Frontier Airlines San Diego to Denver Flights

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Cheapflightsplus.com will find cheap Frontier Airlines flights from San Diego to Denver. Compare airline ticket prices and book air tickets starting from $39 from trusted online travel agencies, web sites and directly from airlines. Check flights schedule of Frontier Airlines, arrivals and departure details below.

Find Cheap Airfare San Diego (CA) — Denver (CO) by Frontier Airlines

To find cheap tickets choose a day of your departure with attractive price on the graph below and click «Find flights». For round trip flights please click «Check prices for return flight». The cheapest airfare is in july: one-way - $39, two-way – $67.

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Cheap Flights from San Diego to Denver by Frontier Airlines

Look at the list of plane tickets for the most popular direct and connecting flights by Frontier Airlines, their prices start from $39. The fastest nonstop flight takes 2h 31m. The fastest connecting flight — 4h 12m.

Price	Departure	Arrival	Flight Time	Airline	Flight
from $39 Find flight	6:41 am San Diego San Diego	10:12 am Denver Denver International	2h 31m	Frontier Airlines	F92818
from $51 Find flight	12:51 pm San Diego San Diego	10:45 pm Denver Denver International	8h 54m layover 5h 17m - Las Vegas	Frontier Airlines	F91466 F94612
from $73 Find flight	8:00 am San Diego San Diego	8:00 pm Denver Denver International	11h 0m layover 7h 20m - Las Vegas	Frontier Airlines	F91470 F93540
from $73 Find flight	7:22 pm San Diego San Diego	9:44 am+1 день Denver Denver International	13h 22m layover 8h 46m - San Francisco	Frontier Airlines	F93383 F91230
from $73 Find flight	7:22 pm San Diego San Diego	11:45 pm+1 день Denver Denver International	27h 23m layover 22h 50m - San Francisco	Frontier Airlines	F93383 F93440
from $73 Find flight	10:09 am San Diego San Diego	9:18 pm Denver Denver International	10h 9m layover 6h 42m - Phoenix	Frontier Airlines	F91572 F91820
from $78 Find flight	3:18 pm San Diego San Diego	11:23 pm Denver Denver International	7h 5m layover 3h 34m - Phoenix	Frontier Airlines	F92084 F92142
from $79 Find flight	4:53 pm San Diego San Diego	7:32 am+1 день Denver Denver International	13h 39m layover 6h 44m - Chicago	Frontier Airlines	F91856 F91483
from $80 Find flight	10:47 am San Diego San Diego	4:26 pm Denver Denver International	4h 39m layover 0h 58m - Salt Lake City	Frontier Airlines	F91902 F93982
from $80 Find flight	10:47 am San Diego San Diego	10:26 pm Denver Denver International	10h 39m layover 6h 56m - Salt Lake City	Frontier Airlines	F91902 F94252
from $83 Find flight	8:36 am San Diego San Diego	2:07 pm Denver Denver International	4h 31m layover 1h 5m - Phoenix	Frontier Airlines	F91572 F94768
from $83 Find flight	9:58 am San Diego San Diego	6:43 pm Denver Denver International	7h 45m layover 3h 10m - San Francisco	Frontier Airlines	F93381 F91094
from $84 Find flight	10:47 am San Diego San Diego	10:22 pm Denver Denver International	10h 35m layover 6h 55m - Salt Lake City	Frontier Airlines	F91902 F93220
from $84 Find flight	10:47 am San Diego San Diego	8:55 am+1 день Denver Denver International	21h 8m layover 17h 33m - Salt Lake City	Frontier Airlines	F91902 F93862
from $87 Find flight	7:22 pm San Diego San Diego	3:59 am+1 день Denver Denver International	7h 37m layover 4h 7m - Las Vegas	Frontier Airlines	F91326 F91994
from $87 Find flight	7:22 pm San Diego San Diego	12:21 pm+1 день Denver Denver International	15h 59m layover 12h 22m - Las Vegas	Frontier Airlines	F91326 F92016

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*Departure and arrival times are local. Prices are for one-way flights. Information refreshed on 06/23/2025

Frontier Airlines Flight Schedule San Diego to Denver

Below is a detailed 2025 flight schedule for today, tomorrow and all other days. It may vary depending on season and a day of the week of your desired trip. We recommend booking your itinerary at least 2 weeks prior your travel to get the best price and availability by the airline.

Departure	Flight Details	Flight Time	Price
6:41 am — 10:12 am	6:41 am — 10:12 am F92818 Frontier Airlines San Diego — Denver	2h 31m	Find flight from$39
10:09 am — 9:18 pm	10:09 am — 11:43 am F91572 Frontier Airlines San Diego — Phoenix 6h 42m stop 6:25 pm — 9:18 pm F91820 Frontier Airlines Phoenix — Denver	10h 9m including layover	Find flight from$73
10:47 am — 4:26 pm	10:47 am — 1:47 pm F91902 Frontier Airlines San Diego — Salt Lake City 58m stop 2:45 pm — 4:26 pm F93982 Frontier Airlines Salt Lake City — Denver	4h 39m including layover	Find flight from$80
12:51 pm — 10:45 pm	7:38 pm — 9:04 pm F91466 Frontier Airlines San Diego — Las Vegas 5h 17m stop 8:44 pm — 11:48 pm F94612 Frontier Airlines Las Vegas — Denver	8h 54m including layover	Find flight from$51
1:03 pm — 4:00 am +1 day	12:51 pm — 2:23 pm F91466 Frontier Airlines San Diego — Las Vegas 10h 25m stop 0:59 am — 4:00 am F91994 Frontier Airlines Las Vegas — Denver	13h 57m including layover	Find flight from$68
1:03 pm — 6:58 pm	12:51 pm — 2:23 pm F91466 Frontier Airlines San Diego — Las Vegas 1h 12m stop 3:46 pm — 6:57 pm F93540 Frontier Airlines Las Vegas — Denver	4h 55m including layover	Find flight from$78
3:18 pm — 11:23 pm	3:18 pm — 4:47 pm F92084 Frontier Airlines San Diego — Phoenix 3h 34m stop 8:21 pm — 11:23 pm F92142 Frontier Airlines Phoenix — Denver	7h 5m including layover	Find flight from$78
4:44 pm — 9:38 am +1 day	4:53 pm — 10:56 pm F91856 Frontier Airlines San Diego — Chicago 8h 38m stop 9:05 am — 10:58 am F93173 Frontier Airlines Chicago — Denver	15h 54m including layover	Find flight from$84
4:53 pm — 7:32 am +1 day	4:53 pm — 10:56 pm F91856 Frontier Airlines San Diego — Chicago 6h 44m stop 5:40 am — 7:32 am F91483 Frontier Airlines Chicago — Denver	13h 39m including layover	Find flight from$79
6:25 am — 12:21 pm	6:52 pm — 8:17 pm F91470 Frontier Airlines San Diego — Las Vegas 1h 22m stop 9:14 am — 12:19 pm F92016 Frontier Airlines Las Vegas — Denver	4h 56m including layover	Find flight from$83
7:22 pm — 9:44 am +1 day	5:22 pm — 7:09 pm F93383 Frontier Airlines San Diego — San Francisco 8h 46m stop 6:15 am — 9:54 am F91230 Frontier Airlines San Francisco — Denver	13h 22m including layover	Find flight from$73
7:22 pm — 11:45 pm +1 day	5:22 pm — 7:09 pm F93383 Frontier Airlines San Diego — San Francisco 22h 50m stop 6:19 pm — 10:03 pm F93440 Frontier Airlines San Francisco — Denver	27h 23m including layover	Find flight from$73
8:00 am — 8:00 pm	6:52 pm — 8:17 pm F91470 Frontier Airlines San Diego — Las Vegas 7h 20m stop 3:46 pm — 6:57 pm F93540 Frontier Airlines Las Vegas — Denver	11h including layover	Find flight from$73
8:00 am — 9:09 am +1 day	8:00 am — 9:31 am F91470 Frontier Airlines San Diego — Las Vegas 20h 29m stop 6:00 am — 9:09 am F92350 Frontier Airlines Las Vegas — Denver	24h 9m including layover	Find flight from$73
9:58 am — 6:43 pm	9:58 am — 11:50 am F93381 Frontier Airlines San Diego — San Francisco 3h 10m stop 3:00 pm — 6:43 pm F91094 Frontier Airlines San Francisco — Denver	7h 45m including layover	Find flight from$83
9:58 am — 9:44 am +1 day	9:58 am — 11:50 am F93381 Frontier Airlines San Diego — San Francisco 18h 10m stop 6:00 am — 9:44 am F91230 Frontier Airlines San Francisco — Denver	22h 46m including layover	Find flight from$96

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

*Departure and arrival times are local. Last updated on 06/23/2025

Flight Information

There is 1 flight by Frontier Airlines from San Diego to Denver every week with departures from San Diego, AFB, Golden Triangle Reg., Lowndes County, San Diego Regional, El Cajon, Montgomery Field, Miramar NAS, North Island NAS, Brown Field Municipal, Gillespie Field. All flights arrive at Denver International and Arapahoe Co.

Departures start from 10:09 am to 9:58 am. Nonstop flight is 2h 31m. The time difference between San Diego and Denver is 1h.

The fastest flight 2h 31m
Average flight time 2h 31m
The earliest flight 10:09 am
The latest flight 9:58 am
Distance 852 ml

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

The most expensive and popular months are august (from 104 $), september (from 98 $), july (from 91 $).

The cheapest flight by Frontier Airlines that our users were able to find is $39. This airfare is economy class on one-way F92818 flight for June 26, 2025 leaving San Diego in San Diego at 6:41 am, it includes all taxes and additional fees.

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Frontier Airlines Airplanes on the Route

List of the most popular Frontier Airlines airplanes flying from San Diego to Denver:

Other Popular Airlines on the Route

Besides Frontier Airlines there are other 6 airline carriers between San Diego and Denver. Please review schedules and prices from the most popular airlines to find the best airfare deals from San Diego to Denver.

Nonstop flights

There are 15 direct flights every day from San Diego. Airlines and fares are below:

UA - United Airlines

from $83

Find
AS - Alaska Airlines

from $63

Find
HA - Hawaiian Airlines

from $60

Find

See more direct flights

Connecting Flights

List of flights with layovers (1 and more stops):

UA - United Airlines

from $94

Find
AS - Alaska Airlines

from $103

Find
SY - Sun Country Airlines

from $122

Find
HA - Hawaiian Airlines

from $97

Find
MX - Mexicana

from $215

Find
NK - Spirit Airlines

from $88

Find

See more connecting flights

How to book an air ticket yourself?

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