Cheap Flights from San Diego, CA to Denver, CO from $38
On Cheapflightsplus.com you will find 16 direct and 287 connecting flights from San Diego to Denver. You can compare airfare deals from 7 airlines and multiple travel sites from $38, 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
Best Flights from San Diego to Denver Today
Price | Departure | Arrival | Flight Duration | Airline | Flight |
---|---|---|---|---|---|
from $38 | 06:41 San Diego San Diego | 10:12 Denver Denver International | 2h 31m | Frontier Airlines | F92818 |
from $60 | 10:32 San Diego San Diego | 14:00 Denver Denver International | 2h 28m | Hawaiian Airlines | HA6401 |
from $60 | 20:19 San Diego San Diego | 23:47 Denver Denver International | 2h 28m | Hawaiian Airlines | HA6403 |
from $63 | 10:32 San Diego San Diego | 14:00 Denver Denver International | 2h 28m | Alaska Airlines | AS1068 |
from $63 | 20:19 San Diego San Diego | 23:47 Denver Denver International | 2h 28m | Alaska Airlines | AS1070 |
from $75 | 15:37 San Diego San Diego | 19:10 Denver Denver International | 2h 33m | Hawaiian Airlines | HA6408 |
from $78 | 15:37 San Diego San Diego | 19:10 Denver Denver International | 2h 33m | Alaska Airlines | AS3024 |
from $82 | 06:45 San Diego San Diego | 10:13 Denver Denver International | 2h 28m | United Airlines | UA2270 |
from $90 | 11:17 San Diego San Diego | 14:45 Denver Denver International | 2h 28m | United Airlines | UA1337 |
from $106 | 08:45 San Diego San Diego | 12:13 Denver Denver International | 2h 28m | United Airlines | UA347 |
from $51 | 12:51 San Diego San Diego | 22:45 Denver Denver International | 8h 54m layover 5h 17m - Las Vegas | Frontier Airlines | F91466 F94612 |
from $72 | 10:09 San Diego San Diego | 21:18 Denver Denver International | 10h 9m layover 6h 42m - Phoenix | Frontier Airlines | F91572 F91820 |
from $72 | 08:00 San Diego San Diego | 20:00 Denver Denver International | 11h 0m layover 7h 20m - Las Vegas | Frontier Airlines | F91470 F93540 |
from $72 | 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 $78 | 10:47 San Diego San Diego | 16:26 Denver Denver International | 4h 39m layover 0h 58m - Salt Lake City | Frontier Airlines | F91902 F93982 |
from $70 | 06:15 San Diego San Diego | 18:22 Denver Denver International | 11h 7m layover 0h 39m - Las Vegas 5h 10m - Stockton | Spirit Airlines | NK2369 NK2332 G41635 |
Flight Schedule San Diego (California) to Denver (Colorado)
Departure | Arrival | Flight Details | Flight Duration | Price |
---|---|---|---|---|
06:41 — 10:12
|
06:41 — 10:12
F92818
Frontier Airlines
San Diego — Denver
|
2h 31m |
Find flight
from$38 |
|
06:45 — 10:13
|
06:45 — 10:13
UA2270
United Airlines
San Diego — Denver
|
2h 28m |
Find flight
from$82 |
|
08:40 — 12:04
|
08:40 — 12:04
UA1829
United Airlines
San Diego — Denver
|
2h 24m |
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from$120 |
|
08:45 — 12:13
|
08:45 — 12:13
UA347
United Airlines
San Diego — Denver
|
2h 28m |
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from$106 |
|
09:02 — 12:30
|
09:02 — 12:30
UA2476
United Airlines
San Diego — Denver
|
2h 28m |
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from$82 |
|
10:32 — 14:00
|
10:32 — 14:00
HA6401
Hawaiian Airlines
San Diego — Denver
|
2h 28m |
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from$60 |
|
10:32 — 14:00
|
10:32 — 14:00
AS1068
Alaska Airlines
San Diego — Denver
|
2h 28m |
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from$63 |
|
11:17 — 14:45
|
11:17 — 14:45
UA1337
United Airlines
San Diego — Denver
|
2h 28m |
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from$90 |
|
12:45 — 16:13
|
12:45 — 16:13
UA1220
United Airlines
San Diego — Denver
|
2h 28m |
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from$103 |
|
12:52 — 16:20
|
12:52 — 16:20
UA1483
United Airlines
San Diego — Denver
|
2h 28m |
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from$90 |
|
15:37 — 19:10
|
15:37 — 19:10
HA6408
Hawaiian Airlines
San Diego — Denver
|
2h 33m |
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from$75 |
|
15:37 — 19:10
|
15:37 — 19:10
AS3024
Alaska Airlines
San Diego — Denver
|
2h 33m |
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from$78 |
|
16:14 — 19:40
|
16:14 — 19:40
UA682
United Airlines
San Diego — Denver
|
2h 26m |
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from$120 |
|
18:32 — 22:00
|
18:32 — 22:00
UA519
United Airlines
San Diego — Denver
|
2h 28m |
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from$82 |
|
20:19 — 23:47
|
20:19 — 23:47
HA6403
Hawaiian Airlines
San Diego — Denver
|
2h 28m |
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from$60 |
|
20:19 — 23:47
|
20:19 — 23:47
AS1070
Alaska Airlines
San Diego — Denver
|
2h 28m |
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from$63 |
|
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$72 |
|
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 |
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from$72 |
|
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$81 |
|
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$93 |
|
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$67 |
|
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$77 |
|
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$77 |
|
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$83 |
|
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$78 |
|
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$116 |
|
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$72 |
|
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$72 |
|
06:15 — 18:22
|
06:15 — 07:35
NK2369
Spirit Airlines
San Diego — Las Vegas
39m stop
08:14 — 09:46
NK2332
Spirit Airlines
Las Vegas — Stockton
5h 10m stop
14:56 — 18:22
G41635
Allegiant Air
Stockton — Denver
|
11h 7m including layover |
Find flight
from$70 |
|
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$87 |
|
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$107 |
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 24m
- 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 51 $), june (from 58 $), november (from 59 $).
The most expensive months are february (from 170 $), august (from 103 $), september (from 97 $).
What is the lowest airfare San Diego to Denver?
The cheapest plane ticket found by our users is $38. This airfare is for economy class on one-way F92818 flight by Frontier Airlines for June 5, 2025 which leaves San Diego in San Diego at 06:41 am and arrives at Denver Denver International at 10:12.
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 $ 38 . And the most expensive tickets are offered by United Airlines airline - from $ 595.
Direct flights
There are 16 nonstop flights on the route. The fastest direct flight is UA1829 by United Airlines takes 2h 24m and the cheapest is F92818 by Frontier Airlines for $38.
- from $38Find
- from $82Find
- AS - Alaska Airlinesfrom $63Find
- HA - Hawaiian Airlinesfrom $60Find
Connecting Flights
There are 287 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.
- from $51Find
- from $93Find
- AS - Alaska Airlinesfrom $102Find
- SY - Sun Country Airlinesfrom $120Find
- HA - Hawaiian Airlinesfrom $96Find
- MX - Mexicanafrom $212Find
- NK - Spirit Airlinesfrom $70Find
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-SANfrom $38Find
- San Diego Regional-USAFind
- Gillespie Field-SEEFind
- Golden Triangle Reg.-GTRFind
- El Cajon-CJNFind
- Lowndes County-UBSFind
- Miramar NAS-NKXFind
- Montgomery Field-MYFFind
- North Island NAS-NZYFind
- Brown Field Municipal-SDMFind
- AFB-CBMFind
Denver airports
- Denver International-DENFind
- Arapahoe Co-APAFind
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.
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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.
- from $65Find
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- from $60Find
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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