Cheap Flights from Denver, CO to San Diego, CA from $71

Return flight: San Diego – Denver
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On Cheapflightsplus.com you will find 19 direct and 303 connecting flights from Denver to San Diego. You can compare airfare deals from 7 airlines and multiple travel sites from $71, book and save on cheap plane tickets and last minute offers. Also check out DEN-SAN flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Denver to San Diego Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $71 (one-way), $122 (round-trip).
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Best Flights from Denver to San Diego Today

Take a look at the list of non stop flights and flights with layovers from Denver to San Diego with the lowest price of $71. The fastest direct flight takes 2h 21m and the fastest connecting – 4h 24m.
Price Departure Arrival Flight Duration Airline Flight
from $36
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22:29
Denver
Denver International
 23:59
San Diego
San Diego
 2h 30m Frontier Airlines
F92421
from $58
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09:44
Denver
Denver International
 11:10
San Diego
San Diego
 2h 26m Frontier Airlines
F92817
from $67
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19:14
Denver
Denver International
 20:38
San Diego
San Diego
 2h 24m United Airlines
UA540
Show all tickets
*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on September 14, 2025
Full flight schedule will help you in detecting at what time planes fly from Denver to San Diego. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.
Departure Arrival Flight Details Flight Duration Price
07:01 — 08:25
07:01 — 08:25 HA4808 Hawaiian Airlines
Denver — San Diego
2h 24m
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from$77
07:01 — 08:25
07:01 — 08:25 AS1127 Alaska Airlines
Denver — San Diego
2h 24m
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from$81
09:44 — 11:10
09:44 — 11:10 F92817 Frontier Airlines
Denver — San Diego
2h 26m
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from$58
11:28 — 12:52
11:28 — 12:52 UA583 United Airlines
Denver — San Diego
2h 24m
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from$127
13:38 — 14:59
13:38 — 14:59 UA1302 United Airlines
Denver — San Diego
2h 21m
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from$127
15:00 — 16:23
15:00 — 16:23 HA4809 Hawaiian Airlines
Denver — San Diego
2h 23m
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from$77
15:00 — 16:23
15:00 — 16:23 AS1129 Alaska Airlines
Denver — San Diego
2h 23m
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from$81
16:03 — 17:24
16:03 — 17:24 UA1281 United Airlines
Denver — San Diego
2h 21m
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from$117
18:10 — 19:39
18:10 — 19:39 F94989 Frontier Airlines
Denver — San Diego
2h 29m
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from$58
19:14 — 20:38
19:14 — 20:38 UA540 United Airlines
Denver — San Diego
2h 24m
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from$67
19:50 — 21:19
19:50 — 21:19 HA4813 Hawaiian Airlines
Denver — San Diego
2h 29m
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from$77
19:50 — 21:19
19:50 — 21:19 AS3025 Alaska Airlines
Denver — San Diego
2h 29m
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from$81
20:50 — 22:14
20:50 — 22:14 UA1835 United Airlines
Denver — San Diego
2h 24m
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from$106
22:29 — 23:59
22:29 — 23:59 F92421 Frontier Airlines
Denver — San Diego
2h 30m
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from$36
22:29 — 23:50
22:29 — 23:50 F92711 Frontier Airlines
Denver — San Diego
2h 21m
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from$71
*Departure and arrival times - local. Updated on September 14, 2025

Flight Information

Below we will explain in detail what the flights cost on the destination from Denver to San Diego depends on and how to choose the most interesting flight option for you.

Distance between Denver and San Diego is 1371 miles. Time difference between the cities is 1h. Airplanes depart 05:02 to 23:59 from 2 Denver airports and arrive 05:02 to 23:59 to 11 San Diego airports. Average flight time is 2h 24m.

  • The fastest flight 2h 21m
  • Average flight time 2h 24m
  • The earliest flight 05:02
  • The latest flight 23:59
  • Distance 852 ml

Popular Airlines on the Route

The flight Denver — San Diego is served by 7 regular airlines and 3 low-cost airlines. Most of the flights on this route are operated by Alaska Airlines - 36 departures per week at the price of from $ 81 . And the most expensive tickets are offered by United Airlines airline - from $ 787.

Direct flights

There are 19 nonstop flights on the route. The fastest direct flight is F92711 by Frontier Airlines takes 2h 21m.

  • AS - Alaska Airlines
    from $81
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  • F9 - Frontier Airlines
    from $36
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  • HA - Hawaiian Airlines
    from $77
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  • UA - United Airlines
    from $67
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See more direct flights

Connecting Flights

There are 303 flights with layovers on the route. The fastest connecting flight is F93861 by Frontier Airlines takes 4h 24m.

  • AS - Alaska Airlines
    from $113
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  • F9 - Frontier Airlines
    from $81
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  • SY - Sun Country Airlines
    from $156
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  • HA - Hawaiian Airlines
    from $104
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  • MX - Mexicana
    from $527
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  • UA - United Airlines
    from $120
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  • G4 - Allegiant Air
    from $163
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See more connecting flights

Airports

You can fly from Denver to San Diego from 2 airports (Denver International, Arapahoe Co).

Denver airports

  • Denver International-DEN
    from $36
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  • Arapahoe Co-APA
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San Diego airports

  • San Diego-SAN
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  • San Diego Regional-USA
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  • Gillespie Field-SEE
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  • Golden Triangle Reg.-GTR
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  • El Cajon-CJN
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  • Lowndes County-UBS
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  • Miramar NAS-NKX
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  • Montgomery Field-MYF
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  • North Island NAS-NZY
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  • Brown Field Municipal-SDM
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  • AFB-CBM
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Airplanes

There are flights to San Diego from Denver by 7 airlines that use 1 aircraft brands. They range from huge modern airplanes to small-sized.

  • Boeing 737-900
    from $67
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Top Domestic Destinations from Denver

You may also consider searching for discounted plane tickets to some other popular places from Denver within United States.

Top International Destinations from Denver

Our state-of-the art metasearch will definitely provide you with the best airfare on international flights. We’re proud to partner with many reliable travel suppliers located outside the US what gives us an opportunity to offer the most competitive prices on far destinations.

How to book a plane ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

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