S$140 Cheap Flights from San Diego to Seattle

View S$140 flight on Tue, 26 Aug, 2025Opens in a new window

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

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

Prices were available within the past 7 days and start at S$140 for one-way flights and S$242 for return, for the period specified. Prices and availability are subject to change. Additional terms apply.
Delta
Sat, 1 Nov - Mon, 10 Nov
SAN
San Diego
SEA
Seattle
S$242
Return
Found 2 days ago
Select Delta flight, departing Sat, 1 Nov from San Diego to Seattle, returning Mon, 10 Nov, priced at S$242 Found 2 days ago
Delta
Fri, 31 Oct - Sun, 2 Nov
SAN
San Diego
SEA
Seattle
S$255
Return
Found 2 days ago
Select Delta flight, departing Fri, 31 Oct from San Diego to Seattle, returning Sun, 2 Nov, priced at S$255 Found 2 days ago
Delta
Fri, 31 Oct - Sun, 2 Nov
SAN
San Diego
SEA
Seattle
S$280
Return
Found 2 days ago
Select Delta flight, departing Fri, 31 Oct from San Diego to Seattle, returning Sun, 2 Nov, priced at S$280 Found 2 days ago
Delta
Sat, 5 Jul - Mon, 7 Jul
SAN
San Diego
SEA
Seattle
S$330
Return
Found 19 hours ago
Select Delta flight, departing Sat, 5 Jul from San Diego to Seattle, returning Mon, 7 Jul, priced at S$330 Found 19 hours ago
United
Sat, 1 Nov - Mon, 10 Nov
SAN
San Diego
SEA
Seattle
S$332
Return
Found 2 days ago
Select United flight, departing Sat, 1 Nov from San Diego to Seattle, returning Mon, 10 Nov, priced at S$332 Found 2 days ago
Delta
Wed, 16 Jul - Sun, 20 Jul
SAN
San Diego
SEA
Seattle
S$332
Return
Found 4 days ago
Select Delta flight, departing Wed, 16 Jul from San Diego to Seattle, returning Sun, 20 Jul, priced at S$332 Found 4 days ago
United
Sat, 1 Nov - Mon, 10 Nov
SAN
San Diego
SEA
Seattle
S$339
Return
Found 2 days ago
Select United flight, departing Sat, 1 Nov from San Diego to Seattle, returning Mon, 10 Nov, priced at S$339 Found 2 days ago
American Airlines
Sat, 1 Nov - Mon, 10 Nov
CLD
Carlsbad
SEA
Seattle
S$343
Return
Found 2 days ago
Select American Airlines flight, departing Sat, 1 Nov from Carlsbad to Seattle, returning Mon, 10 Nov, priced at S$343 Found 2 days ago
United
Fri, 31 Oct - Sun, 2 Nov
SAN
San Diego
SEA
Seattle
S$345
Return
Found 2 days ago
Select United flight, departing Fri, 31 Oct from San Diego to Seattle, returning Sun, 2 Nov, priced at S$345 Found 2 days ago
Hawaiian Airlines
Sat, 1 Nov - Mon, 10 Nov
SAN
San Diego
SEA
Seattle
S$1,514
Return
Found 2 days ago
Select Hawaiian Airlines flight, departing Sat, 1 Nov from San Diego to Seattle, returning Mon, 10 Nov, priced at S$1,514 Found 2 days ago
San Diego to Seattle route information
Origin airport
San Diego Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
American Airlines, Delta, Hawaiian Airlines, United
Return price
S$242
Distance
1681 km
Average flight time
2 hours 59 mins

Perfect flights from San Diego to Seattle

Your Journey from San Diego to Seattle

Start your unforgettable journey with Expedia. Our broad selection of flights from San Diego to Seattle caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
 

Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including Delta, American Airlines, United, Hawaiian Airlines. Our selection of flights from San Diego Intl. to Seattle - Tacoma Intl. caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 20 airlines, you're bound to find the perfect flight.
 

Maximizing Value with San Diego to Seattle Flights

Experience the joy of finding cheap flights from San Diego Intl. to Seattle - Tacoma Intl. that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$140 and roundtrip prices from S$242*.
 

Pre-Flight Essentials

Ensure a smooth journey from San Diego to Seattle with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant Seattle

Picture yourself stepping off the plane in Seattle and immersing yourself in the unique atmosphere of Seattle. From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your San Diego to Seattle Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from San Diego to Seattle.
 

Beyond the Flight – Exploring Seattle

With Expedia, your adventure extends beyond the flight. Explore Seattle at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from San Diego to Seattle with Confidence

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from San Diego to Seattle with confidence. Book your travel arrangements with Expedia today.
 
*Note: Prices may vary based on availability and are subject to change.

Frequently asked questions

How much is a flight from San Diego Airport to Sea-Tac Airport?
Start packing your suitcase, because round-trip journeys from San Diego Intl. Airport (SAN) to Seattle - Tacoma Intl. Airport (SEA) start from S$242. That’s based on airfares available within the last 7 days on Expedia for flights departing within the next year. Prices can change quickly, so book today to get the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from SAN to Seattle - Tacoma Intl. Airport (SEA)?
This can differ between air carriers, as each one has its own set of terms and conditions. Visit the Customer Service Portal, where you’ll find instructions on how to cancel online.
How do I find cheap flights from SAN to SEA 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 San Diego Intl. Airport (SAN) to SEA flights, you’ll see a “no change fees” filter for you to select.
How far is the flight from SAN to SEA?
The flight distance from SAN to Sea-Tac Airport is 1,700 kilometres. Pack yourself a snack, a drink and a laptop filled with movies. Keep yourself entertained and the hours will zip by.
Which airlines fly direct from San Diego Airport to Seattle - Tacoma Intl. Airport (SEA)?
Many savvy travellers choose to fly with Alaska Airlines (AS) from San Diego Intl. Airport (SAN) to SEA. This popular airline offers 225 flights a month, so you can pick a flight time that’s right for you. Operating 152 flights a month on this route, Delta Air Lines (DL) is another fantastic option.
Are SAN to Seattle - Tacoma Intl. Airport (SEA) flight tickets cheaper when they're purchased at the last minute?
It is possible to get amazing last-minute deals from SAN to Seattle - Tacoma Intl. Airport (SEA), but it’s also possible to miss out altogether! As many airlines publish prices up to a year in advance, it’s worth keeping an eye on fares early and being ready to pounce when you see a good bargain. Expedia compares carrier prices and updates flight deals frequently, so you can rest easy knowing you’re always getting the latest offers.

Explore a world of travel with Expedia

Seattle Airports

Seattle Paine Field Intl. Airport

San Diego Airports

Carlsbad

*Available to Expedia members.