Cheap Flights from Seattle / Tacoma International to San Francisco International

Compare Seattle / Tacoma International to San Francisco International flight deals

Find the cheapest month or even day of the year to fly to San Francisco International

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Flight deals from Seattle / Tacoma International to San Francisco International

Looking for a cheap last-minute deal or the best return flight from Seattle / Tacoma International to San Francisco International? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Seattle / Tacoma International to San Francisco International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle / Tacoma International to San Francisco International flights are currently cheapest in October.

Direct flights from Seattle / Tacoma International to San Francisco International

Seattle / Tacoma International to San Francisco International: Alternative routes

Compare routes from Seattle / Tacoma International to San Francisco below. You may find an airport to fly into that's cheaper, faster, or easier than San Francisco International.

Seattle to San Francisco: Flight information

The things to know before you go.
Cheapest flight foundR 1,200
Cheapest month to flyOctober
Average flight time2 hrs, 17 mins
Most popular airlineAir Tahiti Nui
Average flights per week914

Finding cheap flights from Seattle / Tacoma International to San Francisco International: Frequently asked questions

The best price we found for a return flight from Seattle / Tacoma International to San Francisco International is R 2,272. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
2 hours and 17 minutes is the average flight time from Seattle / Tacoma International to San Francisco International.
Air Tahiti Nui, Qatar Airways and Hawaiian Airlines fly direct from Seattle / Tacoma International to San Francisco International.
As of June 2025, there are 914 flights per week flying from Seattle / Tacoma International to San Francisco International.
The cheapest month to fly from Seattle / Tacoma International to San Francisco International is usually August.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Seattle / Tacoma International Airport to San Francisco International Airport on Saturday, 23 August 2025.
Yes – the average flight time is 2 hours and 17 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Francisco International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Francisco is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Hawaiian Airlines offers the cheapest flight tickets to San Francisco International.

Flying from Seattle-Tacoma International Airport (SEA) to San Francisco International Airport (SFO): what you need to know

  • Take a direct flight from Seattle-Tacoma International Airport to San Francisco International Airport and you'll be travelling for an average of 2 hours 15 minutes.

  • Seattle and San Francisco follow the same timezone, UTC-7.

  • You can choose from 164 weekly Seattle-Tacoma International Airport to San Francisco International Airport flights. The 05:15 departure with United Airlines is the earliest flight available. Delta Air Lines operates the last service of the day at 21:59.

  • Leave plenty of time to catch your SEA to SFO flight. It's generally best to arrive at least two hours before international departures and an hour ahead for domestic flights.

  • Travelling during a peak month like July? Major public holidays and other high seasons can result in longer queues at security. Play things extra safe and get there up to four hours ahead of an international flight and two hours before a domestic departure.

  • You can travel nonstop to San Francisco, United States. Take off with one of these airlines that offer direct flights from Seattle-Tacoma International Airport to San Francisco International Airport:

  • Alaska Airlines tops the list for bookings on this route.

  • United Airlines tops the rankings as the most punctual carrier for SEA to SFO flights, with 80.28% of its services landing on schedule.

  • We make it a piece of cake to book a flight with a stopover. To see your options for tickets from Seattle-Tacoma International Airport to San Francisco International Airport, uncheck 'Direct flights only.' Then, choose a flight with a stop long enough to tour the city of your choice. Worthwhile stopovers between SEA and SFO include:

    • Portland International Airport

    • Roberts Field Airport

    • Rogue Valley International-Medford Airport

How to find the cheapest flights from Seattle-Tacoma International Airport (SEA) to San Francisco International Airport (SFO)

  • The cheapest price we've seen for a one-way Seattle-Tacoma International Airport to San Francisco International Airport flight is R 1,200. A round-trip fare is currently R 2,272. Depending on the availability when you book, these fares can change.

  • To score cheap tickets from SEA to SFO, reserve your trip six months ahead of your departure.

  • Organise your trip for May. That's the cheapest month for flights from Seattle-Tacoma International Airport to San Francisco International Airport. If you're flexible on when you fly, try out the 'Whole month' tool to find the cheapest airfare across every month.

  • Save time looking for cheap flights from SEA to SFO by creating a Price Alert. We'll send you an email or notification on the app when a new discounted fare appears.

  • Tailor your trip with filters. Select your arrival and departure times, total journey duration and airlines. You can also sort results by 'Cheapest,' 'Best' or 'Fastest' flights from Seattle-Tacoma International Airport to San Francisco International Airport.

Handy information about Seattle-Tacoma International Airport (SEA)

  • Seattle-Tacoma International Airport gets high marks for its on-time performance. 81.27% of flights that depart SEA arrive at their destination on time.

  • Seattle-Tacoma International Airport is about 23 kilometres from central Seattle. If you're driving, ride-sharing or catching a cab from the centre, it'll take 20 minutes or so to arrive, depending on the traffic.

  • The trip on public transport will take about 55 minutes.

  • Need a handy hotel close to SEA? If you're boarding an early flight from Seattle-Tacoma International Airport to San Francisco International Airport, these stays will have you sleeping moments from your departure gate:

Arriving at San Francisco International Airport (SFO)

Getting from San Francisco International Airport (SFO) to central San Francisco

  • San Francisco International Airport to the centre of San Francisco has a drive time of about 20 minutes. It's approximately 21 kilometres away.

  • If you're taking public transport, expect a journey time of about 45 minutes.

When to fly to San Francisco International Airport (SFO)

  • August is the busiest month for flights from Seattle-Tacoma International Airport to San Francisco International Airport. For a quieter experience, visit San Francisco in February.

  • Lock in your flight from Seattle-Tacoma International Airport to San Francisco International Airport for September if you want to explore San Francisco during its warmest month. Expect temperatures of between 12ºC (54ºF) and 22ºC (72ºF).

  • January sees average temperatures of between 6ºC (43ºF) and 16ºC (61ºF). Search for cheap tickets from SEA to SFO sometime then if you want to travel in cooler conditions.

Explore more of United States

  • San Jose is just one of the many places in United States waiting to be explored after you've experienced San Francisco. Around 64 kilometres away to the south-east, its best attractions include Winchester Mystery House, Rosicrucian Egyptian Museum and San Jose Museum of Art.

  • Around 257 kilometres south-east of San Francisco, Fresno is another essential stop in United States. Experience the best of this destination with a visit to Forestiere Underground Gardens, Fresno Chaffee Zoo and Shinzen Japanese Garden.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.