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

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

Find The Best Dates To Fly

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

The cheapest flights to San Diego Intl. found within the past 7 days were CA $248 round trip and CA $128 one way. Prices and availability subject to change. Additional terms may apply.

Wed, Dec 3 - Sat, Dec 6
SEA
Seattle
SAN
San Diego
CA $248 Roundtrip, found 1 day ago
CA $248
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Wed, Dec 3 from Seattle to San Diego, returning Sat, Dec 6, priced at CA $248 found 1 day ago
Sat, Dec 6 - Sat, Dec 13
SEA
Seattle
SAN
San Diego
CA $250 Roundtrip, found 20 hours ago
CA $250
Roundtrip
found 20 hours ago
Select Alaska Airlines flight, departing Sat, Dec 6 from Seattle to San Diego, returning Sat, Dec 13, priced at CA $250 found 20 hours ago
Wed, Nov 19 - Wed, Dec 3
SEA
Seattle
SAN
San Diego
CA $251 Roundtrip, found 2 days ago
CA $251
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Wed, Nov 19 from Seattle to San Diego, returning Wed, Dec 3, priced at CA $251 found 2 days ago
Sat, Dec 6 - Tue, Dec 9
SEA
Seattle
SAN
San Diego
CA $253 Roundtrip, found 5 days ago
CA $253
Roundtrip
found 5 days ago
Select Delta flight, departing Sat, Dec 6 from Seattle to San Diego, returning Tue, Dec 9, priced at CA $253 found 5 days ago
Wed, Nov 19 - Thu, Dec 4
SEA
Seattle
SAN
San Diego
CA $255 Roundtrip, found 2 days ago
CA $255
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Wed, Nov 19 from Seattle to San Diego, returning Thu, Dec 4, priced at CA $255 found 2 days ago
Sun, Dec 7 - Wed, Dec 10
SEA
Seattle
SAN
San Diego
CA $259 Roundtrip, found 3 days ago
CA $259
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Sun, Dec 7 from Seattle to San Diego, returning Wed, Dec 10, priced at CA $259 found 3 days ago
Fri, Jan 30 - Sat, Feb 7
SEA
Seattle
SAN
San Diego
CA $260 Roundtrip, found 14 hours ago
CA $260
Roundtrip
found 14 hours ago
Select Alaska Airlines flight, departing Fri, Jan 30 from Seattle to San Diego, returning Sat, Feb 7, priced at CA $260 found 14 hours ago
Fri, Jan 9 - Sat, Jan 17
SEA
Seattle
SAN
San Diego
CA $261 Roundtrip, found 21 hours ago
CA $261
Roundtrip
found 21 hours ago
Select Delta flight, departing Fri, Jan 9 from Seattle to San Diego, returning Sat, Jan 17, priced at CA $261 found 21 hours ago
Tue, Jan 13 - Sun, Jan 18
SEA
Seattle
SAN
San Diego
CA $262 Roundtrip, found 3 days ago
CA $262
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Tue, Jan 13 from Seattle to San Diego, returning Sun, Jan 18, priced at CA $262 found 3 days ago
Thu, Dec 4 - Sat, Dec 6
SEA
Seattle
SAN
San Diego
CA $264 Roundtrip, found 2 days ago
CA $264
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Thu, Dec 4 from Seattle to San Diego, returning Sat, Dec 6, priced at CA $264 found 2 days 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.