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Flights from Denver to San Diego Starting at AU$ 40

We've found these cheap flights for you. You can book one-way or return flight tickets.

  • One way
  • Return

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Find the best time to fly from Denver to San Diego

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
Airlines Flying from Denver to San Diego

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Frontier Airlines
From AU$ 40
Southwest Airlines
From AU$ 99
Delta Air Lines
From AU$ 134
United Airlines
From AU$ 143
American Airlines
From AU$ 145
Alaska Airlines
From AU$ 246
Sun Country Airlines
From AU$ 260
ANA airlines

Find more flights and airlines

Alternative Routes from Denver to San Diego

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from Denver to San Diego.

  • Cheapest
    Frontier Airlines
    DEN
    05:30
    2h 30m
    Direct
    SAN
    07:00
    Denver International Airport - San Diego International Airport
    Tue, Apr 23Frontier Airlines
    AU$ 40
  • Frontier Airlines
    DEN
    05:30
    2h 30m
    Direct
    SAN
    07:00
    Denver International Airport - San Diego International Airport
    Tue, Apr 23Frontier Airlines
    AU$ 40
    Find More Flights

How do I find the cheapest flights?

  • When are flight from Denver (DEN) to San Diego (SAN) the cheapest?

    Airlines adjust prices for flights from Denver to San Diego based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.
  • How much are flights from Denver (DEN) to San Diego (SAN) cost?

    According to Trip.com's data, the lowest price is around AU$ 412.
  • How long is the flights from Denver (DEN) to San Diego (SAN)?

    It takes about 3 hours 16 minutes to fly from Denver (DEN) to San Diego (SAN).
  • What is the transportation method from the main airport to downtown in San Diego?

    • The distance from San Diego International Airport to downtown is about 3km, by taxi about 20 minutes.
  • What time does the earliest flight from Denver to San Diego depart?

    The earliest flight departs from Denver (DEN) at 06:00 and arrives in San Diego (SAN) at 07:24.
  • What time does the latest flight from Denver to San Diego depart?

    The latest flight departs from Denver (DEN) at 20:40 and arrives in San Diego (SAN) at 22:04.
  • What are the most popular airlines that fly from Denver (DEN) to San Diego (SAN)?

    Airlines with flights from Denver (DEN) to San Diego (SAN): Southwest Airlines, Volaris and United Airlines.
  • What's the most popular airline for direct flights from Denver (DEN) to San Diego (SAN)?

    Frontier Airlines operates 1 direct flights from Denver (DEN) to San Diego (SAN).
  • How many airports in San Diego (SAN)?

Flight Information from Denver to San Diego

Cheapest direct flight price

AU$ 39

Cheapest return ticket price

AU$ 75

Off-season for travel

January

Peak season for travel

September