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฿3,620 Cheap Flights from Seattle (SEA) to San Diego (SAN)

View ฿3,620 flight on Sat, 5 Sept 2026Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to San Diego Intl. Airport (SAN)

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

Prices were available within the past 7 days and start at ฿3,620 for one-way flights and ฿5,290 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 5 Sept - Fri, 11 Sept
SEA
Seattle
SAN
San Diego
฿5,290 Return, found 3 days ago
฿5,290
Return
found 3 days ago
Select Delta flight, departing Sat, 5 Sept from Seattle to San Diego, returning Fri, 11 Sept, priced at ฿5,290 found 3 days ago
Delta
Sat, 5 Sept - Sat, 12 Sept
SEA
Seattle
SAN
San Diego
฿5,900 Return, found 1 day ago
฿5,900
Return
found 1 day ago
Select Delta flight, departing Sat, 5 Sept from Seattle to San Diego, returning Sat, 12 Sept, priced at ฿5,900 found 1 day ago
Southwest Airlines
Sat, 5 Sept - Sun, 6 Sept
SEA
Seattle
SAN
San Diego
฿5,940 Return, found 6 days ago
฿5,940
Return
found 6 days ago
Select Southwest Airlines flight, departing Sat, 5 Sept from Seattle to San Diego, returning Sun, 6 Sept, priced at ฿5,940 found 6 days ago
Delta
Sun, 6 Sept - Sat, 12 Sept
SEA
Seattle
SAN
San Diego
฿5,960 Return, found 6 days ago
฿5,960
Return
found 6 days ago
Select Delta flight, departing Sun, 6 Sept from Seattle to San Diego, returning Sat, 12 Sept, priced at ฿5,960 found 6 days ago
Delta
Sat, 5 Sept - Sun, 6 Sept
SEA
Seattle
SAN
San Diego
฿6,625 Return, found 6 days ago
฿6,625
Return
found 6 days ago
Select Delta flight, departing Sat, 5 Sept from Seattle to San Diego, returning Sun, 6 Sept, priced at ฿6,625 found 6 days ago
Delta
Sat, 17 Oct - Sat, 24 Oct
SEA
Seattle
SAN
San Diego
฿6,630 Return, found 6 days ago
฿6,630
Return
found 6 days ago
Select Delta flight, departing Sat, 17 Oct from Seattle to San Diego, returning Sat, 24 Oct, priced at ฿6,630 found 6 days ago
Delta
Sat, 5 Sept - Sun, 6 Sept
SEA
Seattle
SAN
San Diego
฿6,965 Return, found 6 days ago
฿6,965
Return
found 6 days ago
Select Delta flight, departing Sat, 5 Sept from Seattle to San Diego, returning Sun, 6 Sept, priced at ฿6,965 found 6 days ago
Southwest Airlines
Sat, 17 Oct - Sat, 24 Oct
SEA
Seattle
SAN
San Diego
฿7,275 Return, found 6 days ago
฿7,275
Return
found 6 days ago
Select Southwest Airlines flight, departing Sat, 17 Oct from Seattle to San Diego, returning Sat, 24 Oct, priced at ฿7,275 found 6 days ago
United
Sat, 5 Sept - Sun, 6 Sept
SEA
Seattle
SAN
San Diego
฿8,470 Return, found 6 days ago
฿8,470
Return
found 6 days ago
Select United flight, departing Sat, 5 Sept from Seattle to San Diego, returning Sun, 6 Sept, priced at ฿8,470 found 6 days ago
American Airlines
Sat, 5 Sept - Fri, 11 Sept
SEA
Seattle
SAN
San Diego
฿10,325 Return, found 3 days ago
฿10,325
Return
found 3 days ago
Select American Airlines flight, departing Sat, 5 Sept from Seattle to San Diego, returning Fri, 11 Sept, priced at ฿10,325 found 3 days ago

Find the cheapest month to fly from Seattle (SEA) to San Diego (SAN)

October is typically the cheapest month to fly

From ฿3,905 - ฿5,242 per traveller.

Frequently asked questions

How much is a flight from SEA to San Diego Airport?
Based on airfares available within the last 7 days on Expedia for flights departing within the next year, round-trip journeys from Seattle - Tacoma Intl. Airport (SEA) to San Diego Airport start from ฿5,290. Book now to score the best price for your journey. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from SEA to San Diego Intl. Airport (SAN)?
The majority of flights can be cancelled online, but whether you incur a fee varies between airlines. If you do have to cancel your break, follow the instructions in the Customer Service Portal.
How do I find cheap flights from SEA to San Diego Intl. Airport (SAN) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Seattle - Tacoma Intl. Airport (SEA) to SAN flights, you'll see a "no change fees" filter for you to select.
How far is the flight from SEA to SAN?
The flight distance from SEA to San Diego Intl. Airport (SAN) is 1,700 kilometres. Bring along a drink, a snack and a few good podcasts. Keep yourself entertained and the hours will fly by.
Which airlines fly direct from SEA to SAN?
There are several airlines that fly directly from Sea-Tac Airport to San Diego Intl. Airport (SAN). Alaska Airlines (AS) is a top choice, offering 225 flights on this route each month. If you want more options, check out the deals with Delta Air Lines (DL). This carrier operates 152 flights every month between these airports.
Are Seattle - Tacoma Intl. Airport (SEA) to SAN flight tickets cheaper when they're purchased at the last minute?
Tickets from Seattle - Tacoma Intl. Airport (SEA) to San Diego Intl. Airport (SAN) are available up to 12 months before departure on Expedia. And although you may occasionally score fantastic last-minute deals, it's not something you should count on. Also, booking your flights in advance means you'll have more choices — and you can avoid getting caught in the dreaded middle seat! We regularly update our fares to make sure you get the biggest bargains, so check back often for all the latest specials.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
San Diego Intl.
Roundtrip price
฿5,290
Distance
1681 km
Average flight time
2 hours 50 mins

Book with confidence

Perfect flights from Seattle to San Diego

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Seattle to San Diego. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible Seattle - Tacoma Intl. to San Diego Intl. ticket options cater to your travel preferences, with incredible one-way fares from ฿3,620 and roundtrip prices from ฿5,290. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at San Diego Intl. and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in San Diego.
Perfect flights from Seattle to San Diego
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