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Dulles International Airport to Buffalo Niagara International Airport flight
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Dulles International Airport to Buffalo Niagara International Airport Flights Info

Cheapest one-way
BHD 659
Frontier Airlines Frontier Airlines 5h 27m · 1 stop Thu, Nov 19
Select flight
Cheapest round-trip
BHD 966
Delta Air Lines Delta Air Lines 5h 27m · 2 stops Sat, Jan 2 - Sat, Jan 9
Select flight
Recommended airlines
Frontier Airlines Frontier AirlinesCheapest· From BHD 659 American Airlines American AirlinesMost booked

Explore the cheapest one-way and round-trip flights from Dulles International Airport to Buffalo Niagara International Airport over the next 90 days, with one-way fares from BHD 659 and round-trip from BHD 966. Based on Trip.com's latest 7-day flight data.

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    • Cheapest nonstop
      IAD 5:50 PM
      1h 29m
      Nonstop
      BUF 7:19 PM
      Washington D.C. - Buffalo | Wed, Dec 9 | United Airlines
      BUF 10:00 AM
      1h 28m
      Nonstop
      IAD 11:28 AM
      Buffalo - Washington D.C. | Wed, Dec 16 | United Airlines
      BHD 1,559 BHD 1,981
      21% off
      21% off
      BHD 1,981 BHD 1,559
    • IAD 5:49 PM
      1h 33m
      Nonstop
      BUF 7:22 PM
      Washington D.C. - Buffalo | Wed, Jan 6 | United Airlines
      BUF 9:55 AM
      1h 38m
      Nonstop
      IAD 11:33 AM
      Buffalo - Washington D.C. | Sat, Jan 9 | United Airlines
      BHD 1,604 BHD 1,981
      19% off
      19% off
      BHD 1,981 BHD 1,604
    • IAD 6:00 AM
      5h 27m
      1 stop
      BUF 11:27 AM
      Washington D.C. - Buffalo | Sat, Jan 2 | Delta Air Lines
      BUF 6:15 AM
      5h 44m
      1 stop
      IAD 11:59 AM
      Buffalo - Washington D.C. | Sat, Jan 9 | Delta Air Lines
      BHD 966 BHD 1,981
      51% off
      51% off
      BHD 1,981 BHD 966
    • IAD 6:00 AM
      5h 24m
      1 stop
      BUF 11:24 AM
      Washington D.C. - Buffalo | Fri, Dec 4 | Delta Air Lines
      BUF 6:10 AM
      4h 32m
      1 stop
      IAD 10:42 AM
      Buffalo - Washington D.C. | Tue, Dec 8 | Delta Air Lines
      BHD 983
      50% off
      BHD 1,981 BHD 983
    • IAD 4:50 PM
      6h 20m
      1 stop
      BUF 11:10 PM
      Washington D.C. - Buffalo | Wed, Dec 23 | Delta Air Lines
      BUF 3:20 PM
      6h 32m
      1 stop
      DCA 9:52 PM
      Buffalo - Washington D.C. | Wed, Dec 30 | Delta Air Lines
      BHD 1,233
      38% off
      BHD 1,981 BHD 1,233
    • IAD 11:30 AM
      3h 49m
      1 stop
      BUF 3:19 PM
      Washington D.C. - Buffalo | Sun, Dec 6 | Delta Air Lines
      BUF 12:06 PM
      5h 19m
      1 stop
      DCA 5:25 PM
      Buffalo - Washington D.C. | Sun, Dec 13 | Delta Air Lines
      BHD 1,234
      38% off
      BHD 1,981 BHD 1,234
    • IAD 6:00 AM
      5h 24m
      1 stop
      BUF 11:24 AM
      Washington D.C. - Buffalo | Sat, Dec 5 | Delta Air Lines
      BUF 12:06 PM
      6h 33m
      1 stop
      DCA 6:39 PM
      Buffalo - Washington D.C. | Wed, Dec 9 | Delta Air Lines
      BHD 1,234
      38% off
      BHD 1,981 BHD 1,234
    • IAD 6:00 AM
      5h 24m
      1 stop
      BUF 11:24 AM
      Washington D.C. - Buffalo | Sat, Dec 12 | Delta Air Lines
      BUF 7:40 PM
      3h 54m
      1 stop
      DCA 11:34 PM
      Buffalo - Washington D.C. | Tue, Dec 15 | Delta Air Lines
      BHD 1,234
      38% off
      BHD 1,981 BHD 1,234
    • IAD 7:40 AM
      5h 23m
      1 stop
      BUF 1:03 PM
      Washington D.C. - Buffalo | Sat, Nov 14 | Frontier Airlines
      BUF 9:20 PM
      23h 20m
      1 stop
      IAD 8:40 PM
      Buffalo - Washington D.C. | Sat, Nov 21 | Frontier Airlines
      BHD 1,382
      30% off
      BHD 1,981 BHD 1,382
    • WAS 1:00 PM
      17h 25m
      1 stop
      BUF 2:00 PM
      Washington D.C. - Buffalo | Sun, Nov 15 | Normal Airline
      BUF 3:00 PM
      6h
      Nonstop
      WAS 4:00 PM
      Buffalo - Washington D.C. | Tue, Nov 17 | Normal Airline
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    • Cheapest
      IAD 7:48 AM
      5h 27m
      1 stop
      BUF 1:15 PM
      Washington D.C. - Buffalo | Thu, Nov 19 | Frontier Airlines
      BHD 659 BHD 1,897
      65% off
      65% off
      BHD 1,897 BHD 659
    • IAD 10:33 PM
      13h 47m
      1 stop
      BUF 12:20 PM
      Washington D.C. - Buffalo | Fri, Dec 11 | Frontier Airlines
      BHD 672 BHD 1,897
      65% off
      65% off
      BHD 1,897 BHD 672
    • IAD 10:25 PM
      19h
      1 stop
      BUF 5:25 PM
      Washington D.C. - Buffalo | Sun, Dec 20 | Frontier Airlines
      BHD 808 BHD 1,897
      56% off
      56% off
      BHD 1,897 BHD 808
    • IAD 8:33 PM
      17h 2m
      1 stop
      BUF 1:35 PM
      Washington D.C. - Buffalo | Fri, Dec 4 | Frontier Airlines
      BHD 837
      56% off
      BHD 1,897 BHD 837
    • IAD 6:50 AM
      6h 9m
      1 stop
      BUF 12:59 PM
      Washington D.C. - Buffalo | Tue, Dec 1 | Frontier Airlines
      BHD 846
      55% off
      BHD 1,897 BHD 846
    • IAD 1:55 PM
      23h 13m
      1 stop
      BUF 1:08 PM
      Washington D.C. - Buffalo | Wed, Dec 30 | Frontier Airlines
      BHD 849
      55% off
      BHD 1,897 BHD 849
    • IAD 9:35 PM
      22h 49m
      1 stop
      BUF 8:24 PM
      Washington D.C. - Buffalo | Mon, Nov 23 | Frontier Airlines
      BHD 850
      55% off
      BHD 1,897 BHD 850
    • IAD 1:55 PM
      23h 13m
      1 stop
      BUF 1:08 PM
      Washington D.C. - Buffalo | Wed, Dec 23 | Frontier Airlines
      BHD 863
      55% off
      BHD 1,897 BHD 863
    • IAD 9:35 PM
      22h 49m
      1 stop
      BUF 8:24 PM
      Washington D.C. - Buffalo | Wed, Nov 25 | Frontier Airlines
      BHD 878
      54% off
      BHD 1,897 BHD 878
    • WAS 1:00 PM
      17h 25m
      1 stop
      BUF 2:00 PM
      Washington D.C. - Buffalo | Sun, Nov 15 | Normal Airline
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    • Cheapest nonstop
      IAD 12:46 PM
      1h 29m
      Nonstop
      BUF 2:15 PM
      Washington D.C. - Buffalo | Tue, Dec 22 | United Airlines
      BHD 1,440 BHD 1,897
      24% off
      24% off
      BHD 1,897 BHD 1,440
    • IAD 5:35 PM
      1h 30m
      Nonstop
      BUF 7:05 PM
      Washington D.C. - Buffalo | Tue, Dec 1 | United Airlines
      BHD 1,536 BHD 1,897
      19% off
      19% off
      BHD 1,897 BHD 1,536
    • IAD 5:50 PM
      1h 29m
      Nonstop
      BUF 7:19 PM
      Washington D.C. - Buffalo | Tue, Dec 8 | United Airlines
      BHD 1,917 BHD 2,367
      19% off
      19% off
      BHD 2,367 BHD 1,917
    • IAD 8:32 AM
      1h 22m
      Nonstop
      BUF 9:54 AM
      Washington D.C. - Buffalo | Mon, Nov 30 | United Airlines
      BHD 1,957
      19% off
      BHD 2,417 BHD 1,957
    • WAS 1:00 PM
      17h 25m
      1 stop
      BUF 2:00 PM
      Washington D.C. - Buffalo | Sun, Nov 15 | Normal Airline
      Find more flights
      Find more flights
    • Cheapest nonstop
      IAD 5:50 PM
      1h 29m
      Nonstop
      BUF 7:19 PM
      Washington D.C. - Buffalo | Tue, Dec 8 | United Airlines
      BHD 1,917 BHD 2,367
      19% off
      19% off
      BHD 2,367 BHD 1,917
    • IAD 11:30 AM
      3h 49m
      1 stop
      BUF 3:19 PM
      Washington D.C. - Buffalo | Wed, Dec 9 | Delta Air Lines
      BHD 1,777 BHD 2,367
      25% off
      25% off
      BHD 2,367 BHD 1,777
    • IAD 6:00 AM
      4h 13m
      1 stop
      BUF 10:13 AM
      Washington D.C. - Buffalo | Sat, Dec 12 | Delta Air Lines
      BHD 1,777 BHD 2,367
      25% off
      25% off
      BHD 2,367 BHD 1,777
    • IAD 11:30 AM
      3h 49m
      1 stop
      BUF 3:19 PM
      Washington D.C. - Buffalo | Thu, Dec 10 | Delta Air Lines
      BHD 1,780
      25% off
      BHD 2,367 BHD 1,780
    • IAD 11:30 AM
      3h 49m
      1 stop
      BUF 3:19 PM
      Washington D.C. - Buffalo | Mon, Dec 7 | Delta Air Lines
      BHD 1,813
      23% off
      BHD 2,367 BHD 1,813
    • IAD 11:30 AM
      3h 49m
      1 stop
      BUF 3:19 PM
      Washington D.C. - Buffalo | Tue, Dec 8 | Delta Air Lines
      BHD 1,843
      22% off
      BHD 2,367 BHD 1,843
    • IAD 11:30 AM
      3h 49m
      1 stop
      BUF 3:19 PM
      Washington D.C. - Buffalo | Thu, Dec 3 | Delta Air Lines
      BHD 1,905
      20% off
      BHD 2,367 BHD 1,905
    • WAS 1:00 PM
      17h 25m
      1 stop
      BUF 2:00 PM
      Washington D.C. - Buffalo | Sun, Nov 15 | Normal Airline
      Find more flights
      Find more flights
    • IAD 8:32 AM
      1h 22m
      Nonstop
      BUF 9:54 AM
      Washington D.C. - Buffalo | Mon, Nov 30 | United Airlines
      BHD 1,957 BHD 2,417
      19% off
      19% off
      BHD 2,417 BHD 1,957
    • IAD 12:46 PM
      1h 29m
      Nonstop
      BUF 2:15 PM
      Washington D.C. - Buffalo | Tue, Dec 22 | United Airlines
      BHD 1,440 BHD 1,897
      24% off
      24% off
      BHD 1,897 BHD 1,440
    • IAD 5:50 PM
      1h 29m
      Nonstop
      BUF 7:19 PM
      Washington D.C. - Buffalo | Tue, Dec 8 | United Airlines
      BHD 1,917 BHD 2,367
      19% off
      19% off
      BHD 2,367 BHD 1,917
    • IAD 5:35 PM
      1h 30m
      Nonstop
      BUF 7:05 PM
      Washington D.C. - Buffalo | Tue, Dec 1 | United Airlines
      BHD 1,536
      19% off
      BHD 1,897 BHD 1,536
    • IAD 7:48 AM
      5h 27m
      1 stop
      BUF 1:15 PM
      Washington D.C. - Buffalo | Thu, Nov 19 | Frontier Airlines
      BHD 659
      65% off
      BHD 1,897 BHD 659
    • IAD 7:32 AM
      5h 31m
      1 stop
      BUF 1:03 PM
      Washington D.C. - Buffalo | Sat, Nov 14 | Frontier Airlines
      BHD 944
      50% off
      BHD 1,897 BHD 944
    • IAD 6:50 AM
      6h 9m
      1 stop
      BUF 12:59 PM
      Washington D.C. - Buffalo | Tue, Dec 1 | Frontier Airlines
      BHD 846
      55% off
      BHD 1,897 BHD 846
    • IAD 6:50 AM
      6h 9m
      1 stop
      BUF 12:59 PM
      Washington D.C. - Buffalo | Sat, Nov 21 | Frontier Airlines
      BHD 955
      50% off
      BHD 1,897 BHD 955
    • IAD 7:32 AM
      6h 17m
      1 stop
      BUF 1:49 PM
      Washington D.C. - Buffalo | Fri, Nov 20 | Frontier Airlines
      BHD 943
      50% off
      BHD 1,897 BHD 943
    • WAS 1:00 PM
      17h 25m
      1 stop
      BUF 2:00 PM
      Washington D.C. - Buffalo | Sun, Nov 15 | Normal Airline
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Displayed flight fares from Washington D.C. to Buffalo 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 Dulles International Airport to Buffalo Niagara International Airport?

The cheapest airline flying from Dulles International Airport to Buffalo Niagara International Airport is Frontier Airlines (from BHD 659) among 2 carriers operating this route. Based on Trip.com's latest 7-day flight data.
American Airlines logo American Airlines Frontier Airlines logo Frontier Airlines Delta Air Lines logo Delta Air Lines United Airlines logo United Airlines Alaska Airlines logo Alaska Airlines
American Airlines logo American Airlines Jetblue Airways logo Jetblue Airways

What is the flight schedule from Dulles International Airport to Buffalo Niagara International Airport?

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

Flight info.
Departure
Arrival
Weekly Schedule

  1. UA4335

    Dulles International Airport

    12:35 PM

    IAD

    1h 11m

    1:46 PM

    BUF

    S - T W T F -
    Search

  2. UA4823

    Dulles International Airport

    5:40 PM

    IAD

    1h 29m

    7:09 PM

    BUF

    S - - W T - S
    Search

  3. F94707

    Dulles International Airport

    7:32 AM

    IAD

    2h 22m

    Nonstop

    9:54 AM

    ATL

    S M T W - F S
    Search

  4. F91408

    Hartsfield–Jackson Atlanta International Airport

    4:03 PM

    ATL

    2h 9m

    Nonstop

    6:12 PM

    BUF

    S - T W T - -

  5. AA5447

    Dulles International Airport

    6:01 PM

    IAD

    1h 38m

    Nonstop

    7:39 PM

    CLT

    S M T W T - S
    Search

  6. AA2429

    Charlotte Douglas International Airport

    8:50 PM

    CLT

    1h 47m

    Nonstop

    10:37 PM

    BUF

    S M T W T F S

  7. F91081

    Dulles International Airport

    6:07 PM

    IAD

    2h 20m

    Nonstop

    8:27 PM

    ATL

    - M - - T - -
    Search

  8. F91408

    Hartsfield–Jackson Atlanta International Airport

    4:03 PM

    ATL

    2h 9m

    Nonstop

    6:12 PM

    BUF

    S - T W T - -

  9. DL1354

    Dulles International Airport

    7:00 AM

    IAD

    2h

    Nonstop

    9:00 AM

    ATL

    S M T W T F S
    Search

  10. DL2050

    Hartsfield–Jackson Atlanta International Airport

    4:37 PM

    ATL

    2h 1m

    Nonstop

    6:38 PM

    BUF

    S M T W T - S

  11. F91081

    Dulles International Airport

    6:07 PM

    IAD

    2h 20m

    Nonstop

    8:27 PM

    ATL

    - M - - T - -
    Search

  12. DL2334

    Hartsfield–Jackson Atlanta International Airport

    9:54 PM

    ATL

    2h 1m

    Nonstop

    11:55 PM

    BUF

    S M T W T F S

  13. F93691

    Dulles International Airport

    10:57 PM

    IAD

    2h 4m

    Nonstop

    1:01 AM

    ATL

    - - - - T - -
    Search

  14. DL1384

    Hartsfield–Jackson Atlanta International Airport

    9:06 AM

    ATL

    2h

    Nonstop

    11:06 AM

    BUF

    S M T W T F S

  15. F93691

    Dulles International Airport

    10:57 PM

    IAD

    2h 4m

    Nonstop

    1:01 AM

    ATL

    - - - - T - -
    Search

  16. F91408

    Hartsfield–Jackson Atlanta International Airport

    4:03 PM

    ATL

    2h 9m

    Nonstop

    6:12 PM

    BUF

    S - T W T - -

  17. DL1354

    Dulles International Airport

    7:00 AM

    IAD

    2h

    Nonstop

    9:00 AM

    ATL

    S M T W T F S
    Search

  18. DL2334

    Hartsfield–Jackson Atlanta International Airport

    9:54 PM

    ATL

    2h 1m

    Nonstop

    11:55 PM

    BUF

    S M T W T F S
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FAQs for Dulles International Airport to Buffalo Niagara International Airport Flights

  • How long is the flight from Dulles International Airport to Buffalo Niagara International Airport?

    Dulles International Airport to Buffalo Niagara International Airport takes about 53 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 3 daily flights from Dulles International Airport (IAD) to Buffalo Niagara International Airport (BUF).
  • The earliest flight from Dulles International Airport to Buffalo Niagara International Airport departs at 08:32, and the last departs at 22:19, with about 9 flights per day. Flight times may change, so please check the latest departure and arrival times before you travel.
  • The route from Dulles International Airport (IAD) to Buffalo Niagara International Airport (BUF) is quite popular. Without considering departure times or holidays, tickets cost around BHD 2,444 in November, the most expensive month to book this route.
  • The earliest flight departs from Dulles International Airport (IAD) at 08:20 and arrives in Buffalo Niagara International Airport (BUF) at 09:43.
  • The latest flight departs from Dulles International Airport (IAD) at 17:30 and arrives in Buffalo Niagara International Airport (BUF) at 18:53.
  • United Airlines is a very popular airline operating an average of 817 flights per month.
  • One-way flights from Dulles International Airport to Buffalo Niagara International Airport currently start from BHD 659, and round-trip fares start from BHD 966. The current lowest fare is a Frontier Airlines flight departing on Thu, Nov 19; prices may vary depending on availability.
  • Yes. United Airlines operate direct flights from Dulles International Airport to Buffalo Niagara International Airport, with an average flight time of 49 minutes, and around 24 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 Dulles International Airport to Buffalo Niagara International Airport is BHD 2,136. Prices may vary depending on the departure date, airline, and availability.
  • Dulles International Airport to Buffalo Niagara International Airport operates around 24 weekly flights, mainly by United Airlines. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Enter Dulles International Airport and Buffalo Niagara 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 estimated lowest price and include all taxes and fees found in the last 24 hours.

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Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.