Cheap flights from Denver, CO to San Diego, CA

Flights starting at £27. Choose between Frontier Airlines, Spirit Airlines, or United Airlines to find the best price.

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Travelers usually depart from Denver International, Denver Union Station, or Rocky Mountain Metropolitan Airport when they travel from Denver to San Diego. Book your trip to arrive at San Diego International, San Diego, CA - Old Town, San Diego, CA - La Jolla, San Diego, CA - Santa Fe, or San Diego, CA Bus Station. The distance between Denver and San Diego is 1372 km. The most popular airlines for this route are Frontier Airlines, Spirit Airlines, United Airlines, Delta Air Lines, and American Airlines. Denver and San Diego have 253 direct flights per week.

Weekly direct flights

Discover the top airlines offering direct flights from Denver to San Diego in the next month. You’ll find the number of daily direct flights per airline in the table.

Weekly direct flights for Mon 18.09 - Sun 24.09

AirlineMon 18.09Tue 19.09Wed 20.09Thu 21.09Fri 22.09Sat 23.09Sun 24.09
---------------------
2322---33

Weekly direct flights for Mon 25.09 - Sun 01.10

AirlineMon 25.09Tue 26.09Wed 27.09Thu 28.09Fri 29.09Sat 30.09Sun 01.10
3166776
2323233

Weekly direct flights for Mon 02.10 - Sun 08.10

AirlineMon 02.10Tue 03.10Wed 04.10Thu 05.10Fri 06.10Sat 07.10Sun 08.10
7667776
2322222

Weekly direct flights for Mon 09.10 - Sun 15.10

AirlineMon 09.10Tue 10.10Wed 11.10Thu 12.10Fri 13.10Sat 14.10Sun 15.10
7667775
2222222

Check-in for a flight from Denver to San Diego

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
Frontier AirlinesFFTF9NoOpens 24 days before flight
Closes 1 hours before flight
Spirit AirlinesNKSNKNoOpens 24 days before flight
Closes 1 hours before flight
United AirlinesUALUAYesNo
Delta Air LinesDALDLNoOpens 24 days before flight
Closes 1 hours before flight
American AirlinesAALAANoNo

San Diego travel tips

1) Want to learn more about San Diego in museums?
2) Do you want to see the very first American heavy aircraft carrier in San Diego?
3) San Diego budget shopping is possible at Hillcrest
Learn more about COVID-19 restrictions in United States in our dedicated Stories article.

Frequently asked questions

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