Cheap Flights from Denver, CO to San Diego, CA from $56

One way Round trip

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On Cheapflightsplus.com you will find 6 direct and 23 connecting flights from Denver to San Diego. You can compare airfare deals from 4 airlines and multiple travel sites from $56, 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: $56 (one-way), $96 (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 $56. The fastest direct flight takes 2h 23m and the fastest connecting – 4h 35m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $56 Find flight	19:18 Denver Denver International	20:46 San Diego San Diego	2h 28m	United Airlines	UA540
from $70 Find flight	05:01 Denver Denver International	06:24 San Diego San Diego	2h 23m	Frontier Airlines	F92817
from $70 Find flight	11:57 Denver Denver International	13:21 San Diego San Diego	2h 24m	Frontier Airlines	F94927
from $70 Find flight	19:16 Denver Denver International	20:40 San Diego San Diego	2h 24m	Frontier Airlines	F94989
from $138 Find flight	21:05 Denver Denver International	22:40 San Diego San Diego	2h 35m	United Airlines	UA486
from $196 Find flight	11:34 Denver Denver International	13:11 San Diego San Diego	2h 37m	United Airlines	UA366
from $80 Find flight	07:16 Denver Denver International	14:07 San Diego San Diego	7h 51m layover 2h 48m - Dallas	Frontier Airlines	F94464 F91769
from $130 Find flight	16:06 Denver Denver International	19:41 San Diego San Diego	4h 35m layover 1h 8m - Las Vegas	Frontier Airlines	F9777 F91465
from $138 Find flight	07:00 Denver Denver International	12:46 San Diego San Diego	6h 46m layover 0h 41m - Seattle	Alaska Airlines	AS643 AS1108
from $169 Find flight	16:15 Denver Denver International	19:53 San Diego San Diego	4h 38m layover 1h 0m - Los Angeles	United Airlines	UA564 UA5415
from $175 Find flight	19:45 Denver Denver International	23:58 San Diego San Diego	5h 13m layover 1h 33m - Los Angeles	United Airlines	UA1368 UA5612
from $175 Find flight	17:50 Denver Denver International	23:58 San Diego San Diego	7h 8m layover 3h 27m - Los Angeles	United Airlines	UA2240 UA5612
from $201 Find flight	23:27 Denver Denver International	08:15+1 день San Diego San Diego	9h 48m layover 6h 37m - Phoenix	Frontier Airlines	F94753 F92083
from $207 Find flight	13:26 Denver Denver International	19:53 San Diego San Diego	7h 27m layover 3h 50m - Los Angeles	United Airlines	UA330 UA5415
from $219 Find flight	08:54 Denver Denver International	13:09 San Diego San Diego	5h 15m layover 2h 1m - Phoenix	Frontier Airlines	F91819 F93167
from $249 Find flight	12:38 Denver Denver International	19:10 San Diego San Diego	7h 32m layover 1h 39m - Seattle	Alaska Airlines	AS682 AS1142

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*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on February 08, 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
05:01 — 06:24	05:01 — 06:24 F92817 Frontier Airlines Denver — San Diego	2h 23m	Find flight from$70
11:34 — 13:11	11:34 — 13:11 UA366 United Airlines Denver — San Diego	2h 37m	Find flight from$196
11:57 — 13:21	11:57 — 13:21 F94927 Frontier Airlines Denver — San Diego	2h 24m	Find flight from$70
19:16 — 20:40	19:16 — 20:40 F94989 Frontier Airlines Denver — San Diego	2h 24m	Find flight from$70
19:18 — 20:46	19:18 — 20:46 UA540 United Airlines Denver — San Diego	2h 28m	Find flight from$56
21:05 — 22:40	21:05 — 22:40 UA486 United Airlines Denver — San Diego	2h 35m	Find flight from$138
06:00 — 12:34	06:00 — 07:53 UA573 United Airlines Denver — San Francisco 3h 4m stop 10:57 — 12:34 UA1998 United Airlines San Francisco — San Diego	7h 34m including layover	Find flight from$265
07:00 — 12:46	06:00 — 08:06 AS643 Alaska Airlines Denver — Seattle 41m stop 09:08 — 11:57 AS1108 Alaska Airlines Seattle — San Diego	6h 46m including layover	Find flight from$138
07:16 — 14:07	08:11 — 11:15 F94464 Frontier Airlines Denver — Dallas 2h 48m stop 13:57 — 15:16 F91769 Frontier Airlines Dallas — San Diego	7h 51m including layover	Find flight from$80
08:54 — 13:09	09:43 — 11:48 F91819 Frontier Airlines Denver — Phoenix 2h 1m stop 13:45 — 14:05 F93167 Frontier Airlines Phoenix — San Diego	5h 15m including layover	Find flight from$219
09:00 — 10:05 +1 day	06:00 — 07:09 F92015 Frontier Airlines Denver — Las Vegas 22h 49m stop 07:00 — 08:14 F91469 Frontier Airlines Las Vegas — San Diego	26h 5m including layover	Find flight from$264
12:38 — 19:10	12:04 — 14:17 AS682 Alaska Airlines Denver — Seattle 1h 39m stop 16:30 — 19:12 AS1142 Alaska Airlines Seattle — San Diego	7h 32m including layover	Find flight from$249
12:38 — 21:14	12:04 — 14:17 AS682 Alaska Airlines Denver — Seattle 3h 42m stop 18:05 — 20:48 AS1098 Alaska Airlines Seattle — San Diego	9h 36m including layover	Find flight from$249
13:26 — 19:53	13:26 — 15:05 UA330 United Airlines Denver — Los Angeles 3h 50m stop 18:55 — 19:53 UA5415 United Airlines Los Angeles — San Diego	7h 27m including layover	Find flight from$207
16:06 — 19:41	22:49 — 00:02 F9777 Frontier Airlines Denver — Las Vegas 1h 8m stop 17:52 — 19:10 F91465 Frontier Airlines Las Vegas — San Diego	4h 35m including layover	Find flight from$130
16:06 — 10:05 +1 day	16:06 — 17:20 F9777 Frontier Airlines Denver — Las Vegas 15h 28m stop 08:48 — 10:05 F91469 Frontier Airlines Las Vegas — San Diego	18h 59m including layover	Find flight from$135
17:50 — 23:58	17:40 — 19:14 UA2240 United Airlines Denver — Los Angeles 3h 27m stop 22:55 — 23:58 UA5612 United Airlines Los Angeles — San Diego	7h 8m including layover	Find flight from$175
17:50 — 00:14 +1 day	17:50 — 19:46 UA1007 United Airlines Denver — San Francisco 2h 49m stop 22:35 — 00:14 UA548 United Airlines San Francisco — San Diego	7h 24m including layover	Find flight from$265
23:27 — 08:15 +1 day	22:59 — 00:56 F94753 Frontier Airlines Denver — Phoenix 6h 37m stop 08:30 — 08:48 F92083 Frontier Airlines Phoenix — San Diego	9h 48m including layover	Find flight from$201
13:22 — 22:59 +1 day	13:22 — 18:20 AM659 Aeromexico Denver — Mexico City 1h 40m stop 20:00 — 22:26 AM648 Aeromexico Mexico City — Los Angeles 23h 33m stop 21:59 — 22:59 AM4426 Aeromexico Los Angeles — San Diego	34h 37m including layover	Find flight from$737

Departure	Arrival	Flight Details	Flight Time	Price
		stop stop	including layover	Find flight from$

*Departure and arrival times - local. Updated on February 8, 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 05:01 to 23:27 from 2 Denver airports and arrive 05:01 to 23:27 to 11 San Diego airports. Average flight time is 2h 26m.

The fastest flight 2h 23m
Average flight time 2h 26m
The earliest flight 05:01
The latest flight 23:27
Distance 852 ml

The cheapest months to travel to San Diego are december (from 31 $), november (from 48 $), february (from 56 $).

The most expensive months are january (from 126 $), february (from 56 $), november (from 48 $).

What is the lowest airfare Denver to San Diego?

The cheapest plane ticket found by our users is $56. This airfare is for economy class on one-way UA540 flight by United Airlines for February 12, 2025 which leaves Denver International in Denver at 19:18 am and arrives at San Diego San Diego at 20:46.

Economy class

$56

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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 4 regular airlines and 1 low-cost airline. Most of the flights on this route are operated by Alaska Airlines - 9 departures per week at the price of from $ 138 . And the most expensive tickets are offered by Aeromexico airline - from $ 737.

Direct flights

There are 6 nonstop flights on the route. The fastest direct flight is F92817 by Frontier Airlines takes 2h 23m and the cheapest is UA540 by United Airlines for $56.

F9 - Frontier Airlines

from $70

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UA - United Airlines

from $56

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Connecting Flights

There are 23 flights with layovers on the route. The fastest connecting flight is F9777 by Frontier Airlines takes 4h 35m and the cheapest is UA540 by United Airlines for $80.

AS - Alaska Airlines

from $138

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F9 - Frontier Airlines

from $80

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UA - United Airlines

from $169

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AM - Aeromexico

from $737

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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 $56
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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 4 airlines that use 1 aircraft brands. They range from huge modern airplanes to small-sized.

Boeing 737-900

from $56

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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 — Chicago

from $66

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Denver — Phoenix

from $59

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Denver — Indianapolis

from $79

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Denver — Las Vegas

from $70

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Denver — Boston

from $68

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Denver — Tampa

from $57

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Denver — Omaha

from $64

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Denver — Houston

from $67

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Denver — Boise

from $77

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Denver — San Diego

from $78

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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 — London

from $63

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Denver — Paris

from $75

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Denver — Vancouver

from $60

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Denver — Cancun

from $66

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Denver — Birmingham

from $71

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Denver — Zurich

from $64

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Denver — Puerto Vallarta

from $56

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Denver — Athens

from $54

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Denver — Manchester

from $79

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Denver — Frankfurt

from $70

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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.
To find a plane ticket, please select dates.