Compare Cheap Flights from San Diego to Denver

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Round Trip Flights from San Diego to Denver

09 Sep
SAN
23 Sep
DEN
$ 69.97
04 Oct
SAN
08 Oct
DEN
$ 111.6
04 Oct
SAN
08 Oct
DEN
$ 114.27
04 Oct
SAN
08 Oct
DEN
$ 152.44
09 Sep
SAN
23 Sep
DEN
$ 158.36
01 Sep
SAN
05 Sep
DEN
$ 414.76
*Note: All fares are quoted in USD.

Last updated on Friday 08/15/2025 at 05:00 AM, the fares mentioned above are for flight tickets and inclusive of fuel surcharges, service fee and taxes. Based on historical data, these fares are subject to change without prior notice and cannot be guaranteed at the time of booking. Kindly go through our terms and conditions before booking.

Book San Diego To Denver Flights

Do you know a city that sits just one mile above sea level? Denver- The Mile High City is exactly one mile high from the 13th step on the west side of the State Capitol Building.  Many other facts make it an intriguing city to explore. Denver has 300 days of sunshine in a year, it sits close to the foothills of the Rocky Mountains, and overlooks more than 200 named peaks. 

The city is full of parks and gardens (20,000 acres), while 14,000 acres of lush land outside Denver add more to the greenery around. Travelers can hike up the hills and mountains, or add on adventures like mountain biking or skiing, and snowboarding. Places such as Red Rocks Park and Amphitheatre, Washington Park, Stranahan's Whiskey Distillery & Cocktail Bar, and Denver Botanic Gardens are a few attractions that are a must-visit.

For those planning a vacation from San Diego, you can book cheap flights to Denver online. Usually, the city experiences extremely hot summers from June to September. However, this is also the time for long scenic drives, festivities, and wine-tasting tours. This means lights from San Diego to Denver can be expensive. Similarly, winters from December to February offer pleasant weather for a relaxing vacation; however, the fares for SAN to DEV flight tickets are comparatively cheaper. To specify the months, November and March are the best times to get cheap flights from San Diego to Denver (SAN to DEN). Denver International Airport, which is also one of the largest airports in the US, serves Denver, offering frequent connections from San Diego International Airport. You can compare SAN to DEN flight fares online with Packedbag and save on your flight expenses. For more, call us anytime. Our team is here to assist you 24x7.
 

Finding Cheap Flights From San Diego To Denver : Frequently Asked Questions

* The mentioned flight facts are based on the last 3 months' data. Information regarding the highest and lowest booking months is based on the last 12 months' data.

Major Carriers Operating Flights From San Diego To Denver
Airline Cheapest Average

ALASKA AIRLINES $111 $279

UNITED AIRLINES $103 $261

FRONTIER AIRLINES $69 $130

Low Cost Carriers Operating Flights From San Diego To Denver
Airline Cheapest Average

FRONTIER AIRLINES $69 $130

AMERICAN AIRLINES $79 $254

UNITED AIRLINES $103 $261