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Flights from San Francisco to Seattle

Find the cheapest direct flight options from San Francisco to Seattle over the next three months. Book one-way tickets from CAD 93 and round-trip tickets from CAD 227.

      • Cheapest nonstop
        SFO 09:00
        2h 15m
        Direct
        SEA 11:15
        San Francisco - Seattle | Sat, Aug 22 | Alaska Airlines
        SEA 07:18
        2h 19m
        Direct
        SFO 09:37
        Seattle - San Francisco | Wed, Aug 26 | Alaska Airlines
        CAD 227 CAD 355
        36% off
        36% off
        CAD 355 CAD 227
      • SFO 10:40
        2h 11m
        Direct
        SEA 12:51
        San Francisco - Seattle | Sat, Aug 22 | Delta Air Lines
        SEA 07:18
        2h 19m
        Direct
        SFO 09:37
        Seattle - San Francisco | Wed, Aug 26 | Alaska Airlines
        CAD 234 CAD 355
        34% off
        34% off
        CAD 355 CAD 234
      • SFO 16:10
        2h 19m
        Direct
        SEA 18:29
        San Francisco - Seattle | Sat, Aug 22 | United Airlines
        SEA 17:20
        2h 22m
        Direct
        SFO 19:42
        Seattle - San Francisco | Wed, Aug 26 | United Airlines
        CAD 240 CAD 355
        32% off
        32% off
        CAD 355 CAD 240
      • SFO 06:03
        2h 10m
        Direct
        SEA 08:13
        San Francisco - Seattle | Fri, Aug 21 | Alaska Airlines
        SEA 07:18
        2h 19m
        Direct
        SFO 09:37
        Seattle - San Francisco | Sun, Aug 23 | Alaska Airlines
        CAD 240
        32% off
        CAD 355 CAD 240
      • SFO 16:10
        2h 19m
        Direct
        SEA 18:29
        San Francisco - Seattle | Sat, Aug 15 | United Airlines
        SEA 09:05
        2h 19m
        Direct
        SFO 11:24
        Seattle - San Francisco | Mon, Aug 17 | United Airlines
        CAD 240
        32% off
        CAD 355 CAD 240
      • SFO 17:36
        2h 19m
        Direct
        SEA 19:55
        San Francisco - Seattle | Sat, Aug 29 | Delta Air Lines
        SEA 07:20
        2h 16m
        Direct
        SFO 09:36
        Seattle - San Francisco | Mon, Aug 31 | Delta Air Lines
        CAD 244
        31% off
        CAD 355 CAD 244
      • SFO 09:03
        2h 19m
        Direct
        SEA 11:22
        San Francisco - Seattle | Sat, Aug 29 | Alaska Airlines
        SEA 21:25
        2h 15m
        Direct
        SFO 23:40
        Seattle - San Francisco | Mon, Aug 31 | Alaska Airlines
        CAD 246
        31% off
        CAD 355 CAD 246
      • SFO 18:21
        2h 11m
        Direct
        SEA 20:32
        San Francisco - Seattle | Fri, Sep 4 | Alaska Airlines
        SEA 20:35
        2h 15m
        Direct
        SFO 22:50
        Seattle - San Francisco | Wed, Sep 9 | Alaska Airlines
        CAD 259
        27% off
        CAD 355 CAD 259
      • SFO 06:00
        2h 8m
        Direct
        SEA 08:08
        San Francisco - Seattle | Wed, Sep 2 | Alaska Airlines
        SEA 10:40
        2h 16m
        Direct
        SFO 12:56
        Seattle - San Francisco | Wed, Sep 9 | Alaska Airlines
        CAD 259
        27% off
        CAD 355 CAD 259
      • SFO 13:00
        17h 25m
        1 stop
        SEA 14:00
        San Francisco - Seattle | Wed, Jul 15 | Normal Airline
        SEA 15:00
        6h
        Direct
        SFO 16:00
        Seattle - San Francisco | Fri, Jul 17 | Normal Airline
        Find more flights
        Find more flights
      • Cheapest nonstop
        SFO 07:00
        2h 8m
        Direct
        SEA 09:08
        San Francisco - Seattle | Sat, Sep 5 | Alaska Airlines
        CAD 93 CAD 148
        37% off
        37% off
        CAD 148 CAD 93
      • SFO 20:59
        2h 20m
        Direct
        SEA 23:19
        San Francisco - Seattle | Sat, Sep 5 | Delta Air Lines
        CAD 99 CAD 148
        33% off
        33% off
        CAD 148 CAD 99
      • SFO 20:28
        2h 13m
        Direct
        SEA 22:41
        San Francisco - Seattle | Fri, Aug 28 | Alaska Airlines
        CAD 103 CAD 148
        30% off
        30% off
        CAD 148 CAD 103
      • SFO 09:00
        2h 15m
        Direct
        SEA 11:15
        San Francisco - Seattle | Sat, Aug 22 | Alaska Airlines
        CAD 103
        30% off
        CAD 148 CAD 103
      • SFO 20:28
        2h 13m
        Direct
        SEA 22:41
        San Francisco - Seattle | Fri, Aug 21 | Alaska Airlines
        CAD 103
        30% off
        CAD 148 CAD 103
      • SFO 19:22
        2h 18m
        Direct
        SEA 21:40
        San Francisco - Seattle | Tue, Sep 1 | Alaska Airlines
        CAD 103
        30% off
        CAD 148 CAD 103
      • SFO 20:59
        2h 20m
        Direct
        SEA 23:19
        San Francisco - Seattle | Fri, Sep 11 | Delta Air Lines
        CAD 107
        28% off
        CAD 148 CAD 107
      • SFO 10:40
        2h 11m
        Direct
        SEA 12:51
        San Francisco - Seattle | Sat, Aug 22 | Delta Air Lines
        CAD 107
        28% off
        CAD 148 CAD 107
      • SFO 10:36
        2h 15m
        Direct
        SEA 12:51
        San Francisco - Seattle | Fri, Sep 11 | Alaska Airlines
        CAD 107
        28% off
        CAD 148 CAD 107
      • SFO 20:28
        2h 13m
        Direct
        SEA 22:41
        San Francisco - Seattle | Sat, Jul 18 | Alaska Airlines
        CAD 108
        27% off
        CAD 148 CAD 108
      • SFO 13:00
        17h 25m
        1 stop
        SEA 14:00
        San Francisco - Seattle | Wed, Jul 15 | Normal Airline
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        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.

Find Cheapest Airlines Flying from San Francisco to Seattle

Choose from 2 airlines flying from San Francisco to Seattle, including Alaska Airlines, Delta Air Lines and . Alaska Airlines currently offers the cheapest ticket on this route.
Alaska Airlines logo Alaska Airlines
Delta Air Lines logo Delta Air Lines
Airlines are determined based on actual purchased flight tickets from San Francisco to Seattle according to previous 12 months data from Trip.com.

Flight Information for San Francisco to Seattle Flights

The distance between San Francisco and Seattle is 1,093.2km. It takes around 2 hours 27 minutes on average to fly from San Francisco to Seattle. Based on Trip.com's data, travel demand peaks in July. The off-season for travel is November.

Cheapest one-way flight priceCAD 93
Cheapest return ticket priceCAD 227
Off-season travel monthNovember
Peak season for travelJuly
Flight distance1,093.2km
Average flight time2 hours 27 minutes
Popular airlineAlaska Airlines
Flight statistics for the San Francisco–Seattle route are based on aggregated booking data from Trip.com over the past 12 months.

Trip.com price insights on flights from San Francisco to Seattle

What is the cheapest month for one-way flights from San Francisco to Seattle?

The average one way ticket price paid by Trip.com users from San Francisco to Seattle in each month over the past 12 months.

Based on Trip.com data, the cheapest month to fly from San Francisco to Seattle is October, with an average price of CAD 209. The most expensive month is usually June, with average prices reaching CAD 325.

CAD 325
CAD 267
CAD 209
CAD 151
    Cheapest
  • CAD 266
    Jul
  • CAD 239
    Aug
  • CAD 224
    Sep
  • CAD 209
    Oct
  • CAD 242
    Nov
  • CAD 253
    Dec
  • CAD 216
    Jan
  • CAD 244
    Feb
  • CAD 296
    Mar
  • CAD 254
    Apr
  • CAD 314
    May
  • CAD 325
    Jun

What is the cheapest month for return flights from San Francisco to Seattle?

Average price of return flights from San Francisco to Seattle purchased by Trip.com users by month over the past 12 months

Based on Trip.com's historical data, January is often the cheapest month for fly from San Francisco to Seattle, with an average price of CAD 288. June is usually the most expensive period, with prices averaging as high as CAD 603.

CAD 603
CAD 446
CAD 288
CAD 131
    Cheapest
  • CAD 490
    Jul
  • CAD 399
    Aug
  • CAD 376
    Sep
  • CAD 426
    Oct
  • CAD 526
    Nov
  • CAD 381
    Dec
  • CAD 288
    Jan
  • CAD 339
    Feb
  • CAD 435
    Mar
  • CAD 409
    Apr
  • CAD 540
    May
  • CAD 603
    Jun

Which day of the week is cheapest to fly from San Francisco to Seattle?

Data is based on the past 12 months and shows the average weekly airfare from San Francisco to Seattle on different days of the week according to Trip.com.

Based on Trip.com data from the past 12 months, the cheapest day to fly from San Francisco to Seattle is Tuesday. The average fare on this day is usually lower than on other days. Try to avoid flying on Friday as fares are usually the highest.

CAD 298
CAD 252
CAD 206
CAD 160
  • CAD 240
    Mon
  • CAD 206
    Tue
  • CAD 221
    Wed
  • CAD 284
    Thu
  • CAD 298
    Fri
  • CAD 251
    Sat
  • CAD 297
    Sun

Flight FAQs

  • Which airlines offer the cheapest flights from San Francisco (SFO) to Seattle (SEA)?

    Based on Trip.com data, Alaska Airlines offers one-way fares as low as CAD 93 on Cheapest nonstop routes (e.g. SFO to SEA on Sat, Sep 5), while Alaska Airlines offers Cheapest nonstop round-trips from CAD 227 departing on Sat, Aug 22 and returning on Wed, Aug 26.
  • At the moment, you can catch a direct flight from San Francisco to Seattle with the following airlines, including: Alaska Airlines Delta Air Lines 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 27 minutes to fly from San Francisco (SFO) to Seattle (SEA).
  • 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 137 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 -- AS068 (07:08)
  • 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 Sat, Sep 5, with one-way flights priced at just CAD 93.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Alaska Airlines.
    · 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 July flight calendar, it's currently cheapest to fly from San Francisco to Seattle on July 23, 2026 with Delta Air Lines, with prices starting at CAD 182.
  • 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 cancelled 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.

Trip.com airline insights on flights from San Francisco to Seattle

Which airlines offer the cheapest direct flights from San Francisco to Seattle?

Data is based on the past 12 months and reflects the average fare of all direct flights from San Francisco to Seattle on Trip.com.

Based on Trip.com data from the past 12 months, the airline offering the cheapest direct flights from San Francisco to Seattle is Frontier Airlines, with an average fare of CAD 225.

CAD 183
CAD 225
CAD 267
CAD 309
CAD 351
Frontier Airlines
CAD 225
Frontier Airlines
Delta Air Lines
CAD 246
Delta Air Lines
Alaska Airlines
CAD 270
Alaska Airlines
Hawaiian Airlines
CAD 277
Hawaiian Airlines
United Airlines
CAD 347
United Airlines
American Airlines
CAD 351
American Airlines

Which airlines operate the most flights from San Francisco to Seattle?

The data is based on the past month and shows the number of flights each airline has from San Francisco to Seattle on Trip.com.

According to Trip.com data from the past month, the airline with the most flights from San Francisco to Seattle is Alaska Airlines, operating 66 flights per week.

32
43
55
66
Alaska Airlines
66
Alaska Airlines
United Airlines
60
United Airlines
Air New Zealand
58
Air New Zealand
Virgin Australia
58
Virgin Australia
Qatar Airways
55
Qatar Airways
American Airlines
43
American Airlines

How many flights fly from San Francisco to Seattle each day?

The data is based on the past month and shows the number of flights per day of the week from San Francisco to Seattle on Trip.com.

Based on Trip.com data from the past month, flights from San Francisco to Seattle are most frequent on Friday, while the fewest flights operate on Monday.

521
459
397
335
Highest
397
Mon
410
Tue
407
Wed
406
Thu
521
Fri
468
Sat
471
Sun

Discover More Top Flights

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 on 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, Wi-Fi, 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 the 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.