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Find low faresSouthwest® flights from Denver to San Diego from $59
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Low fares from Denver to San Diego
$
Denver (DEN)to
San Diego (SAN)
Depart: 04/27/2026
One-way
Basic
From
$59
Seen: 22 hrs ago
Denver (DEN)to
San Diego (SAN)
Depart: 03/01/2026
One-way
Basic
From
$59
Seen: 20 hrs ago
Denver (DEN)to
San Diego (SAN)
Depart: 03/09/2026
One-way
Basic
From
$59
Seen: 21 hrs ago
Denver (DEN)to
San Diego (SAN)
Depart: 04/29/2026
One-way
Basic
From
$59
Seen: 9 hrs ago
Denver (DEN)to
San Diego (SAN)
Depart: 05/10/2026
One-way
Basic
From
$59
Seen: 10 hrs ago
Denver (DEN)to
San Diego (SAN)
Depart: 03/04/2026
One-way
Basic
From
$59
Seen: 7 hrs ago
Explore flights from Denver to San Diego
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Flight Details
Departing from:
Denver International Airport
Arriving at:
San Diego International Airport
Average flight time:
2 hours 22 minutes
Distance:
853 miles
Route Information
156† Weekly flights
- 7‡ Nonstop flights per day Monday through Friday
- 5‡ Nonstop flights on Saturday
- 7‡ Nonstop flights on Sunday
† Weekly flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025. Note: route may not operate every day of the week.
‡ Nonstop flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025.
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.
Questions we hear the most
The average flight time from Denver to San Diego is 2 hours 22 minutes.
There are 156 weekly flights from Denver to San Diego on Southwest Airlines.
Yes, Southwest flies nonstop from Denver to San Diego 7 times per day from Monday through Friday.
Yes, Southwest flies nonstop from Denver to San Diego 5 times per day on Saturdays and 7 times per day on Sundays.
To find the lowest fares by day and time to fly Denver to San Diego with Southwest, check out our Low Fare Calendar.
You can rent a car at San Diego International Airport book yours with your flight.
Yes! Flights from Denver to San Diego—or from here or there to anywhere—can be changed with no change fees. Fare difference may apply.
Check the status of your upcoming Southwest flight.
Check out the Southwest Airlines® Help Center for answers about everything Southwest.