Trip.com
>
Flights
>
Flights to United States
>
Flights to Washington
>
Flights to Seattle
>
San Francisco to Seattle flight
>
San Francisco International Airport to Seattle-Tacoma International Airport flight

Explore the cheapest one-way and round-trip flights from San Francisco International Airport to Seattle-Tacoma International Airport over the next 90 days, with one-way fares from THB 1,330 and round-trip from THB 2,980. Based on Trip.com's latest 7-day flight data.

    • Cheapest
      SFO 5:56 PM
      2h 28m
      Nonstop
      SEA 8:24 PM
      San Francisco - Seattle | Sat, Dec 12 | Delta Air Lines
      THB 1,330 THB 3,120
      56% off
      56% off
      THB 3,120 THB 1,330
    • SFO 8:59 PM
      2h 25m
      Nonstop
      SEA 11:24 PM
      San Francisco - Seattle | Tue, Dec 8 | Delta Air Lines
      THB 2,010 THB 3,120
      36% off
      36% off
      THB 3,120 THB 2,010
    • SFO 6:00 AM
      2h 18m
      Nonstop
      SEA 8:18 AM
      San Francisco - Seattle | Tue, Dec 8 | Delta Air Lines
      THB 2,010 THB 15,970
      87% off
      87% off
      THB 15,970 THB 2,010
    • SFO 10:38 AM
      2h 19m
      Nonstop
      SEA 12:57 PM
      San Francisco - Seattle | Thu, Nov 19 | Delta Air Lines
      THB 2,040
      35% off
      THB 3,120 THB 2,040
    • SFO 8:58 PM
      2h 15m
      Nonstop
      SEA 11:13 PM
      San Francisco - Seattle | Mon, Nov 16 | Alaska Airlines
      THB 2,060
      34% off
      THB 3,120 THB 2,060
    • SFO 8:59 PM
      2h 27m
      Nonstop
      SEA 11:26 PM
      San Francisco - Seattle | Mon, Nov 16 | Delta Air Lines
      THB 2,100
      33% off
      THB 3,120 THB 2,100
    • SFO 12:39 PM
      2h 16m
      Nonstop
      SEA 2:55 PM
      San Francisco - Seattle | Tue, Dec 8 | Alaska Airlines
      THB 2,120
      32% off
      THB 3,120 THB 2,120
    • SFO 6:05 AM
      2h 15m
      Nonstop
      SEA 8:20 AM
      San Francisco - Seattle | Mon, Jan 4 | Delta Air Lines
      THB 2,190
      86% off
      THB 15,970 THB 2,190
    • SFO 7:00 AM
      2h 9m
      Nonstop
      SEA 9:09 AM
      San Francisco - Seattle | Sat, Dec 12 | Alaska Airlines
      THB 2,340
      25% off
      THB 3,120 THB 2,340
    • SFO 1:00 PM
      17h 25m
      1 stop
      SEA 2:00 PM
      San Francisco - Seattle | Thu, Oct 29 | Normal Airline
      Find more flights
      Find more flights
    • Cheapest nonstop
      SFO 8:15 AM
      2h 13m
      Nonstop
      SEA 10:28 AM
      San Francisco - Seattle | Sun, Dec 6 | Alaska Airlines
      SEA 9:40 PM
      2h 19m
      Nonstop
      SFO 11:59 PM
      Seattle - San Francisco | Tue, Dec 8 | Alaska Airlines
      THB 2,980 THB 5,370
      45% off
      45% off
      THB 5,370 THB 2,980
    • SFO 6:00 AM
      2h 18m
      Nonstop
      SEA 8:18 AM
      San Francisco - Seattle | Sun, Dec 6 | Delta Air Lines
      SEA 3:45 PM
      2h 12m
      Nonstop
      SFO 5:57 PM
      Seattle - San Francisco | Tue, Dec 8 | Alaska Airlines
      THB 3,090 THB 5,370
      42% off
      42% off
      THB 5,370 THB 3,090
    • SFO 10:39 AM
      2h 17m
      Nonstop
      SEA 12:56 PM
      San Francisco - Seattle | Wed, Nov 18 | Alaska Airlines
      SEA 8:35 PM
      2h 11m
      Nonstop
      SFO 10:46 PM
      Seattle - San Francisco | Mon, Nov 23 | Alaska Airlines
      THB 4,280 THB 5,370
      20% off
      20% off
      THB 5,370 THB 4,280
    • SFO 8:33 AM
      2h 19m
      Nonstop
      SEA 10:52 AM
      San Francisco - Seattle | Mon, Nov 16 | Alaska Airlines
      SEA 8:35 PM
      2h 11m
      Nonstop
      SFO 10:46 PM
      Seattle - San Francisco | Mon, Nov 23 | Alaska Airlines
      THB 4,280
      20% off
      THB 5,370 THB 4,280
    • SFO 6:00 AM
      2h 16m
      Nonstop
      SEA 8:16 AM
      San Francisco - Seattle | Thu, Dec 10 | Alaska Airlines
      SEA 6:40 PM
      2h 12m
      Nonstop
      SFO 8:52 PM
      Seattle - San Francisco | Mon, Dec 14 | Alaska Airlines
      THB 4,280
      20% off
      THB 5,370 THB 4,280
    • SFO 6:00 AM
      2h 16m
      Nonstop
      SEA 8:16 AM
      San Francisco - Seattle | Mon, Dec 14 | Alaska Airlines
      SEA 6:13 PM
      2h 20m
      Nonstop
      SFO 8:33 PM
      Seattle - San Francisco | Mon, Dec 21 | Alaska Airlines
      THB 4,280
      20% off
      THB 5,370 THB 4,280
    • SFO 6:48 PM
      2h 15m
      Nonstop
      SEA 9:03 PM
      San Francisco - Seattle | Tue, Nov 17 | Alaska Airlines
      SEA 8:35 PM
      2h 11m
      Nonstop
      SFO 10:46 PM
      Seattle - San Francisco | Sat, Nov 21 | Alaska Airlines
      THB 4,290
      20% off
      THB 5,370 THB 4,290
    • SFO 6:00 AM
      2h 16m
      Nonstop
      SEA 8:16 AM
      San Francisco - Seattle | Tue, Dec 8 | Alaska Airlines
      SEA 6:40 PM
      2h 12m
      Nonstop
      SFO 8:52 PM
      Seattle - San Francisco | Tue, Dec 15 | Alaska Airlines
      THB 4,290
      20% off
      THB 5,370 THB 4,290
    • SFO 3:58 PM
      2h 15m
      Nonstop
      SEA 6:13 PM
      San Francisco - Seattle | Wed, Dec 9 | Alaska Airlines
      SEA 1:36 PM
      2h 11m
      Nonstop
      SFO 3:47 PM
      Seattle - San Francisco | Sat, Dec 12 | Alaska Airlines
      THB 4,290
      20% off
      THB 5,370 THB 4,290
    • SFO 1:00 PM
      17h 25m
      1 stop
      SEA 2:00 PM
      San Francisco - Seattle | Thu, Oct 29 | Normal Airline
      SEA 3:00 PM
      6h
      Nonstop
      SFO 4:00 PM
      Seattle - San Francisco | Sat, Oct 31 | Normal Airline
      Find more flights
      Find more flights
    • Cheapest nonstop
      SFO 6:00 AM
      2h 18m
      Nonstop
      SEA 8:18 AM
      San Francisco - Seattle | Tue, Dec 8 | Delta Air Lines
      THB 2,010 THB 15,970
      87% off
      87% off
      THB 15,970 THB 2,010
    • SFO 6:05 AM
      2h 15m
      Nonstop
      SEA 8:20 AM
      San Francisco - Seattle | Mon, Jan 4 | Delta Air Lines
      THB 2,190 THB 15,970
      86% off
      86% off
      THB 15,970 THB 2,190
    • SFO 6:00 AM
      2h 18m
      Nonstop
      SEA 8:18 AM
      San Francisco - Seattle | Thu, Dec 10 | Delta Air Lines
      THB 2,620 THB 15,970
      84% off
      84% off
      THB 15,970 THB 2,620
    • SFO 5:56 PM
      2h 28m
      Nonstop
      SEA 8:24 PM
      San Francisco - Seattle | Mon, Dec 7 | Delta Air Lines
      THB 3,610
      77% off
      THB 15,970 THB 3,610
    • SFO 8:33 AM
      2h 19m
      Nonstop
      SEA 10:52 AM
      San Francisco - Seattle | Mon, Nov 16 | Alaska Airlines
      THB 3,650
      77% off
      THB 15,970 THB 3,650
    • SFO 8:59 PM
      2h 27m
      Nonstop
      SEA 11:26 PM
      San Francisco - Seattle | Tue, Nov 10 | Delta Air Lines
      THB 3,780
      76% off
      THB 15,970 THB 3,780
    • SFO 6:05 AM
      2h 15m
      Nonstop
      SEA 8:20 AM
      San Francisco - Seattle | Fri, Jan 15 | Delta Air Lines
      THB 3,790
      76% off
      THB 15,970 THB 3,790
    • SFO 7:00 AM
      2h 16m
      Nonstop
      SEA 9:16 AM
      San Francisco - Seattle | Wed, Dec 9 | Alaska Airlines
      THB 4,430
      72% off
      THB 15,970 THB 4,430
    • SFO 2:12 PM
      2h 18m
      Nonstop
      SEA 4:30 PM
      San Francisco - Seattle | Wed, Nov 18 | Delta Air Lines
      THB 4,450
      72% off
      THB 15,970 THB 4,450
    • SFO 1:00 PM
      17h 25m
      1 stop
      SEA 2:00 PM
      San Francisco - Seattle | Thu, Oct 29 | Normal Airline
      Find more flights
      Find more flights
    • Cheapest nonstop
      SFO 5:56 PM
      2h 28m
      Nonstop
      SEA 8:24 PM
      San Francisco - Seattle | Sat, Dec 12 | Delta Air Lines
      THB 1,330 THB 3,120
      56% off
      56% off
      THB 3,120 THB 1,330
    • SFO 8:59 PM
      2h 25m
      Nonstop
      SEA 11:24 PM
      San Francisco - Seattle | Tue, Dec 8 | Delta Air Lines
      THB 2,010 THB 3,120
      36% off
      36% off
      THB 3,120 THB 2,010
    • SFO 6:00 AM
      2h 18m
      Nonstop
      SEA 8:18 AM
      San Francisco - Seattle | Tue, Dec 8 | Delta Air Lines
      THB 2,010 THB 15,970
      87% off
      87% off
      THB 15,970 THB 2,010
    • SFO 10:38 AM
      2h 19m
      Nonstop
      SEA 12:57 PM
      San Francisco - Seattle | Thu, Nov 19 | Delta Air Lines
      THB 2,040
      35% off
      THB 3,120 THB 2,040
    • SFO 8:58 PM
      2h 15m
      Nonstop
      SEA 11:13 PM
      San Francisco - Seattle | Mon, Nov 16 | Alaska Airlines
      THB 2,060
      34% off
      THB 3,120 THB 2,060
    • SFO 8:59 PM
      2h 27m
      Nonstop
      SEA 11:26 PM
      San Francisco - Seattle | Mon, Nov 16 | Delta Air Lines
      THB 2,100
      33% off
      THB 3,120 THB 2,100
    • SFO 12:39 PM
      2h 16m
      Nonstop
      SEA 2:55 PM
      San Francisco - Seattle | Tue, Dec 8 | Alaska Airlines
      THB 2,120
      32% off
      THB 3,120 THB 2,120
    • SFO 6:05 AM
      2h 15m
      Nonstop
      SEA 8:20 AM
      San Francisco - Seattle | Mon, Jan 4 | Delta Air Lines
      THB 2,190
      86% off
      THB 15,970 THB 2,190
    • SFO 7:00 AM
      2h 9m
      Nonstop
      SEA 9:09 AM
      San Francisco - Seattle | Sat, Dec 12 | Alaska Airlines
      THB 2,340
      25% off
      THB 3,120 THB 2,340
    • SFO 1:00 PM
      17h 25m
      1 stop
      SEA 2:00 PM
      San Francisco - Seattle | Thu, Oct 29 | Normal Airline
      Find more flights
      Find more flights
    • Cheapest nonstop
      SFO 11:00 AM
      2h 16m
      Nonstop
      SEA 1:16 PM
      San Francisco - Seattle | Sat, Oct 31 | Alaska Airlines
      THB 2,610 THB 16,820
      84% off
      84% off
      THB 16,820 THB 2,610
    • SFO 10:39 AM
      2h 17m
      Nonstop
      SEA 12:56 PM
      San Francisco - Seattle | Sun, Nov 1 | Alaska Airlines
      THB 4,720 THB 16,820
      72% off
      72% off
      THB 16,820 THB 4,720
    • SFO 1:51 PM
      2h 13m
      Nonstop
      SEA 4:04 PM
      San Francisco - Seattle | Sat, Oct 31 | American Airlines
      THB 5,400 THB 16,820
      68% off
      68% off
      THB 16,820 THB 5,400
    • SFO 8:33 AM
      2h 19m
      Nonstop
      SEA 10:52 AM
      San Francisco - Seattle | Tue, Nov 3 | Alaska Airlines
      THB 8,470
      50% off
      THB 16,820 THB 8,470
    • SFO 2:15 PM
      2h 22m
      Nonstop
      SEA 4:37 PM
      San Francisco - Seattle | Tue, Nov 3 | Delta Air Lines
      THB 8,540
      49% off
      THB 16,820 THB 8,540
    • SFO 10:39 AM
      2h 17m
      Nonstop
      SEA 12:56 PM
      San Francisco - Seattle | Mon, Nov 2 | Alaska Airlines
      THB 10,430
      38% off
      THB 16,820 THB 10,430
    • SFO 6:20 AM
      2h 21m
      Nonstop
      SEA 8:41 AM
      San Francisco - Seattle | Fri, Oct 30 | Delta Air Lines
      THB 10,690
      36% off
      THB 16,820 THB 10,690
    • SFO 5:45 PM
      2h 19m
      Nonstop
      SEA 8:04 PM
      San Francisco - Seattle | Mon, Nov 2 | Delta Air Lines
      THB 12,770
      24% off
      THB 16,820 THB 12,770
    • SFO 4:21 PM
      2h 12m
      Nonstop
      SEA 6:33 PM
      San Francisco - Seattle | Wed, Oct 28 | Alaska Airlines
      THB 13,110
      22% off
      THB 16,820 THB 13,110
    • SFO 1:00 PM
      17h 25m
      1 stop
      SEA 2:00 PM
      San Francisco - Seattle | Thu, Oct 29 | Normal Airline
      Find more flights
      Find more flights
    • SFO 12:19 PM
      1h 59m
      Nonstop
      SEA 2:18 PM
      San Francisco - Seattle | Sun, Dec 6 | United Airlines
      THB 7,910 THB 12,130
      35% off
      35% off
      THB 12,130 THB 7,910
    • SFO 6:40 PM
      2h 8m
      Nonstop
      SEA 8:48 PM
      San Francisco - Seattle | Fri, Jan 22 | United Airlines
      THB 4,180 THB 12,130
      66% off
      66% off
      THB 12,130 THB 4,180
    • SFO 6:32 PM
      2h 8m
      Nonstop
      SEA 8:40 PM
      San Francisco - Seattle | Fri, Jan 1 | United Airlines
      THB 4,270 THB 12,130
      65% off
      65% off
      THB 12,130 THB 4,270
    • SFO 6:32 PM
      2h 8m
      Nonstop
      SEA 8:40 PM
      San Francisco - Seattle | Tue, Dec 29 | United Airlines
      THB 5,860
      52% off
      THB 12,130 THB 5,860
    • SFO 6:32 PM
      2h 8m
      Nonstop
      SEA 8:40 PM
      San Francisco - Seattle | Fri, Dec 25 | United Airlines
      THB 5,890
      51% off
      THB 12,130 THB 5,890
    • SFO 6:40 PM
      2h 8m
      Nonstop
      SEA 8:48 PM
      San Francisco - Seattle | Fri, Jan 15 | United Airlines
      THB 7,130
      41% off
      THB 12,130 THB 7,130
    • SFO 6:32 PM
      2h 8m
      Nonstop
      SEA 8:40 PM
      San Francisco - Seattle | Sat, Dec 26 | United Airlines
      THB 7,150
      41% off
      THB 12,130 THB 7,150
    • SFO 6:32 PM
      2h 8m
      Nonstop
      SEA 8:40 PM
      San Francisco - Seattle | Tue, Dec 22 | United Airlines
      THB 7,860
      35% off
      THB 12,130 THB 7,860
    • SFO 6:32 PM
      2h 8m
      Nonstop
      SEA 8:40 PM
      San Francisco - Seattle | Sun, Dec 20 | United Airlines
      THB 7,870
      35% off
      THB 12,130 THB 7,870
    • SFO 1:00 PM
      17h 25m
      1 stop
      SEA 2:00 PM
      San Francisco - Seattle | Thu, Oct 29 | Normal Airline
      Find more flights
      Find more flights

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

Trip.com Price Insights: Flights from San Francisco International Airport to Seattle-Tacoma International Airport

Which month has the lowest one-way flight price from San Francisco International Airport to Seattle-Tacoma International Airport?

The data is based on the average one-way flight prices on Trip.com for flights from San Francisco International Airport to Seattle-Tacoma International Airport across different months over the past 12 months.

Based on Trip.com data from the past 12 months, if you’re looking for low one-way flight fares from San Francisco International Airport to Seattle-Tacoma International Airport, the best time to book is in January, with an average price of THB 5,230. Try to avoid June, when prices are highest, averaging around THB 7,870.

THB 7,870
THB 6,550
THB 5,230
THB 3,910
    Cheapest
  • THB 5,530
    Oct
  • THB 5,870
    Nov
  • THB 6,140
    Dec
  • THB 5,230
    Jan
  • THB 5,900
    Feb
  • THB 7,160
    Mar
  • THB 6,150
    Apr
  • THB 7,600
    May
  • THB 7,870
    Jun
  • THB 7,000
    Jul
  • THB 6,620
    Aug
  • THB 6,380
    Sep

Which month is the cheapest for round-trip flights from San Francisco International Airport to Seattle-Tacoma International Airport?

The data is based on the average round-trip flight prices on Trip.com for flights from San Francisco International Airport to Seattle-Tacoma International Airport across different months over the past 12 months.

Based on Trip.com data from the past 12 months, January is usually the cheapest month to find flights from San Francisco International Airport to Seattle-Tacoma International Airport, with an average price of THB 6,970. In contrast, June is typically the most expensive month, with average prices reaching THB 14,610.

THB 14,610
THB 10,790
THB 6,970
THB 3,150
    Cheapest
  • THB 8,970
    Oct
  • THB 12,740
    Nov
  • THB 9,230
    Dec
  • THB 6,970
    Jan
  • THB 8,210
    Feb
  • THB 10,540
    Mar
  • THB 9,910
    Apr
  • THB 13,090
    May
  • THB 14,610
    Jun
  • THB 13,220
    Jul
  • THB 10,760
    Aug
  • THB 10,900
    Sep

What is the cheapest day of the week to fly from San Francisco International Airport to Seattle-Tacoma International Airport?

The data is based on the average flight prices on Trip.com from San Francisco International Airport to Seattle-Tacoma International Airport across different days of the week over the past 12 months.

Based on Trip.com data from the past 12 months, the cheapest day to depart from San Francisco International Airport to Seattle-Tacoma International Airport is usually Tuesday, with average fares typically lower than other days. Try to avoid departing on Friday, as prices are usually the highest on that day.

THB 7,740
THB 6,625
THB 5,510
THB 4,395
  • THB 6,180
    Mon
  • THB 5,510
    Tue
  • THB 5,700
    Wed
  • THB 6,890
    Thu
  • THB 7,740
    Fri
  • THB 6,760
    Sat
  • THB 7,030
    Sun

Which airline offers the cheapest flights from San Francisco International Airport to Seattle-Tacoma International Airport?

The cheapest airline flying from San Francisco International Airport to Seattle-Tacoma International Airport is Delta Air Lines (from THB 1,330) among 6 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Delta Air Lines
From THB 1,330
Alaska Airlines
From THB 2,060
Frontier Airlines
From THB 2,510
American Airlines
From THB 2,910
United Airlines
From THB 3,790
Hahn Air
From THB 3,950

Find more flights and airlines

What is the flight schedule from San Francisco International Airport to Seattle-Tacoma International Airport?

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

Flight info.
Departure
Arrival
Weekly Schedule

  1. AS620

    San Francisco International Airport

    8:35 PM

    SFO

    2h 19m

    10:54 PM

    SEA

    S M T W T F S
    Search

  2. AS068

    San Francisco International Airport

    4:21 PM

    SFO

    2h 12m

    6:33 PM

    SEA

    S M T W T - S
    Search

  3. AS591

    San Francisco International Airport

    7:11 PM

    SFO

    2h 14m

    9:25 PM

    SEA

    S M T W T - S
    Search

  4. DL2721

    San Francisco International Airport

    6:05 AM

    SFO

    2h 15m

    8:20 AM

    SEA

    S M T W T F S
    Search

  5. AS1327

    San Francisco International Airport

    7:45 PM

    SFO

    2h 14m

    9:59 PM

    SEA

    S M T W T F S
    Search

  6. AS1340

    San Francisco International Airport

    5:42 PM

    SFO

    2h 12m

    7:54 PM

    SEA

    S M T W T - S
    Search

  7. DL1412

    San Francisco International Airport

    2:15 PM

    SFO

    2h 22m

    4:37 PM

    SEA

    S M T W T F S
    Search

  8. DL3991

    San Francisco International Airport

    8:58 PM

    SFO

    2h 15m

    11:13 PM

    SEA

    - - T W T - -
    Search

  9. DL3707

    San Francisco International Airport

    5:45 PM

    SFO

    2h 19m

    8:04 PM

    SEA

    S M T W T F S
    Search

  10. F92858

    San Francisco International Airport

    9:31 PM

    SFO

    1h 33m

    Nonstop

    11:04 PM

    LAX

    - M T - - F -
    Search

  11. F91177

    Los Angeles International Airport

    5:02 PM

    LAX

    3h

    Nonstop

    8:02 PM

    SEA

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

About San Francisco International Airport and Seattle-Tacoma International Airport

Learn about San Francisco International Airport (SFO) and Seattle-Tacoma International Airport (SEA) — including location, terminals, transportation, and travel tips.

Flight distance 1,094.14 km
Cheapest one-way ticket price THB 1,330
Cheapest return ticket price THB 2,980

FAQs for San Francisco International Airport to Seattle-Tacoma International Airport Flights

  • How long is the flight from San Francisco International Airport to Seattle-Tacoma International Airport?

    San Francisco International Airport to Seattle-Tacoma International Airport takes about 1 hour 39 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 21 daily flights from San Francisco International Airport (SFO) to Seattle-Tacoma International Airport (SEA).
  • The earliest flight from San Francisco International Airport to Seattle-Tacoma International Airport departs at 06:07, and the last departs at 22:45, with about 24 flights per day. Flight times may change, so please check the latest departure and arrival times before you travel.
  • The route from San Francisco International Airport (SFO) to Seattle-Tacoma International Airport (SEA) is quite popular. Without considering departure times or holidays, tickets cost around THB 13,140 in October, the most expensive month to book this route.
    • The distance from Seattle-Tacoma International Airport to downtown is about 17 km. It takes about 30 minutes by taxi.
  • Delta Air Lines is a very popular airline operating an average of 5735 flights per month.
  • One-way flights from San Francisco International Airport to Seattle-Tacoma International Airport currently start from THB 1,330, and round-trip fares start from THB 2,980. The current lowest fare is a Delta Air Lines flight departing on Sat, Dec 12; prices may vary depending on availability.
  • Yes. Alaska Airlines, United Airlines, Delta Air Lines and Cathay Pacific operate direct flights from San Francisco International Airport to Seattle-Tacoma International Airport, with an average flight time of 1 hour 32 minutes, and around 153 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 San Francisco International Airport to Seattle-Tacoma International Airport is THB 5,810. Prices may vary depending on the departure date, airline, and availability.
  • Condor and WestJet are the most popular budget airlines flying from San Francisco International Airport to Seattle-Tacoma International Airport, with one-way fares starting from THB 1,330. Compare final prices carefully, as baggage, seat selection and payment fees may apply.
  • San Francisco International Airport to Seattle-Tacoma International Airport operates around 149 weekly flights, mainly by Alaska Airlines, United Airlines and Delta Air Lines. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Enter San Francisco International Airport and Seattle-Tacoma 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 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.