Nonstop flights from San Diego to Denver
4 airlines fly this route, with up to 19 flights a day.
When they leave
San Diego time16 in the morning, 6:20 AM to 11:45 AM, then 11 in the afternoon, 12:33 PM to 4:50 PM, then five in the evening, 5:20 PM to 8:01 PM.
Every flight
Earliest first
Schedules last checked Sep 19, 2026. Times are local.
Flying from San Diego to Denver
Southwest Airlines flies most often, 5 to 8 times a day on the Boeing 737, Boeing 737 MAX 8 and Boeing 737-700. United Airlines flies 5 to 6 times a day on the Airbus A321neo, Boeing 737 and Boeing 737 MAX 9. Alaska Airlines flies 3 times a day on the Boeing 737, Boeing 737 MAX 9 and Embraer 175. Frontier Airlines flies twice a day on the Airbus A320neo and Airbus A321.
Flights run every day of the week, from 15 on Tuesdays to 19 on Thursdays and Fridays. The first arrival in Denver is at 9:50 AM and the last at 11:30 PM. The flight covers 852 miles.
Flying back, Denver to San Diego has 125 nonstop flights a week.
Return flights
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Schedules as of Oct 9, 2026.