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 $173 round trip and CA $82 one way. Prices and availability subject to change. Additional terms may apply.

Sun, Dec 14 - Tue, Dec 16
SFO
San Francisco
SEA
Seattle
CA $173 Roundtrip, found 5 days ago
CA $173
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Sun, Dec 14 from San Francisco to Seattle, returning Tue, Dec 16, priced at CA $173 found 5 days ago
Mon, Jan 5 - Fri, Jan 9
SFO
San Francisco
SEA
Seattle
CA $178 Roundtrip, found 3 days ago
CA $178
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Mon, Jan 5 from San Francisco to Seattle, returning Fri, Jan 9, priced at CA $178 found 3 days ago
Sun, Dec 14 - Thu, Dec 18
SFO
San Francisco
SEA
Seattle
CA $187 Roundtrip, found 5 days ago
CA $187
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Sun, Dec 14 from San Francisco to Seattle, returning Thu, Dec 18, priced at CA $187 found 5 days ago
Thu, Dec 4 - Mon, Dec 8
SFO
San Francisco
SEA
Seattle
CA $194 Roundtrip, found 1 day ago
CA $194
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Thu, Dec 4 from San Francisco to Seattle, returning Mon, Dec 8, priced at CA $194 found 1 day ago
Thu, Dec 4 - Mon, Dec 8
SFO
San Francisco
SEA
Seattle
CA $201 Roundtrip, found 4 days ago
CA $201
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Thu, Dec 4 from San Francisco to Seattle, returning Mon, Dec 8, priced at CA $201 found 4 days ago
Thu, Dec 4 - Mon, Dec 8
SFO
San Francisco
SEA
Seattle
CA $201 Roundtrip, found 4 days ago
CA $201
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Thu, Dec 4 from San Francisco to Seattle, returning Mon, Dec 8, priced at CA $201 found 4 days ago
Mon, Jan 5 - Fri, Jan 9
SFO
San Francisco
SEA
Seattle
CA $206 Roundtrip, found 3 days ago
CA $206
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Mon, Jan 5 from San Francisco to Seattle, returning Fri, Jan 9, priced at CA $206 found 3 days ago
Sun, Dec 14 - Thu, Dec 18
SFO
San Francisco
SEA
Seattle
CA $209 Roundtrip, found 5 days ago
CA $209
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Sun, Dec 14 from San Francisco to Seattle, returning Thu, Dec 18, priced at CA $209 found 5 days ago
Mon, Jan 5 - Fri, Jan 9
SFO
San Francisco
SEA
Seattle
CA $219 Roundtrip, found 3 days ago
CA $219
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Mon, Jan 5 from San Francisco to Seattle, returning Fri, Jan 9, priced at CA $219 found 3 days ago
Thu, Dec 4 - Mon, Dec 8
SFO
San Francisco
SEA
Seattle
CA $222 Roundtrip, found 4 days ago
CA $222
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Thu, Dec 4 from San Francisco to Seattle, returning Mon, Dec 8, priced at CA $222 found 4 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.