Cheap Flights from Seattle (SEA) to San Francisco (SFO) from HK$390~

View HK$390 flight on Tue, 24 Feb 2026Opens in a new window

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

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 35% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

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

Prices were available within the past 7 days and start at HK$390 for one-way flights and HK$1,231 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Thu, 12 Feb - Sun, 15 Feb
SEA
Seattle
SFO
San Francisco
HK$1,231 Return, found 5 days ago
HK$1,231
Return
found 5 days ago
Select Alaska Airlines flight, departing Thu, 12 Feb from Seattle to San Francisco, returning Sun, 15 Feb, priced at HK$1,231 found 5 days ago
United
Thu, 12 Feb - Wed, 18 Feb
SEA
Seattle
SFO
San Francisco
HK$1,285 Return, found 5 days ago
HK$1,285
Return
found 5 days ago
Select United flight, departing Thu, 12 Feb from Seattle to San Francisco, returning Wed, 18 Feb, priced at HK$1,285 found 5 days ago
United
Thu, 12 Feb - Wed, 18 Feb
SEA
Seattle
SFO
San Francisco
HK$1,362 Return, found 5 days ago
HK$1,362
Return
found 5 days ago
Select United flight, departing Thu, 12 Feb from Seattle to San Francisco, returning Wed, 18 Feb, priced at HK$1,362 found 5 days ago
Delta
Thu, 12 Feb - Wed, 18 Feb
SEA
Seattle
SFO
San Francisco
HK$1,425 Return, found 5 days ago
HK$1,425
Return
found 5 days ago
Select Delta flight, departing Thu, 12 Feb from Seattle to San Francisco, returning Wed, 18 Feb, priced at HK$1,425 found 5 days ago
Delta
Sat, 14 Feb - Sun, 15 Feb
SEA
Seattle
SFO
San Francisco
HK$1,500 Return, found 4 days ago
HK$1,500
Return
found 4 days ago
Select Delta flight, departing Sat, 14 Feb from Seattle to San Francisco, returning Sun, 15 Feb, priced at HK$1,500 found 4 days ago
Delta
Thu, 12 Feb - Wed, 18 Feb
SEA
Seattle
SFO
San Francisco
HK$1,502 Return, found 5 days ago
HK$1,502
Return
found 5 days ago
Select Delta flight, departing Thu, 12 Feb from Seattle to San Francisco, returning Wed, 18 Feb, priced at HK$1,502 found 5 days ago
Delta
Sat, 4 Jul - Mon, 10 Aug
SEA
Seattle
SFO
San Francisco
HK$1,543 Return, found 2 days ago
HK$1,543
Return
found 2 days ago
Select Delta flight, departing Sat, 4 Jul from Seattle to San Francisco, returning Mon, 10 Aug, priced at HK$1,543 found 2 days ago
United
Thu, 12 Feb - Wed, 18 Feb
SEA
Seattle
SFO
San Francisco
HK$1,597 Return, found 5 days ago
HK$1,597
Return
found 5 days ago
Select United flight, departing Thu, 12 Feb from Seattle to San Francisco, returning Wed, 18 Feb, priced at HK$1,597 found 5 days ago
Delta
Wed, 11 Feb - Tue, 17 Feb
SEA
Seattle
SFO
San Francisco
HK$1,618 Return, found 1 day ago
HK$1,618
Return
found 1 day ago
Select Delta flight, departing Wed, 11 Feb from Seattle to San Francisco, returning Tue, 17 Feb, priced at HK$1,618 found 1 day ago
American Airlines
Thu, 12 Feb - Wed, 18 Feb
SEA
Seattle
SFO
San Francisco
HK$1,737 Return, found 5 days ago
HK$1,737
Return
found 5 days ago
Select American Airlines flight, departing Thu, 12 Feb from Seattle to San Francisco, returning Wed, 18 Feb, priced at HK$1,737 found 5 days ago

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

February is typically the cheapest month to fly

From HK$639 - HK$1,032 per traveller.

Alternative airports near San Francisco

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

Select flight to San Francisco Intl. SFO. Cheapest and Closest option available. Average driving time to city centre is 19 minutes. Flights from HK$1,618
SFO
San Francisco Intl.
CheapestClosest
Average driving time to city centre19 min
Flights from HK$1,618
Seattle to San Francisco route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
San Francisco Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Return price
HK$1,231
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$390 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$1,231. 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.

Explore a world of travel with Expedia

*Available to Expedia members.