Cheap flights from San Diego, CA to Denver, CO

Flights starting at £32. Choose between Frontier Airlines, United Airlines, or Spirit Airlines to find the best price.

Make your travel wishlist, we'll do the rest
Hidden deals
Effortless booking
Travel hacking
Travelers usually depart from San Diego International, San Diego, CA - Old Town, San Diego, CA - La Jolla, McClellan–Palomar, or San Diego, CA - Seaport Village when they travel from San Diego to Denver. Book your trip to arrive at Denver International, or Rocky Mountain Metropolitan Airport. The distance between San Diego and Denver is 1372 km. The most popular airlines for this route are Frontier Airlines, United Airlines, Spirit Airlines, and Alaska Airlines. San Diego and Denver have 156 direct flights per week.

Weekly direct flights

Discover the top airlines offering direct flights from San Diego to Denver in the next month. You’ll find the number of daily direct flights per airline in the table.

Weekly direct flights for Mon 11.03 - Sun 17.03

AirlineMon 11.03Tue 12.03Wed 13.03Thu 14.03Fri 15.03Sat 16.03Sun 17.03
2---56---------
2222122

Weekly direct flights for Mon 18.03 - Sun 24.03

AirlineMon 18.03Tue 19.03Wed 20.03Thu 21.03Fri 22.03Sat 23.03Sun 24.03
6436666
2223223

Weekly direct flights for Mon 25.03 - Sun 31.03

AirlineMon 25.03Tue 26.03Wed 27.03Thu 28.03Fri 29.03Sat 30.03Sun 31.03
6555545
2323223

Weekly direct flights for Mon 01.04 - Sun 07.04

AirlineMon 01.04Tue 02.04Wed 03.04Thu 04.04Fri 05.04Sat 06.04Sun 07.04
6566656
2423223

Check-in for a flight from San Diego to Denver

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
Frontier AirlinesFFTF9NoOpens 24 days before flight
Closes 1 hours before flight
United AirlinesUALUAYesNo
Spirit AirlinesNKSNKNoOpens 24 days before flight
Closes 1 hours before flight
Alaska AirlinesASAASNoOpens 24 days before flight
Closes 1 hours before flight

Denver travel tips

1) Avoid the Highlands and the Cap Hill when riding a bike in Denver
2) Rent a bike in Denver and ride around Sloan Lake
3) When walking in Denver keep your ice to the 7-meters-high dairy jug

Weather in Denver

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January4°C-6°C
February4°C-6°C
March10°C-2°C
April13°C1°C
May18°C6°C
June26°C12°C
July29°C16°C
August28°C15°C
September25°C11°C
October17°C4°C
November10°C-1°C
December4°C-6°C
Hottest Month
29°C
July
Coldest month
-6°C
January
Sunny days
260
days per year
Snow days
26
days per year

14 day forecast

Thursday
14 Mar
99%
0°C0°C
21 Mar
18°C7°C
Friday
15 Mar
85%
2°C0°C
22 Mar
76%
11°C7°C
Saturday
16 Mar
84%
4°C-3°C
23 Mar
18°C6°C
Sunday
17 Mar
87%
7°C2°C
24 Mar
60%
20°C9°C
Monday
18 Mar
13°C1°C
25 Mar
88%
14°C7°C
Tuesday
19 Mar
16°C4°C
26 Mar
72%
12°C7°C
Wednesday
20 Mar
16°C6°C
27 Mar
10°C5°C

Frequently asked questions

How long does it take to travel from San Diego to Denver?
What is the flight distance between San Diego and Denver?
What airlines offer nonstop (direct) flights between San Diego and Denver?
What are the most popular routes to and from San Diego?
What are the most popular routes to and from Denver?
Which airports are there in San Diego?
What airports are near San Diego?
What airports are near Denver?
Is it possible to combine flights, buses, and trains in one itinerary when traveling between San Diego and Denver?
What is Virtual Interlining and how do I use it?
Which airlines fly between San Diego and Denver?
When's the best time to travel between San Diego and Denver?
What flights operate between San Diego and Denver?
How many airports are there near San Diego?
How many airports are there near Denver?
What time do nonstop (direct) flights between San Diego and Denver depart?
What time do nonstop (direct) flights between San Diego and Denver arrive?
What time do flights between San Diego and Denver depart?
What time do flights between San Diego and Denver arrive?
Find the best connection from San Diego to Denver
Search flights, trains & buses
We hack the system,
you fly for less