Cheap flights from San Diego to Denver

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

Travelers usually depart from San Diego International, San Diego bus station, San Diego Old Town station, San Diego-La Jolla, or San Diego-Balboa Park when they travel from San Diego to Denver. Book your trip to arrive at Denver International, Denver Union Station, or Denver Greyhound station. The distance between San Diego and Denver is 1372 km. The most popular airlines for this route are Southwest Airlines, United Airlines, Frontier Airlines, Delta Air Lines, and Alaska Airlines. San Diego and Denver have 195 direct flights per week.

Weekly flights

MondaysTuesdaysWednesdaysThursdaysFridaysSaturdaysSundays
Number of flights49373433-2022

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.

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

Check-in for a flight from San Diego to Denver

NameCarrier codeIATA CodePassport needed during bookingAirport check-in closesOnline check-in available
Southwest AirlinesSWAWNNoUnknownNo
United AirlinesUALUAYesUnknownNo
Frontier AirlinesFFTF9NoUnknownNo
Delta Air LinesDALDLYesUnknownNo
Alaska AirlinesASAASYesUnknownNo

Frequently asked questions

How long does it take to travel from San Diego to Denver?

A one-way nonstop (direct) flight between San Diego and Denver takes around 2.4 hours.

What is the flight distance between San Diego and Denver?

The flight distance between San Diego and Denver is 1372 km.

What airlines offer nonstop (direct) flights between San Diego and Denver?

Several carriers operate flights between San Diego and Denver. Airlines offering nonstop (direct) flights include Frontier Airlines, United Airlines, Southwest Airlines.

What are the most popular routes to and from San Diego?

Travelers frequently search for route combinations, such as San Diego and McCarran International, Miami International, Denver International, San Francisco International, George Bush Intercontinental, Seattle–Tacoma International, Phoenix Sky Harbor International, Tampa International, O Hare International, Minneapolis–Saint Paul International, Salt Lake City International.

What are the most popular routes to and from Denver?

Travelers frequently search for route combinations, such as Denver and Los Angeles International, McCarran International, Miami International, Newark Liberty International, Phoenix Sky Harbor International, Seattle–Tacoma International, Minneapolis–Saint Paul International, O Hare International, Salt Lake City International, Philadelphia International, Austin–Bergstrom International.

Which airports are there in San Diego?

San Diego is mainly served by San Diego International. But there are other airports nearby, including Marine Corps Air Station Miramar, McClellan–Palomar.

What airports are near San Diego?

The main airport in San Diego is San Diego International. It is also served by Tijuana International, John Wayne, Hollywood Burbank, Ontario International, Mexicali International, Palm Springs International, Long Beach, Imperial County, Yuma International, Cable.

What airports are near Denver?

The main airport in Denver is Denver International. It is also served by Colorado Springs, Laramie Regional, Pueblo Memorial, Eagle County Regional, Cheyenne Regional.

What buses and trains depart from San Diego?

A number of bus and train companies depart from San Diego, including Amtrak train.

Is it possible to combine flights, buses, and trains in one itinerary when traveling between San Diego and Denver?

What is Virtual Interlining and how do I use it?

Which airlines fly between San Diego and Denver?

When's the best time to travel between San Diego and Denver?

What flights operate between San Diego and Denver?

How many airports are there near San Diego?

How many airports are there near Denver?

Is it possible to reach San Diego by bus or train?

What time do nonstop (direct) flights between San Diego and Denver depart?

What time do nonstop (direct) flights between San Diego and Denver arrive?

What time do flights between San Diego and Denver depart?

What time do flights between San Diego and Denver 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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