United Airlines Denver to San Diego Flights

One way Round trip

Adults

Children under 12

Infants under 2 without place

Economy

Business

First

done

Return flight: San Diego – Denver

Page navigation

Best Airfare Price Calendar Flights Schedule

Cheapflightsplus.com will find cheap United Airlines flights from Denver to San Diego. Compare airline ticket prices and book air tickets starting from $55 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 Denver (CO) — San Diego (CA) 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 january: one-way - $55, two-way – $94.

Direct flights

Check to choose departure date Check to choose departure date

Check prices for return flight

Find flights

Cheap Flights from Denver to San Diego 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 $55. The fastest nonstop flight takes 2h 28m. The fastest connecting flight — 4h 32m.

Price	Departure	Arrival	Flight Time	Airline	Flight
from $55 Find flight	7:18 pm Denver Denver International	8:46 pm San Diego San Diego	2h 28m	United Airlines	UA540
from $114 Find flight	9:00 pm Denver Denver International	10:30 pm San Diego San Diego	2h 30m	United Airlines	UA778
from $135 Find flight	9:05 pm Denver Denver International	10:40 pm San Diego San Diego	2h 35m	United Airlines	UA486
from $193 Find flight	11:34 am Denver Denver International	1:11 pm San Diego San Diego	2h 37m	United Airlines	UA366
from $119 Find flight	10:15 am Denver Denver International	2:49 pm San Diego San Diego	5h 34m layover 1h 6m - San Francisco	United Airlines	UA2041 UA2041
from $124 Find flight	7:45 pm Denver Denver International	11:58 pm San Diego San Diego	5h 13m layover 1h 33m - Los Angeles	United Airlines	UA1368 UA5612
from $124 Find flight	6:00 am Denver Denver International	9:32 am San Diego San Diego	4h 32m layover 0h 48m - Los Angeles	United Airlines	UA1093 UA4643
from $144 Find flight	4:15 pm Denver Denver International	7:53 pm San Diego San Diego	4h 38m layover 1h 0m - Los Angeles	United Airlines	UA564 UA5415
from $144 Find flight	1:26 pm Denver Denver International	7:53 pm San Diego San Diego	7h 27m layover 3h 47m - Los Angeles	United Airlines	UA282 UA5415
from $172 Find flight	5:50 pm Denver Denver International	11:58 pm San Diego San Diego	7h 8m layover 3h 27m - Los Angeles	United Airlines	UA2240 UA5612
from $203 Find flight	1:26 pm Denver Denver International	7:53 pm San Diego San Diego	7h 27m layover 3h 50m - Los Angeles	United Airlines	UA330 UA5415
from $227 Find flight	6:00 am Denver Denver International	2:49 pm San Diego San Diego	9h 49m layover 5h 20m - San Francisco	United Airlines	UA573 UA2041
from $227 Find flight	10:15 am Denver Denver International	6:34 pm San Diego San Diego	9h 19m layover 4h 51m - San Francisco	United Airlines	UA2041 UA1057
from $207 Find flight	9:41 am Denver Denver International	8:39 pm San Diego San Diego	11h 58m layover 4h 53m - Phoenix 1h 5m - San Francisco	United Airlines	UA711 UA2062 UA2633
from $208 Find flight	1:25 pm Denver Denver International	11:58 pm San Diego San Diego	11h 33m layover 5h 56m - Phoenix 1h 1m - Los Angeles	United Airlines	UA2057 UA1892 UA5612
from $208 Find flight	1:25 pm Denver Denver International	0:14 am+1 день San Diego San Diego	11h 49m layover 5h 15m - Phoenix 0h 45m - San Francisco	United Airlines	UA2057 UA1603 UA2201

Show All Flights

*Departure and arrival times are local. Prices are for one-way flights. Information refreshed on 01/09/2025

United Airlines Flight Schedule Denver to San Diego

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
11:34 am — 1:11 pm	11:34 am — 1:11 pm UA366 United Airlines Denver — San Diego	2h 37m	Find flight from$193
7:18 pm — 8:46 pm	7:18 pm — 8:46 pm UA540 United Airlines Denver — San Diego	2h 28m	Find flight from$55
9:00 pm — 10:30 pm	9:00 pm — 10:30 pm UA778 United Airlines Denver — San Diego	2h 30m	Find flight from$114
9:05 pm — 10:40 pm	9:05 pm — 10:40 pm UA486 United Airlines Denver — San Diego	2h 35m	Find flight from$135
10:15 am — 2:49 pm	9:47 am — 11:45 am UA2041 United Airlines Denver — San Francisco 1h 6m stop 1:25 pm — 3:02 pm UA2041 United Airlines San Francisco — San Diego	5h 34m including layover	Find flight from$119
10:15 am — 6:34 pm	10:15 am — 12:04 pm UA2041 United Airlines Denver — San Francisco 4h 51m stop 4:55 pm — 6:34 pm UA1057 United Airlines San Francisco — San Diego	9h 19m including layover	Find flight from$227
11:33 am — 8:39 pm	11:33 am — 1:23 pm UA1561 United Airlines Denver — San Francisco 5h 37m stop 7:00 pm — 8:39 pm UA2633 United Airlines San Francisco — San Diego	10h 6m including layover	Find flight from$227
1:26 pm — 7:53 pm	1:26 pm — 3:03 pm UA282 United Airlines Denver — Los Angeles 3h 47m stop 6:50 pm — 7:53 pm UA5415 United Airlines Los Angeles — San Diego	7h 27m including layover	Find flight from$144
1:26 pm — 7:53 pm	1:26 pm — 3:05 pm UA330 United Airlines Denver — Los Angeles 3h 50m stop 6:55 pm — 7:53 pm UA5415 United Airlines Los Angeles — San Diego	7h 27m including layover	Find flight from$203
3:59 pm — 0:14 am +1 day	3:59 pm — 5:50 pm UA1300 United Airlines Denver — San Francisco 4h 45m stop 10:35 pm — 0:14 am UA2201 United Airlines San Francisco — San Diego	9h 15m including layover	Find flight from$227
3:59 pm — 8:39 pm	3:59 pm — 5:50 pm UA1300 United Airlines Denver — San Francisco 1h 10m stop 7:00 pm — 8:39 pm UA2633 United Airlines San Francisco — San Diego	5h 40m including layover	Find flight from$259
4:15 pm — 7:53 pm	4:05 pm — 5:39 pm UA564 United Airlines Denver — Los Angeles 1h stop 6:50 pm — 7:53 pm UA5415 United Airlines Los Angeles — San Diego	4h 38m including layover	Find flight from$144
5:50 pm — 11:58 pm	5:40 pm — 7:14 pm UA2240 United Airlines Denver — Los Angeles 3h 27m stop 10:55 pm — 11:58 pm UA5612 United Airlines Los Angeles — San Diego	7h 8m including layover	Find flight from$172
5:50 pm — 0:14 am +1 day	5:50 pm — 7:46 pm UA1007 United Airlines Denver — San Francisco 2h 49m stop 10:35 pm — 0:14 am UA548 United Airlines San Francisco — San Diego	7h 24m including layover	Find flight from$261
6:00 am — 9:32 am	6:00 am — 7:34 am UA1093 United Airlines Denver — Los Angeles 48m stop 8:45 am — 9:48 am UA4643 United Airlines Los Angeles — San Diego	4h 32m including layover	Find flight from$124
6:00 am — 2:49 pm	6:00 am — 7:49 am UA573 United Airlines Denver — San Francisco 5h 20m stop 1:25 pm — 3:02 pm UA2041 United Airlines San Francisco — San Diego	9h 49m including layover	Find flight from$227
7:45 pm — 11:58 pm	7:45 pm — 9:19 pm UA1368 United Airlines Denver — Los Angeles 1h 33m stop 10:55 pm — 11:58 pm UA5612 United Airlines Los Angeles — San Diego	5h 13m including layover	Find flight from$124

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

*Departure and arrival times are local. Last updated on 01/09/2025

Flight Information

There are 4 flights by United Airlines from Denver to San Diego every week with departures from Denver International and Arapahoe Co. All flights arrive at 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.

Departures start from 10:15 am to 9:41 am. Nonstop flight is 2h 28m. The time difference between Denver and San Diego is 1h.

The fastest flight 2h 28m
Average flight time 2h 33m
The earliest flight 10:15 am
The latest flight 9:41 am
Distance 852 ml

The cheapest months for traveling to San Diego are january (from 55 $), december (from 100 $), february (from 135 $).

The most expensive and popular months are november (from 152 $), february (from 135 $), december (from 100 $).

The cheapest flight by United Airlines that our users were able to find is $55. This airfare is economy class on one-way UA540 flight for January 15, 2025 leaving Denver International in Denver at 7:18 pm, it includes all taxes and additional fees.

Find same flight?

United Airlines Airplanes on the Route

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

Boeing 737-900

from $55

Find

Other Popular Airlines on the Route

Besides United Airlines there are other 3 airline carriers between Denver and San Diego. Please review schedules and prices from the most popular airlines to find the best airfare deals from Denver to San Diego.

Nonstop flights

There are 10 direct flights every day from Denver. Airlines and fares are below:

F9 - Frontier Airlines

from $29

Find

See more direct flights

Connecting Flights

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

AS - Alaska Airlines

from $135

Find
F9 - Frontier Airlines

from $55

Find
AM - Aeromexico

from $725

Find

See more connecting flights

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 airfare.
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.