Cheap Flights from San Diego, CA to Denver, CO from $112

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On Cheapflightsplus.com you will find 4 direct and 43 connecting flights from San Diego to Denver. You can compare airfare deals from 5 airlines and multiple travel sites from $112, book and save on cheap plane tickets and last minute offers. Also check out SAN-DEN flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip San Diego to Denver 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: $112 (one-way), $192 (round-trip).

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Best Flights from San Diego to Denver Today

Take a look at the list of non stop flights and flights with layovers from San Diego to Denver with the lowest price of $112. The fastest direct flight takes 2h 28m and the fastest connecting – 4h 53m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $112 Find flight	06:45 San Diego San Diego	10:13 Denver Denver International	2h 28m	United Airlines	UA2270
from $112 Find flight	19:01 San Diego San Diego	22:29 Denver Denver International	2h 28m	United Airlines	UA519
from $123 Find flight	12:45 San Diego San Diego	16:13 Denver Denver International	2h 28m	United Airlines	UA1483
from $145 Find flight	08:45 San Diego San Diego	12:13 Denver Denver International	2h 28m	United Airlines	UA347
from $122 Find flight	21:30 San Diego San Diego	23:23+1 день Denver Denver International	24h 53m layover 21h 21m - Phoenix	Frontier Airlines	F91572 F92142
from $150 Find flight	08:31 San Diego San Diego	08:20+1 день Denver Denver International	22h 49m layover 17h 23m - Austin	Frontier Airlines	F91878 F91815
from $165 Find flight	10:54 San Diego San Diego	18:08 Denver Denver International	6h 14m layover 2h 33m - Los Angeles	United Airlines	UA5249 UA1294
from $165 Find flight	10:43 San Diego San Diego	18:13 Denver Denver International	6h 30m layover 2h 10m - San Francisco	United Airlines	UA2855 UA1527
from $165 Find flight	09:45 San Diego San Diego	18:13 Denver Denver International	7h 28m layover 3h 7m - San Francisco	United Airlines	UA305 UA1527
from $165 Find flight	10:43 San Diego San Diego	19:33 Denver Denver International	7h 50m layover 3h 30m - San Francisco	United Airlines	UA2855 UA566
from $174 Find flight	13:12 San Diego San Diego	10:15+1 день Denver Denver International	20h 3m layover 16h 36m - Phoenix	Frontier Airlines	F94578 F91376
from $176 Find flight	15:35 San Diego San Diego	23:59 Denver Denver International	7h 24m layover 1h 46m - Seattle	Hawaiian Airlines	HA6534 HA6652
from $176 Find flight	13:45 San Diego San Diego	23:59 Denver Denver International	9h 14m layover 3h 32m - Seattle	Hawaiian Airlines	HA6532 HA6652
from $179 Find flight	13:50 San Diego San Diego	22:39 Denver Denver International	7h 49m layover 3h 35m - San Francisco	United Airlines	UA1763 UA1230
from $180 Find flight	17:50 San Diego San Diego	00:48+1 день Denver Denver International	5h 58m layover 1h 47m - San Francisco	United Airlines	UA1871 UA1317
from $180 Find flight	16:00 San Diego San Diego	00:48+1 день Denver Denver International	7h 48m layover 3h 37m - San Francisco	United Airlines	UA2117 UA1317

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*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on August 06, 2025

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

Full flight schedule will help you in detecting at what time planes fly from San Diego to Denver. 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
06:45 — 10:13	06:45 — 10:13 UA2270 United Airlines San Diego — Denver	2h 28m	Find flight from$112
08:45 — 12:13	08:45 — 12:13 UA347 United Airlines San Diego — Denver	2h 28m	Find flight from$145
12:45 — 16:13	12:45 — 16:13 UA1483 United Airlines San Diego — Denver	2h 28m	Find flight from$123
19:01 — 22:29	19:01 — 22:29 UA519 United Airlines San Diego — Denver	2h 28m	Find flight from$112
08:31 — 08:20 +1 day	08:31 — 13:37 F91878 Frontier Airlines San Diego — Austin 17h 23m stop 07:00 — 08:20 F91815 Frontier Airlines Austin — Denver	22h 49m including layover	Find flight from$150
09:45 — 18:13	09:45 — 11:23 UA305 United Airlines San Diego — San Francisco 3h 7m stop 14:30 — 18:13 UA1527 United Airlines San Francisco — Denver	7h 28m including layover	Find flight from$165
09:50 — 18:05	09:50 — 11:18 AS6626 Alaska Airlines San Diego — Phoenix 4h stop 15:18 — 18:05 AS6197 Alaska Airlines Phoenix — Denver	7h 15m including layover	Find flight from$201
10:43 — 18:13	10:43 — 12:20 UA2855 United Airlines San Diego — San Francisco 2h 10m stop 14:30 — 18:13 UA1527 United Airlines San Francisco — Denver	6h 30m including layover	Find flight from$165
10:43 — 19:33	10:43 — 12:20 UA2855 United Airlines San Diego — San Francisco 3h 30m stop 15:50 — 19:33 UA566 United Airlines San Francisco — Denver	7h 50m including layover	Find flight from$165
11:58 — 22:29	11:58 — 17:22 UA2237 United Airlines San Diego — Houston 3h 13m stop 20:35 — 22:29 UA2215 United Airlines Houston — Denver	9h 31m including layover	Find flight from$422
13:12 — 10:15 +1 day	13:12 — 14:42 F94578 Frontier Airlines San Diego — Phoenix 16h 36m stop 07:18 — 10:15 F91376 Frontier Airlines Phoenix — Denver	20h 3m including layover	Find flight from$174
13:45 — 23:59	13:45 — 16:45 HA6532 Hawaiian Airlines San Diego — Seattle 3h 32m stop 20:17 — 23:59 HA6652 Hawaiian Airlines Seattle — Denver	9h 14m including layover	Find flight from$176
15:35 — 23:59	15:35 — 18:31 HA6534 Hawaiian Airlines San Diego — Seattle 1h 46m stop 20:17 — 23:59 HA6652 Hawaiian Airlines Seattle — Denver	7h 24m including layover	Find flight from$176
15:35 — 23:59	15:35 — 18:31 AS1135 Alaska Airlines San Diego — Seattle 1h 46m stop 20:17 — 23:59 AS642 Alaska Airlines Seattle — Denver	7h 24m including layover	Find flight from$185
16:00 — 00:48 +1 day	16:00 — 17:38 UA2117 United Airlines San Diego — San Francisco 3h 37m stop 21:15 — 00:48 UA1317 United Airlines San Francisco — Denver	7h 48m including layover	Find flight from$180
17:50 — 00:48 +1 day	17:50 — 19:28 UA1871 United Airlines San Diego — San Francisco 1h 47m stop 21:15 — 00:48 UA1317 United Airlines San Francisco — Denver	5h 58m including layover	Find flight from$180
20:45 — 11:53 +1 day	20:45 — 23:44 AS1110 Alaska Airlines San Diego — Seattle 8h 15m stop 08:06 — 11:53 AS682 Alaska Airlines Seattle — Denver	14h 8m including layover	Find flight from$270
20:45 — 11:53 +1 day	20:45 — 23:44 HA6533 Hawaiian Airlines San Diego — Seattle 8h 15m stop 08:06 — 11:53 HA6653 Hawaiian Airlines Seattle — Denver	14h 8m including layover	Find flight from$369
21:30 — 23:23 +1 day	21:30 — 23:00 F91572 Frontier Airlines San Diego — Phoenix 21h 21m stop 20:21 — 23:23 F92142 Frontier Airlines Phoenix — Denver	24h 53m including layover	Find flight from$122
21:30 — 10:15 +1 day	21:30 — 23:00 F91572 Frontier Airlines San Diego — Phoenix 8h 18m stop 07:18 — 10:15 F91376 Frontier Airlines Phoenix — Denver	11h 45m including layover	Find flight from$174
22:20 — 08:58 +1 day	22:20 — 04:30 UA2633 United Airlines San Diego — Chicago 2h 40m stop 07:10 — 08:58 UA791 United Airlines Chicago — Denver	9h 38m including layover	Find flight from$743
06:15 — 19:07	06:15 — 07:37 NK1153 Spirit Airlines San Diego — Las Vegas 3h 6m stop 14:00 — 19:09 SY104 Sun Country Airlines Las Vegas — Minneapolis 2h stop 16:54 — 18:01 SY657 Sun Country Airlines Minneapolis — Denver	11h 52m including layover	Find flight from$237
12:41 — 23:09	12:41 — 14:09 AS3336 Alaska Airlines San Diego — Las Vegas 2h 58m stop 17:07 — 18:29 AS2182 Alaska Airlines Las Vegas — Los Angeles 1h 16m stop 19:45 — 23:09 AS6530 Alaska Airlines Los Angeles — Denver	9h 28m including layover	Find flight from$545
14:15 — 23:59	14:15 — 16:49 AS1297 Alaska Airlines San Diego — Portland 46m stop 17:35 — 18:30 AS2241 Alaska Airlines Portland — Seattle 1h 47m stop 20:17 — 23:59 AS642 Alaska Airlines Seattle — Denver	8h 44m including layover	Find flight from$658
17:13 — 20:56 +1 day	17:13 — 18:34 NK1157 Spirit Airlines San Diego — Las Vegas 16h 22m stop 10:56 — 16:07 SY104 Sun Country Airlines Las Vegas — Minneapolis 3h 38m stop 19:45 — 20:56 SY1609 Sun Country Airlines Minneapolis — Denver	26h 43m including layover	Find flight from$484
19:27 — 08:55 +1 day	19:27 — 21:05 UA505 United Airlines San Diego — San Francisco 2h 54m stop 23:59 — 05:45 UA505 United Airlines San Francisco — Houston 1h 35m stop 07:20 — 08:55 UA2433 United Airlines Houston — Denver	12h 28m including layover	Find flight from$427

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

*Departure and arrival times - local. Updated on August 6, 2025

Flight Information

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

Distance between San Diego and Denver is 1371 miles. Time difference between the cities is 1h. Airplanes depart 06:15 to 22:20 from 11 San Diego airport and arrive 06:15 to 22:20 to 2 Denver airports. Average flight time is 2h 28m.

The fastest flight 2h 28m
Average flight time 2h 28m
The earliest flight 06:15
The latest flight 22:20
Distance 852 ml

The cheapest months to travel to Denver are september (from 112 $), october (from 115 $), august (from 118 $).

The most expensive months are may (from 174 $), february (from 174 $), june (from 157 $).

What is the lowest airfare San Diego to Denver?

The cheapest plane ticket found by our users is $112. This airfare is for economy class on one-way UA2270 flight by United Airlines for September 27, 2025 which leaves San Diego in San Diego at 06:45 am and arrives at Denver Denver International at 10:13.

Economy class

$112

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Business class

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First class

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Popular Airlines on the Route

The flight San Diego — Denver is served by 5 regular airlines and 2 low-cost airlines. Most of the flights on this route are operated by Frontier Airlines - 4 departures per week at the price of from $ 122 . And the most expensive tickets are offered by United Airlines airline - from $ 856.

Direct flights

There are 4 nonstop flights on the route. The fastest direct flight is UA2270 by United Airlines takes 2h 28m and the cheapest is UA2270 by United Airlines for $112.

UA - United Airlines

from $112

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Connecting Flights

There are 43 flights with layovers on the route. The fastest connecting flight is UA2855 by United Airlines takes 4h 53m and the cheapest is UA2270 by United Airlines for $122.

F9 - Frontier Airlines

from $122

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UA - United Airlines

from $165

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AS - Alaska Airlines

from $185

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HA - Hawaiian Airlines

from $176

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NK - Spirit Airlines

from $237

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Airports

You can fly from San Diego to Denver from 11 airports (San Diego, San Diego Regional, Gillespie Field, Golden Triangle Reg., El Cajon, Lowndes County, Miramar NAS, Montgomery Field, North Island NAS, Brown Field Municipal, AFB).

San Diego airports

San Diego-SAN

from $112
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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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Denver airports

Denver International-DEN

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Arapahoe Co-APA

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Airplanes

There are flights to Denver from San Diego by 5 airlines that use 0 aircraft brands. They range from huge modern airplanes to small-sized.

Top Domestic Destinations from San Diego

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

San Diego — Las Vegas

from $67

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San Diego — Seattle

from $56

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San Diego — New York

from $68

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San Diego — San Francisco

from $54

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San Diego — Denver

from $64

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San Diego — Phoenix

from $71

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San Diego — Chicago

from $57

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San Diego — Sacramento

from $76

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San Diego — Dallas

from $70

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San Diego — Boston

from $76

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Top International Destinations from San Diego

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.

San Diego — San Jose

from $65

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San Diego — London

from $66

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San Diego — Vancouver

from $79

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San Diego — Tokyo

from $72

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San Diego — Cancun

from $72

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San Diego — Paris

from $79

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San Diego — Toronto

from $68

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San Diego — Rome

from $54

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San Diego — Madrid

from $65

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San Diego — Calgary

from $60

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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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