Cheap Flights from Seattle (SEA) to San Francisco (SFO) from HK$389~

View HK$389 flight on Sat, 11 Oct 2025Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to San Francisco Intl. Airport (SFO)

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

Prices were available within the past 7 days and start at HK$389 for one-way flights and HK$1,079 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 11 Oct - Tue, 28 Oct
SEA
Seattle
SFO
San Francisco
HK$1,079 Return, found 3 days ago
HK$1,079
Return
found 3 days ago
Select Delta flight, departing Sat, 11 Oct from Seattle to San Francisco, returning Tue, 28 Oct, priced at HK$1,079 found 3 days ago
Delta
Tue, 21 Oct - Fri, 24 Oct
SEA
Seattle
SFO
San Francisco
HK$1,156 Return, found 4 days ago
HK$1,156
Return
found 4 days ago
Select Delta flight, departing Tue, 21 Oct from Seattle to San Francisco, returning Fri, 24 Oct, priced at HK$1,156 found 4 days ago
Delta
Sat, 11 Oct - Mon, 27 Oct
SEA
Seattle
SFO
San Francisco
HK$1,229 Return, found 3 days ago
HK$1,229
Return
found 3 days ago
Select Delta flight, departing Sat, 11 Oct from Seattle to San Francisco, returning Mon, 27 Oct, priced at HK$1,229 found 3 days ago
Delta
Sat, 11 Oct - Mon, 20 Oct
SEA
Seattle
SFO
San Francisco
HK$1,305 Return, found 3 days ago
HK$1,305
Return
found 3 days ago
Select Delta flight, departing Sat, 11 Oct from Seattle to San Francisco, returning Mon, 20 Oct, priced at HK$1,305 found 3 days ago
Delta
Thu, 9 Oct - Mon, 27 Oct
SEA
Seattle
SFO
San Francisco
HK$1,391 Return, found 3 days ago
HK$1,391
Return
found 3 days ago
Select Delta flight, departing Thu, 9 Oct from Seattle to San Francisco, returning Mon, 27 Oct, priced at HK$1,391 found 3 days ago
Delta
Sun, 9 Nov - Thu, 13 Nov
SEA
Seattle
SFO
San Francisco
HK$1,393 Return, found 6 days ago
HK$1,393
Return
found 6 days ago
Select Delta flight, departing Sun, 9 Nov from Seattle to San Francisco, returning Thu, 13 Nov, priced at HK$1,393 found 6 days ago
United
Tue, 21 Oct - Fri, 24 Oct
SEA
Seattle
SFO
San Francisco
HK$1,425 Return, found 4 days ago
HK$1,425
Return
found 4 days ago
Select United flight, departing Tue, 21 Oct from Seattle to San Francisco, returning Fri, 24 Oct, priced at HK$1,425 found 4 days ago
Delta
Tue, 21 Oct - Fri, 24 Oct
SEA
Seattle
SFO
San Francisco
HK$1,436 Return, found 4 days ago
HK$1,436
Return
found 4 days ago
Select Delta flight, departing Tue, 21 Oct from Seattle to San Francisco, returning Fri, 24 Oct, priced at HK$1,436 found 4 days ago
Delta
Thu, 9 Oct - Mon, 20 Oct
SEA
Seattle
SFO
San Francisco
HK$1,466 Return, found 3 days ago
HK$1,466
Return
found 3 days ago
Select Delta flight, departing Thu, 9 Oct from Seattle to San Francisco, returning Mon, 20 Oct, priced at HK$1,466 found 3 days ago
American Airlines
Tue, 21 Oct - Fri, 24 Oct
SEA
Seattle
SFO
San Francisco
HK$1,511 Return, found 4 days ago
HK$1,511
Return
found 4 days ago
Select American Airlines flight, departing Tue, 21 Oct from Seattle to San Francisco, returning Fri, 24 Oct, priced at HK$1,511 found 4 days ago

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

January is typically the cheapest month to fly

From HK$749 - HK$1,375 per traveller.
Seattle to San Francisco route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
San Francisco Intl.
Return price
HK$1,079
Distance
1086 km
Average flight time
2 hours 13 mins

Flights from Seattle to San Francisco

Book cheap flights from Seattle (SEA) to San Francisco (SFO) 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 Seattle (SEA) to San Francisco (SFO) 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 Seattle (SEA) to San Francisco (SFO) trip. Call us at 3077-4857 (direct number - 24 hours day for English).

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

If you would like to book flights to San Francisco more flexibly, many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to San Francisco is HK$389 now!

 

Frequently asked questions

How much is a flight from Sea-Tac Airport to San Francisco Intl. Airport (SFO)?
Round-trip flights from Sea-Tac Airport to SFO start from HK$1,079. This figure is based on fares available within the last 7 days on Expedia for flights departing within the next year — book ASAP so you don't miss out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Seattle - Tacoma Intl. Airport (SEA) to SFO?
The majority of flights can be canceled online, but whether you are charged a fee all comes down to your airline. If you do need to cancel your escape, follow the easy instructions in the Customer Service Portal.
How do I find cheap flights from Seattle - Tacoma Intl. Airport (SEA) to SFO 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 Sea-Tac Airport to San Francisco Intl. Airport (SFO) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Sea-Tac Airport to San Francisco Intl. Airport (SFO)?
A flight distance of just 1,100 kilometers separates SeaTac and San Francisco. Once you're up in the skies, you won't have time to do much more than read the magazine in your seat pocket.
Which airlines fly direct from SEA to San Francisco Intl. Airport (SFO)?
Many travelers like to fly with Alaska Airlines (AS) from SEA to San Francisco Airport. This leading airline offers 312 flights a month, so you can pick a flight time that's perfect for you. Like more options? Have a look at the ticket prices from United Airlines (UA). This carrier offers 152 flights a month between these airports.
Are Seattle - Tacoma Intl. Airport (SEA) to SFO flight tickets cheaper when they're purchased at the last minute?
Last-minute planners can occasionally find a bargain, with some super cheap airfares from SEA to San Francisco Intl. Airport (SFO) showing up a few weeks before the departure date. If you'd rather book ahead, Expedia compares and updates the best flight deals frequently — as early as 12 months in advance in some cases. It does depend on the carrier though, as not all airlines quote prices so far in advance.

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