Flights from Denver (DEN) to San Diego (SAN)

Trade your view of the Rocky Mountains for a view of the Pacific coastline! Southwest Airlines® has flights from Denver International Airport to San Diego International Airport that make booking your next trip simple. Find your next flight to San Diego with Southwest® and book with confidence. If your upcoming getaway has flexible dates, browse flights over a range of dates with our Low Fare Calendar and uncover the lowest fares we’ve got. If you want to find package deals, don’t forget to explore Southwest Vacations® for deals on flights, hotels, rental cars, and more!

Check out Denver to San Diego flights and book yours today!

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Check out Denver to San Diego flights and book yours now!

Middle seats open through November 30

Full exchange of fresh, outdoor air every 2-3 minutes while inflight

Face coverings required

Flight details

Average flight time: 2 hours 27 minutes

Departing from: Denver International Airport (DEN)

Arriving at: San Diego International Airport (SAN)


Route information*


Nonstop flightsper day


Daily flights


Weekly flights


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*Based on DOT published scheduled average flights Monday-Friday between 8/20/2020 and 4/11/2021, as of 8/20/2020.

Explore San Diego

Layer on the sunscreen and get ready to catch some rays in sunny San Diego! The destination nicknamed America’s Finest City has over 68 miles of beaches, making it a favorite spot for surfers, families, and watersport enthusiasts alike. Choose from beachy spots including La Jolla Shores—popular for kayaking, snorkeling, and scuba diving—classic Mission Beach Boardwalk, and laid-back Coronado Beach. Tired of the beach but still want to enjoy the weather? Partake in other outdoor activities such as hiking through the salt marshes and waterfowl refuges of Torrey Pines State Reserve and whale watching at Sunset Cliffs Natural Park.

San Diego, the oldest city in California, has a rich cultural history and many notable landmarks. Take a tour of the USS Midway Aircraft Carrier Museum—one of the United States military's largest ships—or visit the museum at California’s first mission, Mission Basilica San Diego de Alcala. Wander through the shops and galleries in the historic Gaslamp Quarter and admire the restored late-19th- and early 20th-century Victorian buildings.

Downtown San Diego is just minutes from the airport, so your vacation can get started right away! Kids and adults alike will love a visit to the world-famous San Diego Zoo. And no trip to San Diego is complete without visiting Balboa Park, home to the botanical gardens, the Museum of Man, the Museum of Natural History, and the San Diego Museum of Art.

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

At Southwest, we know that a taking memorable trip from Denver to San Diego starts with more than just finding cheap flights from Denver International Airport to San Diego International Airport, which is why we offer services and perks, from booking to boarding, that will make your travel experience as smooth as possible. Check out the Southwest® Experience and learn more before you book your Denver to San Diego flight.

It’s simple and fun to fly with Southwest, no matter which of our many destinations you choose. And you know you won’t be hassled by hidden fees when you search for your next flight to San Diego International—we offer low fares and, as always, bags fly free. That’s our Transfarency® promise. Enroll in our Click 'N Save® emails and be the first to know about our latest flight deals. Looking for more tours, activities, and hidden gems? Explore Southwest Airlines® Experiences and earn Rapid Rewards® points when you fly.

1First and second checked bags. Weight and size limits apply.

2Fare difference may apply.