Cheap flights from Seattle to San Francisco from $109
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/12. Fares are subject to change and may not be available on all flights or dates of travel.
Cheapflights Tip: The best prices from Seattle/Tacoma Intl to San Francisco are usually found in January or February, booked 78 days in advance, depart on a Saturday or Tuesday and return on a Thursday
Cheap flight deals from Seattle to San Francisco
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 21 October 2025.
Round-trip from | $189 |
---|---|
One-way from | $109 |
Popular in | December |
Cheapest in | January |
Average price | $387 |
Good one-way deal | $941 or less |
Find flight deals from Seattle to San Francisco
Cheapest flights from Seattle to San FranciscoExplore the most affordable flight options available from Seattle to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 October 2025.
Explore the most affordable flight options available from Seattle to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 October 2025.
Cheapflights Fare Finder
Use the filters below to find and compare flights from Seattle to San Francisco that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
SeattleSan Francisco
SEA - SFO
SEASFO
Seattle/Tacoma Intl
Tue 24/2
07:00-09:11
Nonstop2h 11m
San Francisco
Tue 24/2
12:49-20:05
1 stop7h 16m
SeattleSan Francisco
SEA - SFO
SEASFO
Seattle/Tacoma Intl
Tue 23/12
22:15-00:32
Nonstop2h 17m
San Francisco
Wed 14/1
18:25-20:41
Nonstop2h 16m
SeattleSan Francisco
SEA - SFO
SEASFO
Seattle/Tacoma Intl
Tue 16/12
12:45-16:24
1 stop3h 39m
San Francisco
Tue 16/12
19:25-21:43
Nonstop2h 18m
SeattleSan Francisco
SEA - SFO
SEASFO
Seattle/Tacoma Intl
Wed 10/12
12:45-19:45
1 stop7h 00m
San Francisco
Thu 11/12
19:25-21:43
Nonstop2h 18m
SeattleSan Francisco
SEA - SFO
SEASFO
Seattle/Tacoma Intl
Thu 13/11
09:35-16:22
1 stop6h 47m
San Francisco
Mon 17/11
08:00-10:23
Nonstop2h 23m
SeattleSan Francisco
SEA - SFO
SEASFO
Seattle/Tacoma Intl
Sun 1/2
11:30-19:12
1 stop7h 42m
San Francisco
Sun 8/2
09:00-11:21
Nonstop2h 21m
SeattleSan Francisco
SEA - SFO
SEASFO
Seattle/Tacoma Intl
Fri 12/12
12:45-18:27
1 stop5h 42m
San Francisco
Mon 15/12
12:22-14:38
Nonstop2h 16m
SeattleSan Francisco
SEA - SFO
SEASFO
Seattle/Tacoma Intl
Wed 3/12
07:45-14:53
1 stop7h 08m
San Francisco
Wed 10/12
12:22-14:38
Nonstop2h 16m
SeattleSan Francisco
SEA - SFO
SEASFO
Seattle/Tacoma Intl
Wed 12/11
11:10-16:21
1 stop5h 11m
San Francisco
Wed 19/11
09:00-11:24
Nonstop2h 24m
SeattleSan Francisco
SEA - SFO
SEASFO
Seattle/Tacoma Intl
Mon 17/11
11:10-16:21
1 stop5h 11m
San Francisco
Mon 17/11
20:43-23:06
Nonstop2h 23m
Best time to book a flight from Seattle to San Francisco
Have a flexible travel schedule? Discover the best time to fly to San Francisco from Seattle with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Seattle to San Francisco
How far ahead should I book a flight from Seattle to San Francisco?
Booking 58 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to San Francisco. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Seattle to San Francisco?
Currently, February is the cheapest month in which you can book a flight from Seattle to San Francisco (average of $141). Flying from Seattle to San Francisco in May is currently the most expensive (average of $211). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from SEA to SFO?
One of the essential ways to save on airfare from Seattle to San Francisco is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight at midday could potentially save you up to 93% on airfare.
How often are flights from Seattle to San Francisco delayed?
About 20% of weekly flights between Seattle and San Francisco have experienced delays in the past year, with the average delay time being 129 minutes.
What is the most punctual flight time for Seattle to San Francisco flights?
Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Seattle to San Francisco flights?
Over the past year, ITA Airways have had the lowest number of delays on this route, with no flights being classified as delayed.
Related info for your journey
Find useful and relevant information for your journey from Seattle to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Seattle to San Francisco
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How does Cheapflights help users find flights from Seattle to San Francisco?
When you search for this flight from Seattle to San Francisco, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.
Why should you use Cheapflights to find cheap flight tickets from Seattle to San Francisco?
Millions of users choose and trust Cheapflights to book the best flight deals from Seattle to San Francisco for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.
Can Cheapflights find flights from Seattle to San Francisco with no change fees?
Certainly. Search results for flights to San Francisco from Seattle shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Can Cheapflights notify me if prices for flights from Seattle to San Francisco become cheaper?
Not ready to book yet? You can track prices for flights from Seattle to San Francisco on Cheapflights with our Price Alert feature and get notified when better prices are available.