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

One way Round trip

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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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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 $27. The fastest direct flight takes 2h 21m and the fastest connecting – 4h 24m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $27 Find flight	22:29 Denver Denver International	23:59 San Diego San Diego	2h 30m	Frontier Airlines	F92421
from $44 Find flight	22:29 Denver Denver International	23:50 San Diego San Diego	2h 21m	Frontier Airlines	F92711
from $44 Find flight	09:44 Denver Denver International	11:10 San Diego San Diego	2h 26m	Frontier Airlines	F92817
from $44 Find flight	18:10 Denver Denver International	19:39 San Diego San Diego	2h 29m	Frontier Airlines	F94989
from $60 Find flight	15:00 Denver Denver International	16:23 San Diego San Diego	2h 23m	Hawaiian Airlines	HA4809
from $60 Find flight	07:01 Denver Denver International	08:25 San Diego San Diego	2h 24m	Hawaiian Airlines	HA4808
from $60 Find flight	19:50 Denver Denver International	21:19 San Diego San Diego	2h 29m	Hawaiian Airlines	HA4813
from $63 Find flight	15:00 Denver Denver International	16:23 San Diego San Diego	2h 23m	Alaska Airlines	AS1129
from $63 Find flight	07:01 Denver Denver International	08:25 San Diego San Diego	2h 24m	Alaska Airlines	AS1127
from $63 Find flight	19:50 Denver Denver International	21:19 San Diego San Diego	2h 29m	Alaska Airlines	AS3025
from $82 Find flight	07:45 Denver Denver International	09:09 San Diego San Diego	2h 24m	United Airlines	UA2309
from $99 Find flight	11:28 Denver Denver International	12:52 San Diego San Diego	2h 24m	United Airlines	UA583
from $114 Find flight	11:28 Denver Denver International	12:52 San Diego San Diego	2h 24m	United Airlines	UA2412
from $63 Find flight	07:00 Denver Denver International	10:24 San Diego San Diego	4h 24m layover 0h 57m - Salt Lake City	Frontier Airlines	F93861 F91901
from $63 Find flight	14:37 Denver Denver International	18:37 San Diego San Diego	5h 0m layover 1h 28m - Las Vegas	Frontier Airlines	F92349 F91465
from $63 Find flight	09:10 Denver Denver International	15:11 San Diego San Diego	7h 1m layover 3h 33m - Phoenix	Frontier Airlines	F91375 F92083

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*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on May 24, 2025

Flight Schedule Denver (Colorado) to San Diego (California)

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	Flight Details	Flight Duration	Price
07:01 — 08:25	07:01 — 08:25 HA4808 Hawaiian Airlines Denver — San Diego	2h 24m	Find flight from$60
07:01 — 08:25	07:01 — 08:25 AS1127 Alaska Airlines Denver — San Diego	2h 24m	Find flight from$63
07:45 — 09:09	07:45 — 09:09 UA2309 United Airlines Denver — San Diego	2h 24m	Find flight from$82
09:44 — 11:10	09:44 — 11:10 F92817 Frontier Airlines Denver — San Diego	2h 26m	Find flight from$44
11:22 — 12:46	11:22 — 12:46 UA2381 United Airlines Denver — San Diego	2h 24m	Find flight from$122
11:28 — 12:52	11:28 — 12:52 UA583 United Airlines Denver — San Diego	2h 24m	Find flight from$99
11:28 — 12:52	11:28 — 12:52 UA2412 United Airlines Denver — San Diego	2h 24m	Find flight from$114
11:33 — 12:57	11:33 — 12:57 UA1940 United Airlines Denver — San Diego	2h 24m	Find flight from$91
13:38 — 14:59	13:38 — 14:59 UA1302 United Airlines Denver — San Diego	2h 21m	Find flight from$91
15:00 — 16:23	15:00 — 16:23 HA4809 Hawaiian Airlines Denver — San Diego	2h 23m	Find flight from$60
15:00 — 16:23	15:00 — 16:23 AS1129 Alaska Airlines Denver — San Diego	2h 23m	Find flight from$63
16:03 — 17:24	16:03 — 17:24 UA1281 United Airlines Denver — San Diego	2h 21m	Find flight from$90
18:10 — 19:39	18:10 — 19:39 F94989 Frontier Airlines Denver — San Diego	2h 29m	Find flight from$44
19:14 — 20:38	19:14 — 20:38 UA540 United Airlines Denver — San Diego	2h 24m	Find flight from$82
19:50 — 21:19	19:50 — 21:19 HA4813 Hawaiian Airlines Denver — San Diego	2h 29m	Find flight from$60
19:50 — 21:19	19:50 — 21:19 AS3025 Alaska Airlines Denver — San Diego	2h 29m	Find flight from$63
20:50 — 22:14	20:50 — 22:14 UA1835 United Airlines Denver — San Diego	2h 24m	Find flight from$82
22:29 — 23:59	22:29 — 23:59 F92421 Frontier Airlines Denver — San Diego	2h 30m	Find flight from$27
22:29 — 23:50	22:29 — 23:50 F92711 Frontier Airlines Denver — San Diego	2h 21m	Find flight 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	Find flight 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	Find flight 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	Find flight 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	Find flight 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	Find flight 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	Find flight 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	Find flight 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	Find flight 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	Find flight 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	Find flight 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	Find flight 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	Find flight 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	Find flight 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	Find flight 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	Find flight 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	Find flight 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	Find flight 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	Find flight 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	Arrival	Flight Details	Flight Time	Price
		stop stop	including layover	Find flight from$

*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.

F9 - Frontier Airlines

from $27

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UA - United Airlines

from $82

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AS - Alaska Airlines

from $63

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HA - Hawaiian Airlines

from $60

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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.

F9 - Frontier Airlines

from $63

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UA - United Airlines

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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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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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 $82

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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.

Denver — Las Vegas

from $70

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Denver — Phoenix

from $59

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Denver — Boston

from $68

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Denver — Seattle

from $75

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Denver — Orlando

from $74

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Denver — Chicago

from $66

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Denver — Miami

from $68

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Denver — Tampa

from $57

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Denver — Los Angeles

from $17

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Denver — Houston

from $67

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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.

Denver — Cancun

from $66

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Denver — London

from $63

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Denver — Tokyo

from $75

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Denver — Vancouver

from $60

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Denver — Toronto

from $60

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Denver — Paris

from $75

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Denver — Mexico City

from $66

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Denver — Calgary

from $68

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Denver — Dublin

from $69

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Denver — San Jose

from $72

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How to book a plane 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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