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 $187 round trip and CA $93 one way. Prices and availability subject to change. Additional terms may apply.

Sat, Sep. 20 - Sat, Sep. 27
SFO
San Francisco
SEA
Seattle
CA $187 Roundtrip, found 4 days ago
CA $187
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sat, Sep. 20 from San Francisco to Seattle, returning Sat, Sep. 27, priced at CA $187 found 4 days ago
Fri, Sep. 26 - Tue, Sep. 30
SFO
San Francisco
SEA
Seattle
CA $200 Roundtrip, found 3 days ago
CA $200
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Fri, Sep. 26 from San Francisco to Seattle, returning Tue, Sep. 30, priced at CA $200 found 3 days ago
Sat, Sep. 13 - Mon, Sep. 15
SFO
San Francisco
SEA
Seattle
CA $203 Roundtrip, found 1 day ago
CA $203
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sat, Sep. 13 from San Francisco to Seattle, returning Mon, Sep. 15, priced at CA $203 found 1 day ago
Sat, Sep. 6 - Mon, Sep. 8
SFO
San Francisco
SEA
Seattle
CA $205 Roundtrip, found 6 days ago
CA $205
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Sat, Sep. 6 from San Francisco to Seattle, returning Mon, Sep. 8, priced at CA $205 found 6 days ago
Mon, Dec. 8 - Thu, Dec. 11
SFO
San Francisco
SEA
Seattle
CA $213 Roundtrip, found 5 days ago
CA $213
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Mon, Dec. 8 from San Francisco to Seattle, returning Thu, Dec. 11, priced at CA $213 found 5 days ago
Mon, Sep. 22 - Thu, Sep. 25
SFO
San Francisco
SEA
Seattle
CA $214 Roundtrip, found 6 days ago
CA $214
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Mon, Sep. 22 from San Francisco to Seattle, returning Thu, Sep. 25, priced at CA $214 found 6 days ago
Tue, Aug. 19 - Wed, Aug. 20
SFO
San Francisco
SEA
Seattle
CA $218 Roundtrip, found 11 hours ago
CA $218
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Tue, Aug. 19 from San Francisco to Seattle, returning Wed, Aug. 20, priced at CA $218 found 11 hours ago
Mon, Dec. 8 - Thu, Dec. 11
SFO
San Francisco
SEA
Seattle
CA $226 Roundtrip, found 5 days ago
CA $226
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Mon, Dec. 8 from San Francisco to Seattle, returning Thu, Dec. 11, priced at CA $226 found 5 days ago
Mon, Sep. 22 - Thu, Sep. 25
SFO
San Francisco
SEA
Seattle
CA $228 Roundtrip, found 6 days ago
CA $228
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Mon, Sep. 22 from San Francisco to Seattle, returning Thu, Sep. 25, priced at CA $228 found 6 days ago
Thu, Aug. 21 - Mon, Aug. 25
SFO
San Francisco
SEA
Seattle
CA $231 Roundtrip, found 19 hours ago
CA $231
Roundtrip
found 19 hours ago
Select Alaska Airlines flight, departing Thu, Aug. 21 from San Francisco to Seattle, returning Mon, Aug. 25, priced at CA $231 found 19 hours 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.