Domestic route
Cheap flights from San Francisco to Seattle
San Francisco International Airport (SFO) to Seattle-Tacoma International Airport (SEA). 679 miles, 1h 50m nonstop.
SFO to SEA 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
- Tuesday19% less than Friday
- Time difference
- Same time zone
San Francisco to Seattle
Round trips from $73
Per traveler, taxes and fees included. Lowest fare we found departs Wed, Jan 13.
Cheapest month: January 2027
See fares on these datesLock any fare free — pay only when you accept your last-minute deal
Or ask an agent on WhatsAppSan Francisco to Seattle 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.
Airlines flying San Francisco to Seattle
6 airlines fly nonstop with 31 departures a day combined.
- ASAlaska AirlinesoneworldNonstop · 11 flights a day · first checked bag from $35
- DLDelta Air LinesSkyTeamNonstop · 7 flights a day · first checked bag from $35
- UAUnited AirlinesStar AllianceNonstop · 7 flights a day · first checked bag from $40
- F9Frontier AirlinesLow-costNonstop · 2 flights a day · first checked bag from $55
- B6JetBlueNonstop · 2 flights a day · first checked bag from $40
- NKSpirit AirlinesLow-costNonstop · 2 flights a day · first checked bag from $55
Connecting options
Every itinerary on this route is nonstop or uses an unusual connection; run a search for specifics.
Which airport should I use?
San Francisco has 3 airports. Fares can differ by $50 to $150 round trip between them, so check the alternatives before you book.
Tips for this route
- Delta, United, JetBlue and Alaska all fly SFO to SEA 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.
- Departing on a Tuesday averages 19% less than a Friday 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
Seattle: Coffee, mountains and Puget Sound
Seattle is the Pacific Northwest's gateway: Pike Place Market, the Space Needle and ferries across Puget Sound, with Mount Rainier and the Olympic Peninsula a couple of hours away. Sea-Tac is a Delta and Alaska hub with light rail downtown.
Best time to visit: July–September is dry, sunny and gorgeous — and the most expensive. May–June and late September are good compromises. October–April is gray and drizzly but cheap.
Flying the other way? Seattle to San FranciscoFares, airlines and tips for SEA to SFO.Ready to compare live fares?
See every airline on SFO–SEA side by side with bags and seat rules spelled out.
Search San Francisco to SeattleSan Francisco to Seattle: common questions
How long is the flight from San Francisco to Seattle?
A nonstop flight from San Francisco (SFO) to Seattle (SEA) 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 SFO to SEA?
Delta Air Lines, United Airlines, JetBlue, Alaska Airlines, Spirit Airlines and Frontier Airlines operate nonstop flights from San Francisco (SFO) to Seattle (SEA), with 31 nonstop departures a day between them.
What is the cheapest month to fly from San Francisco to Seattle?
Over the next six months, January 2027 has the lowest round-trip fares from San Francisco (SFO) to Seattle (SEA), starting at $73 per traveler including taxes and fees. Within any month, Tuesday departures average the lowest prices.
How far in advance should I book San Francisco to Seattle 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 San Francisco and Seattle?
Seattle is in the same time zone as San Francisco, so there is no clock change. SFO is on America/Los Angeles time and SEA 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.
More flights from San Francisco
All routes- San Francisco to New YorkSFO → JFKfrom $238
- San Francisco to ChicagoSFO → ORDfrom $159
- San Francisco to Los AngelesSFO → LAXfrom $63
- San Francisco to HonoluluSFO → HNLfrom $244
- San Francisco to VancouverSFO → YVRfrom $105
- San Francisco to LondonSFO → LHRfrom $510
- San Francisco to ParisSFO → CDGfrom $507
- San Francisco to TokyoSFO → NRTfrom $452