Trip.com
>
Flights
>
Flights to United States
>
Flights to Washington
>
Flights to Seattle
Hotels in Seattle
>
Flights from San Francisco to Seattle

Search for direct flights from San Francisco to Seattle in the next 3 months. Based on Trip.com's latest 7-day flight data, one-way direct flights start at US$78, and round-trip direct flights start at US$134.

      • Cheapest nonstop
        SFO 05:55
        2h 20m
        Nonstop
        SEA 08:15
        San Francisco - Seattle | Sat, Jun 6 | Delta Air Lines
        SEA 07:03
        2h 17m
        Nonstop
        SFO 09:20
        Seattle - San Francisco | Sat, Jun 13 | Alaska Airlines
        US$134 US$216
        38% off
        38% off
        US$216 US$134
      • SFO 05:55
        2h 22m
        Nonstop
        SEA 08:17
        San Francisco - Seattle | Sun, May 24 | Delta Air Lines
        SEA 07:15
        2h 19m
        Nonstop
        SFO 09:34
        Seattle - San Francisco | Sun, May 31 | Delta Air Lines
        US$135 US$216
        38% off
        38% off
        US$216 US$135
      • SFO 22:59
        2h 14m
        Nonstop
        SEA 01:13
        San Francisco - Seattle | Sun, May 24 | United Airlines
        SEA 07:00
        2h 18m
        Nonstop
        SFO 09:18
        Seattle - San Francisco | Sun, May 31 | United Airlines
        US$138 US$216
        36% off
        36% off
        US$216 US$138
      • SFO 22:59
        2h 14m
        Nonstop
        SEA 01:13
        San Francisco - Seattle | Sat, Jun 6 | United Airlines
        SEA 08:45
        2h 18m
        Nonstop
        SFO 11:03
        Seattle - San Francisco | Sat, Jun 13 | United Airlines
        US$138
        36% off
        US$216 US$138
      • SFO 06:00
        2h 17m
        Nonstop
        SEA 08:17
        San Francisco - Seattle | Wed, May 27 | Alaska Airlines
        SEA 08:43
        2h 17m
        Nonstop
        SFO 11:00
        Seattle - San Francisco | Tue, Jun 2 | Alaska Airlines
        US$152
        30% off
        US$216 US$152
      • SFO 07:03
        2h 10m
        Nonstop
        SEA 09:13
        San Francisco - Seattle | Tue, Jun 16 | Alaska Airlines
        SEA 07:03
        2h 17m
        Nonstop
        SFO 09:20
        Seattle - San Francisco | Tue, Jun 23 | Alaska Airlines
        US$152
        30% off
        US$216 US$152
      • SFO 06:03
        2h 10m
        Nonstop
        SEA 08:13
        San Francisco - Seattle | Tue, Jun 23 | Alaska Airlines
        SEA 11:42
        2h 22m
        Nonstop
        SFO 14:04
        Seattle - San Francisco | Tue, Jun 30 | Alaska Airlines
        US$152
        30% off
        US$216 US$152
      • SFO 06:03
        2h 10m
        Nonstop
        SEA 08:13
        San Francisco - Seattle | Wed, Jun 24 | Alaska Airlines
        SEA 07:03
        2h 17m
        Nonstop
        SFO 09:20
        Seattle - San Francisco | Wed, Jul 1 | Alaska Airlines
        US$152
        30% off
        US$216 US$152
      • SFO 06:00
        2h 17m
        Nonstop
        SEA 08:17
        San Francisco - Seattle | Tue, Jun 9 | Alaska Airlines
        SEA 07:03
        2h 17m
        Nonstop
        SFO 09:20
        Seattle - San Francisco | Tue, Jun 16 | Alaska Airlines
        US$152
        30% off
        US$216 US$152
      • SFO 20:59
        2h 25m
        Nonstop
        SEA 23:24
        San Francisco - Seattle | Tue, Jun 9 | Delta Air Lines
        SEA 07:03
        2h 17m
        Nonstop
        SFO 09:20
        Seattle - San Francisco | Tue, Jun 16 | Alaska Airlines
        US$155
        28% off
        US$216 US$155
      • SFO 13:00
        17h 25m
        1 stop
        SEA 14:00
        San Francisco - Seattle | Sat, May 23 | Normal Airline
        SEA 15:00
        6h
        Nonstop
        SFO 16:00
        Seattle - San Francisco | Mon, May 25 | Normal Airline
        Find more flights
        Find more flights
      • Cheapest nonstop
        SFO 10:29
        2h 16m
        Nonstop
        SEA 12:45
        San Francisco - Seattle | Wed, May 27 | Delta Air Lines
        US$78 US$132
        41% off
        41% off
        US$132 US$78
      • SFO 05:55
        2h 16m
        Nonstop
        SEA 08:11
        San Francisco - Seattle | Tue, Jun 23 | Delta Air Lines
        US$81 US$132
        39% off
        39% off
        US$132 US$81
      • SFO 06:03
        2h 10m
        Nonstop
        SEA 08:13
        San Francisco - Seattle | Tue, Jun 16 | Alaska Airlines
        US$86 US$132
        35% off
        35% off
        US$132 US$86
      • SFO 05:55
        2h 20m
        Nonstop
        SEA 08:15
        San Francisco - Seattle | Wed, Jun 3 | Delta Air Lines
        US$87
        34% off
        US$132 US$87
      • SFO 20:59
        2h 25m
        Nonstop
        SEA 23:24
        San Francisco - Seattle | Wed, Jun 24 | Delta Air Lines
        US$89
        33% off
        US$132 US$89
      • SFO 20:59
        2h 25m
        Nonstop
        SEA 23:24
        San Francisco - Seattle | Tue, Jun 30 | Delta Air Lines
        US$90
        32% off
        US$132 US$90
      • SFO 20:05
        2h 20m
        Nonstop
        SEA 22:25
        San Francisco - Seattle | Tue, Jul 7 | Delta Air Lines
        US$94
        28% off
        US$132 US$94
      • SFO 20:05
        2h 20m
        Nonstop
        SEA 22:25
        San Francisco - Seattle | Sat, Jul 4 | Delta Air Lines
        US$95
        28% off
        US$132 US$95
      • SFO 06:05
        2h 20m
        Nonstop
        SEA 08:25
        San Francisco - Seattle | Mon, Jul 6 | Delta Air Lines
        US$95
        28% off
        US$132 US$95
      • SFO 13:00
        17h 25m
        1 stop
        SEA 14:00
        San Francisco - Seattle | Sat, May 23 | 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 on Flights from San Francisco to Seattle

Which month has the cheapest one-way flights from to Seattle?

Average monthly one-way flight prices from to Seattle, based on bookings made by Trip.com users over the past 12 months.

Based on Trip.com’s data, the cheapest month for flights from to Seattle is May, with an average price of US$143; while the month with the highest flight price is usually March, with an average price of up to US$208.

US$208
US$176
US$143
US$111
  • US$143
    May
  • US$157
    Jun
  • US$169
    Jul
  • US$168
    Aug
  • US$158
    Sep
  • US$147
    Oct
  • US$171
    Nov
  • US$179
    Dec
  • US$152
    Jan
  • US$172
    Feb
  • US$208
    Mar
  • US$179
    Apr

Which month has the cheapest round-trip flights from to Seattle?

The average price of round-trip flights from to Seattle purchased by Trip.com users by month over the past 12 months.

Based on data from Trip.com, the lowest prices for round-trip flights from to Seattle are found during January, with an average price of US$203. Conversely, the highest prices are found during November, with an average price of up to US$370.

US$370
US$287
US$203
US$120
    Cheapest
  • US$257
    May
  • US$292
    Jun
  • US$329
    Jul
  • US$281
    Aug
  • US$265
    Sep
  • US$300
    Oct
  • US$370
    Nov
  • US$269
    Dec
  • US$203
    Jan
  • US$239
    Feb
  • US$306
    Mar
  • US$288
    Apr

Frequently Asked Questions

  • What are the cheapest flights from San Francisco to Seattle (SFO-SEA)?

    Based on Trip.com data, Delta Air Lines offers one-way fares as low as US$78 on Cheapest nonstop routes (e.g. SFO to SEA on Wed, May 27), while Delta Air Lines offers Cheapest nonstop round-trips from US$134 departing on Sat, Jun 6 and returning on Sat, Jun 13.
  • At the moment, you can catch a nonstop flight from San Francisco to Seattle with the following airlines, including: Alaska Airlines Delta Air Lines Hawaiian Airlines United Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • It takes about 2 hours 16 minutes to fly from San Francisco to Seattle.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from San Francisco to Seattle is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • Based on Trip.com data in the past 4 weeks, there is 12 flight per week flying from San Francisco to Seattle. You can check the weekly schedule for popular airlines on this route below: Alaska Airlines: S/M/T/W/T/F/S -- AS1476 (09:34)
  • To find best deals on flights from San Francisco to Seattle, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Wed, May 27, with one-way flights priced at just US$78.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Delta Air Lines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Seattle travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from San Francisco to Seattle is November, when demand for travel is lower.
  • After crunching the numbers on our May flight calendar, it's currently cheapest to fly from San Francisco to Seattle on May 28, 2026 with Delta Air Lines, with prices starting at US$72.
  • You can land at any one of the following hubs in Seattle, with San Francisco International Airport to Seattle-Tacoma International Airport (SFO-SEA) is by far the most common option on this route: King County (Boeing Field) International Airport (BFI) Kenmore Air Harbor Seaplane Base (LKE) Seattle-Tacoma International Airport (SEA).
  • The time difference between Seattle and San Francisco is 0h.
  • Tickets can only be changed or canceled if permitted by airline policy. 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. However, 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.

Explore More Popular Flights

Note: Prices shown on this page are the estimated lowest 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 you pay. Charges for checked baggage, onboard meals, Wi‑Fi, and other optional services are also included where applicable in the flight cards.

Real-time pricing updates

Prices, availability, and travel details on this page have been updated within the last 24 hours, and for many routes are refreshed 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.