Cheap flights from Denver to San Diego

Choose between Frontier Airlines, United Airlines, or Spirit Airlines to find the best price

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San Diego travel tips

1) Want to learn more about San Diego in museums?

Visit Balboa Park – this is not an ordinary park but a huge green space, which houses the famous San Diego Zoo, 15 museums, and a children's railway. The list of museums includes the Museum of Us and several museums dedicated to nature, space, and science.

2) Do you want to see the very first American heavy aircraft carrier in San Diego?

In the port of San Diego, the aircraft carrier USS Midway is located – the very first heavy American aircraft carrier, launched in 1945. The ship took an active part in the military activities in North Vietnam and Operation Desert Storm. Now you can get on board the ship, explore its interior, inspect the military aircraft stationed on the deck, and chat with the veterans who served on this aircraft carrier.

3) San Diego budget shopping is possible at Hillcrest

If you are low on budget but want to bring some decent items from San Diego, take a stroll around Hillcrest. You will find budget categories shops, many shops for children, vintage boutiques, and antique shops.

Travelers usually depart from Denver International, or Denver Union Station when they travel from Denver to San Diego. Book your trip to arrive at San Diego International, San Diego, CA Bus Station, San Diego, CA - Old Town, San Diego, CA - Santa Fe, or San Diego, CA - La Jolla. The distance between Denver and San Diego is 1372 km. The most popular airlines for this route are Frontier Airlines, United Airlines, Spirit Airlines, American Airlines, and Delta Air Lines. Denver and San Diego have 216 direct flights per week.

Weekly direct flights

MondaysTuesdaysWednesdaysThursdaysFridaysSaturdaysSundays
Direct flights25232949-2664
Fly direct with

Frontier Airlines on Mondays, Tuesdays, Wednesdays, Thursdays, Fridays, Saturdays, and Sundays.

United Airlines on Mondays, Tuesdays, Wednesdays, Thursdays, Fridays, Saturdays, and Sundays.

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
United AirlinesUALUAYesNo
Spirit AirlinesNKSNKNoOpens 24 days before flight
Closes 1 hours before flight
American AirlinesAALAAYesNo
Delta Air LinesDALDLYesOpens 24 days before flight
Closes 1 hours before flight

Frequently asked questions

How long does it take to travel from Denver to San Diego?
A one-way nonstop (direct) flight between Denver and San Diego takes around 2.4 hours.
What is the flight distance between Denver and San Diego?
The flight distance between Denver and San Diego is 1372 km.
What airlines offer nonstop (direct) flights between Denver and San Diego?
Several carriers operate flights between Denver and San Diego. Airlines offering nonstop (direct) flights include United Airlines, Frontier Airlines.
What are the most popular routes to and from Denver?
Travelers frequently search for route combinations, such as Denver and Las Vegas, Los Angeles, Chicago, Minneapolis, Dallas, Washington, D.C., Orlando, Phoenix, San Francisco, Houston, Austin, Atlanta, Paris, Philadelphia, New York, Miami, London, Seattle, Tampa, Detroit.
What are the most popular routes to and from San Diego?
Travelers frequently search for route combinations, such as San Diego and Las Vegas, Austin, Cincinnati, Philadelphia, New York, Phoenix, Charlotte, Washington, D.C., Atlanta, Raleigh, Chicago, Orlando, San Antonio, Detroit, Dallas, St. Louis, Cleveland, Salt Lake City, Minneapolis, London.
Which airports are there in Denver?
Denver is mainly served by Denver International. But there are other airports nearby, including Rocky Mountain Metropolitan Airport, Centennial Airport.
What airports are near Denver?
The main airport in Denver is Denver International. It is also served by Colorado Springs, Cheyenne Regional, Eagle County Regional, Laramie Regional, Pueblo Memorial.
What airports are near San Diego?
The main airport in San Diego is San Diego International. It is also served by Los Angeles International, Ontario International, Tijuana International, John Wayne, Hollywood Burbank, Mexicali International, Long Beach, Palm Springs International, Imperial County, Yuma International.
What buses and trains depart from Denver?
A number of bus and train companies depart from Denver, including Greyhound.
Is it possible to combine flights, buses, and trains in one itinerary when traveling between Denver and San Diego?
What is Virtual Interlining and how do I use it?
Which airlines fly between Denver and San Diego?
When's the best time to travel between Denver and San Diego?
What flights operate between Denver and San Diego?
How many airports are there near Denver?
How many airports are there near San Diego?
Is it possible to reach Denver by bus or train?
What time do nonstop (direct) flights between Denver and San Diego depart?
What time do nonstop (direct) flights between Denver and San Diego arrive?
What time do flights between Denver and San Diego depart?
What time do flights between Denver and San Diego arrive?

Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any A and any B in the world by plane, train, and bus. Find the cheapest routes and best deals for you, as well as the best dates on which to travel.

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