Cheap Flights from Denver, CO to San Diego, CA from $27

Return flight: San Diego – Denver

On Cheapflightsplus.com you will find 19 direct and 287 connecting flights from Denver to San Diego. You can compare airfare deals from 7 airlines and multiple travel sites from $27, 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: $27 (one-way), $46 (round-trip).
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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$60
07:01 — 08:25
07:01 — 08:25 AS1127 Alaska Airlines
Denver — San Diego
2h 24m
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from$63
07:45 — 09:09
07:45 — 09:09 UA2309 United Airlines
Denver — San Diego
2h 24m
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from$82
09:44 — 11:10
09:44 — 11:10 F92817 Frontier Airlines
Denver — San Diego
2h 26m
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from$44
11:22 — 12:46
11:22 — 12:46 UA2381 United Airlines
Denver — San Diego
2h 24m
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from$122
11:28 — 12:52
11:28 — 12:52 UA583 United Airlines
Denver — San Diego
2h 24m
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from$99
11:28 — 12:52
11:28 — 12:52 UA2412 United Airlines
Denver — San Diego
2h 24m
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from$114
11:33 — 12:57
11:33 — 12:57 UA1940 United Airlines
Denver — San Diego
2h 24m
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from$91
13:38 — 14:59
13:38 — 14:59 UA1302 United Airlines
Denver — San Diego
2h 21m
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from$91
15:00 — 16:23
15:00 — 16:23 HA4809 Hawaiian Airlines
Denver — San Diego
2h 23m
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from$60
15:00 — 16:23
15:00 — 16:23 AS1129 Alaska Airlines
Denver — San Diego
2h 23m
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from$63
16:03 — 17:24
16:03 — 17:24 UA1281 United Airlines
Denver — San Diego
2h 21m
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from$90
18:10 — 19:39
18:10 — 19:39 F94989 Frontier Airlines
Denver — San Diego
2h 29m
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from$44
19:14 — 20:38
19:14 — 20:38 UA540 United Airlines
Denver — San Diego
2h 24m
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from$82
19:50 — 21:19
19:50 — 21:19 HA4813 Hawaiian Airlines
Denver — San Diego
2h 29m
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from$60
19:50 — 21:19
19:50 — 21:19 AS3025 Alaska Airlines
Denver — San Diego
2h 29m
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from$63
20:50 — 22:14
20:50 — 22:14 UA1835 United Airlines
Denver — San Diego
2h 24m
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from$82
22:29 — 23:59
22:29 — 23:59 F92421 Frontier Airlines
Denver — San Diego
2h 30m
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from$27
22:29 — 23:50
22:29 — 23:50 F92711 Frontier Airlines
Denver — San Diego
2h 21m
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from$44
06:01 — 18:07
06:01 — 09:09 F91324 Frontier Airlines
Denver — Dallas
7h 41m stop
16:50 — 18:07 F91425 Frontier Airlines
Dallas — San Diego
13h 6m
including layover
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from$68
06:08 — 12:52
06:08 — 07:50 UA2367 United Airlines
Denver — San Francisco
3h 20m stop
11:10 — 12:52 UA682 United Airlines
San Francisco — San Diego
7h 44m
including layover
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from$93
07:00 — 10:24
16:00 — 17:39 F93861 Frontier Airlines
Denver — Salt Lake City
57m stop
09:29 — 10:26 F91901 Frontier Airlines
Salt Lake City — San Diego
4h 24m
including layover
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from$63
08:02 — 12:52
08:02 — 09:44 UA2391 United Airlines
Denver — San Francisco
1h 26m stop
11:10 — 12:52 UA682 United Airlines
San Francisco — San Diego
5h 50m
including layover
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from$93
08:02 — 12:52
08:02 — 09:44 UA1152 United Airlines
Denver — San Francisco
1h 26m stop
11:10 — 12:52 UA682 United Airlines
San Francisco — San Diego
5h 50m
including layover
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from$94
09:10 — 15:11
07:30 — 08:34 F91375 Frontier Airlines
Denver — Phoenix
3h 33m stop
15:05 — 16:22 F92083 Frontier Airlines
Phoenix — San Diego
7h 1m
including layover
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from$63
10:09 — 15:08
10:09 — 11:51 UA1572 United Airlines
Denver — San Francisco
1h 39m stop
13:30 — 15:08 UA1106 United Airlines
San Francisco — San Diego
5h 59m
including layover
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from$94
10:15 — 13:40
10:15 — 11:45 UA405 United Airlines
Denver — Los Angeles
56m stop
12:41 — 13:40 UA5216 United Airlines
Los Angeles — San Diego
4h 25m
including layover
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from$94
11:34 — 10:24
+1 day
09:40 — 11:26 F94721 Frontier Airlines
Denver — Salt Lake City
20h 20m stop
09:29 — 10:26 F91901 Frontier Airlines
Salt Lake City — San Diego
23h 50m
including layover
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from$68
12:05 — 18:37
09:44 — 10:51 F91993 Frontier Airlines
Denver — Las Vegas
4h 6m stop
17:01 — 18:26 F91465 Frontier Airlines
Las Vegas — San Diego
7h 32m
including layover
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from$72
12:05 — 11:37
+1 day
09:44 — 10:51 F91993 Frontier Airlines
Denver — Las Vegas
21h 2m stop
10:35 — 11:56 F91469 Frontier Airlines
Las Vegas — San Diego
24h 32m
including layover
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from$72
13:30 — 18:23
13:26 — 15:10 UA1812 United Airlines
Denver — San Francisco
1h 33m stop
16:45 — 18:25 UA1434 United Airlines
San Francisco — San Diego
5h 53m
including layover
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from$93
14:37 — 18:37
13:20 — 14:31 F92349 Frontier Airlines
Denver — Las Vegas
1h 28m stop
17:52 — 19:10 F91465 Frontier Airlines
Las Vegas — San Diego
5h
including layover
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from$63
14:37 — 11:37
+1 day
13:33 — 14:39 F92349 Frontier Airlines
Denver — Las Vegas
18h 24m stop
10:35 — 11:56 F91469 Frontier Airlines
Las Vegas — San Diego
22h
including layover
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from$72
16:00 — 22:28
16:00 — 17:43 UA2633 United Airlines
Denver — San Francisco
3h 10m stop
21:08 — 22:42 UA1074 United Airlines
San Francisco — San Diego
7h 28m
including layover
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from$93
17:46 — 17:57
+1 day
17:46 — 18:55 F94967 Frontier Airlines
Denver — Las Vegas
21h 37m stop
16:32 — 17:57 F91325 Frontier Airlines
Las Vegas — San Diego
25h 11m
including layover
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from$79
17:51 — 11:55
+1 day
17:46 — 18:55 F94967 Frontier Airlines
Denver — Las Vegas
15h 39m stop
10:35 — 11:56 F91469 Frontier Airlines
Las Vegas — San Diego
19h 4m
including layover
Find flight
from$70
18:10 — 18:19
+1 day
17:41 — 18:50 F94967 Frontier Airlines
Denver — Las Vegas
21h 41m stop
17:01 — 18:26 F91465 Frontier Airlines
Las Vegas — San Diego
25h 9m
including layover
Find flight
from$64
20:22 — 09:13
+1 day
20:31 — 00:10 F93172 Frontier Airlines
Denver — Chicago
6h 58m stop
13:39 — 15:59 F91855 Frontier Airlines
Chicago — San Diego
13h 51m
including layover
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from$68
20:31 — 15:59
+1 day
20:21 — 23:59 F93174 Frontier Airlines
Denver — Chicago
13h 29m stop
13:56 — 16:08 F91855 Frontier Airlines
Chicago — San Diego
20h 28m
including layover
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from$68
21:36 — 12:15
+1 day
21:36 — 23:34 F91093 Frontier Airlines
Denver — San Francisco
11h 3m stop
10:37 — 12:15 F94306 Frontier Airlines
San Francisco — San Diego
15h 39m
including layover
Find flight
from$75
*Departure and arrival times - local. Updated on May 24, 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

The cheapest months to travel to San Diego are february (from 37 $), may (from 37 $), january (from 51 $).

The most expensive months are november (from 117 $), december (from 83 $), july (from 81 $).

What is the lowest airfare Denver to San Diego?

The cheapest plane ticket found by our users is $27. This airfare is for economy class on one-way F92421 flight by Frontier Airlines for May 31, 2025 which leaves Denver International in Denver at 22:29 am and arrives at San Diego San Diego at 23:59.

Economy class
$27
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Business class
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First class
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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 Frontier Airlines - 40 departures per week at the price of from $ 27 . And the most expensive tickets are offered by United Airlines airline - from $ 609.

Direct flights

There are 19 nonstop flights on the route. The fastest direct flight is F92711 by Frontier Airlines takes 2h 21m and the cheapest is F92421 by Frontier Airlines for $27.

See more direct flights

Connecting Flights

There are 287 flights with layovers on the route. The fastest connecting flight is F93861 by Frontier Airlines takes 4h 24m and the cheapest is F92421 by Frontier Airlines for $63.

  • from $63
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  • from $93
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  • AS - Alaska Airlines
    from $87
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  • SY - Sun Country Airlines
    from $120
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  • HA - Hawaiian Airlines
    from $80
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  • MX - Mexicana
    from $408
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  • G4 - Allegiant Air
    from $126
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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 $27
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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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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.

    To find a plane ticket, please select dates.

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