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Flights from Seattle/Tacoma (SEA) to San Diego (SAN)
Take a break from the Emerald City to spend some time in sunny San Diego. Southwest Airlines® offers flights from Seattle-Tacoma International Airport to San Diego International Airport with all the perks, plus no hidden fees. Plan your trip to San Diego with Southwest® and find flights that will make you feel like you’ve won the airfare jackpot. Are your travel plans flexible? Search for flights with our Low Fare Calendar and check out the lowest fares we’ve got. Before you go, don’t forget to explore Southwest Vacations® for package deals on flights, hotels, rental cars, and more.
Discover Seattle/Tacoma to San Diego flights and book today!
Tripadvisor has rated us #1.
Best Airline in the U.S. and North America & Best Economy Class and Low Cost Airline in North America.
During the ongoing COVID-19 pandemic, the availability, health and safety procedures, operations, and schedules for local attractions are changing constantly. Please contact attractions directly for hours of operation, potential temperature screenings, and other possible health and safety procedures and restrictions. Visit our Coronavirus Travel Information page for information about potential restrictions on air travel.
Flight details
Departing from: Seattle-Tacoma International Airport (SEA)
Arriving at: San Diego International Airport (SAN)
†Based on DOT published scheduled average flights Monday-Friday between 1/29/2021 and 3/31/2021, as of 2/4/2021.
Explore San Diego.
Imagine yourself in San Diego, California—and then make it happen! Whether you’re visiting for business, pleasure, or a mix of both, Southwest offers a variety of travel options to help you transform your California dream into a reality. San Diego is located in the southernmost region of the state along the bucolic, surfer-friendly Pacific coastline. The weather here is warm and inviting, with temperatures averaging in the 70s year round. But believe it or not, San Diego holds a few gems that outshine the sunshine. From stunning beaches with breathtaking views to an exceptional restaurant scene and more, San Diego delights visitors and residents alike with its irresistible charm, making it hard to ever leave.
Explore San Diego’s top sites during your trip. For starters, this city is home to the world-famous San Diego Zoo. See the zoo during your trip, and learn the stories of more than 3,700 animals. If you’re an ocean and/or history lover, San Diego’s Maritime Museum is a must see. At the museum, you can explore the decks of The Star of India, the world’s oldest active sailing ship.
Maybe you’re in the mood to chill and relax during your trip. If so, San Diego is the right place for that. Spend a day at one of San Diego’s beaches to soak up some sun—and some of the most beautiful coastal views the country has to offer. Looking for a bite to eat? The restaurant scene is exceptional. Just a stone’s throw from Mexico, it’s no surprise that you can find delicious Mexican cuisine in San Diego, ranging from high-end to casual restaurants. Before your trip ends, make sure to visit Balboa Park. With 16 museums, multiple performing art centers, trails, gardens, and more, Balboa Park is an excellent spot for families, solo travelers, and so much more.
Travel tips
Infancy policy
One child over 14 days and under two (2) years of age, not occupying a seat, may be carried free of charge when traveling with an adult (12 years of age or older). Learn more.
Pet policy
Customers flying with a pet are subject to a pet fare. To learn more about traveling with your furry friend, explore the Southwest® pet policy.
Unaccompanied minor
Minors under the age of 18 are not permitted to fly unaccompanied on international flights or any itinerary that includes an international flight. Learn more.
Bags fly free®1
Start packing! Every ticketed Customer’s first two checked bags are free. Learn more.
The Southwest travel experience
Make your trip from Seattle/Tacoma to San Diego memorable with Southwest. We believe a great trip from Seattle-Tacoma International Airport to San Diego International Airport is built on more than just low fares flights. That’s why we offer services and perks, from booking to boarding, that make your travel experience smoother than ever. Discover more about the Southwest® Experience before you book your Seattle/Tacoma to San Diego flight.
Simple and fun, you can’t go wrong flying with Southwest. And when you book your upcoming flight to San Diego, you won’t be burdened by hidden fees. We offer low fares and, as always, bags fly free. That’s our Transfarency® promise. Enroll in our Click 'N Save® emails to learn about our latest flight deals. If you’re looking for tours, activities, and more hidden gems, Check out getaways with Southwest® and earn Rapid Rewards® points when you fly.
1First and second checked bags. Weight and size limits apply.
2Fare difference may apply.
Questions we hear the most
There are 8 flights daily from Seattle/Tacoma to San Diego on Southwest Airlines.
To find the cheapest day and time to fly Seattle/Tacoma to San Diego with Southwest, check out our Low Fare Calendar.
