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Low Price Flights from San Francisco to Seattle

Find Cheapest Airlines Flying from San Francisco to Seattle

Choose from 2 carriers that fly from San Francisco to Seattle, including Alaska Airlines, Hawaiian Airlines, Enjoy the cheapest tickets on this route with Delta Air Lines.
Alaska Airlines logo Alaska Airlines
Hawaiian Airlines logo Hawaiian Airlines
Airlines are determined based on actual purchased flight tickets from San Francisco to Seattle according to previous 12 months data from Trip.com.

Explore the cheapest flights from San Francisco to Seattle in the next three months. Based on Trip.com's data from the latest 7 days, one-way direct flights start at AU$ 56, and round-trip direct tickets start at AU$ 119.

      • Cheapest nonstop
        SFO 10:32
        2h 23m
        Direct
        SEA 12:55
        San Francisco - Seattle | Wed, Apr 29 | Delta Air Lines
        SEA 21:20
        2h 17m
        Direct
        SFO 23:37
        Seattle - San Francisco | Tue, May 5 | Delta Air Lines
        AU$ 119 AU$ 140
        15% off
        15% off
        AU$ 140 AU$ 119
      • SFO 10:25
        2h 19m
        Direct
        SEA 12:44
        San Francisco - Seattle | Wed, Apr 29 | Alaska Airlines
        SEA 14:53
        2h 21m
        Direct
        SFO 17:14
        Seattle - San Francisco | Tue, May 5 | Alaska Airlines
        AU$ 120 AU$ 140
        14% off
        14% off
        AU$ 140 AU$ 120
      • SFO 07:00
        2h 17m
        Direct
        SEA 09:17
        San Francisco - Seattle | Wed, Mar 18 | Hawaiian Airlines
        SEA 21:42
        2h 17m
        Direct
        SFO 23:59
        Seattle - San Francisco | Fri, Mar 20 | Hawaiian Airlines
        AU$ 123 AU$ 140
        12% off
        12% off
        AU$ 140 AU$ 123
      • SFO 12:26
        2h 16m
        Direct
        SEA 14:42
        San Francisco - Seattle | Wed, Apr 22 | Alaska Airlines
        SEA 21:24
        2h 20m
        Direct
        SFO 23:44
        Seattle - San Francisco | Fri, Apr 24 | Alaska Airlines
        AU$ 124
        11% off
        AU$ 140 AU$ 124
      • SFO 07:00
        2h 17m
        Direct
        SEA 09:17
        San Francisco - Seattle | Sun, May 10 | Alaska Airlines
        SEA 15:48
        2h 21m
        Direct
        SFO 18:09
        Seattle - San Francisco | Tue, May 12 | Alaska Airlines
        AU$ 124
        11% off
        AU$ 140 AU$ 124
      • SFO 11:13
        2h 19m
        Direct
        SEA 13:32
        San Francisco - Seattle | Tue, Apr 14 | Hawaiian Airlines
        SEA 20:10
        2h 17m
        Direct
        SFO 22:27
        Seattle - San Francisco | Tue, Apr 21 | Hawaiian Airlines
        AU$ 125
        11% off
        AU$ 140 AU$ 125
      • SFO 11:13
        2h 19m
        Direct
        SEA 13:32
        San Francisco - Seattle | Wed, Apr 15 | Hawaiian Airlines
        SEA 20:10
        2h 17m
        Direct
        SFO 22:27
        Seattle - San Francisco | Tue, Apr 21 | Hawaiian Airlines
        AU$ 125
        11% off
        AU$ 140 AU$ 125
      • SFO 07:00
        2h 17m
        Direct
        SEA 09:17
        San Francisco - Seattle | Wed, Mar 18 | Alaska Airlines
        SEA 21:42
        2h 17m
        Direct
        SFO 23:59
        Seattle - San Francisco | Fri, Mar 20 | Hawaiian Airlines
        AU$ 125
        11% off
        AU$ 140 AU$ 125
      • SFO 21:10
        2h 19m
        Direct
        SEA 23:29
        San Francisco - Seattle | Thu, May 7 | Alaska Airlines
        SEA 11:50
        2h 31m
        Direct
        SFO 14:21
        Seattle - San Francisco | Tue, May 12 | Alaska Airlines
        AU$ 125
        11% off
        AU$ 140 AU$ 125
      • SFO 11:13
        2h 19m
        Direct
        SEA 13:32
        San Francisco - Seattle | Wed, Apr 15 | Alaska Airlines
        SEA 07:03
        2h 17m
        Direct
        SFO 09:20
        Seattle - San Francisco | Sat, Apr 18 | Alaska Airlines
        AU$ 126
        10% off
        AU$ 140 AU$ 126
      • SFO 13:00
        17h 25m
        1 stop
        SEA Invalid Date
        San Francisco - Seattle | Mon, Mar 16 | Normal Airline
        SEA 15:00
        6h
        Direct
        SFO 16:00
        Seattle - San Francisco | Wed, Mar 18 | Normal Airline
        Find more flights
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      • Cheapest nonstop
        SFO 06:00
        2h 16m
        Direct
        SEA 08:16
        San Francisco - Seattle | Thu, Apr 9 | Delta Air Lines
        AU$ 56 AU$ 76
        26% off
        26% off
        AU$ 76 AU$ 56
      • SFO 06:00
        2h 16m
        Direct
        SEA 08:16
        San Francisco - Seattle | Wed, Apr 8 | Delta Air Lines
        AU$ 57 AU$ 76
        25% off
        25% off
        AU$ 76 AU$ 57
      • SFO 05:59
        2h 20m
        Direct
        SEA 08:19
        San Francisco - Seattle | Thu, Apr 23 | Delta Air Lines
        AU$ 61 AU$ 76
        20% off
        20% off
        AU$ 76 AU$ 61
      • SFO 05:55
        2h 18m
        Direct
        SEA 08:13
        San Francisco - Seattle | Sun, May 3 | Delta Air Lines
        AU$ 61
        20% off
        AU$ 76 AU$ 61
      • SFO 05:55
        2h 22m
        Direct
        SEA 08:17
        San Francisco - Seattle | Sun, May 10 | Delta Air Lines
        AU$ 62
        18% off
        AU$ 76 AU$ 62
      • SFO 17:31
        2h 15m
        Direct
        SEA 19:46
        San Francisco - Seattle | Mon, Apr 27 | Alaska Airlines
        AU$ 63
        17% off
        AU$ 76 AU$ 63
      • SFO 17:31
        2h 15m
        Direct
        SEA 19:46
        San Francisco - Seattle | Tue, May 12 | Alaska Airlines
        AU$ 63
        17% off
        AU$ 76 AU$ 63
      • SFO 21:10
        2h 19m
        Direct
        SEA 23:29
        San Francisco - Seattle | Thu, Apr 23 | Alaska Airlines
        AU$ 64
        16% off
        AU$ 76 AU$ 64
      • SFO 09:00
        2h 22m
        Direct
        SEA 11:22
        San Francisco - Seattle | Sun, May 10 | Alaska Airlines
        AU$ 65
        14% off
        AU$ 76 AU$ 65
      • SFO 05:59
        2h 20m
        Direct
        SEA 08:19
        San Francisco - Seattle | Mon, Apr 27 | Delta Air Lines
        AU$ 68
        11% off
        AU$ 76 AU$ 68
      • SFO 13:00
        17h 25m
        1 stop
        SEA Invalid Date
        San Francisco - Seattle | Mon, Mar 16 | 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.

San Francisco to Seattle Flight Details

The distance between San Francisco and Seattle is approximately 1,093.2km. It takes around 2 hours 17 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 priceAU$ 56
Cheapest return ticket priceAU$ 119
Off-season for travelNovember
Peak season for travelJuly
Flight distance1,093.2km
Average flight time2 hours 17 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?

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

According to Trip.com's data, the cheapest month for flights from San Francisco to Seattle is October, with an average price of AU$ 207. Conversely, the most expensive month is typically December, with an average price of up to AU$ 251.

AU$ 251
AU$ 229
AU$ 207
AU$ 185
    Cheapest
  • AU$ 249
    Mar
  • AU$ 246
    Apr
  • AU$ 224
    May
  • AU$ 221
    Jun
  • AU$ 238
    Jul
  • AU$ 236
    Aug
  • AU$ 222
    Sep
  • AU$ 207
    Oct
  • AU$ 240
    Nov
  • AU$ 251
    Dec
  • AU$ 214
    Jan
  • AU$ 242
    Feb

What is the cheapest month for round-trip flights from San Francisco to Seattle?

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

According to historical data from Trip.com, the lowest prices for flights from San Francisco to Seattle are found during January, with an average price of AU$ 285. Conversely, the highest prices are found during November, with an average price of up to AU$ 521.

AU$ 521
AU$ 403
AU$ 285
AU$ 167
    Cheapest
  • AU$ 500
    Mar
  • AU$ 410
    Apr
  • AU$ 398
    May
  • AU$ 410
    Jun
  • AU$ 463
    Jul
  • AU$ 395
    Aug
  • AU$ 372
    Sep
  • AU$ 422
    Oct
  • AU$ 521
    Nov
  • AU$ 378
    Dec
  • AU$ 285
    Jan
  • AU$ 336
    Feb

What's the cheapest day to fly from San Francisco to Seattle?

Data is based on the average flight price for each day of the week from San Francisco to Seattle on Trip.com over the past 12 months.

Based on Trip.com data from the past 12 months, the cheapest day to fly from San Francisco to Seattle is Wednesday, with average prices lower than on other days. Avoid Sunday, as prices are usually highest then.

AU$ 270
AU$ 231
AU$ 192
AU$ 153
    Cheapest
  • AU$ 213
    Mon
  • AU$ 204
    Tue
  • AU$ 192
    Wed
  • AU$ 243
    Thu
  • AU$ 268
    Fri
  • AU$ 226
    Sat
  • AU$ 270
    Sun

When is the cheapest day to fly from San Francisco to Seattle during Good Friday?

Data is based on the lowest one-way fares from San Francisco to Seattle during Good Friday, sourced from the Trip.com database over the last 3 days.

During Good Friday, the cheapest flights from San Francisco to Seattle are on Mar 31, with the lowest fare of AU$ 106.

AU$ 208
AU$ 157
AU$ 106
AU$ 55
  • AU$ 208
    Mar 30
  • AU$ 106
    Mar 31
  • AU$ 139
    Apr 1
  • AU$ 162
    Apr 2
  • AU$ 200
    Apr 3
  • AU$ 192
    Apr 4
  • AU$ 141
    Apr 5

Flight FAQs

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

    Based on Trip.com data, Delta Air Lines offers one-way fares as low as AU$ 56 on Cheapest nonstop routes (e.g. SFO to SEA on Thu, Apr 9), while Delta Air Lines offers Cheapest nonstop round-trips from AU$ 119 departing on Wed, Apr 29 and returning on Tue, May 5.
  • At the moment, you can catch a direct flight from San Francisco to Seattle with the following airlines, including: Alaska Airlines Hawaiian 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 17 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 117 flight per week flying from San Francisco to Seattle. You can check the weekly schedule for popular airlines on this route below: Hawaiian Airlines: S/M/T/W/T/F/S -- HA6931 (06:41)
  • 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 Thu, Apr 9, with one-way flights priced at just AU$ 56.
    · 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 March flight calendar, it's currently cheapest to fly from San Francisco to Seattle on March 24, 2026 with Delta Air Lines, with prices starting at AU$ 65.
  • 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 - Lake Union (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 toSeattle

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

Data is based on the average price of all nonstop flights from San Francisco to Seattle on Trip.com in the past 12 months.

Based on Trip.com data from the past 12 months, Frontier Airlines offers the cheapest nonstop flights from San Francisco to Seattle, with an average price of AU$ 198.

AU$ 157
AU$ 198
AU$ 239
AU$ 280
AU$ 321
Frontier Airlines
AU$ 198
Frontier Airlines
Delta Air Lines
AU$ 235
Delta Air Lines
American Airlines
AU$ 235
American Airlines
Alaska Airlines
AU$ 260
Alaska Airlines
Hawaiian Airlines
AU$ 267
Hawaiian Airlines
United Airlines
AU$ 321
United Airlines

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

Data is based on the number of flights from San Francisco to Seattle operated by each airline on Trip.com in the past month.

Based on Trip.com data from the past month, Alaska Airlines operates the most flights from San Francisco to Seattle, with 54 flight per week.

38
43
49
54
Alaska Airlines
54
Alaska Airlines
Air Tahiti Nui
53
Air Tahiti Nui
Hawaiian Airlines
53
Hawaiian Airlines
Qatar Airways
48
Qatar Airways
United Airlines
45
United Airlines
Virgin Australia
43
Virgin Australia

How many flights are there each day from San Francisco to Seattle?

The data is based on the flight numbers for each day of the week from San Francisco to Seattle within the Trip.com database over the past month.

Based on Trip.com data from the past month, the most flights from San Francisco to Seattle depart on Friday, and the fewest flights depart on Tuesday.

459
393
326
260
Highest
396
Mon
326
Tue
334
Wed
393
Thu
459
Fri
439
Sat
415
Sun

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Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

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Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, regulatory fees, etc) with all fees confirmed before payment. Fees for baggage, 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 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.