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Buffalo Niagara International Airport to O'Hare International Airport flight

Explore the cheapest one-way and round-trip flights from Buffalo Niagara International Airport to O'Hare International Airport over the next 90 days, with one-way fares from CAD 145 and round-trip from CAD 301. Based on Trip.com's latest 7-day flight data.

    • Cheapest
      BUF 1:03 PM
      12h 40m
      1 stop
      ORD 12:43 AM
      Buffalo - Chicago | Sat, Nov 21 | Frontier Airlines
      CAD 145 CAD 231
      37% off
      37% off
      CAD 231 CAD 145
    • BUF 9:38 PM
      28h 18m
      1 stop
      ORD 12:56 AM
      Buffalo - Chicago | Sat, Dec 19 | Frontier Airlines
      CAD 150 CAD 231
      35% off
      35% off
      CAD 231 CAD 150
    • BUF 9:20 PM
      28h 22m
      1 stop
      ORD 12:42 AM
      Buffalo - Chicago | Tue, Nov 24 | Frontier Airlines
      CAD 150 CAD 231
      35% off
      35% off
      CAD 231 CAD 150
    • BUF 9:20 PM
      28h 22m
      1 stop
      ORD 12:42 AM
      Buffalo - Chicago | Wed, Nov 25 | Frontier Airlines
      CAD 150
      35% off
      CAD 231 CAD 150
    • BUF 1:48 PM
      5h 57m
      1 stop
      ORD 6:45 PM
      Buffalo - Chicago | Mon, Nov 9 | Frontier Airlines
      CAD 156
      32% off
      CAD 231 CAD 156
    • BUF 2:34 PM
      6h 59m
      1 stop
      ORD 8:33 PM
      Buffalo - Chicago | Thu, Nov 19 | Frontier Airlines
      CAD 157
      32% off
      CAD 231 CAD 157
    • BUF 1:15 PM
      6h 22m
      1 stop
      ORD 6:37 PM
      Buffalo - Chicago | Wed, Dec 9 | Frontier Airlines
      CAD 159
      31% off
      CAD 231 CAD 159
    • BUF 6:35 PM
      7h 21m
      1 stop
      ORD 12:56 AM
      Buffalo - Chicago | Thu, Dec 31 | Frontier Airlines
      CAD 166
      28% off
      CAD 231 CAD 166
    • BUF 1:48 PM
      5h 57m
      1 stop
      ORD 6:45 PM
      Buffalo - Chicago | Fri, Nov 13 | Frontier Airlines
      CAD 168
      27% off
      CAD 231 CAD 168
    • BUF 1:00 PM
      17h 25m
      1 stop
      CHI 2:00 PM
      Buffalo - Chicago | Wed, Nov 4 | Normal Airline
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    • Cheapest nonstop
      BUF 11:26 AM
      2h 14m
      Nonstop
      ORD 12:40 PM
      Buffalo - Chicago | Tue, Nov 3 | American Airlines
      ORD 7:00 PM
      1h 37m
      Nonstop
      BUF 9:37 PM
      Chicago - Buffalo | Tue, Nov 3 | American Airlines
      CAD 335 CAD 454
      26% off
      26% off
      CAD 454 CAD 335
    • BUF 6:45 PM
      2h 14m
      Nonstop
      ORD 7:59 PM
      Buffalo - Chicago | Thu, Nov 12 | American Airlines
      MDW 7:50 AM
      1h 35m
      Nonstop
      BUF 10:25 AM
      Chicago - Buffalo | Sun, Nov 15 |
      CAD 358 CAD 454
      21% off
      21% off
      CAD 454 CAD 358
    • BUF 1:48 PM
      5h 57m
      1 stop
      ORD 6:45 PM
      Buffalo - Chicago | Mon, Nov 16 | Frontier Airlines
      MDW 6:08 AM
      6h 7m
      1 stop
      BUF 1:15 PM
      Chicago - Buffalo | Wed, Nov 18 | Frontier Airlines
      CAD 301 CAD 454
      34% off
      34% off
      CAD 454 CAD 301
    • BUF 1:03 PM
      12h 40m
      1 stop
      ORD 12:43 AM
      Buffalo - Chicago | Sat, Nov 21 | Frontier Airlines
      MDW 8:42 PM
      22h 42m
      1 stop
      BUF 8:24 PM
      Chicago - Buffalo | Mon, Nov 23 | Frontier Airlines
      CAD 313
      31% off
      CAD 454 CAD 313
    • BUF 1:15 PM
      9h 45m
      1 stop
      ORD 10:00 PM
      Buffalo - Chicago | Wed, Dec 16 | Frontier Airlines
      ORD 7:10 AM
      24h 42m
      1 stop
      BUF 8:52 AM
      Chicago - Buffalo | Thu, Dec 17 | Frontier Airlines
      CAD 318
      30% off
      CAD 454 CAD 318
    • BUF 1:15 PM
      9h 20m
      1 stop
      ORD 9:35 PM
      Buffalo - Chicago | Wed, Dec 2 | Frontier Airlines
      ORD 5:24 PM
      19h 11m
      1 stop
      BUF 1:35 PM
      Chicago - Buffalo | Thu, Dec 3 | Frontier Airlines
      CAD 319
      30% off
      CAD 454 CAD 319
    • BUF 2:34 PM
      6h 59m
      1 stop
      ORD 8:33 PM
      Buffalo - Chicago | Thu, Nov 19 | Frontier Airlines
      ORD 5:12 PM
      26h 12m
      1 stop
      BUF 8:24 PM
      Chicago - Buffalo | Mon, Nov 23 | Frontier Airlines
      CAD 333
      27% off
      CAD 454 CAD 333
    • BUF 8:02 PM
      13h 44m
      1 stop
      ORD 8:46 AM
      Buffalo - Chicago | Thu, Nov 12 | Frontier Airlines
      MDW 7:50 AM
      1h 35m
      Nonstop
      BUF 10:25 AM
      Chicago - Buffalo | Sun, Nov 15 |
      CAD 339
      25% off
      CAD 454 CAD 339
    • BUF 1:15 PM
      9h 27m
      1 stop
      ORD 9:42 PM
      Buffalo - Chicago | Fri, Dec 11 | Frontier Airlines
      MDW 8:35 PM
      23h 8m
      1 stop
      BUF 8:43 PM
      Chicago - Buffalo | Fri, Dec 18 | Frontier Airlines
      CAD 347
      24% off
      CAD 454 CAD 347
    • BUF 1:00 PM
      17h 25m
      1 stop
      CHI 2:00 PM
      Buffalo - Chicago | Wed, Nov 4 | Normal Airline
      CHI 3:00 PM
      6h
      Nonstop
      BUF 4:00 PM
      Chicago - Buffalo | Fri, Nov 6 | Normal Airline
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    • Cheapest nonstop
      BUF 6:25 AM
      2h 35m
      Nonstop
      ORD 8:00 AM
      Buffalo - Chicago | Sat, Dec 19 | American Airlines
      CAD 186 CAD 452
      59% off
      59% off
      CAD 452 CAD 186
    • BUF 7:57 AM
      2h 8m
      Nonstop
      ORD 9:05 AM
      Buffalo - Chicago | Tue, Nov 3 | American Airlines
      CAD 195 CAD 452
      56% off
      56% off
      CAD 452 CAD 195
    • BUF 11:26 AM
      2h 14m
      Nonstop
      ORD 12:40 PM
      Buffalo - Chicago | Mon, Nov 9 | American Airlines
      CAD 196 CAD 452
      56% off
      56% off
      CAD 452 CAD 196
    • BUF 6:45 PM
      2h 14m
      Nonstop
      ORD 7:59 PM
      Buffalo - Chicago | Wed, Dec 16 | American Airlines
      CAD 196
      56% off
      CAD 452 CAD 196
    • BUF 8:00 AM
      2h 5m
      Nonstop
      ORD 9:05 AM
      Buffalo - Chicago | Thu, Dec 10 | American Airlines
      CAD 196
      56% off
      CAD 452 CAD 196
    • BUF 8:00 AM
      2h 5m
      Nonstop
      ORD 9:05 AM
      Buffalo - Chicago | Tue, Dec 15 | American Airlines
      CAD 196
      56% off
      CAD 452 CAD 196
    • BUF 8:00 AM
      2h 5m
      Nonstop
      ORD 9:05 AM
      Buffalo - Chicago | Thu, Dec 3 | American Airlines
      CAD 196
      56% off
      CAD 452 CAD 196
    • BUF 6:25 AM
      2h 35m
      Nonstop
      ORD 8:00 AM
      Buffalo - Chicago | Tue, Dec 22 | American Airlines
      CAD 223
      51% off
      CAD 452 CAD 223
    • BUF 11:26 AM
      2h 14m
      Nonstop
      ORD 12:40 PM
      Buffalo - Chicago | Wed, Nov 4 | American Airlines
      CAD 223
      51% off
      CAD 452 CAD 223
    • BUF 1:00 PM
      17h 25m
      1 stop
      CHI 2:00 PM
      Buffalo - Chicago | Wed, Nov 4 | Normal Airline
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    • Cheapest nonstop
      BUF 6:46 PM
      2h 14m
      Nonstop
      ORD 8:00 PM
      Buffalo - Chicago | Fri, Dec 4 | American Airlines
      CAD 181 CAD 231
      22% off
      22% off
      CAD 231 CAD 181
    • BUF 11:26 AM
      2h 32m
      Nonstop
      ORD 12:58 PM
      Buffalo - Chicago | Sat, Dec 5 | American Airlines
      CAD 182 CAD 231
      21% off
      21% off
      CAD 231 CAD 182
    • BUF 6:25 AM
      2h 35m
      Nonstop
      ORD 8:00 AM
      Buffalo - Chicago | Sat, Dec 19 | American Airlines
      CAD 186 CAD 283
      34% off
      34% off
      CAD 283 CAD 186
    • BUF 7:57 AM
      2h 8m
      Nonstop
      ORD 9:05 AM
      Buffalo - Chicago | Tue, Nov 3 | American Airlines
      CAD 195
      31% off
      CAD 283 CAD 195
    • BUF 11:26 AM
      2h 14m
      Nonstop
      ORD 12:40 PM
      Buffalo - Chicago | Mon, Nov 9 | American Airlines
      CAD 196
      31% off
      CAD 283 CAD 196
    • BUF 6:45 PM
      2h 14m
      Nonstop
      ORD 7:59 PM
      Buffalo - Chicago | Wed, Dec 16 | American Airlines
      CAD 196
      31% off
      CAD 283 CAD 196
    • BUF 8:00 AM
      2h 5m
      Nonstop
      ORD 9:05 AM
      Buffalo - Chicago | Thu, Dec 10 | American Airlines
      CAD 196
      31% off
      CAD 283 CAD 196
    • BUF 6:46 PM
      2h 14m
      Nonstop
      ORD 8:00 PM
      Buffalo - Chicago | Mon, Dec 7 | American Airlines
      CAD 196
      31% off
      CAD 283 CAD 196
    • BUF 8:00 AM
      2h 5m
      Nonstop
      ORD 9:05 AM
      Buffalo - Chicago | Thu, Dec 3 | American Airlines
      CAD 196
      31% off
      CAD 283 CAD 196
    • BUF 1:00 PM
      17h 25m
      1 stop
      CHI 2:00 PM
      Buffalo - Chicago | Wed, Nov 4 | Normal Airline
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    • Cheapest nonstop
      BUF 7:57 AM
      2h 8m
      Nonstop
      ORD 9:05 AM
      Buffalo - Chicago | Tue, Nov 3 | American Airlines
      CAD 195 CAD 459
      57% off
      57% off
      CAD 459 CAD 195
    • BUF 11:26 AM
      2h 14m
      Nonstop
      ORD 12:40 PM
      Buffalo - Chicago | Mon, Nov 9 | American Airlines
      CAD 196 CAD 459
      56% off
      56% off
      CAD 459 CAD 196
    • BUF 11:26 AM
      2h 14m
      Nonstop
      ORD 12:40 PM
      Buffalo - Chicago | Wed, Nov 4 | American Airlines
      CAD 223 CAD 459
      51% off
      51% off
      CAD 459 CAD 223
    • BUF 7:57 AM
      2h 8m
      Nonstop
      ORD 9:05 AM
      Buffalo - Chicago | Thu, Nov 5 | American Airlines
      CAD 223
      51% off
      CAD 459 CAD 223
    • BUF 6:46 PM
      2h 14m
      Nonstop
      ORD 8:00 PM
      Buffalo - Chicago | Sat, Nov 7 | American Airlines
      CAD 223
      51% off
      CAD 459 CAD 223
    • BUF 6:46 PM
      2h 14m
      Nonstop
      ORD 8:00 PM
      Buffalo - Chicago | Fri, Nov 6 | American Airlines
      CAD 347
      24% off
      CAD 459 CAD 347
    • BUF 6:45 PM
      2h 14m
      Nonstop
      ORD 7:59 PM
      Buffalo - Chicago | Sun, Nov 8 | American Airlines
      CAD 347
      24% off
      CAD 459 CAD 347
    • BUF 5:13 AM
      5h 3m
      1 stop
      ORD 9:16 AM
      Buffalo - Chicago | Thu, Nov 5 | American Airlines
      CAD 237
      48% off
      CAD 459 CAD 237
    • BUF 1:48 PM
      5h 57m
      1 stop
      ORD 6:45 PM
      Buffalo - Chicago | Fri, Nov 6 | Frontier Airlines
      CAD 258
      44% off
      CAD 459 CAD 258
    • BUF 1:00 PM
      17h 25m
      1 stop
      CHI 2:00 PM
      Buffalo - Chicago | Wed, Nov 4 | Normal Airline
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    • BUF 1:53 PM
      2h 2m
      Nonstop
      ORD 2:55 PM
      Buffalo - Chicago | Wed, Nov 18 | United Airlines
      CAD 286 CAD 1,164
      75% off
      75% off
      CAD 1,164 CAD 286
    • BUF 1:53 PM
      2h 2m
      Nonstop
      ORD 2:55 PM
      Buffalo - Chicago | Wed, Nov 4 | United Airlines
      CAD 286 CAD 1,164
      75% off
      75% off
      CAD 1,164 CAD 286
    • BUF 1:53 PM
      2h 2m
      Nonstop
      ORD 2:55 PM
      Buffalo - Chicago | Mon, Dec 7 | United Airlines
      CAD 331 CAD 1,164
      72% off
      72% off
      CAD 1,164 CAD 331
    • BUF 1:53 PM
      2h 2m
      Nonstop
      ORD 2:55 PM
      Buffalo - Chicago | Tue, Dec 15 | United Airlines
      CAD 332
      71% off
      CAD 1,164 CAD 332
    • BUF 1:53 PM
      2h 2m
      Nonstop
      ORD 2:55 PM
      Buffalo - Chicago | Wed, Nov 11 | United Airlines
      CAD 342
      71% off
      CAD 1,164 CAD 342
    • BUF 10:30 AM
      2h 2m
      Nonstop
      ORD 11:32 AM
      Buffalo - Chicago | Tue, Dec 8 | United Airlines
      CAD 347
      70% off
      CAD 1,164 CAD 347
    • BUF 1:53 PM
      2h 2m
      Nonstop
      ORD 2:55 PM
      Buffalo - Chicago | Sat, Dec 12 | United Airlines
      CAD 347
      70% off
      CAD 1,164 CAD 347
    • BUF 1:53 PM
      2h 2m
      Nonstop
      ORD 2:55 PM
      Buffalo - Chicago | Tue, Nov 24 | United Airlines
      CAD 358
      69% off
      CAD 1,164 CAD 358
    • BUF 1:53 PM
      2h 2m
      Nonstop
      ORD 2:55 PM
      Buffalo - Chicago | Sun, Dec 13 | United Airlines
      CAD 375
      68% off
      CAD 1,164 CAD 375
    • BUF 1:00 PM
      17h 25m
      1 stop
      CHI 2:00 PM
      Buffalo - Chicago | Wed, Nov 4 | Normal Airline
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Displayed flight fares from Buffalo to Chicago are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Which airline offers the cheapest flights from Buffalo Niagara International Airport to O'Hare International Airport?

The cheapest airline flying from Buffalo Niagara International Airport to O'Hare International Airport is Frontier Airlines (from CAD 145) among 4 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Frontier Airlines
From CAD 145
Delta Air Lines
From CAD 180
American Airlines
From CAD 181
United Airlines
From CAD 226

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What is the flight schedule from Buffalo Niagara International Airport to O'Hare International Airport?

Check the schedule for flights from Buffalo to Chicago and find the flight that best matches your travel plans.

Flight info.
Departure
Arrival
Weekly Schedule

  1. AA2359

    Buffalo Niagara International Airport

    7:55 AM

    BUF

    2h 10m

    9:05 AM

    ORD

    S M T W T F S
    Search

  2. AA2202

    Buffalo Niagara International Airport

    6:45 PM

    BUF

    2h 14m

    7:59 PM

    ORD

    S M T W T F S
    Search

  3. AA4780

    Buffalo Niagara International Airport

    11:24 AM

    BUF

    2h 5m

    12:29 PM

    ORD

    S M T W T F S
    Search

  4. F91407

    Buffalo Niagara International Airport

    4:54 PM

    BUF

    2h 35m

    Nonstop

    7:29 PM

    ATL

    S - T - T - -
    Search

  5. F91595

    Hartsfield–Jackson Atlanta International Airport

    5:15 PM

    ATL

    2h 30m

    Nonstop

    6:45 PM

    ORD

    S M T W T F S

  6. DL5296

    Buffalo Niagara International Airport

    3:53 PM

    BUF

    1h 37m

    Nonstop

    5:30 PM

    JFK

    S M T W T F S
    Search

  7. DL5611

    John F. Kennedy International Airport

    7:36 PM

    JFK

    3h

    Nonstop

    9:36 PM

    ORD

    S - - - - - -

  8. F91691

    Buffalo Niagara International Airport

    9:20 PM

    BUF

    2h 49m

    Nonstop

    12:09 AM

    MCO

    - - - W - - S
    Search

  9. F91349

    Orlando International Airport

    10:57 PM

    MCO

    3h 11m

    Nonstop

    1:08 AM

    ORD

    - - - - - F -

  10. F91691

    Buffalo Niagara International Airport

    9:20 PM

    BUF

    2h 49m

    Nonstop

    12:09 AM

    MCO

    - - - W - - S
    Search

  11. F93043

    Orlando International Airport

    6:30 AM

    MCO

    3h 16m

    Nonstop

    8:46 AM

    ORD

    S - - W T - S
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About Buffalo Niagara International Airport and O'Hare International Airport

Learn about Buffalo Niagara International Airport (BUF) and O'Hare International Airport (ORD) — including location, terminals, transportation, and travel tips.

Flight distance 760.5 km
Cheapest one-way ticket price CAD 145
Cheapest return ticket price CAD 301

FAQs for Buffalo Niagara International Airport to O'Hare International Airport Flights

  • How long is the flight from Buffalo Niagara International Airport to O'Hare International Airport?

    Buffalo Niagara International Airport to O'Hare International Airport takes about 1 hour 26 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 7 daily flights from Buffalo Niagara International Airport (BUF) to O'Hare International Airport (ORD).
  • The earliest flight from Buffalo Niagara International Airport to O'Hare International Airport departs at 06:30, and the last departs at 17:58, with about 10 flights per day. Flight times may change, so please check the latest departure and arrival times before you travel.
  • The route from Buffalo Niagara International Airport (BUF) to O'Hare International Airport (ORD) is quite popular. Without considering departure times or holidays, tickets cost around CAD 402 in November, the most expensive month to book this route.
    • The distance from O'Hare International Airport to downtown is about 25 km. It takes about 40 minutes by taxi.
    • The distance from Midway International Airport to downtown is about 14 km. It takes about 30 minutes by taxi.
  • The closest airport to O'Hare International Airport (ORD) is Midway International Airport. The distance is around 25 km.
  • American Airlines is a very popular airline operating an average of 1708 flights per month.
  • One-way flights from Buffalo Niagara International Airport to O'Hare International Airport currently start from CAD 145, and round-trip fares start from CAD 301. The current lowest fare is a Frontier Airlines flight departing on Sat, Nov 21; prices may vary depending on availability.
  • Yes. United Airlines and American Airlines operate direct flights from Buffalo Niagara International Airport to O'Hare International Airport, with an average flight time of 1 hour 18 minutes, and around 49 weekly flights. Actual flight frequency may vary by season.
  • Based on Trip.com flight data for departures within the next 30 days with at most one stop, the average one-way price from Buffalo Niagara International Airport to O'Hare International Airport is CAD 321. Prices may vary depending on the departure date, airline, and availability.
  • Buffalo Niagara International Airport to O'Hare International Airport operates around 49 weekly flights, mainly by United Airlines and American Airlines. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Enter Buffalo Niagara International Airport and O'Hare International Airport, select your departure date and number of passengers, then compare flights by price, flight duration, and baggage allowance. Once you've chosen a fare, review the change and refund rules, fill in passenger details, and pay to receive your booking confirmation.

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Note: Prices shown on this page are the lowest estimated prices found in the last 24 hours and include all taxes and fees.

Book with no extra fees

Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are clearly shown before payment. Charges for checked baggage, onboard meals, Wi-Fi, and other optional services may also appear in the flight cards where applicable.

Real-time pricing updates

Prices, availability, and travel information on this page have been updated within the last 24 hours, and for many routes the data may refresh in real time. The more popular the route, the more accurate and up-to-date the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.