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Dulles International Airport to Buffalo Niagara International Airport flight

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 £68 and round-trip from £93. Based on Trip.com's latest 7-day flight data.

    • Cheapest nonstop
      IAD 08:32
      1h 22m
      Direct
      BUF 09:54
      Washington D.C. - Buffalo | Thu, Oct 29 | United Airlines
      BUF 19:52
      1h 26m
      Direct
      IAD 21:18
      Buffalo - Washington D.C. | Thu, Nov 5 | United Airlines
      £163 £538
      70% off
      70% off
      £538 £163
    • IAD 08:32
      1h 22m
      Direct
      BUF 09:54
      Washington D.C. - Buffalo | Wed, Nov 4 | United Airlines
      BUF 06:00
      1h 28m
      Direct
      DCA 07:28
      Buffalo - Washington D.C. | Wed, Nov 11 | United Airlines
      £173 £538
      68% off
      68% off
      £538 £173
    • IAD 08:05
      5h 10m
      1 stop
      BUF 13:15
      Washington D.C. - Buffalo | Wed, Nov 4 | Frontier Airlines
      BUF 14:00
      9h 43m
      1 stop
      IAD 23:43
      Buffalo - Washington D.C. | Wed, Nov 11 | Frontier Airlines
      £93 £538
      83% off
      83% off
      £538 £93
    • IAD 08:05
      5h 10m
      1 stop
      BUF 13:15
      Washington D.C. - Buffalo | Wed, Oct 28 | Frontier Airlines
      BUF 13:48
      9h 55m
      1 stop
      IAD 23:43
      Buffalo - Washington D.C. | Fri, Oct 30 | Frontier Airlines
      £120
      78% off
      £538 £120
    • IAD 17:13
      5h 25m
      1 stop
      BUF 22:38
      Washington D.C. - Buffalo | Tue, Nov 3 | Delta Air Lines
      BUF 06:00
      4h 22m
      1 stop
      IAD 10:22
      Buffalo - Washington D.C. | Tue, Nov 10 | Delta Air Lines
      £127
      76% off
      £538 £127
    • IAD 17:13
      6h 46m
      1 stop
      BUF 23:59
      Washington D.C. - Buffalo | Tue, Oct 27 | Delta Air Lines
      BUF 06:00
      4h 19m
      1 stop
      DCA 10:19
      Buffalo - Washington D.C. | Tue, Nov 3 | Delta Air Lines
      £127
      76% off
      £538 £127
    • IAD 07:48
      5h 27m
      1 stop
      BUF 13:15
      Washington D.C. - Buffalo | Wed, Nov 18 | Frontier Airlines
      BUF 13:03
      7h 37m
      1 stop
      IAD 20:40
      Buffalo - Washington D.C. | Sat, Nov 21 | Frontier Airlines
      £138
      74% off
      £538 £138
    • IAD 06:05
      5h 30m
      1 stop
      BUF 11:35
      Washington D.C. - Buffalo | Wed, Nov 4 | Delta Air Lines
      BUF 19:53
      3h 28m
      1 stop
      IAD 23:21
      Buffalo - Washington D.C. | Wed, Nov 11 | Delta Air Lines
      £141
      74% off
      £538 £141
    • IAD 17:16
      6h 42m
      1 stop
      BUF 23:58
      Washington D.C. - Buffalo | Wed, Nov 11 | Delta Air Lines
      BUF 12:00
      4h 33m
      1 stop
      DCA 16:33
      Buffalo - Washington D.C. | Wed, Nov 18 | Delta Air Lines
      £141
      74% off
      £538 £141
    • WAS 13:00
      17h 25m
      1 stop
      BUF 14:00
      Washington D.C. - Buffalo | Sun, Oct 25 | Normal Airline
      BUF 15:00
      6h
      Direct
      WAS 16:00
      Buffalo - Washington D.C. | Tue, Oct 27 | Normal Airline
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    • Cheapest
      IAD 21:16
      15h 2m
      1 stop
      BUF 12:18
      Washington D.C. - Buffalo | Mon, Nov 2 | Frontier Airlines
      £68 £220
      69% off
      69% off
      £220 £68
    • IAD 07:48
      5h 27m
      1 stop
      BUF 13:15
      Washington D.C. - Buffalo | Wed, Nov 18 | Frontier Airlines
      £74 £220
      66% off
      66% off
      £220 £74
    • IAD 08:05
      5h 10m
      1 stop
      BUF 13:15
      Washington D.C. - Buffalo | Wed, Nov 4 | Frontier Airlines
      £75 £220
      66% off
      66% off
      £220 £75
    • IAD 22:33
      13h 47m
      1 stop
      BUF 12:20
      Washington D.C. - Buffalo | Thu, Dec 10 | Frontier Airlines
      £76
      65% off
      £220 £76
    • IAD 21:06
      15h 57m
      1 stop
      BUF 13:03
      Washington D.C. - Buffalo | Sun, Nov 15 | Frontier Airlines
      £82
      63% off
      £220 £82
    • IAD 07:32
      6h 17m
      1 stop
      BUF 13:49
      Washington D.C. - Buffalo | Thu, Nov 19 | Frontier Airlines
      £89
      60% off
      £220 £89
    • IAD 08:05
      5h 10m
      1 stop
      BUF 13:15
      Washington D.C. - Buffalo | Wed, Oct 28 | Frontier Airlines
      £92
      57% off
      £220 £92
    • IAD 21:35
      22h 49m
      1 stop
      BUF 20:24
      Washington D.C. - Buffalo | Sun, Nov 22 | Frontier Airlines
      £96
      56% off
      £220 £96
    • IAD 21:35
      22h 49m
      1 stop
      BUF 20:24
      Washington D.C. - Buffalo | Tue, Nov 24 | Frontier Airlines
      £99
      55% off
      £220 £99
    • WAS 13:00
      17h 25m
      1 stop
      BUF 14:00
      Washington D.C. - Buffalo | Sun, Oct 25 | Normal Airline
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    • Cheapest nonstop
      IAD 17:15
      1h 11m
      Direct
      BUF 18:26
      Washington D.C. - Buffalo | Wed, Dec 2 | United Airlines
      £151 £220
      31% off
      31% off
      £220 £151
    • IAD 22:19
      1h 25m
      Direct
      BUF 23:44
      Washington D.C. - Buffalo | Sun, Nov 15 | United Airlines
      £154 £220
      30% off
      30% off
      £220 £154
    • IAD 17:50
      1h 29m
      Direct
      BUF 19:19
      Washington D.C. - Buffalo | Tue, Dec 8 | United Airlines
      £215 £383
      44% off
      44% off
      £383 £215
    • IAD 12:50
      1h 30m
      Direct
      BUF 14:20
      Washington D.C. - Buffalo | Sun, Oct 25 | United Airlines
      £250
      35% off
      £383 £250
    • IAD 12:50
      1h 30m
      Direct
      BUF 14:20
      Washington D.C. - Buffalo | Tue, Oct 27 | United Airlines
      £268
      30% off
      £383 £268
    • WAS 13:00
      17h 25m
      1 stop
      BUF 14:00
      Washington D.C. - Buffalo | Sun, Oct 25 | Normal Airline
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    • Cheapest nonstop
      IAD 17:50
      1h 29m
      Direct
      BUF 19:19
      Washington D.C. - Buffalo | Tue, Dec 8 | United Airlines
      £215 £393
      45% off
      45% off
      £393 £215
    • IAD 12:50
      1h 30m
      Direct
      BUF 14:20
      Washington D.C. - Buffalo | Sun, Oct 25 | United Airlines
      £250 £393
      36% off
      36% off
      £393 £250
    • IAD 12:50
      1h 30m
      Direct
      BUF 14:20
      Washington D.C. - Buffalo | Tue, Oct 27 | United Airlines
      £268 £393
      32% off
      32% off
      £393 £268
    • IAD 07:50
      5h 9m
      1 stop
      BUF 12:59
      Washington D.C. - Buffalo | Sat, Oct 24 | Frontier Airlines
      £130
      67% off
      £393 £130
    • IAD 10:57
      4h 16m
      1 stop
      BUF 15:13
      Washington D.C. - Buffalo | Mon, Oct 26 | Delta Air Lines
      £175
      55% off
      £393 £175
    • IAD 11:30
      3h 49m
      1 stop
      BUF 15:19
      Washington D.C. - Buffalo | Wed, Dec 9 | Delta Air Lines
      £200
      49% off
      £393 £200
    • IAD 06:00
      4h 13m
      1 stop
      BUF 10:13
      Washington D.C. - Buffalo | Sat, Dec 12 | Delta Air Lines
      £200
      49% off
      £393 £200
    • IAD 11:30
      3h 49m
      1 stop
      BUF 15:19
      Washington D.C. - Buffalo | Thu, Dec 10 | Delta Air Lines
      £200
      49% off
      £393 £200
    • IAD 11:30
      3h 49m
      1 stop
      BUF 15:19
      Washington D.C. - Buffalo | Mon, Dec 7 | Delta Air Lines
      £204
      48% off
      £393 £204
    • WAS 13:00
      17h 25m
      1 stop
      BUF 14:00
      Washington D.C. - Buffalo | Sun, Oct 25 | Normal Airline
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    • Cheapest nonstop
      IAD 12:50
      1h 30m
      Direct
      BUF 14:20
      Washington D.C. - Buffalo | Sun, Oct 25 | United Airlines
      £250 £393
      36% off
      36% off
      £393 £250
    • IAD 12:50
      1h 30m
      Direct
      BUF 14:20
      Washington D.C. - Buffalo | Tue, Oct 27 | United Airlines
      £268 £393
      32% off
      32% off
      £393 £268
    • IAD 07:50
      5h 9m
      1 stop
      BUF 12:59
      Washington D.C. - Buffalo | Sat, Oct 24 | Frontier Airlines
      £130 £393
      67% off
      67% off
      £393 £130
    • IAD 10:57
      4h 16m
      1 stop
      BUF 15:13
      Washington D.C. - Buffalo | Mon, Oct 26 | Delta Air Lines
      £175
      55% off
      £393 £175
    • IAD 06:15
      4h 33m
      1 stop
      BUF 10:48
      Washington D.C. - Buffalo | Fri, Oct 30 | American Airlines
      £275
      30% off
      £393 £275
    • WAS 13:00
      17h 25m
      1 stop
      BUF 14:00
      Washington D.C. - Buffalo | Sun, Oct 25 | Normal Airline
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    • IAD 17:15
      1h 11m
      Direct
      BUF 18:26
      Washington D.C. - Buffalo | Wed, Dec 2 | United Airlines
      £151 £220
      31% off
      31% off
      £220 £151
    • IAD 22:19
      1h 25m
      Direct
      BUF 23:44
      Washington D.C. - Buffalo | Sun, Nov 15 | United Airlines
      £154 £220
      30% off
      30% off
      £220 £154
    • IAD 17:50
      1h 29m
      Direct
      BUF 19:19
      Washington D.C. - Buffalo | Tue, Dec 8 | United Airlines
      £215 £383
      44% off
      44% off
      £383 £215
    • IAD 12:50
      1h 30m
      Direct
      BUF 14:20
      Washington D.C. - Buffalo | Sun, Oct 25 | United Airlines
      £250
      35% off
      £383 £250
    • IAD 12:50
      1h 30m
      Direct
      BUF 14:20
      Washington D.C. - Buffalo | Tue, Oct 27 | United Airlines
      £268
      30% off
      £383 £268
    • IAD 10:57
      4h 16m
      1 stop
      BUF 15:13
      Washington D.C. - Buffalo | Mon, Oct 26 | Delta Air Lines
      £175
      30% off
      £250 £175
    • IAD 08:05
      5h 10m
      1 stop
      BUF 13:15
      Washington D.C. - Buffalo | Wed, Nov 4 | Frontier Airlines
      £75
      66% off
      £220 £75
    • IAD 08:05
      5h 10m
      1 stop
      BUF 13:15
      Washington D.C. - Buffalo | Wed, Oct 28 | Frontier Airlines
      £92
      57% off
      £220 £92
    • IAD 07:48
      5h 27m
      1 stop
      BUF 13:15
      Washington D.C. - Buffalo | Wed, Nov 18 | Frontier Airlines
      £74
      66% off
      £220 £74
    • WAS 13:00
      17h 25m
      1 stop
      BUF 14:00
      Washington D.C. - Buffalo | Sun, Oct 25 | 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 £68) among 4 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Frontier Airlines
From £68
Delta Air Lines
From £116
United Airlines
From £151
American Airlines
From £157

Find more flights and airlines

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. UA4823

    Dulles International Airport

    17:15

    IAD

    1h 11m

    18:26

    BUF

    S - - W - - S
    Search

  2. UA4541

    Dulles International Airport

    22:18

    IAD

    1h 11m

    23:29

    BUF

    - - - W - - S
    Search

  3. F94707

    Dulles International Airport

    07:50

    IAD

    2h 4m

    Direct

    09:54

    ATL

    S M T W T F S
    Search

  4. F91408

    Hartsfield–Jackson Atlanta International Airport

    10:49

    ATL

    2h 10m

    Direct

    12:59

    BUF

    S - T - T F -

  5. F94355

    Dulles International Airport

    11:12

    IAD

    2h 26m

    Direct

    13:38

    MCO

    S M T W T F S
    Search

  6. F91692

    Orlando International Airport

    15:08

    MCO

    2h 44m

    Direct

    17:52

    BUF

    - - - W - - S

  7. DL1354

    Dulles International Airport

    07:00

    IAD

    2h

    Direct

    09:00

    ATL

    S M T W T F S
    Search

  8. DL2050

    Hartsfield–Jackson Atlanta International Airport

    16:37

    ATL

    2h 1m

    Direct

    18:38

    BUF

    S - - - - - S

  9. F94409

    Dulles International Airport

    21:06

    IAD

    2h 2m

    Direct

    23:08

    ATL

    S M T W T F S
    Search

  10. F91408

    Hartsfield–Jackson Atlanta International Airport

    10:49

    ATL

    2h 10m

    Direct

    12:59

    BUF

    S - T - T F -

  11. DL1354

    Dulles International Airport

    07:00

    IAD

    2h

    Direct

    09:00

    ATL

    S M T W T F S
    Search

  12. DL2334

    Hartsfield–Jackson Atlanta International Airport

    21:54

    ATL

    2h 1m

    Direct

    23:55

    BUF

    S M T W T F S

  13. DL1324

    Dulles International Airport

    11:10

    IAD

    1h 53m

    Direct

    13:03

    ATL

    S M T W T F S
    Search

  14. F91408

    Hartsfield–Jackson Atlanta International Airport

    10:49

    ATL

    2h 10m

    Direct

    12:59

    BUF

    S - T - T F -
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About Dulles International Airport and Buffalo Niagara International Airport

Learn about Dulles International Airport (IAD) and Buffalo Niagara International Airport (BUF) — including location, terminals, transportation, and travel tips.

Flight distance 456.08km
Cheapest one-way ticket price £68
Cheapest return ticket price £93

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 08:15, and the last departs at 22:24, with about 4 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 £302 in October, the most expensive month to book this route.
  • 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 £68, and round-trip fares start from £93. The current lowest fare is a Frontier Airlines flight departing on Mon, Nov 2; 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 £237. 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.

Find Cheap Flights with Trip.com

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

Book with no extra fees

Prices displayed on this page are all-inclusive (including taxes, fuel surcharges, civil aviation development fund, etc.), with all fees confirmed before payment. Fees for luggage, meals, Wi-Fi, 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 have been updated within the last 24 hours—sometimes even in real time. The more popular the route, the more accurate the data.

Change & Cancellation Policy

Trip.com shows the cancellation and change policies for each flight ticket during the booking process, including any fees and applicable conditions. Please check 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 according to the airline's ticket policy.
Cancellation/change due to a flight schedule change:
If the flight schedule has changed 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 visit the customer support pages.