Cheap Flights from San Francisco (SFO) to Seattle (SEA) from HK$378~

View HK$378 flight on Sun, 8 Mar 2026Opens in a new window

Popular airlines from San Francisco Intl. Airport (SFO) to Seattle

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

Prices were available within the past 7 days and start at HK$378 for one-way flights and HK$767 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 21 Feb - Wed, 25 Feb
SFO
San Francisco
SEA
Seattle
HK$767 Return, found 1 day ago
HK$767
Return
found 1 day ago
Select Delta flight, departing Sat, 21 Feb from San Francisco to Seattle, returning Wed, 25 Feb, priced at HK$767 found 1 day ago
Delta
Sat, 21 Feb - Wed, 25 Feb
SFO
San Francisco
SEA
Seattle
HK$843 Return, found 1 day ago
HK$843
Return
found 1 day ago
Select Delta flight, departing Sat, 21 Feb from San Francisco to Seattle, returning Wed, 25 Feb, priced at HK$843 found 1 day ago
Delta
Sat, 21 Feb - Wed, 25 Feb
SFO
San Francisco
SEA
Seattle
HK$1,047 Return, found 1 day ago
HK$1,047
Return
found 1 day ago
Select Delta flight, departing Sat, 21 Feb from San Francisco to Seattle, returning Wed, 25 Feb, priced at HK$1,047 found 1 day ago
Delta
Thu, 8 Jan - Mon, 12 Jan
SFO
San Francisco
SEA
Seattle
HK$1,070 Return, found 5 days ago
HK$1,070
Return
found 5 days ago
Select Delta flight, departing Thu, 8 Jan from San Francisco to Seattle, returning Mon, 12 Jan, priced at HK$1,070 found 5 days ago
United
Thu, 15 Jan - Sun, 18 Jan
SFO
San Francisco
SEA
Seattle
HK$1,122 Return, found 2 days ago
HK$1,122
Return
found 2 days ago
Select United flight, departing Thu, 15 Jan from San Francisco to Seattle, returning Sun, 18 Jan, priced at HK$1,122 found 2 days ago
United
Sat, 21 Feb - Wed, 25 Feb
SFO
San Francisco
SEA
Seattle
HK$1,123 Return, found 1 day ago
HK$1,123
Return
found 1 day ago
Select United flight, departing Sat, 21 Feb from San Francisco to Seattle, returning Wed, 25 Feb, priced at HK$1,123 found 1 day ago
Delta
Thu, 8 Jan - Mon, 12 Jan
SFO
San Francisco
SEA
Seattle
HK$1,154 Return, found 5 days ago
HK$1,154
Return
found 5 days ago
Select Delta flight, departing Thu, 8 Jan from San Francisco to Seattle, returning Mon, 12 Jan, priced at HK$1,154 found 5 days ago
Delta
Thu, 8 Jan - Mon, 12 Jan
SFO
San Francisco
SEA
Seattle
HK$1,197 Return, found 5 days ago
HK$1,197
Return
found 5 days ago
Select Delta flight, departing Thu, 8 Jan from San Francisco to Seattle, returning Mon, 12 Jan, priced at HK$1,197 found 5 days ago
United
Thu, 15 Jan - Sun, 18 Jan
SFO
San Francisco
SEA
Seattle
HK$1,198 Return, found 2 days ago
HK$1,198
Return
found 2 days ago
Select United flight, departing Thu, 15 Jan from San Francisco to Seattle, returning Sun, 18 Jan, priced at HK$1,198 found 2 days ago
Alaska Airlines
Sun, 4 Jan - Wed, 7 Jan
SFO
San Francisco
SEA
Seattle
HK$2,777 Return, found 1 day ago
HK$2,777
Return
found 1 day ago
Select Alaska Airlines flight, departing Sun, 4 Jan from San Francisco to Seattle, returning Wed, 7 Jan, priced at HK$2,777 found 1 day ago

Find the cheapest month to fly from San Francisco (SFO) to Seattle (SEA)

February is typically the cheapest month to fly

From HK$646 - HK$968 per traveller.

Alternative airports near Seattle

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Average driving time to city centre is 20 minutes. Flights from HK$2,777
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city centre20 min
Flights from HK$2,777
San Francisco to Seattle route information
Origin airport
San Francisco Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Return price
HK$767
Distance
1086 km
Average flight time
2 hours 13 mins

Flights from San Francisco to Seattle

Book cheap flights from San Francisco (SFO) to Seattle (SEA) on Expedia.com.hk. Find the best flight deals to destinations around the world for your next leisure or business travel on Expedia.com.hk.

Search for flights from San Francisco (SFO) to Seattle (SEA) to find great flight deals suitable to your travel date and time. Expedia.com.hk flight booking search engine is simple to use and looking for cheap flights is as easy as a click of a mouse or on your mobile devices.

Be assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your San Francisco (SFO) to Seattle (SEA) trip. Call us at 3077-4857 (direct number - 24 hours day for English).

Save more when combine your Seattle flight with a hotel for a package deal! Discover additional savings by booking in advance. Now you can find activities in Seattle and things to do in Seattle for your perfect vacation with Expedia Thing to Do.

If you would like to book flights to Seattle more flexibly, many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Seattle is HK$378 now!

 

Frequently asked questions

How much is a flight from SFO to Sea-Tac Airport?
If you're traveling from SFO to Seattle - Tacoma Intl. Airport (SEA), round-trip journeys start from HK$767. This figure is based on fares listed within the last 7 days on Expedia for flights departing within the next year, so don't let a good deal slip through your fingers. Book today and save yourself both money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from San Francisco Intl. Airport (SFO) to SEA?
Most flights can be canceled online, but whether you incur a fee differs between airlines. If you do need to cancel your vacation, follow the easy instructions in the Customer Service Portal.
How do I find cheap flights from SFO to Seattle - Tacoma Intl. Airport (SEA) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for San Francisco Airport to Sea-Tac Airport flights, you'll see a "no change fees" filter for you to select.
How many hours is the flight from San Francisco Intl. Airport (SFO) to Seattle - Tacoma Intl. Airport (SEA)?
With the flight time between San Francisco Airport and Seattle - Tacoma Intl. Airport (SEA) just 2 hours and 20 minutes, you'll be discovering the sights of SeaTac before you know it.
How far is the flight from San Francisco Intl. Airport (SFO) to Sea-Tac Airport?
A flight distance of just 1,100 kilometers separates San Francisco and SeaTac. Once you're in the air, you won't have time to do much more than flip through the pages of the in-flight magazine.
Which airlines fly direct from San Francisco Intl. Airport (SFO) to SEA?
A popular airline that flies from San Francisco Airport to Sea-Tac Airport is Alaska Airlines (AS). It offers 312 flights every month. Offering 152 flights each month along this route, United Airlines (UA) is another traveler favorite.
Are San Francisco Airport to Sea-Tac Airport flight tickets cheaper when they're purchased at the last minute?
It is possible to find an amazing last-minute deal from San Francisco Intl. Airport (SFO) to Sea-Tac Airport, but it's also possible to miss out altogether! As many airlines advertise prices up to a year in advance, it's worth keeping an eye on fares early and being ready to pounce when you see a good bargain. Expedia compares air carrier prices and updates flight deals frequently, so you can be certain you're always getting the latest offers.

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