United Airlines Denver to San Diego Flights

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Cheapflightsplus.com will find cheap United Airlines flights from Denver to San Diego. Compare airline ticket prices and book air tickets starting from $56 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 february: one-way - $56, two-way – $96.

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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 $56. The fastest nonstop flight takes 2h 28m. The fastest connecting flight — 4h 38m.

Price	Departure	Arrival	Flight Time	Airline	Flight
from $56 Find flight	7:18 pm Denver Denver International	8:46 pm San Diego San Diego	2h 28m	United Airlines	UA540
from $138 Find flight	9:05 pm Denver Denver International	10:40 pm San Diego San Diego	2h 35m	United Airlines	UA486
from $196 Find flight	11:34 am Denver Denver International	1:11 pm San Diego San Diego	2h 37m	United Airlines	UA366
from $169 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 $175 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 $175 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 $207 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 $265 Find flight	7:05 pm Denver Denver International	0:14 am+1 день San Diego San Diego	6h 9m layover 1h 36m - San Francisco	United Airlines	UA2681 UA548
from $265 Find flight	6:00 am Denver Denver International	12:34 pm San Diego San Diego	7h 34m layover 3h 4m - San Francisco	United Airlines	UA573 UA1998
from $265 Find flight	5:50 pm Denver Denver International	0:14 am+1 день San Diego San Diego	7h 24m layover 2h 49m - San Francisco	United Airlines	UA1007 UA548

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*Departure and arrival times are local. Prices are for one-way flights. Information refreshed on 02/09/2025

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$196
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$207
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$169
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$175
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$265
6:00 am — 12:34 pm	6:00 am — 7:53 am UA573 United Airlines Denver — San Francisco 3h 4m stop 10:57 am — 12:34 pm UA1998 United Airlines San Francisco — San Diego	7h 34m including layover	Find flight from$265
7:05 pm — 0:14 am +1 day	7:05 pm — 8:59 pm UA2681 United Airlines Denver — San Francisco 1h 36m stop 10:35 pm — 0:14 am UA548 United Airlines San Francisco — San Diego	6h 9m including layover	Find flight from$265
7:18 pm — 8:46 pm	7:18 pm — 8:46 pm UA540 United Airlines Denver — San Diego	2h 28m	Find flight from$56
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$175
9:05 pm — 10:40 pm	9:05 pm — 10:40 pm UA486 United Airlines Denver — San Diego	2h 35m	Find flight from$138

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

*Departure and arrival times are local. Last updated on 02/09/2025

Flight Information

There are 3 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 11:34 am to 9:05 pm. Nonstop flight is 2h 28m. The time difference between Denver and San Diego is 1h.

The fastest flight 2h 28m
Average flight time 2h 35m
The earliest flight 11:34 am
The latest flight 9:05 pm
Distance 852 ml

The cheapest months for traveling to San Diego are february (from 56 $), december (from 101 $), january (from 126 $).

The most expensive and popular months are november (from 154 $), january (from 126 $), december (from 101 $).

The cheapest flight by United Airlines that our users were able to find is $56. This airfare is economy class on one-way UA540 flight for February 12, 2025 leaving Denver International in Denver at 7:18 pm, 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 Denver to San Diego:

Boeing 737-900

from $56

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

F9 - Frontier Airlines

from $70

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Connecting Flights

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

AS - Alaska Airlines

from $138

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F9 - Frontier Airlines

from $80

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AM - Aeromexico

from $737

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How to book an air ticket yourself?

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