Outbound
2 hours 25 minutes
Return
2 hours 35 minutes
Daily Flights
8+
Airlines
3
Timezone note
San Diego is 1 hour behind Denver (Pacific vs Mountain Time).
About this route
Denver to San Diego flights
Denver to San Diego connects the Mile High City with Southern California's coastal gem. The route is popular with beach vacationers, military families (San Diego hosts major Navy and Marine installations), and biotech professionals. Southwest leads on frequency, with United and Frontier rounding out nonstop options.
San Diego's single-runway airport (SAN) is one of the most constrained in the country, and arrival sequencing delays are common during peak hours. The approach over downtown San Diego is one of the most scenic in domestic aviation. Landing alerts help travelers navigate SAN's compact terminal and curbside pickup efficiently.
Airlines
Airlines on this route
How it works
Track Denver to San Diego.
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FAQ
Frequently asked questions.
How long is the Denver to San Diego flight?
About 2 hours 25 minutes westbound and 2 hours 35 minutes on the return.
Which airlines fly DEN to SAN?
Southwest, United, and Frontier all operate nonstop flights.
Does SAN's single runway cause delays?
Yes, San Diego's single-runway operations can create arrival sequencing delays. Landing alerts track actual gate arrival.
Know when they land in San Diego
Avoid waiting at arrivals. Get a text the moment their Denver to San Diego flight touches down.
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Aviation lover who built SkyText because families deserve to know when someone lands safely. Has tracked more flights than he'd like to admit.