago O'Hare Intl
1h 59mnonstop
United Airlines Logo
6:00 pm - 8:47 pmORD  Chicago O'Hare Intl-BUF Buffalo
1h 47mnonstop
$277United Airlines
Thu, Oct 15 - Sat, Oct 17
United Airlines Logo
10:46 am - 11:45 amBUF  Buffalo-ORD Chicago O'Hare Intl
1h 59mnonstop
United Airlines Logo
6:00 pm - 8:47 pmORD  Chicago O'Hare Intl-BUF Buffalo
1h 47mnonstop
$277United Airlines
Sat, Oct 24 - Wed, Oct 28
Southwest Logo
4:55 pm - 5:35 pmBUF  Buffalo-MDW Chicago Midway
1h 40mnonstop
Southwest Logo
7:55 am - 10:25 amMDW  Chicago Midway-BUF Buffalo
1h 30mnonstop
$277Southwest
Wed, Oct 7 - Wed, Oct 14
American Airlines Logo
5:50 pm - 7:00 pmBUF  Buffalo-ORD Chicago O'Hare Intl
2h 10mnonstop
American Airlines Logo
9:16 pm - 11:59 pmORD  Chicago O'Hare Intl-BUF Buffalo
1h 43mnonstop
$277American Airlines
Booking Insights

Price, demand and travel trends for Buffalo to Chicago flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Buffalo to Chicago with more confidence.

How much is a round-trip flight from Buffalo to Chicago?

Round-trip flights from Buffalo to Chicago start at $234. Prices are below average for this route right now, with typical round-trip fares ranging from $280 to $448. The lowest price found in the past 5 days was $234 on Frontier.

What is the cheapest Buffalo to Chicago flight route?

There's little price difference between Buffalo to Chicago routes. They average around $353 round-trip, based on KAYAK data over the past 12 months.

What's the cheapest day of the week to fly from Buffalo to Chicago?

Saturday is the cheapest day of the week to fly from Buffalo to Chicago, it is 12% cheaper than the average day. Sunday is the most expensive day with flight prices 20% higher than average. Based on deals found by KAYAK users in the last 12 months.

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

  • January is the cheapest month to fly from Buffalo to Chicago at $282 round-trip.
  • March ($465) and June ($388) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 64% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Buffalo to Chicago the cheapest?

Flights from Buffalo to Chicago are cheapest 20 weeks before departure. Booking in this window typically costs about 64% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from Buffalo to Chicago

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on American Airlines

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Stefanie Waldek

Stefanie Waldek

Expert on United Airlines

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Blane Bachelor

Blane Bachelor

Expert on Southwest

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Key details for Buffalo to Chicago flights

Low season

January

Cheapest flight

$104
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly with an average 12% increase in price.
Flight from Buffalo to Chicago Midway Airport

When to book flights from Buffalo to Chicago

Are your dates flexible? Find out the best times to travel from Buffalo to Chicago based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Buffalo to Chicago flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • What kinds of flights can I find between Buffalo and Chicago?

    There are quite a few daily nonstop flights from Buffalo to Chicago and these journeys are usually serviced by airlines like American Airlines and United. You can also find some daily journeys that have connections and they can also be serviced by United. Connections often take place in cities such as Charlotte.

  • What are my options for going from downtown Buffalo to Buffalo Niagara International Airport?

    If you drive from downtown Buffalo to Buffalo Niagara International Airport, you can plan on the journey taking you around 15min in total. You can always choose public transportation instead, like bus line 24. The bus will get you to BUF in around 45 to 50min in total.

  • How can I easily go from O'Hare International Airport to central Chicago?

    One easy way to go from O'Hare International Airport to central Chicago is by driving, which normally will take you approximately 20 to 25 minute. You can also grab the Blue metro line, which will bring you to downtown Chicago in around 50 to 55 minute.

  • Do I have the option of renting a car directly from Chicago Midway International Airport?

    Chicago Midway International Airport does offer the option of renting a car directly from this transportation hub. The rental center can be found in the Arrivals terminal and there are a few different companies that have offices here, including Budget, Enterprise, and National. They all store their fleets right near the Midway Airport Rental Car Facility, so it will be easy to walk to your vehicle after completing any necessary paperwork.

  • Which airlines offer extra legroom and free seat selection on Buffalo to Chicago flights?

    Among airlines operating Buffalo to Chicago flights:

    • United Airlines: offers extra legroom; offers free seat selection
    • Southwest: offers free seat selection
    • American Airlines: offers extra legroom; offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • What airlines are available from Buffalo to Chicago?

    3 airlines operate flights between Buffalo and Chicago. The airlines offering nonstop flights on this route include:

    • United Airlines
    • American Airlines
    • Southwest

  • Which airports can I use when flying from Buffalo to Chicago?

    Flights from Buffalo to Chicago usually depart from Buffalo (BUF) and may arrive at several airports in Chicago area, including Chicago Midway (MDW), Chicago O'Hare Intl (ORD) and Chicago Greater Rockford (RFD).

  • Which airlines include bags at no extra cost on Buffalo to Chicago flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • United Airlines: a cabin bag and a checked bag in Economy Class
    • Southwest: a cabin bag and a checked bag in Economy Class
    • American Airlines: a cabin bag and a checked bag in Economy Class

    Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

  • What cabin classes can I book on flights from Buffalo to Chicago?

    Two cabin classes are available on flights from Buffalo to Chicago:

    • Economy Class
    • First Class

  • How much can I save by taking a layover when flying from Buffalo to Chicago?

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $144 round-trip via Raleigh-Durham (RDU), compared to $357 for nonstop.

  • What is the standard checked-bag allowance on flights from Buffalo to Chicago?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $40–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • Which airports do connecting flights from Buffalo to Chicago pass through?

    One-stop flights from Buffalo to Chicago most commonly connect through:

    • Atlanta Hartsfield-Jackson (ATL) - 55% of one-stop connections
    • Detroit Metropolitan Wayne County (DTW) - 16% of one-stop connections
    • New York John F Kennedy Intl (JFK) - 16% of one-stop connections
    • Boston Logan Intl (BOS) - 4% of one-stop connections

    Atlanta Hartsfield-Jackson (ATL) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Buffalo to Chicago?

    On the Buffalo to Chicago route, being flexible with your departure day can save you up to 27%. Saturday is the cheapest day at $308 round-trip on average, while Sunday is the most expensive at $420: a $112 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • How are flight departures from Buffalo to Chicago spread across the day?

    Morning is the busiest departure period on Buffalo to Chicago flights, with 50% of flights leaving in that window. Evening departures account for 30%, afternoon flights for 20%, and night flights for 0%.

  • What popular places can I visit in Chicago?

    Some of the most popular sights in Chicago are Magnificent Mile, Grant Park and River North. These are among the most viewed places in Chicago on KAYAK.

  • What are the earliest and latest flights from Buffalo to Chicago?

    These are the earliest and latest flight times available from Buffalo to Chicago:

    • Earliest: departs at 6:00 am and lands at 8:01 am
    • Latest: departs at 9:45 pm and lands at 11:46 pm.

    The flight takes about 2h 01m.

  • How expensive are last-minute Buffalo to Chicago flights?

    Last-minute fares on this route - booked within 2 weeks of departure - run 61% above the route average of $348. Book 20 weeks before departure for the lowest fares.

  • How long is a flight from Buffalo to Chicago?

    A nonstop flight from Buffalo to Chicago takes 2h 01m, covering 459 miles.

  • Do I need a passport to fly from Buffalo to Chicago?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

  • Have flight prices from Buffalo to Chicago changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $234 to $899. That means the highest observed fare was about 4x higher than the lowest one.

  • How are flight prices from Buffalo to Chicago looking right now?

    One-way fares from Buffalo to Chicago are currently lower than usual. Average one-way flight prices are about $128, which is 38% below the typical average for this route.

  • How much time can I save by choosing a different layover airport from Buffalo to Chicago?

    Flying via Detroit Metropolitan Wayne County (DTW) gives the shortest average 1-stop total travel time at 3h 57m, compared with 4h 33m via Chicago O'Hare Intl (ORD) and 5h 49m via Boston Logan Intl (BOS).

  • What is the time difference between Buffalo and Chicago?

    Chicago is 1 hour behind Buffalo (Central Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available in Chicago?

    Since Chicago is served by multiple airports, car rental options and rates can vary depending on which one you fly into.
    Near Chicago O'Hare Intl Airport (ORD) — daily rates from around $17:

    • Routes Car & Truck Rentals
    • Europcar
    • Hertz
    • Dollar
    • Ace

    Near Chicago Midway Airport (MDW) — daily rates from around $32:

    • Hertz
    • Dollar
    • Budget
    • Alamo
    • Rent-A-Wreck

    Near Chicago Greater Rockford Airport (RFD) — daily rates from around $30:

    • Alamo
    • Enterprise Rent-A-Car
    • Budget
    • Avis
    • National

  • How much should I expect to pay for a Buffalo to Chicago flight?

    Round-trip flights from Buffalo to Chicago range from $280 to $448, with an average of $348 over the past 12 months. Anything below $280 counts as a good deal.

  • Which airlines offer Wi-Fi on Buffalo to Chicago flights?

    Two airlines offer in-flight Wi-Fi on Buffalo to Chicago flights:

    • • American Airlines
    • • JetBlue

    Pricing varies by airline and fare class. Some plans are included with the ticket or loyalty program; others are paid add-ons priced by flight length.

Your guide to booking Buffalo to Chicago flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Saturday departure instead of Sunday. On this route, Saturday flights average $308 - about $112 less than Sunday (27% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 20 weeks before you fly. On this route, that window historically saves about 64% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Buffalo to Chicago trip for January. Fares historically average $282 round-trip in that month - typically $183 less than the most expensive month, which is March (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Raleigh-Durham Airport (RDU) can be cheaper than flying direct. The cheapest layover option averages $144 round-trip on this route - about $213 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Chicago Midway Airport.
    - DoubleTree by Hilton Chicago Midway Airport
    - Holiday Inn Chicago - Midway Airport S by IHG
    - Skylark Motel
  • If you’ll be flying to the Chicago region, you can choose from two different airports for your departure. Chicago Midway International Airport (MDW) is located approximately 12 miles from central Chicago, while O'Hare International Airport (ORD) is located around 17 miles from the city’s downtown.
  • Before boarding your flight at Buffalo Niagara International Airport (BUF), you may want to relax in a lounge. There is The Club that can be found in the Main Terminal between Gates 6 and 7 and it is available to all passengers for a small fee.
  • When you have an early flight out of O'Hare International Airport, it can be convenient to book a nearby hotel the night before. The Hilton Chicago O’Hare Airport Hotel is directly connected to Terminal 2 at the airport, while the Aloft Chicago O’Hare is around a 5 minute drive away and has a free shuttle.
  • Those that will be traveling with small children will want to take note of the nursing room that is near Gate 12 of Buffalo Niagara International Airport. This nursing room has plenty of room for a stroller and also has running water, seating, and a changing table.
  • If you are a bit hungry before your flight begins boarding at Chicago Midway International Airport, there are a few different dining options for you to choose from. There is an Arami that can be found in Concourse A, as well as a Camden Food that is in Concourse B.

Prefer to fly direct from Buffalo to Chicago?

 
Find which airlines fly direct from Buffalo Airport to Chicago, which days they fly and book direct flights.

Direct departures

Buffalo to Chicago

Monday

American Airlines,Southwest,United Airlines

American Airlines,Southwest, +1 more

Tuesday

American Airlines,Southwest,United Airlines

American Airlines,Southwest, +1 more

Wednesday

American Airlines,Southwest,United Airlines

American Airlines,Southwest, +1 more

Thursday

American Airlines,Southwest,United Airlines

American Airlines,Southwest, +1 more

Friday

American Airlines,Southwest,United Airlines

American Airlines,Southwest, +1 more

Saturday

American Airlines,Southwest,United Airlines

American Airlines,Southwest, +1 more

Sunday

American Airlines,Southwest,United Airlines

American Airlines,Southwest, +1 more

See more direct flights

Direct returns

Chicago to Buffalo

Monday

American Airlines,Southwest,United Airlines

American Airlines,Southwest, +1 more

Tuesday

American Airlines,Southwest,United Airlines

American Airlines,Southwest, +1 more

Wednesday

American Airlines,Southwest,United Airlines

American Airlines,Southwest, +1 more

Thursday

American Airlines,Southwest,United Airlines

American Airlines,Southwest, +1 more

Friday

American Airlines,Southwest,United Airlines

American Airlines,Southwest, +1 more

Saturday

American Airlines,Southwest,United Airlines

American Airlines,Southwest, +1 more

Sunday

American Airlines,Southwest,United Airlines

American Airlines,Southwest, +1 more

See more direct flights

More options for your flight from Buffalo to Chicago

Complete your trip to Chicago with a hotel stay or car rental