Trip.com
>
Flights
>
Flights to United States
>
Flights to New York State
>
Flights to Buffalo
>
Seattle to Buffalo flight
>
Seattle Tacoma Intl. Airport to Buffalo Niagara International Airport flight

Explore the cheapest one-way and round-trip flights from Seattle Tacoma Intl. Airport to Buffalo Niagara International Airport over the next 90 days, with one-way fares from $198 and round-trip from $375. Based on Trip.com's latest 7-day flight data.

    • SEA 11:15 PM
      9h 14m
      1 stop
      BUF 11:29 AM
      Seattle - Buffalo | Fri, Nov 13 | Delta Air Lines
      BUF 3:20 PM
      10h 40m
      1 stop
      SEA 11:00 PM
      Buffalo - Seattle | Mon, Nov 16 | Delta Air Lines
      $375 $605
      38% off
      38% off
      $605 $375
    • SEA 11:34 PM
      8h 14m
      1 stop
      BUF 10:48 AM
      Seattle - Buffalo | Fri, Nov 13 | American Airlines
      BUF 6:46 PM
      8h 49m
      1 stop
      SEA 12:35 AM
      Buffalo - Seattle | Mon, Nov 16 | American Airlines
      $378 $605
      38% off
      38% off
      $605 $378
    • SEA 11:10 PM
      9h 25m
      1 stop
      BUF 11:35 AM
      Seattle - Buffalo | Fri, Nov 6 | Delta Air Lines
      BUF 3:20 PM
      10h 40m
      1 stop
      SEA 11:00 PM
      Buffalo - Seattle | Mon, Nov 9 | Delta Air Lines
      $395 $605
      35% off
      35% off
      $605 $395
    • SEA 12:34 PM
      7h 10m
      1 stop
      BUF 10:44 PM
      Seattle - Buffalo | Fri, Nov 6 | American Airlines
      BUF 7:57 AM
      9h 23m
      1 stop
      SEA 2:20 PM
      Buffalo - Seattle | Mon, Nov 9 | American Airlines
      $398
      34% off
      $605 $398
    • SEA 11:15 PM
      7h 53m
      1 stop
      BUF 10:08 AM
      Seattle - Buffalo | Fri, Nov 6 | United Airlines
      BUF 3:20 PM
      10h 40m
      1 stop
      SEA 11:00 PM
      Buffalo - Seattle | Mon, Nov 9 | Delta Air Lines
      $448
      26% off
      $605 $448
    • SEA 11:14 PM
      9h 13m
      1 stop
      BUF 11:27 AM
      Seattle - Buffalo | Thu, Dec 24 | Delta Air Lines
      BUF 7:03 AM
      10h 54m
      1 stop
      SEA 2:57 PM
      Buffalo - Seattle | Wed, Dec 30 | American Airlines
      $451
      25% off
      $605 $451
    • SEA 10:56 PM
      7h 46m
      1 stop
      BUF 9:42 AM
      Seattle - Buffalo | Fri, Nov 13 | United Airlines
      BUF 3:20 PM
      10h 40m
      1 stop
      SEA 11:00 PM
      Buffalo - Seattle | Mon, Nov 16 | Delta Air Lines
      $463
      23% off
      $605 $463
    • SEA 11:30 AM
      8h 17m
      1 stop
      BUF 10:47 PM
      Seattle - Buffalo | Thu, Dec 24 | American Airlines
      BUF 7:03 AM
      10h 54m
      1 stop
      SEA 2:57 PM
      Buffalo - Seattle | Wed, Dec 30 | American Airlines
      $498
      18% off
      $605 $498
    • SEA 6:14 AM
      8h 51m
      1 stop
      BUF 6:05 PM
      Seattle - Buffalo | Mon, Nov 16 | American Airlines
      BUF 11:17 AM
      7h 42m
      1 stop
      SEA 3:59 PM
      Buffalo - Seattle | Mon, Nov 23 | American Airlines
      $508
      16% off
      $605 $508
    • SEA 1:00 PM
      17h 25m
      1 stop
      BUF 2:00 PM
      Seattle - Buffalo | Fri, Nov 6 | Normal Airline
      BUF 3:00 PM
      6h
      Nonstop
      SEA 4:00 PM
      Buffalo - Seattle | Sun, Nov 8 | Normal Airline
      Find more flights
      Find more flights
    • Cheapest
      SEA 6:09 AM
      8h 51m
      1 stop
      BUF 6:00 PM
      Seattle - Buffalo | Sun, Dec 6 | American Airlines
      $198 $389
      49% off
      49% off
      $389 $198
    • SEA 6:00 AM
      10h 3m
      1 stop
      BUF 7:03 PM
      Seattle - Buffalo | Sat, Nov 7 | American Airlines
      $226 $389
      42% off
      42% off
      $389 $226
    • SEA 10:52 PM
      8h 43m
      1 stop
      BUF 10:35 AM
      Seattle - Buffalo | Sun, Dec 6 | Delta Air Lines
      $246 $389
      37% off
      37% off
      $389 $246
    • SEA 6:00 AM
      6h 13m
      1 stop
      BUF 3:13 PM
      Seattle - Buffalo | Sat, Nov 7 | Delta Air Lines
      $256
      34% off
      $389 $256
    • SEA 10:56 PM
      7h 38m
      1 stop
      BUF 9:34 AM
      Seattle - Buffalo | Sun, Dec 6 | United Airlines
      $305
      22% off
      $389 $305
    • SEA 8:09 AM
      7h 56m
      1 stop
      BUF 7:05 PM
      Seattle - Buffalo | Sat, Nov 7 | United Airlines
      $305
      22% off
      $389 $305
    • SEA 7:18 AM
      11h 17m
      1 stop
      BUF 9:35 PM
      Seattle - Buffalo | Sat, Nov 7 | Alaska Airlines
      $317
      19% off
      $389 $317
    • SEA 11:59 PM
      7h 43m
      1 stop
      BUF 10:42 AM
      Seattle - Buffalo | Fri, Dec 4 | American Airlines
      $337
      13% off
      $389 $337
    • SEA 11:40 AM
      7h 6m
      1 stop
      BUF 9:46 PM
      Seattle - Buffalo | Sun, Dec 6 | Alaska Airlines
      $338
      13% off
      $389 $338
    • SEA 1:00 PM
      17h 25m
      1 stop
      BUF 2:00 PM
      Seattle - Buffalo | Fri, Nov 6 | Normal Airline
      Find more flights
      Find more flights
    • SEA 11:15 PM
      6h 5m
      1 stop
      BUF 8:20 AM
      Seattle - Buffalo | Mon, Nov 9 | Delta Air Lines
      $347 $496
      30% off
      30% off
      $496 $347
    • SEA 6:00 AM
      6h 14m
      1 stop
      BUF 3:14 PM
      Seattle - Buffalo | Fri, Nov 6 | Delta Air Lines
      $431 $496
      13% off
      13% off
      $496 $431
    • SEA 1:00 PM
      17h 25m
      1 stop
      BUF 2:00 PM
      Seattle - Buffalo | Fri, Nov 6 | Normal Airline
      Find more flights
      Find more flights
    • SEA 11:15 PM
      6h 5m
      1 stop
      BUF 8:20 AM
      Seattle - Buffalo | Mon, Nov 9 | Delta Air Lines
      $347 $496
      30% off
      30% off
      $496 $347
    • SEA 6:00 AM
      6h 14m
      1 stop
      BUF 3:14 PM
      Seattle - Buffalo | Fri, Nov 6 | Delta Air Lines
      $431 $496
      13% off
      13% off
      $496 $431
    • SEA 1:00 PM
      17h 25m
      1 stop
      BUF 2:00 PM
      Seattle - Buffalo | Fri, Nov 6 | Normal Airline
      Find more flights
      Find more flights
    • SEA 11:15 PM
      6h 5m
      1 stop
      BUF 8:20 AM
      Seattle - Buffalo | Mon, Nov 9 | Delta Air Lines
      $347 $448
      23% off
      23% off
      $448 $347
    • SEA 9:45 AM
      6h 11m
      1 stop
      BUF 6:56 PM
      Seattle - Buffalo | Fri, Nov 27 | Delta Air Lines
      $389 $448
      13% off
      13% off
      $448 $389
    • SEA 6:00 AM
      6h 13m
      1 stop
      BUF 3:13 PM
      Seattle - Buffalo | Sat, Nov 7 | Delta Air Lines
      $256 $389
      34% off
      34% off
      $389 $256
    • SEA 11:40 AM
      7h 6m
      1 stop
      BUF 9:46 PM
      Seattle - Buffalo | Sun, Dec 6 | Alaska Airlines
      $338
      13% off
      $389 $338
    • SEA 10:56 PM
      7h 38m
      1 stop
      BUF 9:34 AM
      Seattle - Buffalo | Sun, Dec 6 | United Airlines
      $305
      22% off
      $389 $305
    • SEA 11:59 PM
      7h 43m
      1 stop
      BUF 10:42 AM
      Seattle - Buffalo | Fri, Dec 4 | American Airlines
      $337
      13% off
      $389 $337
    • SEA 8:09 AM
      7h 56m
      1 stop
      BUF 7:05 PM
      Seattle - Buffalo | Sat, Nov 7 | United Airlines
      $305
      22% off
      $389 $305
    • SEA 10:52 PM
      8h 43m
      1 stop
      BUF 10:35 AM
      Seattle - Buffalo | Sun, Dec 6 | Delta Air Lines
      $246
      37% off
      $389 $246
    • SEA 6:09 AM
      8h 51m
      1 stop
      BUF 6:00 PM
      Seattle - Buffalo | Sun, Dec 6 | American Airlines
      $198
      49% off
      $389 $198
    • SEA 1:00 PM
      17h 25m
      1 stop
      BUF 2:00 PM
      Seattle - Buffalo | Fri, Nov 6 | Normal Airline
      Find more flights
      Find more flights

Displayed flight fares from Seattle 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 Seattle Tacoma Intl. Airport to Buffalo Niagara International Airport?

The cheapest airline flying from Seattle Tacoma Intl. Airport to Buffalo Niagara International Airport is American Airlines (from $198) among 6 carriers operating this route. Based on Trip.com's latest 7-day flight data.

American Airlines
From $198
Delta Air Lines
From $246
Frontier Airlines
From $264
Alaska Airlines
From $289
United Airlines
From $305
Hahn Air
From $359

Find more flights and airlines

What is the flight schedule from Seattle Tacoma Intl. Airport to Buffalo Niagara International Airport?

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

Flight info.
Departure
Arrival
Weekly Schedule

  1. DL810

    Seattle Tacoma Intl. Airport

    11:05 PM

    SEA

    4h 21m

    Nonstop

    6:26 AM

    DTW

    S M T W T F S
    Search

  2. DL3841

    Detroit Metropolitan Wayne County Airport

    7:10 AM

    DTW

    1h 16m

    Nonstop

    8:26 AM

    BUF

    - - - W T F S

  3. UA2618

    Seattle Tacoma Intl. Airport

    7:00 AM

    SEA

    4h

    Nonstop

    1:00 PM

    ORD

    S M T W T F S
    Search

  4. UA2226

    O'Hare Intl. Airport

    2:07 PM

    ORD

    1h 47m

    Nonstop

    4:54 PM

    BUF

    S M T W T - S

  5. AS429

    Seattle Tacoma Intl. Airport

    11:23 AM

    SEA

    4h 14m

    Nonstop

    5:37 PM

    ORD

    S M T W T F S
    Search

  6. AS6789

    O'Hare Intl. Airport

    9:05 PM

    ORD

    1h 44m

    Nonstop

    11:49 PM

    BUF

    S M T W T F S

  7. UA2614

    Seattle Tacoma Intl. Airport

    10:56 PM

    SEA

    4h 10m

    Nonstop

    5:06 AM

    ORD

    S M T W T F S
    Search

  8. UA4177

    O'Hare Intl. Airport

    7:00 AM

    ORD

    1h 46m

    Nonstop

    9:46 AM

    BUF

    S M T W T F S

  9. AA1559

    Seattle Tacoma Intl. Airport

    9:45 PM

    SEA

    4h 54m

    Nonstop

    5:39 AM

    CLT

    S M T W T F S
    Search

  10. AA1203

    Charlotte Douglas International Airport

    8:55 AM

    CLT

    1h 45m

    Nonstop

    10:40 AM

    BUF

    S M T W T F S

  11. AA294

    Seattle Tacoma Intl. Airport

    11:36 PM

    SEA

    4h 6m

    Nonstop

    5:42 AM

    ORD

    S M T W T F S
    Search

  12. AA4780

    O'Hare Intl. Airport

    8:03 AM

    ORD

    1h 50m

    Nonstop

    10:53 AM

    BUF

    S M T W T F S

  13. DL569

    Seattle Tacoma Intl. Airport

    6:00 AM

    SEA

    4h 53m

    Nonstop

    1:53 PM

    ATL

    S M T W T F S
    Search

  14. DL2050

    Hartsfield–Jackson Atlanta International Airport

    4:37 PM

    ATL

    2h 1m

    Nonstop

    6:38 PM

    BUF

    S M - - - - S

  15. DL452

    Seattle Tacoma Intl. Airport

    9:55 PM

    SEA

    5h 27m

    Nonstop

    6:22 AM

    JFK

    S M T W T F S
    Search

  16. DL5223

    John F Kennedy Intl. Airport

    8:56 AM

    JFK

    1h 42m

    Nonstop

    10:38 AM

    BUF

    S M T W T F S

  17. DL415

    Seattle Tacoma Intl. Airport

    11:15 AM

    SEA

    5h 36m

    Nonstop

    7:51 PM

    JFK

    S M T W T F S
    Search

  18. DL5264

    John F Kennedy Intl. Airport

    10:10 PM

    JFK

    1h 40m

    Nonstop

    11:50 PM

    BUF

    S M T W T F S

  19. AA707

    Seattle Tacoma Intl. Airport

    10:27 AM

    SEA

    4h 6m

    Nonstop

    4:33 PM

    DFW

    S M T W T - S
    Search

  20. AA2401

    Dallas Fort Worth International Airport

    6:55 PM

    DFW

    2h 58m

    Nonstop

    10:53 PM

    BUF

    S M T W T F S
Find more flights and airlines

About Seattle Tacoma Intl. Airport and Buffalo Niagara International Airport

Learn about Seattle Tacoma Intl. Airport (SEA) and Buffalo Niagara International Airport (BUF) — including location, terminals, transportation, and travel tips.

Flight distance 3,409.35 km
Cheapest one-way ticket price $198
Cheapest return ticket price $375

FAQs for Seattle Tacoma Intl. Airport to Buffalo Niagara International Airport Flights

  • How many daily flights are there from Seattle Tacoma Intl. Airport (SEA) to Buffalo Niagara International Airport (BUF)?

    There are around 1 daily flights from Seattle Tacoma Intl. Airport (SEA) to Buffalo Niagara International Airport (BUF).
  • The route from Seattle Tacoma Intl. Airport (SEA) to Buffalo Niagara International Airport (BUF) is quite popular. Without considering departure times or holidays, tickets cost around $485 in May, the most expensive month to book this route.
  • The earliest flight departs from Seattle Tacoma Intl. Airport (SEA) at 07:06 and arrives in Buffalo Niagara International Airport (BUF) at 16:38.
  • United Airlines is a very popular airline operating an average of 13 flights per month.
  • One-way flights from Seattle Tacoma Intl. Airport to Buffalo Niagara International Airport currently start from $198, and round-trip fares start from $375. The current lowest fare is a American Airlines flight departing on Sun, Dec 6; prices may vary depending on availability.
  • Based on Trip.com flight data for departures within the next 30 days with at most one stop, the average one-way price from Seattle Tacoma Intl. Airport to Buffalo Niagara International Airport is $328. Prices may vary depending on the departure date, airline, and availability.
  • Enter Seattle Tacoma Intl. 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.

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 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.