San Diego (SAN) to Denver (DEN) flights
Nonstop from San Diego International to Denver International: distance, flying time, which airlines fly it and how often.
Distance
852 mi, great circle
Flying time
typical, gate to gate
Flights a day
average, November 2026
Airlines
passenger airlines
Airlines flying SAN to DEN
Route map
The shortest path over the Earth's surface. Actual tracks vary with winds and airspace. Map © OpenStreetMap contributors.
Cheapest recent fare
Fares found in recent searches load here. You can also compare SAN to DEN fares by month.
Both directions
Frequently asked questions
How long is the flight from San Diego to Denver?
About 2h 28m gate to gate for the 1,371 km (852 mile) trip, estimated from distance. Schedules vary by airline and season, and winds can add or save time.
Which airlines fly nonstop from SAN to DEN?
Alaska Airlines, Frontier Airlines, Southwest Airlines and United Airlines, with about 20 flights a day between them in our data (AeroDataBox, November 2026).