Cheap Flights from San Diego, CA to Denver, CO from $39

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On Cheapflightsplus.com you will find 15 direct and 253 connecting flights from San Diego to Denver. You can compare airfare deals from 7 airlines and multiple travel sites from $39, 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: $39 (one-way), $67 (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 $39. The fastest direct flight takes 2h 26m and the fastest connecting – 4h 12m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $39 Find flight	06:41 San Diego San Diego	10:12 Denver Denver International	2h 31m	Frontier Airlines	F92818
from $60 Find flight	10:32 San Diego San Diego	14:00 Denver Denver International	2h 28m	Hawaiian Airlines	HA6401
from $60 Find flight	20:19 San Diego San Diego	23:47 Denver Denver International	2h 28m	Hawaiian Airlines	HA6403
from $63 Find flight	10:32 San Diego San Diego	14:00 Denver Denver International	2h 28m	Alaska Airlines	AS1068
from $63 Find flight	20:19 San Diego San Diego	23:47 Denver Denver International	2h 28m	Alaska Airlines	AS1070
from $77 Find flight	15:37 San Diego San Diego	19:10 Denver Denver International	2h 33m	Hawaiian Airlines	HA6408
from $80 Find flight	15:37 San Diego San Diego	19:10 Denver Denver International	2h 33m	Alaska Airlines	AS3024
from $83 Find flight	06:45 San Diego San Diego	10:13 Denver Denver International	2h 28m	United Airlines	UA2270
from $91 Find flight	11:17 San Diego San Diego	14:45 Denver Denver International	2h 28m	United Airlines	UA1337
from $105 Find flight	12:45 San Diego San Diego	16:13 Denver Denver International	2h 28m	United Airlines	UA1220
from $270 Find flight	16:14 San Diego San Diego	19:40 Denver Denver International	2h 26m	United Airlines	UA682
from $51 Find flight	12:51 San Diego San Diego	22:45 Denver Denver International	8h 54m layover 5h 17m - Las Vegas	Frontier Airlines	F91466 F94612
from $73 Find flight	10:09 San Diego San Diego	21:18 Denver Denver International	10h 9m layover 6h 42m - Phoenix	Frontier Airlines	F91572 F91820
from $73 Find flight	08:00 San Diego San Diego	20:00 Denver Denver International	11h 0m layover 7h 20m - Las Vegas	Frontier Airlines	F91470 F93540
from $73 Find flight	19:22 San Diego San Diego	09:44+1 день Denver Denver International	13h 22m layover 8h 46m - San Francisco	Frontier Airlines	F93383 F91230
from $79 Find flight	16:53 San Diego San Diego	07:32+1 день Denver Denver International	13h 39m layover 6h 44m - Chicago	Frontier Airlines	F91856 F91483

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*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on June 23, 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
06:41 — 10:12	06:41 — 10:12 F92818 Frontier Airlines San Diego — Denver	2h 31m	Find flight from$39
06:45 — 10:13	06:45 — 10:13 UA2270 United Airlines San Diego — Denver	2h 28m	Find flight from$83
08:45 — 12:13	08:45 — 12:13 UA347 United Airlines San Diego — Denver	2h 28m	Find flight from$108
09:02 — 12:30	09:02 — 12:30 UA2476 United Airlines San Diego — Denver	2h 28m	Find flight from$83
10:32 — 14:00	10:32 — 14:00 HA6401 Hawaiian Airlines San Diego — Denver	2h 28m	Find flight from$60
10:32 — 14:00	10:32 — 14:00 AS1068 Alaska Airlines San Diego — Denver	2h 28m	Find flight from$63
11:17 — 14:45	11:17 — 14:45 UA1337 United Airlines San Diego — Denver	2h 28m	Find flight from$91
12:45 — 16:13	12:45 — 16:13 UA1220 United Airlines San Diego — Denver	2h 28m	Find flight from$105
12:52 — 16:20	12:52 — 16:20 UA1483 United Airlines San Diego — Denver	2h 28m	Find flight from$91
15:37 — 19:10	15:37 — 19:10 HA6408 Hawaiian Airlines San Diego — Denver	2h 33m	Find flight from$77
15:37 — 19:10	15:37 — 19:10 AS3024 Alaska Airlines San Diego — Denver	2h 33m	Find flight from$80
16:14 — 19:40	16:14 — 19:40 UA682 United Airlines San Diego — Denver	2h 26m	Find flight from$270
18:32 — 22:00	18:32 — 22:00 UA519 United Airlines San Diego — Denver	2h 28m	Find flight from$83
20:19 — 23:47	20:19 — 23:47 HA6403 Hawaiian Airlines San Diego — Denver	2h 28m	Find flight from$60
20:19 — 23:47	20:19 — 23:47 AS1070 Alaska Airlines San Diego — Denver	2h 28m	Find flight from$63
06:25 — 12:21	18:52 — 20:17 F91470 Frontier Airlines San Diego — Las Vegas 1h 22m stop 09:14 — 12:19 F92016 Frontier Airlines Las Vegas — Denver	4h 56m including layover	Find flight from$83
08:00 — 20:00	18:52 — 20:17 F91470 Frontier Airlines San Diego — Las Vegas 7h 20m stop 15:46 — 18:57 F93540 Frontier Airlines Las Vegas — Denver	11h including layover	Find flight from$73
08:00 — 09:09 +1 day	08:00 — 09:31 F91470 Frontier Airlines San Diego — Las Vegas 20h 29m stop 06:00 — 09:09 F92350 Frontier Airlines Las Vegas — Denver	24h 9m including layover	Find flight from$73
09:58 — 18:43	09:58 — 11:50 F93381 Frontier Airlines San Diego — San Francisco 3h 10m stop 15:00 — 18:43 F91094 Frontier Airlines San Francisco — Denver	7h 45m including layover	Find flight from$83
11:08 — 18:06	11:08 — 12:20 UA5249 United Airlines San Diego — Los Angeles 2h 19m stop 14:39 — 18:06 UA2859 United Airlines Los Angeles — Denver	5h 58m including layover	Find flight from$94
12:51 — 22:45	19:38 — 21:04 F91466 Frontier Airlines San Diego — Las Vegas 5h 17m stop 20:44 — 23:48 F94612 Frontier Airlines Las Vegas — Denver	8h 54m including layover	Find flight from$51
13:03 — 04:00 +1 day	12:51 — 14:23 F91466 Frontier Airlines San Diego — Las Vegas 10h 25m stop 00:59 — 04:00 F91994 Frontier Airlines Las Vegas — Denver	13h 57m including layover	Find flight from$68
13:03 — 18:58	12:51 — 14:23 F91466 Frontier Airlines San Diego — Las Vegas 1h 12m stop 15:46 — 18:57 F93540 Frontier Airlines Las Vegas — Denver	4h 55m including layover	Find flight from$78
15:18 — 23:23	15:18 — 16:47 F92084 Frontier Airlines San Diego — Phoenix 3h 34m stop 20:21 — 23:23 F92142 Frontier Airlines Phoenix — Denver	7h 5m including layover	Find flight from$78
16:44 — 09:38 +1 day	16:53 — 22:56 F91856 Frontier Airlines San Diego — Chicago 8h 38m stop 09:05 — 10:58 F93173 Frontier Airlines Chicago — Denver	15h 54m including layover	Find flight from$84
16:53 — 07:32 +1 day	16:53 — 22:56 F91856 Frontier Airlines San Diego — Chicago 6h 44m stop 05:40 — 07:32 F91483 Frontier Airlines Chicago — Denver	13h 39m including layover	Find flight from$79
17:56 — 00:28 +1 day	17:56 — 19:35 UA1871 United Airlines San Diego — San Francisco 1h 17m stop 20:52 — 00:28 UA1871 United Airlines San Francisco — Denver	5h 32m including layover	Find flight from$118
18:14 — 17:07 +1 day	17:59 — 23:44 SY408 Sun Country Airlines San Diego — Minneapolis 16h 9m stop 16:12 — 17:27 SY657 Sun Country Airlines Minneapolis — Denver	21h 53m including layover	Find flight from$122
19:22 — 09:44 +1 day	17:22 — 19:09 F93383 Frontier Airlines San Diego — San Francisco 8h 46m stop 06:15 — 09:54 F91230 Frontier Airlines San Francisco — Denver	13h 22m including layover	Find flight from$73
19:22 — 23:45 +1 day	17:22 — 19:09 F93383 Frontier Airlines San Diego — San Francisco 22h 50m stop 18:19 — 22:03 F93440 Frontier Airlines San Francisco — Denver	27h 23m including layover	Find flight from$73
14:30 — 18:12 +1 day	14:30 — 15:48 NK2296 Spirit Airlines San Diego — Las Vegas 1h 30m stop 17:18 — 18:49 NK2382 Spirit Airlines Las Vegas — Stockton 19h 59m stop 14:50 — 18:14 G41635 Allegiant Air Stockton — Denver	26h 42m including layover	Find flight from$88
14:30 — 18:12 +1 day	14:30 — 15:48 NK2296 Spirit Airlines San Diego — Las Vegas 14h 47m stop 06:45 — 08:10 G425 Allegiant Air Las Vegas — Stockton 6h 48m stop 14:50 — 18:14 G41635 Allegiant Air Stockton — Denver	26h 42m including layover	Find flight from$108

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

*Departure and arrival times - local. Updated on June 23, 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 23:00 from 11 San Diego airport and arrive 06:15 to 23:00 to 2 Denver airports. Average flight time is 2h 28m.

The fastest flight 2h 26m
Average flight time 2h 28m
The earliest flight 06:15
The latest flight 23:00
Distance 852 ml

The cheapest months to travel to Denver are december (from 52 $), june (from 52 $), november (from 60 $).

The most expensive months are february (from 173 $), august (from 104 $), september (from 98 $).

What is the lowest airfare San Diego to Denver?

The cheapest plane ticket found by our users is $39. This airfare is for economy class on one-way F92818 flight by Frontier Airlines for June 26, 2025 which leaves San Diego in San Diego at 06:41 am and arrives at Denver Denver International at 10:12.

Economy class

$39

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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 3 low-cost airlines. Most of the flights on this route are operated by Frontier Airlines - 25 departures per week at the price of from $ 39 . And the most expensive tickets are offered by United Airlines airline - from $ 564.

Direct flights

There are 15 nonstop flights on the route. The fastest direct flight is UA682 by United Airlines takes 2h 26m and the cheapest is F92818 by Frontier Airlines for $39.

F9 - Frontier Airlines

from $39

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UA - United Airlines

from $83

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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 253 flights with layovers on the route. The fastest connecting flight is F94578 by Frontier Airlines takes 4h 12m and the cheapest is F92818 by Frontier Airlines for $51.

F9 - Frontier Airlines

from $51

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UA - United Airlines

from $94

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AS - Alaska Airlines

from $103

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SY - Sun Country Airlines

from $122

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HA - Hawaiian Airlines

from $97

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MX - Mexicana

from $215

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NK - Spirit Airlines

from $88

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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 $39
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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 7 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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