United Airlines San Diego to Denver Flights

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Cheapflightsplus.com will find cheap United Airlines flights from San Diego to Denver. Compare airline ticket prices and book air tickets starting from $108 from trusted online travel agencies, web sites and directly from airlines. Check flights schedule of United Airlines, arrivals and departure details below.

Find Cheap Airfare San Diego (CA) — Denver (CO) by United 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 september: one-way - $108, two-way – $185.

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Cheap Flights from San Diego to Denver by United Airlines

Look at the list of plane tickets for the most popular direct and connecting flights by United Airlines, their prices start from $108. The fastest nonstop flight takes 2h 28m. The fastest connecting flight — 5h 51m.

Price	Departure	Arrival	Flight Time	Airline	Flight
from $108 Find flight	6:45 am San Diego San Diego	10:13 am Denver Denver International	2h 28m	United Airlines	UA2270
from $108 Find flight	8:45 am San Diego San Diego	12:13 pm Denver Denver International	2h 28m	United Airlines	UA2476
from $108 Find flight	7:01 pm San Diego San Diego	10:29 pm Denver Denver International	2h 28m	United Airlines	UA519
from $136 Find flight	12:45 pm San Diego San Diego	4:13 pm Denver Denver International	2h 28m	United Airlines	UA1220
from $160 Find flight	10:43 am San Diego San Diego	7:33 pm Denver Denver International	7h 50m layover 3h 30m - San Francisco	United Airlines	UA2855 UA566
from $160 Find flight	1:50 pm San Diego San Diego	10:39 pm Denver Denver International	7h 49m layover 3h 35m - San Francisco	United Airlines	UA1763 UA1230
from $161 Find flight	5:50 pm San Diego San Diego	0:48 am+1 день Denver Denver International	5h 58m layover 1h 47m - San Francisco	United Airlines	UA1871 UA1317
from $174 Find flight	4:00 pm San Diego San Diego	0:48 am+1 день Denver Denver International	7h 48m layover 3h 37m - San Francisco	United Airlines	UA2117 UA1317
from $205 Find flight	9:45 am San Diego San Diego	6:13 pm Denver Denver International	7h 28m layover 3h 7m - San Francisco	United Airlines	UA305 UA1702
from $259 Find flight	6:20 am San Diego San Diego	3:00 pm Denver Denver International	7h 40m layover 3h 19m - San Francisco	United Airlines	UA1986 UA1374
from $274 Find flight	3:25 pm San Diego San Diego	11:38 pm Denver Denver International	7h 13m layover 1h 12m - Houston	United Airlines	UA1179 UA1338
from $275 Find flight	8:00 am San Diego San Diego	3:00 pm Denver Denver International	6h 0m layover 1h 39m - San Francisco	United Airlines	UA2863 UA1374
from $408 Find flight	11:58 am San Diego San Diego	10:29 pm Denver Denver International	9h 31m layover 3h 13m - Houston	United Airlines	UA2237 UA2215
from $408 Find flight	10:15 am San Diego San Diego	7:59 pm Denver Denver International	8h 44m layover 2h 26m - Houston	United Airlines	UA2140 UA1654
from $415 Find flight	6:15 am San Diego San Diego	4:40 pm Denver Denver International	9h 25m layover 3h 10m - Houston	United Airlines	UA496 UA241
from $414 Find flight	7:27 pm San Diego San Diego	8:55 am+1 день Denver Denver International	12h 28m layover 2h 54m - San Francisco 1h 35m - Houston	United Airlines	UA505 UA505 UA2433

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*Departure and arrival times are local. Prices are for one-way flights. Information refreshed on 08/27/2025

United 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
10:00 pm — 8:17 am +1 day	10:00 pm — 5:59 am UA2129 United Airlines San Diego — Washington D.C. 31m stop 6:30 am — 8:17 am UA1026 United Airlines Washington D.C. — Denver	9h 17m including layover	Find flight from$1473
10:15 am — 7:59 pm	10:15 am — 3:39 pm UA2140 United Airlines San Diego — Houston 2h 26m stop 6:05 pm — 7:59 pm UA1654 United Airlines Houston — Denver	8h 44m including layover	Find flight from$408
10:20 pm — 8:58 am +1 day	10:20 pm — 4:30 am UA1726 United Airlines San Diego — Chicago 2h 40m stop 7:10 am — 8:58 am UA791 United Airlines Chicago — Denver	9h 38m including layover	Find flight from$733
10:43 am — 7:33 pm	10:43 am — 12:20 pm UA2855 United Airlines San Diego — San Francisco 3h 30m stop 3:50 pm — 7:33 pm UA566 United Airlines San Francisco — Denver	7h 50m including layover	Find flight from$160
10:54 am — 6:08 pm	10:54 am — 12:05 pm UA5249 United Airlines San Diego — Los Angeles 2h 33m stop 2:38 pm — 6:08 pm UA2614 United Airlines Los Angeles — Denver	6h 14m including layover	Find flight from$415
11:58 am — 10:29 pm	11:58 am — 5:22 pm UA2237 United Airlines San Diego — Houston 3h 13m stop 8:35 pm — 10:29 pm UA2215 United Airlines Houston — Denver	9h 31m including layover	Find flight from$408
12:45 pm — 4:13 pm	12:45 pm — 4:13 pm UA1220 United Airlines San Diego — Denver	2h 28m	Find flight from$136
1:50 pm — 10:39 pm	1:30 pm — 3:08 pm UA1763 United Airlines San Diego — San Francisco 3h 35m stop 7:05 pm — 10:41 pm UA1230 United Airlines San Francisco — Denver	7h 49m including layover	Find flight from$160
3:25 pm — 11:38 pm	3:25 pm — 8:45 pm UA1179 United Airlines San Diego — Houston 1h 12m stop 10:05 pm — 11:46 pm UA1338 United Airlines Houston — Denver	7h 13m including layover	Find flight from$274
4:00 pm — 0:48 am +1 day	4:00 pm — 5:38 pm UA2117 United Airlines San Diego — San Francisco 3h 37m stop 9:15 pm — 0:48 am UA1317 United Airlines San Francisco — Denver	7h 48m including layover	Find flight from$174
5:50 pm — 0:48 am +1 day	5:50 pm — 7:28 pm UA1871 United Airlines San Diego — San Francisco 1h 47m stop 9:15 pm — 0:48 am UA1317 United Airlines San Francisco — Denver	5h 58m including layover	Find flight from$161
6:15 am — 4:40 pm	6:15 am — 11:40 am UA496 United Airlines San Diego — Houston 3h 10m stop 2:50 pm — 4:40 pm UA241 United Airlines Houston — Denver	9h 25m including layover	Find flight from$415
6:20 am — 3:00 pm	6:20 am — 7:58 am UA1986 United Airlines San Diego — San Francisco 3h 19m stop 11:17 am — 3:00 pm UA1374 United Airlines San Francisco — Denver	7h 40m including layover	Find flight from$259
6:45 am — 10:13 am	6:45 am — 10:13 am UA2270 United Airlines San Diego — Denver	2h 28m	Find flight from$108
7:01 pm — 10:29 pm	7:01 pm — 10:29 pm UA519 United Airlines San Diego — Denver	2h 28m	Find flight from$108
7:27 pm — 8:55 am +1 day	7:27 pm — 9:05 pm UA505 United Airlines San Diego — San Francisco 2h 54m stop 11:59 pm — 5:45 am UA505 United Airlines San Francisco — Houston 1h 35m stop 7:20 am — 8:55 am UA2433 United Airlines Houston — Denver	12h 28m including layover	Find flight from$414
7:27 pm — 9:55 am +1 day	7:27 pm — 9:05 pm UA505 United Airlines San Diego — San Francisco 2h 54m stop 11:59 pm — 5:45 am UA505 United Airlines San Francisco — Houston 2h 40m stop 8:25 am — 9:55 am UA1409 United Airlines Houston — Denver	13h 28m including layover	Find flight from$420
8:00 am — 3:00 pm	7:50 am — 9:27 am UA2863 United Airlines San Diego — San Francisco 1h 39m stop 11:17 am — 3:00 pm UA1374 United Airlines San Francisco — Denver	6h including layover	Find flight from$275
8:45 am — 12:13 pm	8:45 am — 12:13 pm UA2476 United Airlines San Diego — Denver	2h 28m	Find flight from$108
9:45 am — 6:13 pm	9:42 am — 11:20 am UA305 United Airlines San Diego — San Francisco 3h 7m stop 2:27 pm — 6:10 pm UA1702 United Airlines San Francisco — Denver	7h 28m including layover	Find flight from$205
9:45 am — 4:36 pm	9:42 am — 11:20 am UA305 United Airlines San Diego — San Francisco 1h 32m stop 12:55 pm — 4:36 pm UA1333 United Airlines San Francisco — Denver	5h 51m including layover	Find flight from$273

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

*Departure and arrival times are local. Last updated on 08/27/2025

Flight Information

There are 4 flights by United 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 10:00 pm to 9:45 am. Nonstop flight is 2h 28m. The time difference between San Diego and Denver is 1h.

The fastest flight 2h 28m
Average flight time 2h 28m
The earliest flight 10:00 pm
The latest flight 9:45 am
Distance 852 ml

The cheapest months for traveling to Denver are september (from 108 $), october (from 112 $), august (from 114 $).

The most expensive and popular months are may (from 169 $), february (from 168 $), june (from 152 $).

The cheapest flight by United Airlines that our users were able to find is $108. This airfare is economy class on one-way UA2270 flight for September 27, 2025 leaving San Diego in San Diego at 6:45 am, it includes all taxes and additional fees.

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United Airlines Airplanes on the Route

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

Other Popular Airlines on the Route

Besides United Airlines there are other 5 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 4 direct flights every day from San Diego. Airlines and fares are below:

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Connecting Flights

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

F9 - Frontier Airlines

from $169

Find
AS - Alaska Airlines

from $179

Find
HA - Hawaiian Airlines

from $349

Find
AM - Aeromexico

from $642

Find
NK - Spirit Airlines

from $252

Find

See more connecting flights

How to book an air ticket yourself?

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