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Buffalo Niagara International Airport to Seattle flight

Explore the cheapest one-way and round-trip flights from Buffalo Niagara International Airport to Seattle over the next 90 days, with one-way fares from $151 and round-trip from $299. Based on Trip.com's latest 7-day flight data.

      • BUF 5:20 PM
        9h 32m
        1 stop
        SEA 11:52 PM
        Buffalo - Seattle | Thu, Nov 19 | Delta Air Lines
        SEA 11:10 PM
        7h 11m
        1 stop
        BUF 8:21 AM
        Seattle - Buffalo | Mon, Nov 23 | Delta Air Lines
        $299 $551
        46% off
        46% off
        $551 $299
      • BUF 3:53 PM
        10h 27m
        1 stop
        SEA 11:20 PM
        Buffalo - Seattle | Mon, Oct 12 | Delta Air Lines
        SEA 11:05 PM
        6h 19m
        1 stop
        BUF 8:24 AM
        Seattle - Buffalo | Mon, Oct 19 | Delta Air Lines
        $302 $551
        45% off
        45% off
        $551 $302
      • BUF 7:59 AM
        7h 51m
        1 stop
        SEA 12:50 PM
        Buffalo - Seattle | Mon, Oct 19 | American Airlines
        SEA 6:18 AM
        8h
        1 stop
        BUF 5:18 PM
        Seattle - Buffalo | Mon, Oct 26 | American Airlines
        $324 $551
        41% off
        41% off
        $551 $324
      • BUF 7:00 AM
        11h 21m
        1 stop
        SEA 3:21 PM
        Buffalo - Seattle | Sat, Nov 28 | Delta Air Lines
        SEA 11:10 PM
        6h 11m
        1 stop
        BUF 8:21 AM
        Seattle - Buffalo | Mon, Nov 30 | Delta Air Lines
        $349
        37% off
        $551 $349
      • BUF 7:00 AM
        11h 21m
        1 stop
        SEA 3:21 PM
        Buffalo - Seattle | Mon, Nov 2 | Delta Air Lines
        SEA 10:35 PM
        9h 41m
        1 stop
        BUF 11:16 AM
        Seattle - Buffalo | Wed, Nov 4 | Delta Air Lines
        $356
        35% off
        $551 $356
      • BUF 12:15 PM
        9h 20m
        1 stop
        SEA 6:35 PM
        Buffalo - Seattle | Sun, Nov 29 | Delta Air Lines
        SEA 11:10 PM
        6h 11m
        1 stop
        BUF 8:21 AM
        Seattle - Buffalo | Mon, Nov 30 | Delta Air Lines
        $365
        34% off
        $551 $365
      • BUF 5:50 AM
        9h 37m
        1 stop
        SEA 12:27 PM
        Buffalo - Seattle | Fri, Nov 20 | American Airlines
        SEA 5:10 AM
        7h 40m
        1 stop
        BUF 3:50 PM
        Seattle - Buffalo | Fri, Nov 27 | American Airlines
        $378
        31% off
        $551 $378
      • BUF 9:04 AM
        8h 45m
        1 stop
        SEA 2:49 PM
        Buffalo - Seattle | Sat, Oct 24 | Delta Air Lines
        SEA 11:50 AM
        9h 9m
        1 stop
        BUF 11:59 PM
        Seattle - Buffalo | Fri, Oct 30 | Delta Air Lines
        $384
        30% off
        $551 $384
      • BUF 12:56 PM
        10h 11m
        1 stop
        SEA 8:07 PM
        Buffalo - Seattle | Sat, Oct 24 | American Airlines
        SEA 10:48 PM
        8h 26m
        1 stop
        BUF 10:14 AM
        Seattle - Buffalo | Fri, Oct 30 | American Airlines
        $393
        28% off
        $551 $393
      • BUF 8:00 AM
        9h 17m
        1 stop
        SEA 2:17 PM
        Buffalo - Seattle | Sun, Nov 8 | American Airlines
        SEA 6:15 AM
        8h 46m
        1 stop
        BUF 6:01 PM
        Seattle - Buffalo | Thu, Nov 12 | American Airlines
        $396
        28% off
        $551 $396
      • BUF 3:53 PM
        9h 12m
        1 stop
        SEA 10:05 PM
        Buffalo - Seattle | Fri, Nov 6 | Delta Air Lines
        SEA 6:00 AM
        6h 13m
        1 stop
        BUF 3:13 PM
        Seattle - Buffalo | Tue, Nov 10 | Delta Air Lines
        $401
        27% off
        $551 $401
      • BUF 12:55 PM
        8h 40m
        1 stop
        SEA 6:35 PM
        Buffalo - Seattle | Thu, Nov 19 | American Airlines
        SEA 6:00 AM
        10h 3m
        1 stop
        BUF 7:03 PM
        Seattle - Buffalo | Mon, Nov 23 | American Airlines
        $402
        27% off
        $551 $402
      • BUF 1:00 PM
        17h 25m
        1 stop
        SEA 2:00 PM
        Buffalo - Seattle | Thu, Oct 8 | Normal Airline
        SEA 3:00 PM
        6h
        Nonstop
        BUF 4:00 PM
        Seattle - Buffalo | Sat, Oct 10 | Normal Airline
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      • BUF 3:58 PM
        11h 1m
        1 stop
        SEA 11:59 PM
        Buffalo - Seattle | Sat, Oct 17 | Delta Air Lines
        $151 $285
        47% off
        47% off
        $285 $151
      • BUF 5:45 PM
        8h 11m
        1 stop
        SEA 10:56 PM
        Buffalo - Seattle | Sat, Oct 17 | United Airlines
        $154 $285
        46% off
        46% off
        $285 $154
      • BUF 7:00 AM
        11h 10m
        1 stop
        SEA 3:10 PM
        Buffalo - Seattle | Mon, Oct 26 | Delta Air Lines
        $166 $285
        42% off
        42% off
        $285 $166
      • BUF 7:15 AM
        10h 36m
        1 stop
        SEA 2:51 PM
        Buffalo - Seattle | Mon, Oct 26 | American Airlines
        $170
        40% off
        $285 $170
      • BUF 6:20 AM
        7h 6m
        1 stop
        SEA 10:26 AM
        Buffalo - Seattle | Sun, Oct 25 | Delta Air Lines
        $182
        36% off
        $285 $182
      • BUF 1:08 PM
        10h 57m
        1 stop
        SEA 9:05 PM
        Buffalo - Seattle | Sun, Oct 25 | American Airlines
        $186
        35% off
        $285 $186
      • BUF 2:51 PM
        11h 6m
        1 stop
        SEA 10:57 PM
        Buffalo - Seattle | Sat, Oct 10 | American Airlines
        $189
        34% off
        $285 $189
      • BUF 4:00 PM
        8h 40m
        1 stop
        SEA 9:40 PM
        Buffalo - Seattle | Mon, Oct 26 | Hahn Air
        $191
        33% off
        $285 $191
      • BUF 3:56 PM
        10h 14m
        1 stop
        SEA 11:10 PM
        Buffalo - Seattle | Fri, Nov 6 | American Airlines
        $191
        33% off
        $285 $191
      • BUF 7:59 AM
        9h 52m
        1 stop
        SEA 2:51 PM
        Buffalo - Seattle | Sat, Oct 17 | American Airlines
        $202
        28% off
        $285 $202
      • BUF 2:20 PM
        13h 15m
        1 stop
        SEA 12:35 AM
        Buffalo - Seattle | Sun, Oct 25 | Hahn Air
        $204
        28% off
        $285 $204
      • BUF 1:11 PM
        11h 11m
        1 stop
        SEA 9:22 PM
        Buffalo - Seattle | Sun, Nov 8 | American Airlines
        $208
        27% off
        $285 $208
      • BUF 1:00 PM
        17h 25m
        1 stop
        SEA 2:00 PM
        Buffalo - Seattle | Thu, Oct 8 | Normal Airline
        Find more flights
        Find more flights

Displayed flight fares from Buffalo Niagara International Airport to Seattle are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Which airlines are the most popular for Buffalo Niagara International Airport to Seattle flights?

See which airlines fly from Buffalo Niagara International Airport to Seattle. Find the airline that best meets your travel needs by comparing prices and treat yourself to an enjoyable journey.
Delta Air Lines logo Delta Air Lines

Flight Schedule from Buffalo Niagara International Airport to Seattle

Check the schedule for flights from Buffalo Niagara International Airport to Seattle and find the flight that best matches your travel plans.

Flight info.
Departure
Arrival
Weekly Schedule

  1. DL2898

    Buffalo Niagara International Airport

    6:25 AM

    BUF

    1h 19m

    Nonstop

    7:44 AM

    DTW

    S M T W T F S
    Search

  2. DL734

    Detroit Metropolitan Wayne County Airport

    8:25 AM

    DTW

    5h 17m

    Nonstop

    10:42 AM

    SEA

    S M T W T F S

  3. UA2747

    Buffalo Niagara International Airport

    5:50 PM

    BUF

    1h 48m

    Nonstop

    6:38 PM

    ORD

    S M T W T F S
    Search

  4. UA2211

    O'Hare Intl. Airport

    8:09 PM

    ORD

    4h 44m

    Nonstop

    10:53 PM

    SEA

    S M T W T F S

  5. UA4291

    Buffalo Niagara International Airport

    2:52 PM

    BUF

    1h 35m

    Nonstop

    4:27 PM

    IAD

    S M T W T - S
    Search

  6. UA1128

    Dulles International Airport

    5:55 PM

    IAD

    6h 7m

    Nonstop

    9:02 PM

    SEA

    S M T W T F S

  7. AS6276

    Buffalo Niagara International Airport

    5:18 AM

    BUF

    1h 45m

    Nonstop

    7:03 AM

    DCA

    S M T W T F S
    Search

  8. AS001

    Ronald Reagan Washington National Airport

    8:00 AM

    DCA

    5h 58m

    Nonstop

    10:58 AM

    SEA

    S M T W T F S

  9. UA543

    Buffalo Niagara International Airport

    7:00 AM

    BUF

    2h

    Nonstop

    8:00 AM

    ORD

    S M T W T F S
    Search

  10. UA2099

    O'Hare Intl. Airport

    8:45 AM

    ORD

    4h 42m

    Nonstop

    11:27 AM

    SEA

    S M T W T F S

  11. DL2266

    Buffalo Niagara International Airport

    5:24 PM

    BUF

    2h 25m

    Nonstop

    7:49 PM

    ATL

    S M T W T F S
    Search

  12. DL714

    Hartsfield–Jackson Atlanta International Airport

    6:10 PM

    ATL

    5h 36m

    Nonstop

    8:46 PM

    SEA

    S M T W T F S

  13. DL3847

    Buffalo Niagara International Airport

    3:53 PM

    BUF

    1h 16m

    Nonstop

    5:09 PM

    DTW

    S M T W T F S
    Search

  14. DL565

    Detroit Metropolitan Wayne County Airport

    7:55 PM

    DTW

    5h 10m

    Nonstop

    10:05 PM

    SEA

    S M T W T F S

  15. AA1195

    Buffalo Niagara International Airport

    7:59 AM

    BUF

    2h 11m

    Nonstop

    9:10 AM

    ORD

    S M T W T F S
    Search

  16. AA1476

    O'Hare Intl. Airport

    11:34 AM

    ORD

    4h 43m

    Nonstop

    2:17 PM

    SEA

    S M T W T F S

  17. DL3848

    Buffalo Niagara International Airport

    12:15 PM

    BUF

    1h 15m

    Nonstop

    1:30 PM

    DTW

    S M T W - F -
    Search

  18. DL944

    Detroit Metropolitan Wayne County Airport

    4:35 PM

    DTW

    5h 3m

    Nonstop

    6:38 PM

    SEA

    S M T W T F S

  19. AA1204

    Buffalo Niagara International Airport

    6:21 AM

    BUF

    1h 59m

    Nonstop

    8:20 AM

    CLT

    S M T W T F S
    Search

  20. AA1920

    Charlotte Douglas International Airport

    9:27 AM

    CLT

    5h 51m

    Nonstop

    12:18 PM

    SEA

    S M T W T F S
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What to know about flights from Buffalo Niagara International Airport to Seattle?

Cheapest one-way flight price $170
Off-season for travel September
Peak season for travel July

FAQs for Buffalo Niagara International Airport to Seattle Flights

  • When is peak season for travel to Seattle?

    ؜The peak travel time for visiting Seattle is October. During this time, flights from Buffalo Niagara International Airport to Seattle are the most expensive. Cheap tickets can still be booked on Trip.com.
  • Flights from Buffalo Niagara International Airport (BUF) to Seattle-Tacoma International Airport (SEA) take around 8 hours 14 minutes.
  • United Airlines is a very popular airline operating an average of 1 flights per month.
  • The latest flight departs from Buffalo Niagara International Airport (BUF) at 18:03 and arrives in Seattle (SEA) at 22:22.
    • The distance from Seattle-Tacoma International Airport to downtown is about 17 km. It takes about 30 minutes by taxi.
  • The cheapest one-way flight from Buffalo Niagara International Airport to Seattle currently starts from $151, with round-trip fares from $299. The lowest fare is offered by Delta Air Lines departing on Sat, Oct 17; prices are subject to availability.
  • Currently, multiple airlines offer flights from Buffalo Niagara International Airport to Seattle, including: American Airlines United Airlines Delta Air Lines The selected airlines are based on Trip.com user booking data from the past 90 days.
  • Based on Trip.com flight data for departures within the next 30 days, the average one-way fare from Buffalo Niagara International Airport to Seattle is $315, and the average round-trip fare is null. Prices may vary depending on the departure date, airline, and availability.

Popular Destinations

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

Book with no extra fees

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 25 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.