Cheap Flights From San Francisco Intl. (SFO) To Seattle - Tacoma Intl. (SEA)

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Cheapest Flights from San Francisco (SFO) to Seattle (SEA)

The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were CA $129 round trip and CA $68 one way. Prices and availability subject to change. Additional terms may apply.

Mon, Jan 12 - Mon, Jan 12
SFO
San Francisco
SEA
Seattle
CA $129 Roundtrip, found 4 days ago
CA $129
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Mon, Jan 12 from San Francisco to Seattle, returning Mon, Jan 12, priced at CA $129 found 4 days ago
Mon, Jan 12 - Mon, Jan 12
SFO
San Francisco
SEA
Seattle
CA $137 Roundtrip, found 4 days ago
CA $137
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Mon, Jan 12 from San Francisco to Seattle, returning Mon, Jan 12, priced at CA $137 found 4 days ago
Fri, Jan 9 - Mon, Jan 12
SFO
San Francisco
SEA
Seattle
CA $163 Roundtrip, found 11 hours ago
CA $163
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Fri, Jan 9 from San Francisco to Seattle, returning Mon, Jan 12, priced at CA $163 found 11 hours ago
Sat, Feb 7 - Sun, Feb 8
SFO
San Francisco
SEA
Seattle
CA $164 Roundtrip, found 6 days ago
CA $164
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Sat, Feb 7 from San Francisco to Seattle, returning Sun, Feb 8, priced at CA $164 found 6 days ago
Fri, Jan 9 - Mon, Jan 12
SFO
San Francisco
SEA
Seattle
CA $165 Roundtrip, found 11 hours ago
CA $165
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Fri, Jan 9 from San Francisco to Seattle, returning Mon, Jan 12, priced at CA $165 found 11 hours ago
Sat, Feb 7 - Sun, Feb 8
SFO
San Francisco
SEA
Seattle
CA $168 Roundtrip, found 6 days ago
CA $168
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Sat, Feb 7 from San Francisco to Seattle, returning Sun, Feb 8, priced at CA $168 found 6 days ago
Thu, Jan 8 - Thu, Jan 15
SFO
San Francisco
SEA
Seattle
CA $169 Roundtrip, found 4 days ago
CA $169
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Thu, Jan 8 from San Francisco to Seattle, returning Thu, Jan 15, priced at CA $169 found 4 days ago
Mon, Jan 12 - Mon, Jan 12
SFO
San Francisco
SEA
Seattle
CA $172 Roundtrip, found 4 days ago
CA $172
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Mon, Jan 12 from San Francisco to Seattle, returning Mon, Jan 12, priced at CA $172 found 4 days ago
Fri, Mar 6 - Sun, Mar 8
SFO
San Francisco
SEA
Seattle
CA $182 Roundtrip, found 1 day ago
CA $182
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Fri, Mar 6 from San Francisco to Seattle, returning Sun, Mar 8, priced at CA $182 found 1 day ago
Sat, Feb 7 - Sun, Feb 8
SFO
San Francisco
SEA
Seattle
CA $184 Roundtrip, found 6 days ago
CA $184
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Sat, Feb 7 from San Francisco to Seattle, returning Sun, Feb 8, priced at CA $184 found 6 days ago

Frequently asked questions

Are there direct flights from San Francisco Airport to Seattle - Tacoma Intl. Airport (SEA)?
If you're looking to journey from San Francisco Airport to Sea-Tac Airport in the shortest possible time, you'll be pleased to know multiple airlines offer nonstop flights. Select your preferred seat with Alaska Airlines or Delta.
What airlines fly from SFO to SEA?
You can take your pick from a number of airlines that have direct flights between San Francisco and Seattle. Alaska Airlines (AS) is one of the most reputable. This carrier operates roughly 243 flights every month. Another good option is Delta (DL), which has 178 flights each month. The more airlines you look into, the more likely you are to snap up a sensational deal.
What is the best day to buy a plane ticket?
Airfares offered on Friday tend to be the cheapest, according to flight demand on Travelocity.ca in 2021. Purchasing your airfares on a Thursday or Saturday can also provide better value, however our advice if you're looking to save money is to avoid booking on a Wednesday or Sunday. Our data shows that those two days have the highest ticket values on average, so keep this in mind if you're browsing flight deals.
What are the cheapest days to fly?
Frequent travellers may already know this, but earlier in the week is often the cheapest time to fly. Flights departing on a Monday are the cheapest of the week. Since flights towards the middle of the week tend to be more popular, this causes the prices to rise. This is why, on average, airfares booked on Travelocity.ca in 2021 were most expensive for Wednesday departures.
How far in advance can you book a flight?
Here's the deal: It is typically possible to start comparing international airfares on Travelocity.ca up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2-4 weeks prior to their travel dates.*According to flight demand on Travelocity.ca from January to December 2021. Savings are subject to change and may vary depending on selections made.
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.