Cheap Flights From Seattle - Tacoma Intl. (SEA) To San Diego Intl. (SAN)

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Cheapest Flights from Seattle (SEA) to San Diego (SAN)

The cheapest flights to San Diego Intl. found within the past 7 days were CA $177 round trip and CA $107 one way. Prices and availability subject to change. Additional terms may apply.

Sat, Aug. 9 - Tue, Aug. 12
SEA
Seattle
SAN
San Diego
CA $177 Roundtrip, found 4 days ago
CA $177
Roundtrip
found 4 days ago
Select Spirit Airlines flight, departing Sat, Aug. 9 from Seattle to San Diego, returning Tue, Aug. 12, priced at CA $177 found 4 days ago
Wed, Aug. 6 - Sat, Aug. 9
SEA
Seattle
SAN
San Diego
CA $185 Roundtrip, found 6 days ago
CA $185
Roundtrip
found 6 days ago
Select Spirit Airlines flight, departing Wed, Aug. 6 from Seattle to San Diego, returning Sat, Aug. 9, priced at CA $185 found 6 days ago
Sat, Oct. 4 - Tue, Oct. 7
PAE
Seattle
SAN
San Diego
CA $214 Roundtrip, found 21 hours ago
CA $214
Roundtrip
found 21 hours ago
Select Alaska Airlines flight, departing Sat, Oct. 4 from Seattle to San Diego, returning Tue, Oct. 7, priced at CA $214 found 21 hours ago
Tue, Sep. 30 - Tue, Oct. 7
PAE
Seattle
SAN
San Diego
CA $216 Roundtrip, found 2 days ago
CA $216
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Tue, Sep. 30 from Seattle to San Diego, returning Tue, Oct. 7, priced at CA $216 found 2 days ago
Sat, Sep. 6 - Wed, Sep. 10
PAE
Seattle
SAN
San Diego
CA $217 Roundtrip, found 5 days ago
CA $217
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Sat, Sep. 6 from Seattle to San Diego, returning Wed, Sep. 10, priced at CA $217 found 5 days ago
Tue, Aug. 5 - Sat, Aug. 9
SEA
Seattle
SAN
San Diego
CA $234 Roundtrip, found 4 days ago
CA $234
Roundtrip
found 4 days ago
Select Spirit Airlines flight, departing Tue, Aug. 5 from Seattle to San Diego, returning Sat, Aug. 9, priced at CA $234 found 4 days ago
Sat, Oct. 4 - Tue, Oct. 7
SEA
Seattle
SAN
San Diego
CA $240 Roundtrip, found 21 hours ago
CA $240
Roundtrip
found 21 hours ago
Select Alaska Airlines flight, departing Sat, Oct. 4 from Seattle to San Diego, returning Tue, Oct. 7, priced at CA $240 found 21 hours ago
Tue, Sep. 30 - Tue, Oct. 7
SEA
Seattle
SAN
San Diego
CA $241 Roundtrip, found 2 days ago
CA $241
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Tue, Sep. 30 from Seattle to San Diego, returning Tue, Oct. 7, priced at CA $241 found 2 days ago
Fri, Nov. 28 - Sat, Dec. 6
SEA
Seattle
SAN
San Diego
CA $242 Roundtrip, found 9 hours ago
CA $242
Roundtrip
found 9 hours ago
Select Alaska Airlines flight, departing Fri, Nov. 28 from Seattle to San Diego, returning Sat, Dec. 6, priced at CA $242 found 9 hours ago
Mon, Aug. 11 - Tue, Aug. 12
SEA
Seattle
SAN
San Diego
CA $243 Roundtrip, found 6 hours ago
CA $243
Roundtrip
found 6 hours ago
Select Spirit Airlines flight, departing Mon, Aug. 11 from Seattle to San Diego, returning Tue, Aug. 12, priced at CA $243 found 6 hours ago

Frequently asked questions

Are there direct flights from Seattle - Tacoma Intl. Airport (SEA) to San Diego Intl. Airport (SAN)?
If you'd love to travel from Seattle - Tacoma Intl. Airport (SEA) to San Diego Airport as quickly as possible, you'll be glad to know multiple airlines offer direct flights. Select your favorite seat with Alaska Airlines or Delta.
What airlines fly from Seattle - Tacoma Intl. Airport (SEA) to SAN?
You have a choice of a few airlines advertising direct flights between Seattle and San Diego County. Alaska Airlines (AS) is one of the most reputable. This carrier offers around 234 flights each month. If you want more choice, take a look at the fares on offer from Delta (DL). This airline operates 121 flights on the Seattle to San Diego County route each month. Between the two, we're sure you'll find a deal that's perfect for you.
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.