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Cheap flights from Seattle to San Francisco

Seattle-Tacoma International Airport (SEA) to San Francisco International Airport (SFO). 679 miles, 1h 50m nonstop.

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SEA to SFO at a glance

Computed from airline schedules and the fares we track for this route. Refreshed several times a day.

Distance
679 milesgreat-circle
Typical flight time
1h 50mnonstop, gate to gate
Nonstop airlines
DLUAB6AS6 airlinesDelta, United, JetBlue
Nonstop flights per day
31all airlines combined
Cheapest month
January 2027over the next six months
Best day to fly
Wednesday20% less than Sunday
Time difference
Same time zone

Seattle to San Francisco

Round trips from $72

Per traveler, taxes and fees included. Lowest fare we found departs Wed, Jan 6.

Cheapest month: January 2027

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Seattle to San Francisco fares by month

Lowest round-trip economy fare per traveler in each of the next six months, taxes and fees included. Select a month to search that date.

  1. September 2026from Tue, Sep 29$97
  2. October 2026from Wed, Oct 14$80
  3. November 2026from Wed, Nov 4$82
  4. December 2026from Wed, Dec 2$81
  5. January 2027from Wed, Jan 6$72
  6. February 2027from Tue, Feb 2$77

Airlines flying Seattle to San Francisco

6 airlines fly nonstop with 31 departures a day combined.

Connecting options

Every itinerary on this route is nonstop or uses an unusual connection; run a search for specifics.

Which airport should I use?

SeattleSan Francisco has 3 airports. Fares can differ by $50 to $150 round trip between them, so check the alternatives before you book.

Other arrival airports near San Francisco

Tips for this route

  • Delta, United, JetBlue and Alaska all fly SEA to SFO nonstop, so compare the total with bags before picking the lowest base fare: the difference between a basic and a standard economy ticket is often less than one checked bag each way.
  • January 2027 is the cheapest month to fly over the next six months, with round trips from $72; September 2026 is the most expensive at $97 and up, a difference of $25 per traveler.
  • Departing on a Wednesday averages 20% less than a Sunday on this route. If your dates are flexible, shift the outbound by a day or two and check the calendar view before you book.
  • Fares on this route are usually lowest 4 to 8 weeks before departure and rise sharply inside two weeks.

Destination guide

San Francisco: Fog, hills and the Golden Gate

San Francisco packs cable cars, the Golden Gate Bridge, Alcatraz and world-class food into 49 square miles. SFO is the main gateway; Oakland and San Jose are handy alternatives with lower fares on many routes.

Best time to visit: September and October are the warmest, clearest months. Spring (April–May) is green and mild. Summer fog ('Karl') keeps the coast cool; winter is rainy but inexpensive.

Flying the other way? San Francisco to SeattleFares, airlines and tips for SFO to SEA.

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Seattle to San Francisco: common questions

How long is the flight from Seattle to San Francisco?

A nonstop flight from Seattle (SEA) to San Francisco (SFO) takes about 1h 50m gate to gate, covering 679 miles. Connecting itineraries add the layover, typically 1 to 3 hours more in total.

Which airlines fly nonstop from SEA to SFO?

Delta Air Lines, United Airlines, JetBlue, Alaska Airlines, Spirit Airlines and Frontier Airlines operate nonstop flights from Seattle (SEA) to San Francisco (SFO), with 31 nonstop departures a day between them.

What is the cheapest month to fly from Seattle to San Francisco?

Over the next six months, January 2027 has the lowest round-trip fares from Seattle (SEA) to San Francisco (SFO), starting at $72 per traveler including taxes and fees. Within any month, Wednesday departures average the lowest prices.

How far in advance should I book Seattle to San Francisco flights?

Fares on this route are usually lowest 4 to 8 weeks before departure and rise sharply inside two weeks. Air1 Tickets includes free cancellation within 24 hours of booking on every fare, so you can lock in a good price and keep looking.

What is the time difference between Seattle and San Francisco?

San Francisco is in the same time zone as Seattle, so there is no clock change. SEA is on America/Los Angeles time and SFO on America/Los Angeles time. Departure and arrival times in search results are always shown in local time at each airport.

Related routes

Other popular city pairs from the same departure city and to the same destination, with the lowest round-trip fares we found.

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