Trip.com
>
Flights
>
United States
>
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 S$ 48 and round-trip from S$ 112. Based on Trip.com's latest 7-day flight data.

      • Cheapest nonstop
        SFO 06:07
        2h 13m
        Direct
        SEA 08:20
        San Francisco - Seattle | Mon, Nov 2 | Alaska Airlines
        SEA 07:18
        2h 23m
        Direct
        SFO 09:41
        Seattle - San Francisco | Wed, Nov 4 | Alaska Airlines
        S$ 112 S$ 262
        56% off
        56% off
        S$ 262 S$ 112
      • SFO 20:58
        2h 15m
        Direct
        SEA 23:13
        San Francisco - Seattle | Mon, Nov 16 | Alaska Airlines
        SEA 07:18
        2h 23m
        Direct
        SFO 09:41
        Seattle - San Francisco | Wed, Nov 18 | Alaska Airlines
        S$ 113 S$ 262
        56% off
        56% off
        S$ 262 S$ 113
      • SFO 06:20
        2h 21m
        Direct
        SEA 08:41
        San Francisco - Seattle | Mon, Nov 2 | Delta Air Lines
        SEA 07:18
        2h 23m
        Direct
        SFO 09:41
        Seattle - San Francisco | Wed, Nov 4 | Alaska Airlines
        S$ 117 S$ 262
        55% off
        55% off
        S$ 262 S$ 117
      • SFO 10:39
        2h 17m
        Direct
        SEA 12:56
        San Francisco - Seattle | Thu, Nov 12 | Alaska Airlines
        SEA 21:20
        2h 11m
        Direct
        SFO 23:31
        Seattle - San Francisco | Sat, Nov 14 | Delta Air Lines
        S$ 117
        55% off
        S$ 262 S$ 117
      • SFO 06:17
        2h 18m
        Direct
        SEA 08:35
        San Francisco - Seattle | Mon, Nov 16 | Delta Air Lines
        SEA 07:18
        2h 23m
        Direct
        SFO 09:41
        Seattle - San Francisco | Wed, Nov 18 | Alaska Airlines
        S$ 118
        55% off
        S$ 262 S$ 118
      • SFO 06:17
        2h 18m
        Direct
        SEA 08:35
        San Francisco - Seattle | Thu, Nov 12 | Delta Air Lines
        SEA 21:20
        2h 11m
        Direct
        SFO 23:31
        Seattle - San Francisco | Sat, Nov 14 | Delta Air Lines
        S$ 118
        55% off
        S$ 262 S$ 118
      • SFO 17:45
        2h 11m
        Direct
        SEA 19:56
        San Francisco - Seattle | Fri, Oct 9 | Alaska Airlines
        SEA 06:39
        2h 10m
        Direct
        SFO 08:49
        Seattle - San Francisco | Sun, Oct 11 | Alaska Airlines
        S$ 180
        31% off
        S$ 262 S$ 180
      • SFO 17:45
        2h 19m
        Direct
        SEA 20:04
        San Francisco - Seattle | Fri, Oct 9 | Delta Air Lines
        SEA 06:39
        2h 10m
        Direct
        SFO 08:49
        Seattle - San Francisco | Sun, Oct 11 | Alaska Airlines
        S$ 182
        31% off
        S$ 262 S$ 182
      • SFO 19:11
        2h 14m
        Direct
        SEA 21:25
        San Francisco - Seattle | Fri, Oct 23 | Alaska Airlines
        SEA 21:36
        2h 16m
        Direct
        SFO 23:52
        Seattle - San Francisco | Sun, Oct 25 | Alaska Airlines
        S$ 185
        28% off
        S$ 262 S$ 185
      • SFO 15:21
        2h 12m
        Direct
        SEA 17:33
        San Francisco - Seattle | Tue, Oct 27 | Alaska Airlines
        SEA 21:36
        2h 16m
        Direct
        SFO 23:52
        Seattle - San Francisco | Thu, Oct 29 | Alaska Airlines
        S$ 188
        28% off
        S$ 262 S$ 188
      • SFO 06:00
        2h 21m
        Direct
        SEA 08:21
        San Francisco - Seattle | Fri, Oct 23 | Delta Air Lines
        SEA 06:39
        2h 10m
        Direct
        SFO 08:49
        Seattle - San Francisco | Sun, Oct 25 | Alaska Airlines
        S$ 191
        27% off
        S$ 262 S$ 191
      • SFO 06:04
        9h 4m
        1 stop
        SEA 15:08
        San Francisco - Seattle | Fri, Oct 9 | Frontier Airlines
        SEA 06:39
        2h 10m
        Direct
        SFO 08:49
        Seattle - San Francisco | Sun, Oct 11 | Alaska Airlines
        S$ 182
        31% off
        S$ 262 S$ 182
      • SFO 13:00
        17h 25m
        1 stop
        SEA 14:00
        San Francisco - Seattle | Fri, Oct 9 | Normal Airline
        SEA 15:00
        6h
        Direct
        SFO 16:00
        Seattle - San Francisco | Sun, Oct 11 | Normal Airline
        Find more flights
        Find more flights
      • Cheapest nonstop
        SFO 18:48
        2h 15m
        Direct
        SEA 21:03
        San Francisco - Seattle | Sat, Nov 7 | Alaska Airlines
        S$ 48 S$ 117
        59% off
        59% off
        S$ 117 S$ 48
      • SFO 14:15
        2h 22m
        Direct
        SEA 16:37
        San Francisco - Seattle | Sat, Nov 7 | Delta Air Lines
        S$ 49 S$ 117
        57% off
        57% off
        S$ 117 S$ 49
      • SFO 10:39
        2h 17m
        Direct
        SEA 12:56
        San Francisco - Seattle | Sun, Nov 8 | Alaska Airlines
        S$ 50 S$ 117
        56% off
        56% off
        S$ 117 S$ 50
      • SFO 14:15
        2h 22m
        Direct
        SEA 16:37
        San Francisco - Seattle | Sun, Nov 8 | Delta Air Lines
        S$ 50
        56% off
        S$ 117 S$ 50
      • SFO 10:35
        2h 22m
        Direct
        SEA 12:57
        San Francisco - Seattle | Fri, Oct 9 | Delta Air Lines
        S$ 50
        56% off
        S$ 117 S$ 50
      • SFO 20:58
        2h 15m
        Direct
        SEA 23:13
        San Francisco - Seattle | Mon, Nov 16 | Alaska Airlines
        S$ 58
        50% off
        S$ 117 S$ 58
      • SFO 06:17
        2h 18m
        Direct
        SEA 08:35
        San Francisco - Seattle | Mon, Nov 16 | Delta Air Lines
        S$ 58
        50% off
        S$ 117 S$ 58
      • SFO 19:11
        2h 14m
        Direct
        SEA 21:25
        San Francisco - Seattle | Tue, Oct 13 | Alaska Airlines
        S$ 68
        42% off
        S$ 117 S$ 68
      • SFO 16:21
        2h 12m
        Direct
        SEA 18:33
        San Francisco - Seattle | Sun, Oct 18 | Alaska Airlines
        S$ 69
        41% off
        S$ 117 S$ 69
      • SFO 17:45
        2h 11m
        Direct
        SEA 19:56
        San Francisco - Seattle | Sat, Oct 17 | Alaska Airlines
        S$ 70
        40% off
        S$ 117 S$ 70
      • SFO 20:58
        2h 15m
        Direct
        SEA 23:13
        San Francisco - Seattle | Sat, Oct 17 | Delta Air Lines
        S$ 85
        27% off
        S$ 117 S$ 85
      • SFO 17:45
        2h 19m
        Direct
        SEA 20:04
        San Francisco - Seattle | Sun, Oct 18 | Delta Air Lines
        S$ 85
        27% off
        S$ 117 S$ 85
      • SFO 13:00
        17h 25m
        1 stop
        SEA 14:00
        San Francisco - Seattle | Fri, Oct 9 | Normal Airline
        Find more flights
        Find more flights

Flight prices from San Francisco International Airport to Seattle-Tacoma International Airport are based on the average fares across airlines for the next three months, based on Trip.com’s latest data.

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

Which month has the cheapest one-way flights from San Francisco International Airport to Seattle-Tacoma International Airport?

The data is based on Trip.com data from the past 12 months and shows the average one-way fares by month from San Francisco International Airport to Seattle-Tacoma International Airport.

Based on Trip.com data from the past 12 months, the cheapest one-way flights from San Francisco International Airport to Seattle-Tacoma International Airport are usually in January, with an average price of S$ 198. June sees the highest fares, around S$ 297.

S$ 297
S$ 248
S$ 198
S$ 149
    Cheapest
  • S$ 199
    Oct
  • S$ 221
    Nov
  • S$ 232
    Dec
  • S$ 198
    Jan
  • S$ 223
    Feb
  • S$ 270
    Mar
  • S$ 232
    Apr
  • S$ 287
    May
  • S$ 297
    Jun
  • S$ 264
    Jul
  • S$ 250
    Aug
  • S$ 241
    Sep

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

The data is based on Trip.com data from the past 12 months and shows the average round-trip fares by month from San Francisco International Airport to Seattle-Tacoma International Airport.

Based on Trip.com data from the past 12 months, the cheapest round‑trip flights from San Francisco International Airport to Seattle-Tacoma International Airport are usually in January, with an average price of S$ 263. June sees the highest fares, around S$ 551.

S$ 551
S$ 407
S$ 263
S$ 119
    Cheapest
  • S$ 362
    Oct
  • S$ 481
    Nov
  • S$ 348
    Dec
  • S$ 263
    Jan
  • S$ 310
    Feb
  • S$ 397
    Mar
  • S$ 374
    Apr
  • S$ 494
    May
  • S$ 551
    Jun
  • S$ 499
    Jul
  • S$ 406
    Aug
  • S$ 411
    Sep

Which day of the week has the cheapest flights from San Francisco International Airport to Seattle-Tacoma International Airport?

The data is based on Trip.com data from the past 12 months and shows the average fares by each day of the week from San Francisco International Airport to Seattle-Tacoma International Airport.

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

S$ 292
S$ 247
S$ 202
S$ 157
  • S$ 225
    Mon
  • S$ 202
    Tue
  • S$ 218
    Wed
  • S$ 255
    Thu
  • S$ 292
    Fri
  • S$ 253
    Sat
  • S$ 262
    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 Alaska Airlines (from S$ 48) among 6 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Alaska Airlines
From S$ 48
Delta Air Lines
From S$ 49
Frontier Airlines
From S$ 94
American Airlines
From S$ 95
Hahn Air
From S$ 110
United Airlines
From S$ 116

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. AS1340

    San Francisco International Airport

    16:51

    SFO

    2h 16m

    19:07

    SEA

    S M T W T F S
    Search

  2. AS068

    San Francisco International Airport

    16:21

    SFO

    2h 12m

    18:33

    SEA

    S M T W T F S
    Search

  3. AS1327

    San Francisco International Airport

    21:20

    SFO

    2h 14m

    23:34

    SEA

    S M T W T F S
    Search

  4. AS630

    San Francisco International Airport

    15:21

    SFO

    2h 12m

    17:33

    SEA

    S M T W T F S
    Search

  5. AS620

    San Francisco International Airport

    06:07

    SFO

    2h 13m

    08:20

    SEA

    S M T W T - S
    Search

  6. AS591

    San Francisco International Airport

    15:50

    SFO

    2h 12m

    18:02

    SEA

    S M T W T F S
    Search

  7. DL3991

    San Francisco International Airport

    20:58

    SFO

    2h 15m

    23:13

    SEA

    S M T W T - S
    Search

  8. AS580

    San Francisco International Airport

    11:00

    SFO

    2h 16m

    13:16

    SEA

    S M T W T F S
    Search

  9. AS758

    San Francisco International Airport

    20:46

    SFO

    2h 17m

    23:03

    SEA

    S - T W T - S
    Search

  10. DL3707

    San Francisco International Airport

    17:45

    SFO

    2h 19m

    20:04

    SEA

    S M T W T F S
    Search
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 1,094.14km
Cheapest one-way ticket price S$ 48
Cheapest return ticket price S$ 112

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 42 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 22 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 06:00, and the last departs at 22:45, with about 32 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 S$ 351 in October, the most expensive month to book this route.
  • The earliest flight departs from San Francisco International Airport (SFO) at 06:00 and arrives in Seattle-Tacoma International Airport (SEA) at 08:20.
  • The latest flight departs from San Francisco International Airport (SFO) at 21:00 and arrives in Seattle-Tacoma International Airport (SEA) at 23:15.
    • The distance from Seattle-Tacoma International Airport to downtown is about 17km, by taxi about 30 minutes.
  • 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 S$ 48, and round-trip fares start from S$ 112. The current lowest fare is a Alaska Airlines flight departing on Sat, Nov 7; prices may vary depending on availability.
  • Yes. Alaska Airlines, United Airlines, Delta Air Lines, Cathay Pacific and Iberia operate direct flights from San Francisco International Airport to Seattle-Tacoma International Airport, with an average flight time of 1 hour 39 minutes, and around 149 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 S$ 208. 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 S$ 48. Compare final prices carefully, as baggage, seat selection and payment fees may apply.
  • San Francisco International Airport to Seattle-Tacoma International Airport operates around 157 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 & Recommendations

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 shown before payment. Charges for checked baggage, meals, Wi-Fi, and other optional services may also appear in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page have been updated within the last 24 hours, and with many routes refreshed in real time. The more popular the route, the more accurate 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.