- Cheapest roundtrip flight
- from€248
- Fastest flight
- non-stop flights
- 114x / week
- Flight distance
- 1,373 km
- Time difference
- Most popular airlines
- United Airlines
- Southwest Airlines
- Alaska Airlines
- Frontier Airlines
- United Airlines
Flight schedule from Denver (DEN) to San Diego (SAN)
Select a travel date in the flight schedule for the route from Denver (DEN) to San Diego (SAN) and compare affordable flight deals.
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Matching outbound flights59 of 59
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- Aug 30 – Sep 5, 2026
- September 6 – 12, 2026
- September 13 – 19, 2026
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Tips and tricks to help you find cheap flights from Denver to San Diego
Favorite airline: Frontier Airlines
65 % of flights from Denver to San Diego are booked with Frontier Airlines.
Frontier Airlines
65 %
United Airlines
29 %
Sun Country Airlines
6 %
Important flight information
Frequently Asked Questions (FAQ)
How long is the flight from Denver to San Diego?
A nonstop flight from Denver to San Diego typically takes around 2 hours 25 minutes. If you choose a connecting flight, allow more travel time. Typical one-stop itineraries take around 19 hours 2 minutes. For the quickest trip, a nonstop flight is usually the most comfortable choice.
Are there nonstop flights from Denver to San Diego?
Yes, there are nonstop flights from Denver to San Diego, averaging around 16 to 17 flights per day, operated by, among others, United Airlines, Southwest and Alaska Airlines. If you want to fly without a layover, it is worth filtering specifically for nonstop flights when searching.
Which airlines fly from Denver to San Diego?
Direct flights from Denver to San Diego are operated by, among others, United Airlines, Southwest and Alaska Airlines. Connecting flights with one stop are also available, for example with JetBlue Airways (via New York). If travel time matters to you, a direct flight is usually the most convenient option. Connecting flights often give you more choice of departure times and airlines.
On which days are there nonstop flights from Denver to San Diego?
Nonstop flights from Denver to San Diego operate daily. The schedule may vary by season, so it is worth comparing several travel dates. If your preferred day does not have a nonstop flight, nearby departure days or short connecting flights may be a good alternative.
How many flights are there per day from Denver to San Diego?
From Denver to San Diego, there are on average around 16 to 17 flights per day. This usually means you have a good choice of departure times. If you are flexible, you can easily compare times, prices, and airlines.
How many flights per week are there from Denver to San Diego?
From Denver to San Diego, there are around 114 to 115 flights per week. This means you usually have connections available on several days and at various times. Beyond the price, it is worth comparing flight duration, airline, and any potential additional fees.
When does the first flight from Denver to San Diego depart?
The earliest nonstop flight from Denver to San Diego usually departs at 5:35 AM. The exact departure time may vary by day of the week and airline. Early flights are especially useful if you want to make the most of your arrival day in San Diego.
When does the last flight from Denver to San Diego depart?
The last nonstop flight from Denver to San Diego usually departs at 10:40 PM. Late flights can be convenient if you want to travel after work or in the evening. Do check whether it is a nonstop flight, as a connecting itinerary could push the arrival time significantly later.