$69 Cheap Flights from Seattle (SEA) to San Francisco (SFO)

View $69 flight on Tue, May 27, 2025Opens in a new window

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Find available prices by choosing your travel dates.

Cheap Flights from Seattle to San Francisco (SEA-SFO)

Prices were available within the past 7 days and start at $69 for one-way flights and $137 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Tue, Jun 3 - Wed, Jun 11
PAE
Seattle
SFO
San Francisco
$137 Roundtrip, just found
$137
Roundtrip
just found
Select Alaska Airlines flight, departing Tue, Jun 3 from Seattle to San Francisco, returning Wed, Jun 11, priced at $137 just found
Delta
Tue, Jun 3 - Wed, Jun 11
SEA
Seattle
SFO
San Francisco
$137 Roundtrip, just found
$137
Roundtrip
just found
Select Delta flight, departing Tue, Jun 3 from Seattle to San Francisco, returning Wed, Jun 11, priced at $137 just found
United
Tue, Jun 3 - Wed, Jun 11
SEA
Seattle
SFO
San Francisco
$137 Roundtrip, just found
$137
Roundtrip
just found
Select United flight, departing Tue, Jun 3 from Seattle to San Francisco, returning Wed, Jun 11, priced at $137 just found
Delta
Tue, May 27 - Wed, Jun 4
SEA
Seattle
SFO
San Francisco
$139 Roundtrip, just found
$139
Roundtrip
just found
Select Delta flight, departing Tue, May 27 from Seattle to San Francisco, returning Wed, Jun 4, priced at $139 just found
Alaska Airlines
Sat, Jun 7 - Tue, Jun 10
PAE
Seattle
SFO
San Francisco
$147 Roundtrip, just found
$147
Roundtrip
just found
Select Alaska Airlines flight, departing Sat, Jun 7 from Seattle to San Francisco, returning Tue, Jun 10, priced at $147 just found
Alaska Airlines
Thu, May 15 - Tue, May 20
PAE
Seattle
SFO
San Francisco
$147 Roundtrip, just found
$147
Roundtrip
just found
Select Alaska Airlines flight, departing Thu, May 15 from Seattle to San Francisco, returning Tue, May 20, priced at $147 just found
Alaska Airlines
Mon, Jun 9 - Tue, Jun 17
SEA
Seattle
SFO
San Francisco
$148 Roundtrip, just found
$148
Roundtrip
just found
Select Alaska Airlines flight, departing Mon, Jun 9 from Seattle to San Francisco, returning Tue, Jun 17, priced at $148 just found
American Airlines
Tue, Jun 3 - Sat, Jun 7
SEA
Seattle
SFO
San Francisco
$149 Roundtrip, found 8 hours ago
$149
Roundtrip
found 8 hours ago
Select American Airlines flight, departing Tue, Jun 3 from Seattle to San Francisco, returning Sat, Jun 7, priced at $149 found 8 hours ago
American Airlines
Sat, Jun 7 - Sat, Jun 14
SEA
Seattle
SFO
San Francisco
$150 Roundtrip, found 2 hours ago
$150
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Sat, Jun 7 from Seattle to San Francisco, returning Sat, Jun 14, priced at $150 found 2 hours ago
Southwest Airlines
Tue, Jun 10 - Tue, Jun 17
SEA
Seattle
SFO
San Francisco
$152 Roundtrip, found 2 hours ago
$152
Roundtrip
found 2 hours ago
Select Southwest Airlines flight, departing Tue, Jun 10 from Seattle to San Francisco, returning Tue, Jun 17, priced at $152 found 2 hours ago
Flights from Seattle (SEA) to San Francisco (SFO)
Origin airport
Seattle - Tacoma Intl.
Destination airport
San Francisco Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, JetBlue Airways, Southwest Airlines, United
Roundtrip price
$131
Distance
679 mi

Seattle to San Francisco Flights

The cheapest times to fly from Seattle to San Francisco

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Seattle to San Francisco are during the month of June. You can find some of the cheapest flights from Seattle to San Francisco with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Seattle to San Francisco

Sunday is one of the best days to book for cheap flights from Seattle to San Francisco: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Seattle to San Francisco

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Seattle to San Francisco in 2025. You can also book with separate airlines for your outbound and return journeys, from $69 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Seattle to San Francisco flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Seattle to San Francisco airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from Seattle - Tacoma Intl. Airport (SEA) to San Francisco Intl. Airport (SFO) cost?
You can book cheap return tickets starting at $131 from Seattle - Tacoma Intl. Airport (SEA) to San Francisco Intl. Airport (SFO). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Alaska Airlines flight leaving SEA on May 14 2025 and touching down at SFO. The price was last updated on April 22 2025 and has not changed since.
What is the cheapest month to fly from SEA to SFO?
The cheapest flights from SEA to SFO are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Seattle - Tacoma Intl. Airport (SEA) to San Francisco Intl. Airport (SFO)?
Skip the stopovers and fly direct to San Francisco Intl. Airport (SFO) from Seattle - Tacoma Intl. Airport (SEA) with 3 carriers, including:

  • Alaska Airlines
  • United Airlines
  • Delta Air Lines

What is the cheapest airline that flies from SEA to SFO?
Travel from SEA to SFO with Alaska Airlines. This airline currently has the lowest one-way fare for this route, starting at $69. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from SEA on June 17 2025. Prices were last updated on April 22 2025 and have not changed since.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to San Francisco Intl. Airport (SFO)?
With an average of 17 nonstop flights departing from Seattle - Tacoma Intl. Airport (SEA) to San Francisco Intl. Airport (SFO) daily, you’ll be cruising above the clouds before you know it.
What are the most popular departure times for flights from Seattle - Tacoma Intl. Airport (SEA) to San Francisco Intl. Airport (SFO)?
More people fly between SEA and SFO at 6 AM than at any other point in the day. Looking to skip the crowds? Try choosing a quieter departure window and you could save on your fare as well.
What day of the week has the most flights from SEA to SFO?
If you fly on a Monday, you’ll get the widest range of options for flights from Seattle - Tacoma Intl. Airport (SEA) to San Francisco Intl. Airport (SFO).
What is the earliest flight from Seattle - Tacoma Intl. Airport (SEA) to San Francisco Intl. Airport (SFO)?
The first flight of the day taking off from Seattle - Tacoma Intl. Airport (SEA) is at around 5:45AM UTC-8. Board this flight and you’ll touch down at San Francisco Intl. Airport (SFO) at approximately 8:05AM UTC-8. The entire trip takes 2h 20m.
How long does it take to fly from Seattle - Tacoma Intl. Airport (SEA) to San Francisco Intl. Airport (SFO)?
The average flight duration from SEA to SFO is 2 hours and 17 minutes, covering a distance of 680 mi.
What airline has the least delays from SEA to SFO?
Consider traveling with Air France if you’d like to go straight from Seattle - Tacoma Intl. Airport (SEA) to San Francisco Intl. Airport (SFO) without any interruptions. This carrier has the best track record for punctuality, with an on-time score of 100%. Want to be updated if anything changes? You can check your flight status using the Expedia App.
What is the best time to fly from Seattle - Tacoma Intl. Airport (SEA) to San Francisco Intl. Airport (SFO)?
To touch down at San Francisco Intl. Airport (SFO) without delays, select a flight that leaves Seattle - Tacoma Intl. Airport (SEA) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for San Francisco from Seattle - Tacoma Intl. Airport (SEA)?
Touch down at one of these San Francisco airports after your direct flight from Seattle - Tacoma Intl. Airport (SEA):

  • San Francisco Intl. Airport (SFO)
  • Norman Y. Mineta San Jose Intl. Airport (SJC)
  • Oakland Intl. Airport (OAK)

Is it cheaper to buy a plane ticket from Seattle - Tacoma Intl. Airport (SEA) to San Francisco Intl. Airport (SFO) last-minute?
Holding off until just before your trip to book your flight from SEA to SFO generally means paying more. While you may find some last-minute deals, they aren’t always guaranteed. Allow some flexibility in your schedule for a better chance of getting a bargain.
Is it cheaper to book a SEA to SFO flight and hotel package?
Opting for a SEA to SFO flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Select from our wide range of accommodations and then add car rentals, activities and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to San Francisco Intl. Airport (SFO)?
Generally, it’s possible to cancel or reschedule your SEA to SFO flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Check your airline’s policies in your itinerary to see what changes are allowed and if any costs are involved. You’ll also find more information on our Customer Service portal.

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*Available to One Key members.