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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 US$40 and round-trip from US$89. 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
      US$40 US$93
      56% off
      56% off
      US$93 US$40
    • SFO 8:58 PM
      2h 15m
      Nonstop
      SEA 11:13 PM
      San Francisco - Seattle | Fri, Nov 13 | Alaska Airlines
      US$45 US$93
      52% off
      52% off
      US$93 US$45
    • SFO 6:17 AM
      2h 18m
      Nonstop
      SEA 8:35 AM
      San Francisco - Seattle | Fri, Nov 13 | Delta Air Lines
      US$46 US$93
      51% off
      51% off
      US$93 US$46
    • SFO 8:59 PM
      2h 25m
      Nonstop
      SEA 11:24 PM
      San Francisco - Seattle | Tue, Dec 8 | Delta Air Lines
      US$60
      35% off
      US$93 US$60
    • SFO 6:00 AM
      2h 18m
      Nonstop
      SEA 8:18 AM
      San Francisco - Seattle | Tue, Dec 8 | Delta Air Lines
      US$60
      87% off
      US$467 US$60
    • SFO 10:38 AM
      2h 19m
      Nonstop
      SEA 12:57 PM
      San Francisco - Seattle | Thu, Nov 19 | Delta Air Lines
      US$61
      34% off
      US$93 US$61
    • SFO 12:39 PM
      2h 16m
      Nonstop
      SEA 2:55 PM
      San Francisco - Seattle | Tue, Dec 8 | Alaska Airlines
      US$63
      32% off
      US$93 US$63
    • SFO 6:17 AM
      2h 18m
      Nonstop
      SEA 8:35 AM
      San Francisco - Seattle | Tue, Nov 24 | Delta Air Lines
      US$65
      30% off
      US$93 US$65
    • SFO 6:17 AM
      2h 18m
      Nonstop
      SEA 8:35 AM
      San Francisco - Seattle | Fri, Nov 27 | Delta Air Lines
      US$65
      30% off
      US$93 US$65
    • SFO 1:00 PM
      17h 25m
      1 stop
      SEA 2:00 PM
      San Francisco - Seattle | Thu, Oct 29 | Normal Airline
      Find more flights
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    • 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
      US$89 US$159
      44% off
      44% off
      US$159 US$89
    • 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
      US$92 US$159
      42% off
      42% off
      US$159 US$92
    • 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
      US$127 US$159
      20% off
      20% off
      US$159 US$127
    • 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
      US$127
      20% off
      US$159 US$127
    • 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
      US$127
      20% off
      US$159 US$127
    • 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
      US$127
      20% off
      US$159 US$127
    • 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
      US$127
      20% off
      US$159 US$127
    • 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
      US$127
      20% off
      US$159 US$127
    • 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
      US$127
      20% off
      US$159 US$127
    • 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
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    • Cheapest nonstop
      SFO 6:00 AM
      2h 18m
      Nonstop
      SEA 8:18 AM
      San Francisco - Seattle | Tue, Dec 8 | Delta Air Lines
      US$60 US$467
      87% off
      87% off
      US$467 US$60
    • SFO 6:05 AM
      2h 15m
      Nonstop
      SEA 8:20 AM
      San Francisco - Seattle | Mon, Jan 4 | Delta Air Lines
      US$65 US$467
      86% off
      86% off
      US$467 US$65
    • SFO 2:12 PM
      2h 18m
      Nonstop
      SEA 4:30 PM
      San Francisco - Seattle | Wed, Nov 18 | Delta Air Lines
      US$65 US$467
      86% off
      86% off
      US$467 US$65
    • SFO 6:00 AM
      2h 18m
      Nonstop
      SEA 8:18 AM
      San Francisco - Seattle | Thu, Dec 10 | Delta Air Lines
      US$78
      83% off
      US$467 US$78
    • SFO 8:33 AM
      2h 19m
      Nonstop
      SEA 10:52 AM
      San Francisco - Seattle | Mon, Nov 16 | Alaska Airlines
      US$78
      83% off
      US$467 US$78
    • SFO 5:53 PM
      2h 20m
      Nonstop
      SEA 8:13 PM
      San Francisco - Seattle | Mon, Nov 16 | Delta Air Lines
      US$80
      83% off
      US$467 US$80
    • SFO 5:56 PM
      2h 28m
      Nonstop
      SEA 8:24 PM
      San Francisco - Seattle | Mon, Dec 7 | Delta Air Lines
      US$107
      77% off
      US$467 US$107
    • SFO 8:59 PM
      2h 27m
      Nonstop
      SEA 11:26 PM
      San Francisco - Seattle | Tue, Nov 10 | Delta Air Lines
      US$112
      76% off
      US$467 US$112
    • SFO 6:05 AM
      2h 15m
      Nonstop
      SEA 8:20 AM
      San Francisco - Seattle | Fri, Jan 15 | Delta Air Lines
      US$113
      76% off
      US$467 US$113
    • SFO 1:00 PM
      17h 25m
      1 stop
      SEA 2:00 PM
      San Francisco - Seattle | Thu, Oct 29 | Normal Airline
      Find more flights
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    • Cheapest nonstop
      SFO 5:56 PM
      2h 28m
      Nonstop
      SEA 8:24 PM
      San Francisco - Seattle | Sat, Dec 12 | Delta Air Lines
      US$40 US$93
      56% off
      56% off
      US$93 US$40
    • SFO 8:58 PM
      2h 15m
      Nonstop
      SEA 11:13 PM
      San Francisco - Seattle | Fri, Nov 13 | Alaska Airlines
      US$45 US$93
      52% off
      52% off
      US$93 US$45
    • SFO 6:17 AM
      2h 18m
      Nonstop
      SEA 8:35 AM
      San Francisco - Seattle | Fri, Nov 13 | Delta Air Lines
      US$46 US$93
      51% off
      51% off
      US$93 US$46
    • SFO 8:59 PM
      2h 25m
      Nonstop
      SEA 11:24 PM
      San Francisco - Seattle | Tue, Dec 8 | Delta Air Lines
      US$60
      35% off
      US$93 US$60
    • SFO 6:00 AM
      2h 18m
      Nonstop
      SEA 8:18 AM
      San Francisco - Seattle | Tue, Dec 8 | Delta Air Lines
      US$60
      87% off
      US$467 US$60
    • SFO 10:38 AM
      2h 19m
      Nonstop
      SEA 12:57 PM
      San Francisco - Seattle | Thu, Nov 19 | Delta Air Lines
      US$61
      34% off
      US$93 US$61
    • SFO 12:39 PM
      2h 16m
      Nonstop
      SEA 2:55 PM
      San Francisco - Seattle | Tue, Dec 8 | Alaska Airlines
      US$63
      32% off
      US$93 US$63
    • SFO 6:17 AM
      2h 18m
      Nonstop
      SEA 8:35 AM
      San Francisco - Seattle | Tue, Nov 24 | Delta Air Lines
      US$65
      30% off
      US$93 US$65
    • SFO 6:17 AM
      2h 18m
      Nonstop
      SEA 8:35 AM
      San Francisco - Seattle | Fri, Nov 27 | Delta Air Lines
      US$65
      30% off
      US$93 US$65
    • SFO 1:00 PM
      17h 25m
      1 stop
      SEA 2:00 PM
      San Francisco - Seattle | Thu, Oct 29 | Normal Airline
      Find more flights
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    • Cheapest nonstop
      SFO 8:33 AM
      2h 19m
      Nonstop
      SEA 10:52 AM
      San Francisco - Seattle | Tue, Nov 3 | Alaska Airlines
      US$298 US$492
      39% off
      39% off
      US$492 US$298
    • SFO 10:39 AM
      2h 17m
      Nonstop
      SEA 12:56 PM
      San Francisco - Seattle | Mon, Nov 2 | Alaska Airlines
      US$301 US$492
      39% off
      39% off
      US$492 US$301
    • SFO 10:39 AM
      2h 17m
      Nonstop
      SEA 12:56 PM
      San Francisco - Seattle | Sun, Nov 1 | Alaska Airlines
      US$301 US$492
      39% off
      39% off
      US$492 US$301
    • SFO 4:21 PM
      2h 12m
      Nonstop
      SEA 6:33 PM
      San Francisco - Seattle | Thu, Oct 29 | Alaska Airlines
      US$305
      38% off
      US$492 US$305
    • SFO 6:20 AM
      2h 21m
      Nonstop
      SEA 8:41 AM
      San Francisco - Seattle | Thu, Oct 29 | Delta Air Lines
      US$315
      36% off
      US$492 US$315
    • SFO 2:15 PM
      2h 22m
      Nonstop
      SEA 4:37 PM
      San Francisco - Seattle | Tue, Nov 3 | Delta Air Lines
      US$316
      36% off
      US$492 US$316
    • SFO 9:43 AM
      2h 12m
      Nonstop
      SEA 11:55 AM
      San Francisco - Seattle | Thu, Oct 29 | American Airlines
      US$350
      28% off
      US$492 US$350
    • SFO 5:45 PM
      2h 19m
      Nonstop
      SEA 8:04 PM
      San Francisco - Seattle | Mon, Nov 2 | Delta Air Lines
      US$373
      24% off
      US$492 US$373
    • SFO 11:00 AM
      2h 16m
      Nonstop
      SEA 1:16 PM
      San Francisco - Seattle | Sat, Oct 31 | Alaska Airlines
      US$378
      23% off
      US$492 US$378
    • SFO 1:00 PM
      17h 25m
      1 stop
      SEA 2:00 PM
      San Francisco - Seattle | Thu, Oct 29 | Normal Airline
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    • SFO 12:19 PM
      1h 59m
      Nonstop
      SEA 2:18 PM
      San Francisco - Seattle | Sun, Dec 6 | United Airlines
      US$235 US$360
      35% off
      35% off
      US$360 US$235
    • SFO 6:40 PM
      2h 8m
      Nonstop
      SEA 8:48 PM
      San Francisco - Seattle | Fri, Jan 22 | United Airlines
      US$124 US$360
      66% off
      66% off
      US$360 US$124
    • SFO 6:32 PM
      2h 8m
      Nonstop
      SEA 8:40 PM
      San Francisco - Seattle | Fri, Jan 1 | United Airlines
      US$127 US$360
      65% off
      65% off
      US$360 US$127
    • SFO 6:32 PM
      2h 8m
      Nonstop
      SEA 8:40 PM
      San Francisco - Seattle | Tue, Dec 29 | United Airlines
      US$174
      52% off
      US$360 US$174
    • SFO 6:32 PM
      2h 8m
      Nonstop
      SEA 8:40 PM
      San Francisco - Seattle | Fri, Dec 25 | United Airlines
      US$175
      51% off
      US$360 US$175
    • SFO 6:40 PM
      2h 8m
      Nonstop
      SEA 8:48 PM
      San Francisco - Seattle | Fri, Jan 15 | United Airlines
      US$211
      41% off
      US$360 US$211
    • SFO 6:32 PM
      2h 8m
      Nonstop
      SEA 8:40 PM
      San Francisco - Seattle | Sat, Dec 26 | United Airlines
      US$212
      41% off
      US$360 US$212
    • SFO 6:32 PM
      2h 8m
      Nonstop
      SEA 8:40 PM
      San Francisco - Seattle | Tue, Dec 22 | United Airlines
      US$233
      35% off
      US$360 US$233
    • SFO 6:32 PM
      2h 8m
      Nonstop
      SEA 8:40 PM
      San Francisco - Seattle | Sun, Dec 20 | United Airlines
      US$234
      35% off
      US$360 US$234
    • SFO 1:00 PM
      17h 25m
      1 stop
      SEA 2:00 PM
      San Francisco - Seattle | Thu, Oct 29 | Normal Airline
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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 US$155. Try to avoid June, when prices are highest, averaging around US$234.

US$234
US$195
US$155
US$116
    Cheapest
  • US$164
    Oct
  • US$174
    Nov
  • US$182
    Dec
  • US$155
    Jan
  • US$175
    Feb
  • US$213
    Mar
  • US$183
    Apr
  • US$226
    May
  • US$234
    Jun
  • US$208
    Jul
  • US$197
    Aug
  • US$189
    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 US$207. In contrast, June is typically the most expensive month, with average prices reaching US$433.

US$433
US$320
US$207
US$94
    Cheapest
  • US$266
    Oct
  • US$378
    Nov
  • US$274
    Dec
  • US$207
    Jan
  • US$244
    Feb
  • US$313
    Mar
  • US$294
    Apr
  • US$388
    May
  • US$433
    Jun
  • US$392
    Jul
  • US$319
    Aug
  • US$323
    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.

US$230
US$197
US$164
US$131
  • US$183
    Mon
  • US$164
    Tue
  • US$169
    Wed
  • US$204
    Thu
  • US$230
    Fri
  • US$201
    Sat
  • US$209
    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 US$40) among 6 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Delta Air Lines
From US$40
Alaska Airlines
From US$45
Frontier Airlines
From US$75
American Airlines
From US$89
United Airlines
From US$103
Hahn Air
From US$113

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. AS580

    San Francisco International Airport

    10:39 AM

    SFO

    2h 17m

    12:56 PM

    SEA

    S M T W T F S
    Search

  5. DL2721

    San Francisco International Airport

    6:05 AM

    SFO

    2h 15m

    8:20 AM

    SEA

    S M T W T F S
    Search

  6. AS1327

    San Francisco International Airport

    7:45 PM

    SFO

    2h 14m

    9:59 PM

    SEA

    S M T W T F S
    Search

  7. AS1340

    San Francisco International Airport

    5:42 PM

    SFO

    2h 12m

    7:54 PM

    SEA

    S M T W T - S
    Search

  8. DL1412

    San Francisco International Airport

    2:15 PM

    SFO

    2h 22m

    4:37 PM

    SEA

    S M T W T F S
    Search

  9. DL3991

    San Francisco International Airport

    8:58 PM

    SFO

    2h 15m

    11:13 PM

    SEA

    - - T W T - -
    Search

  10. DL3707

    San Francisco International Airport

    5:45 PM

    SFO

    2h 19m

    8:04 PM

    SEA

    S M T W T F S
    Search
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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 US$40
Cheapest return ticket price US$89

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 US$390 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 US$40, and round-trip fares start from US$89. 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 US$172. 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 US$40. 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.

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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.