Cheap flights from San Francisco to Seattle

Flights overview

Useful information for finding cheap flights from San Francisco to Seattle and booking your next trip
Cheapest round-trip flights $147
United Nonstop 3 hr Sat, May 30 — Mon, Jun 1
The cheapest round-trip flight from San Francisco to Seattle is currently $147
Cheapest one-way flight $69
Alaska Nonstop 3 hr Wed, Jul 8
The cheapest one-way flight from San Francisco to Seattle is currently $69
Last-minute weekend getaway $351
Frontier 1 stop 7 hr Thu, Apr 30 — Mon, May 4
The cheapest last-minute weekend getaway from San Francisco to Seattle is currently $351
Cheapest business class flights $408
Frontier 1 stop 10 hr Thu, May 28 — Mon, Jun 1
The cheapest business class round-trip flight from San Francisco to Seattle is currently $408
Fastest flight 2 hr 8 min The fastest nonstop flight from San Francisco to Seattle takes 2 hr 8 min
Nonstop flights Every day There are direct flights on this route every day.

When is the cheapest time to fly?

The cheapest month to fly from San Francisco to Seattle is typically January. The most expensive month to fly is typically July.
January
Cheapest
Typical prices: $95–305
July
Most expensive
Typical prices: $200–335

Popular airlines from San Francisco to Seattle

  • Alaska
    Nonstop
    from $215
    Typical price: $145–375
    58 weekly nonstop flights
    SFO - SEA Every day
    413 weekly connecting flights
    SFO - SEA Every day
  • United
    Nonstop
    from $147
    Typical price: $135–380
    35 weekly nonstop flights
    SFO - SEA Every day
    85 weekly connecting flights
    SFO - SEA Every day
  • Delta
    Nonstop
    from $147
    Typical price: $130–420
    34 weekly nonstop flights
    SFO - SEA Every day
    110 weekly connecting flights
    SFO - SEA Every day
  • Southwest
    from $209
    Typical price: $210–475
    179 weekly connecting flights
    SFO - SEA Every day
  • American
    from $317
    Typical price: $235–510
    25 weekly connecting flights
    SFO - SEA Every day
  • Frontier
    from $180
    Typical price: $180–470
    20 weekly connecting flights
    SFO - SEA Every day

Popular airports near San Francisco

  • San Francisco International Airport (SFO)
    San Francisco United States 20 min 11 mi
  • Oakland San Francisco Bay Airport (OAK)
    Oakland United States 28 min 11 mi
  • Sacramento International Airport (SMF)
    Sacramento United States 1 hr 35 min 78 mi
  • San Jose Mineta International Airport (SJC)
    San Jose United States 52 min 39 mi

Popular airports near Seattle

  • Seattle-Tacoma International Airport (SEA)
    Seattle United States 18 min 11 mi
  • Portland International Airport (PDX)
    Portland United States 2 hr 44 min 140 mi
  • Paine Field (PAE)
    Everett United States 31 min 21 mi
  • King County International Airport - Boeing Field (BFI)
    Seattle United States 11 min 5 mi

Frequently asked questions about flying from San Francisco to Seattle

The cheapest flights from San Francisco to Seattle are usually in January. Typical ticket prices in January range from $95 to $305.
The cheapest round-trip flight from San Francisco to Seattle recently found on Google Flights was with United from $147. The cheapest one-way flight was with Alaska from $69.

Some of the cheapest round-trip deals we found with different airlines:
  • The cheapest Alaska flight from San Francisco to Seattle is $215, flying from May 28 to May 31.
  • The cheapest United flight from San Francisco to Seattle is $147, flying from May 30 to Jun 1.
  • The cheapest Delta flight from San Francisco to Seattle is $147, flying from May 30 to Jun 1.
  • The cheapest Southwest flight from San Francisco to Seattle is $209, flying from Jun 5 to Jun 8.
  • The cheapest American flight from San Francisco to Seattle is $317, flying from May 28 to May 31.
  • The cheapest Frontier flight from San Francisco to Seattle is $180, flying from May 28 to May 31.
The cheapest round-trip flight from San Francisco to Seattle starts at $147 from Sat, May 30 to Mon, Jun 1. The cheapest one-way flight starts at $69 and departs on Wed, Jul 8.
2 hr 8 min is the shortest flight time from San Francisco to Seattle.
Most visitors come May–Sep, a period encompassing events such as the Seattle International Film Festival (May); Seafair (Jul), a summer festival including boat races, marathons and parades; and Bumbershoot (Sep), an international music and arts festival. Rainy season is Nov–May, though rain is possible year-round.
It's easy to use Google Flights to find the cheapest days to fly from San Francisco to Seattle.
Just click the Departure label near the top of the page to open the calendar. Choose a start date and a return date to see how the round-trip fare changes on those specific days.
Adjust the trip type to see one-way fares. The cheapest available flights are highlighted and easy to spot. Once you settle on dates, click the Search button to see flight options and book the deal.

You can also turn on price tracking to get alerts if the price changes for a route or flight.
What counts as the best airline for your flights from San Francisco to Seattle really depends on your individual needs. You may have a favorite carrier or a loyalty program you like, but price, convenience, and airports served also come into play. Flexibility and booking terms – Can you change flights if you want to stay longer or get a refund if you have to postpone your trip? – are also factors that help determine which airline is best to fly from San Francisco to Seattle.

In terms of nonstop flights, Alaska is the most popular. Alaska offers 58 nonstop flights and 413 connecting flights per week. Alaska flies from San Francisco International Airport (SFO) to Seattle-Tacoma International Airport (SEA) .

Other popular airlines flying from San Francisco to Seattle are:
  • United offers 35 nonstop flights and 85 connecting flights per week. United flies from San Francisco International Airport (SFO) to Seattle-Tacoma International Airport (SEA) .
  • Delta offers 34 nonstop flights and 110 connecting flights per week. Delta flies from San Francisco International Airport (SFO) to Seattle-Tacoma International Airport (SEA) .
  • Southwest offers 179 connecting flights per week. Southwest flies from San Francisco International Airport (SFO) to Seattle-Tacoma International Airport (SEA) .
  • American offers 25 connecting flights per week. American flies from San Francisco International Airport (SFO) to Seattle-Tacoma International Airport (SEA) .
  • Frontier offers 20 connecting flights per week. Frontier flies from San Francisco International Airport (SFO) to Seattle-Tacoma International Airport (SEA) .
The number of connecting flights refers to distinct flights with at least one stop between San Francisco and Seattle.
The cheapest round-trip flight from San Francisco to Seattle recently found on Google Flights was with United from $147. The cheapest one-way flight was with Alaska from $69.

Some of the cheapest round-trip deals we found with different airlines:
  • The cheapest Alaska flight from San Francisco to Seattle is $215, flying from May 28 to May 31.
  • The cheapest United flight from San Francisco to Seattle is $147, flying from May 30 to Jun 1.
  • The cheapest Delta flight from San Francisco to Seattle is $147, flying from May 30 to Jun 1.
  • The cheapest Southwest flight from San Francisco to Seattle is $209, flying from Jun 5 to Jun 8.
  • The cheapest American flight from San Francisco to Seattle is $317, flying from May 28 to May 31.
  • The cheapest Frontier flight from San Francisco to Seattle is $180, flying from May 28 to May 31.
Alaska, United and Delta fly direct from San Francisco to Seattle.
  • There are 58 Alaska direct flights from San Francisco to Seattle per week. Flights are available every day.
  • There are 35 United direct flights from San Francisco to Seattle per week. Flights are available every day.
  • There are 34 Delta direct flights from San Francisco to Seattle per week. Flights are available every day.
Use the Stops filter while searching for flights, to see only nonstop options in your results.
The cheapest last-minute deal between San Francisco and Seattle at price $351 is offered by Frontier from Thu, Apr 30 to Mon, May 4.
Alaska, United and Delta fly direct from San Francisco to Seattle.
  • There are 58 Alaska direct flights from San Francisco to Seattle per week. Flights are available every day.
  • There are 35 United direct flights from San Francisco to Seattle per week. Flights are available every day.
  • There are 34 Delta direct flights from San Francisco to Seattle per week. Flights are available every day.
Use the Stops filter while searching for flights, to see only nonstop options in your results.
There are direct flights from San Francisco to Seattle on a daily basis.
The cheapest direct (nonstop) round-trip flights between San Francisco and Seattle start at $147 from Sat, May 30 to Mon, Jun 1 with United.
It's easy to find nonstop flights with Google Flights! Once you've searched for flights from San Francisco to Seattle, just select the nonstop flights only option in the 'Stops’ filter in the search form and view all available direct flights and their prices.
The cheapest business class round-trip flights between San Francisco and Seattle start at $408 from Thu, May 28 to Mon, Jun 1 with Frontier.
The cheapest economy class round-trip flights between San Francisco and Seattle start at $147 from Sat, May 30 to Mon, Jun 1.
To book business class trips from San Francisco to Seattle, look for the default Economy selection at the top, and change it to your desired cabin class such as Premium Economy, Business Class, or First Class. You can then select your departure and arrival dates, consider available options, and book your business travel.

You can also adjust the trip type to view one-way fares.
The best last-minute getaway deal for the next weekend between San Francisco and Seattle starts at $351 from Thu, Apr 30 to Mon, May 4 with Frontier.
The cheapest last-minute deal between San Francisco and Seattle at price $351 is offered by Frontier from Thu, Apr 30 to Mon, May 4.
To find last-minute flight deals from San Francisco to Seattle, start by entering the city names, select the desired departure and return dates, and hit the Search button to view flight options.

You can check for last-minute flights for the same day or adjust the trip type to see one-way fares.

Search more flights

Popular trips from San Francisco

  1. Seattle
    $233
    May 14 — May 18
    Nonstop 2 hr 20 min United
  2. Los Angeles
    $56
    May 30 — Jun 1
    Nonstop 1 hr 38 min Frontier
  3. New York
    $255
    Jun 6 — Jun 8
    1 stop 9 hr 33 min Frontier
  4. Tokyo
    $561
    Aug 27 — Aug 31
    Nonstop 10 hr 45 min ZIPAIR Tokyo

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