Cheap Flights from San Diego, CA to Denver, CO from $33

Return flight: Denver – San Diego

On Cheapflightsplus.com you will find 14 direct and 186 connecting flights from San Diego to Denver. You can compare airfare deals from 7 airlines and multiple travel sites from $33, 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: $33 (one-way), $57 (round-trip).
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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 Arrival Flight Details Flight Duration Price
06:25 — 09:56
06:25 — 09:56 F92712 Frontier Airlines
San Diego — Denver
2h 31m
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from$33
06:25 — 09:56
06:25 — 09:56 F92818 Frontier Airlines
San Diego — Denver
2h 31m
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from$47
07:00 — 10:28
07:00 — 10:28 UA2270 United Airlines
San Diego — Denver
2h 28m
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from$113
07:00 — 10:28
07:00 — 10:28 UA1365 United Airlines
San Diego — Denver
2h 28m
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from$129
07:05 — 10:33
07:05 — 10:33 UA2432 United Airlines
San Diego — Denver
2h 28m
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from$161
08:50 — 12:18
08:50 — 12:18 UA2476 United Airlines
San Diego — Denver
2h 28m
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from$129
11:10 — 14:36
11:10 — 14:36 UA264 United Airlines
San Diego — Denver
2h 26m
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from$153
11:58 — 15:24
11:58 — 15:24 F94928 Frontier Airlines
San Diego — Denver
2h 26m
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from$35
13:00 — 16:26
13:00 — 16:26 UA1374 United Airlines
San Diego — Denver
2h 26m
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from$153
14:10 — 17:38
14:10 — 17:38 UA312 United Airlines
San Diego — Denver
2h 28m
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from$186
14:20 — 17:48
14:20 — 17:48 UA280 United Airlines
San Diego — Denver
2h 28m
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from$175
15:38 — 19:04
15:38 — 19:04 F94990 Frontier Airlines
San Diego — Denver
2h 26m
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from$35
16:09 — 19:35
16:09 — 19:35 UA682 United Airlines
San Diego — Denver
2h 26m
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from$131
18:50 — 22:15
18:50 — 22:15 UA1924 United Airlines
San Diego — Denver
2h 25m
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from$155
08:42 — 14:55
11:06 — 13:29 F91572 Frontier Airlines
San Diego — Phoenix
2h 3m stop
17:14 — 19:05 F92106 Frontier Airlines
Phoenix — Denver
5h 13m
including layover
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from$59
09:35 — 22:36
09:35 — 12:44 AS1259 Alaska Airlines
San Diego — Seattle
6h 15m stop
19:38 — 23:15 AS321 Alaska Airlines
Seattle — Denver
12h 1m
including layover
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from$184
10:35 — 18:40
13:31 — 14:57 F91326 Frontier Airlines
San Diego — Las Vegas
3h 35m stop
00:59 — 03:59 F92430 Frontier Airlines
Las Vegas — Denver
7h 5m
including layover
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from$56
10:35 — 17:07
13:31 — 14:57 F91326 Frontier Airlines
San Diego — Las Vegas
2h 5m stop
17:46 — 20:51 F93844 Frontier Airlines
Las Vegas — Denver
5h 32m
including layover
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from$136
11:06 — 16:20
11:06 — 13:29 F91572 Frontier Airlines
San Diego — Phoenix
55m stop
14:24 — 16:20 F92052 Frontier Airlines
Phoenix — Denver
4h 14m
including layover
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from$59
12:29 — 18:53
12:29 — 14:51 AS4295 Alaska Airlines
San Diego — Phoenix
2h 15m stop
17:06 — 18:53 AS4270 Alaska Airlines
Phoenix — Denver
5h 24m
including layover
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from$192
13:41 — 19:21
13:41 — 16:09 F92084 Frontier Airlines
San Diego — Phoenix
1h 14m stop
17:23 — 19:21 F92106 Frontier Airlines
Phoenix — Denver
4h 40m
including layover
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from$56
13:52 — 19:15
13:13 — 15:35 F94578 Frontier Airlines
San Diego — Phoenix
1h 7m stop
17:26 — 19:17 F94766 Frontier Airlines
Phoenix — Denver
4h 23m
including layover
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from$64
14:57 — 00:34
+1 day
14:57 — 20:01 F92928 Frontier Airlines
San Diego — Dallas
3h 9m stop
23:10 — 00:34 F94463 Frontier Airlines
Dallas — Denver
8h 37m
including layover
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from$77
15:38 — 09:42
+1 day
11:25 — 13:06 F93381 Frontier Airlines
San Diego — San Francisco
12h 41m stop
06:00 — 09:42 F91230 Frontier Airlines
San Francisco — Denver
17h 4m
including layover
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from$139
17:27 — 09:08
+1 day
17:27 — 23:04 SY408 Sun Country Airlines
San Diego — Minneapolis
8h 43m stop
07:47 — 09:08 SY651 Sun Country Airlines
Minneapolis — Denver
14h 41m
including layover
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from$170
17:30 — 11:50
+1 day
17:30 — 23:05 SY408 Sun Country Airlines
San Diego — Minneapolis
11h 29m stop
10:34 — 11:50 SY653 Sun Country Airlines
Minneapolis — Denver
17h 20m
including layover
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from$125
18:06 — 23:56
18:06 — 20:31 F92888 Frontier Airlines
San Diego — Phoenix
1h 28m stop
21:59 — 23:56 F92142 Frontier Airlines
Phoenix — Denver
4h 50m
including layover
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from$56
18:19 — 23:44
18:19 — 20:39 F93168 Frontier Airlines
San Diego — Phoenix
1h 11m stop
21:50 — 23:44 F92142 Frontier Airlines
Phoenix — Denver
4h 25m
including layover
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from$64
19:38 — 23:48
+1 day
19:38 — 21:04 F91466 Frontier Airlines
San Diego — Las Vegas
23h 40m stop
20:44 — 23:48 F94612 Frontier Airlines
Las Vegas — Denver
27h 10m
including layover
Find flight
from$62
19:38 — 03:59
+1 day
19:38 — 21:04 F91466 Frontier Airlines
San Diego — Las Vegas
3h 55m stop
00:59 — 03:59 F92430 Frontier Airlines
Las Vegas — Denver
7h 21m
including layover
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from$64
20:41 — 22:04
+1 day
21:38 — 23:05 F91470 Frontier Airlines
San Diego — Las Vegas
20h 40m stop
20:44 — 23:48 F94612 Frontier Airlines
Las Vegas — Denver
24h 23m
including layover
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from$62
20:51 — 07:51
+1 day
20:39 — 23:01 F92888 Frontier Airlines
San Diego — Phoenix
6h 47m stop
07:00 — 08:54 F91376 Frontier Airlines
Phoenix — Denver
10h
including layover
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from$62
21:38 — 03:59
+1 day
21:38 — 23:05 F91470 Frontier Airlines
San Diego — Las Vegas
1h 54m stop
00:59 — 03:59 F92430 Frontier Airlines
Las Vegas — Denver
5h 21m
including layover
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from$64
21:48 — 07:56
+1 day
21:48 — 00:12 F93168 Frontier Airlines
San Diego — Phoenix
5h 48m stop
06:00 — 07:56 F91376 Frontier Airlines
Phoenix — Denver
9h 8m
including layover
Find flight
from$77
*Departure and arrival times - local. Updated on March 12, 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 21:48 from 11 San Diego airport and arrive 06:15 to 21:48 to 2 Denver airports. Average flight time is 2h 28m.

  • The fastest flight 2h 25m
  • Average flight time 2h 28m
  • The earliest flight 06:15
  • The latest flight 21:48
  • Distance 852 ml

The cheapest months to travel to Denver are february (from 33 $), december (from 35 $), january (from 47 $).

The most expensive months are november (from 54 $), january (from 47 $), december (from 35 $).

What is the lowest airfare San Diego to Denver?

The cheapest plane ticket found by our users is $33. This airfare is for economy class on one-way F92712 flight by Frontier Airlines for February 1, 2025 which leaves San Diego in San Diego at 06:25 am and arrives at Denver Denver International at 09:56.

Economy class
$33
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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 7 regular airlines and 4 low-cost airlines. Most of the flights on this route are operated by Frontier Airlines - 44 departures per week at the price of from $ 33 . And the most expensive tickets are offered by Aeromexico airline - from $ 653.

Direct flights

There are 14 nonstop flights on the route. The fastest direct flight is UA1924 by United Airlines takes 2h 25m and the cheapest is F92712 by Frontier Airlines for $33.

See more direct flights

Connecting Flights

There are 186 flights with layovers on the route. The fastest connecting flight is UA5249 by United Airlines takes 4h 9m and the cheapest is F92712 by Frontier Airlines for $56.

  • from $56
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  • from $141
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  • AS - Alaska Airlines
    from $142
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  • SY - Sun Country Airlines
    from $125
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  • WS - WestJet
    from $523
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  • AM - Aeromexico
    from $653
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  • NK - Spirit Airlines
    from $218
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See more connecting flights

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 $33
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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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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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