Cheap Flights from San Diego, CA to Denver, CO from $104

One way Round trip

Adults

Children under 12

Infants under 2 without place

Economy

Business

First

done

Return flight: Denver – San Diego

Page navigation

Price Calendar Cheap Flights Flights Schedule

On Cheapflightsplus.com you will find 4 direct and 31 connecting flights from San Diego to Denver. You can compare airfare deals from 6 airlines and multiple travel sites from $104, 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

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $104 (one-way), $178 (round-trip).

Direct flights

Check to choose departure date Check to choose departure date

Check prices for return flight

Find flights

Best Flights from San Diego to Denver Today

Take a look at the list of non stop flights and flights with layovers from San Diego to Denver with the lowest price of $104. The fastest direct flight takes 2h 28m and the fastest connecting – 5h 51m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $104 Find flight	06:45 San Diego San Diego	10:13 Denver Denver International	2h 28m	United Airlines	UA2270
from $130 Find flight	12:45 San Diego San Diego	16:13 Denver Denver International	2h 28m	United Airlines	UA1220
from $153 Find flight	13:50 San Diego San Diego	22:39 Denver Denver International	7h 49m layover 3h 35m - San Francisco	United Airlines	UA1763 UA1230
from $162 Find flight	21:30 San Diego San Diego	10:15+1 день Denver Denver International	11h 45m layover 8h 18m - Phoenix	Frontier Airlines	F91572 F91376

Show all tickets

*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on September 15, 2025

Flight Schedule San Diego (California) to Denver (Colorado)

Full flight schedule will help you in detecting at what time planes fly from San Diego to Denver. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.

Departure	Flight Details	Flight Duration	Price
06:20 — 15:00	06:20 — 07:58 UA1986 United Airlines San Diego — San Francisco 3h 19m stop 11:17 — 15:00 UA1374 United Airlines San Francisco — Denver	7h 40m including layover	Find flight from$248
06:45 — 10:13	06:45 — 10:13 UA2270 United Airlines San Diego — Denver	2h 28m	Find flight from$104
08:00 — 15:00	07:50 — 09:27 UA2863 United Airlines San Diego — San Francisco 1h 39m stop 11:17 — 15:00 UA1374 United Airlines San Francisco — Denver	6h including layover	Find flight from$222
08:45 — 12:13	08:45 — 12:13 UA2476 United Airlines San Diego — Denver	2h 28m	Find flight from$104
09:45 — 18:13	09:42 — 11:20 UA305 United Airlines San Diego — San Francisco 3h 7m stop 14:27 — 18:10 UA1702 United Airlines San Francisco — Denver	7h 28m including layover	Find flight from$197
10:43 — 19:33	10:43 — 12:20 UA2855 United Airlines San Diego — San Francisco 3h 30m stop 15:50 — 19:33 UA566 United Airlines San Francisco — Denver	7h 50m including layover	Find flight from$153
12:45 — 16:13	12:45 — 16:13 UA1220 United Airlines San Diego — Denver	2h 28m	Find flight from$130
13:50 — 22:39	13:30 — 15:08 UA1763 United Airlines San Diego — San Francisco 3h 35m stop 19:05 — 22:41 UA1230 United Airlines San Francisco — Denver	7h 49m including layover	Find flight from$153
15:35 — 23:59	15:35 — 18:31 AS1135 Alaska Airlines San Diego — Seattle 1h 46m stop 20:17 — 23:59 AS642 Alaska Airlines Seattle — Denver	7h 24m including layover	Find flight from$171
16:00 — 00:48 +1 day	16:00 — 17:38 UA2117 United Airlines San Diego — San Francisco 3h 37m stop 21:15 — 00:48 UA1317 United Airlines San Francisco — Denver	7h 48m including layover	Find flight from$167
17:50 — 00:48 +1 day	17:50 — 19:28 UA1871 United Airlines San Diego — San Francisco 1h 47m stop 21:15 — 00:48 UA1317 United Airlines San Francisco — Denver	5h 58m including layover	Find flight from$154
19:01 — 22:29	19:01 — 22:29 UA519 United Airlines San Diego — Denver	2h 28m	Find flight from$104
19:01 — 08:27 +1 day	19:01 — 20:26 NK1997 Spirit Airlines San Diego — Las Vegas 4h 33m stop 00:59 — 05:54 F91650 Frontier Airlines Las Vegas — Dallas 1h 21m stop 07:15 — 08:27 F92147 Frontier Airlines Dallas — Denver	12h 26m including layover	Find flight from$241
19:01 — 04:00 +1 day	19:01 — 20:26 NK1997 Spirit Airlines San Diego — Las Vegas 4h 33m stop 00:59 — 04:00 F91994 Frontier Airlines Las Vegas — Denver	7h 59m including layover	Find flight from$253
21:30 — 10:15 +1 day	21:30 — 23:00 F91572 Frontier Airlines San Diego — Phoenix 8h 18m stop 07:18 — 10:15 F91376 Frontier Airlines Phoenix — Denver	11h 45m including layover	Find flight from$162

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

*Departure and arrival times - local. Updated on September 15, 2025

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 22:30 from 11 San Diego airport and arrive 06:15 to 22:30 to 2 Denver airports. Average flight time is 2h 28m.

The fastest flight 2h 28m
Average flight time 2h 28m
The earliest flight 06:15
The latest flight 22:30
Distance 852 ml

The cheapest months to travel to Denver are september (from 104 $), october (from 107 $), august (from 109 $).

The most expensive months are may (from 161 $), february (from 161 $), june (from 145 $).

What is the lowest airfare San Diego to Denver?

The cheapest plane ticket found by our users is $104. This airfare is for economy class on one-way UA2270 flight by United Airlines for September 27, 2025 which leaves San Diego in San Diego at 06:45 am and arrives at Denver Denver International at 10:13.

Economy class

$104

Find

Business class

Find

First class

Find

Popular Airlines on the Route

The flight San Diego — Denver is served by 6 regular airlines and 2 low-cost airlines. Most of the flights on this route are operated by Alaska Airlines - 1 departures per week at the price of from $ 171 . And the most expensive tickets are offered by United Airlines airline - from $ 1410.

Direct flights

There are 4 nonstop flights on the route. The fastest direct flight is UA2270 by United Airlines takes 2h 28m and the cheapest is UA2270 by United Airlines for $104.

UA - United Airlines

from $104

Find

See more direct flights

Connecting Flights

There are 31 flights with layovers on the route. The fastest connecting flight is UA305 by United Airlines takes 5h 51m and the cheapest is UA2270 by United Airlines for $153.

AS - Alaska Airlines

from $171

Find
F9 - Frontier Airlines

from $162

Find
HA - Hawaiian Airlines

from $334

Find
UA - United Airlines

from $153

Find
AM - Aeromexico

from $614

Find
NK - Spirit Airlines

from $241

Find

See more connecting flights

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-SAN

from $104
Find
San Diego Regional-USA

Find
Gillespie Field-SEE

Find
Golden Triangle Reg.-GTR

Find
El Cajon-CJN

Find
Lowndes County-UBS

Find
Miramar NAS-NKX

Find
Montgomery Field-MYF

Find
North Island NAS-NZY

Find
Brown Field Municipal-SDM

Find
AFB-CBM

Find

Denver airports

Denver International-DEN

Find
Arapahoe Co-APA

Find

Airplanes

There are flights to Denver from San Diego by 6 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.

San Diego — Las Vegas

from $67

Find
San Diego — Seattle

from $56

Find
San Diego — New York

from $68

Find
San Diego — San Francisco

from $54

Find
San Diego — Denver

from $64

Find
San Diego — Phoenix

from $71

Find
San Diego — Chicago

from $57

Find
San Diego — Sacramento

from $76

Find
San Diego — Dallas

from $70

Find
San Diego — Boston

from $76

Find

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.

San Diego — San Jose

from $65

Find
San Diego — London

from $66

Find
San Diego — Vancouver

from $79

Find
San Diego — Tokyo

from $72

Find
San Diego — Cancun

from $72

Find
San Diego — Paris

from $79

Find
San Diego — Toronto

from $68

Find
San Diego — Rome

from $54

Find
San Diego — Madrid

from $65

Find
San Diego — Calgary

from $60

Find

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.
To find a plane ticket, please select dates.