S$128 Cheap Flights from San Diego to Seattle

View S$128 flight on Sat, 22 Nov, 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$128 for one-way flights and S$255 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Fri, 31 Oct - Sun, 2 Nov
SAN
San Diego
SEA
Seattle
S$255 Return, found 5 days ago
S$255
Return
found 5 days ago
Select Delta flight, departing Fri, 31 Oct from San Diego to Seattle, returning Sun, 2 Nov, priced at S$255 found 5 days ago
Delta
Sun, 16 Nov - Sun, 23 Nov
SAN
San Diego
SEA
Seattle
S$256 Return, found 6 days ago
S$256
Return
found 6 days ago
Select Delta flight, departing Sun, 16 Nov from San Diego to Seattle, returning Sun, 23 Nov, priced at S$256 found 6 days ago
Delta
Thu, 25 Dec - Thu, 1 Jan
SAN
San Diego
SEA
Seattle
S$268 Return, found 21 hours ago
S$268
Return
found 21 hours ago
Select Delta flight, departing Thu, 25 Dec from San Diego to Seattle, returning Thu, 1 Jan, priced at S$268 found 21 hours ago
Delta
Fri, 31 Oct - Sun, 2 Nov
SAN
San Diego
SEA
Seattle
S$281 Return, found 5 days ago
S$281
Return
found 5 days ago
Select Delta flight, departing Fri, 31 Oct from San Diego to Seattle, returning Sun, 2 Nov, priced at S$281 found 5 days ago
Delta
Sun, 16 Nov - Sun, 23 Nov
SAN
San Diego
SEA
Seattle
S$288 Return, found 6 days ago
S$288
Return
found 6 days ago
Select Delta flight, departing Sun, 16 Nov from San Diego to Seattle, returning Sun, 23 Nov, priced at S$288 found 6 days ago
United
Fri, 31 Oct - Sun, 2 Nov
SAN
San Diego
SEA
Seattle
S$320 Return, found 5 days ago
S$320
Return
found 5 days ago
Select United flight, departing Fri, 31 Oct from San Diego to Seattle, returning Sun, 2 Nov, priced at S$320 found 5 days ago
United
Fri, 31 Oct - Sun, 2 Nov
SAN
San Diego
SEA
Seattle
S$327 Return, found 5 days ago
S$327
Return
found 5 days ago
Select United flight, departing Fri, 31 Oct from San Diego to Seattle, returning Sun, 2 Nov, priced at S$327 found 5 days ago
American Airlines
Fri, 31 Oct - Sun, 2 Nov
SAN
San Diego
SEA
Seattle
S$327 Return, found 5 days ago
S$327
Return
found 5 days ago
Select American Airlines flight, departing Fri, 31 Oct from San Diego to Seattle, returning Sun, 2 Nov, priced at S$327 found 5 days ago
Delta
Sun, 16 Nov - Sun, 23 Nov
SAN
San Diego
SEA
Seattle
S$334 Return, found 6 days ago
S$334
Return
found 6 days ago
Select Delta flight, departing Sun, 16 Nov from San Diego to Seattle, returning Sun, 23 Nov, priced at S$334 found 6 days ago
Hawaiian Airlines
Thu, 25 Dec - Thu, 1 Jan
SAN
San Diego
SEA
Seattle
S$1,883 Return, found 21 hours ago
S$1,883
Return
found 21 hours ago
Select Hawaiian Airlines flight, departing Thu, 25 Dec from San Diego to Seattle, returning Thu, 1 Jan, priced at S$1,883 found 21 hours ago

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

January is typically the cheapest month to fly

From S$112 - S$292 per traveller.

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$255. 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.

Travel information

Travel information

Origin airport
San Diego Intl.
Destination airport
Seattle - Tacoma Intl.
Return price
S$255
Distance
1681 km
Average flight time
3 hours 7 mins

Book with confidence

Book with confidence

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, United, American Airlines, 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$128 and roundtrip prices from S$255*.
 

Pre-Flight Essentials

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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.
Perfect flights from San Diego to Seattle

Explore a world of travel with Expedia

Explore a world of travel with Expedia

Seattle Airports

Seattle Paine Field Intl. Airport

San Diego Airports

Carlsbad

*Available to Expedia members.