The cheapest times to fly from DEN to SAN are
- January 1st to March 4th (except the week of February 12th)
- August 6th to November 18th
- December 3rd to December 16th
based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from DEN to SAN is early to mid September. Prices can be as high as $669 for Sunday flights during mid March, or as low as $134 for Tuesday flights around early to mid September.
When to Fly to San Diego
Flying from Denver, CO (DEN) to San Diego, CA (SAN) will usually cost between $158 to $423 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early to mid September with an average ticket price of $161. Due to high demand the most expensive time to fly is mid March, with an average price of $389. Planning your trip to low-cost times can easily save you $228 on economy flights and even more on first-class flights. Generally, any price below $251 can be considered a good price for a round-trip DEN to SAN flight.
See below for a graph of average weekly prices for the DEN to SAN route. All prices are for round-trip tickets in USD.
Compared to other flights, the DEN to SAN flight is much cheaper than the average and costs much less than the average flight leaving from Denver. The average price per mile (for a direct flight) is $0.18, which is below average.
Flight Prices by Day of the Week
Tuesday is usually the cheapest day to depart and return on this flight. Sundays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $110 (35%) on this flight.
Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $207. Return trip prices are from the SAN to DEN flight, and often highlight the quality of our data in showing the same trend.
Departing Prices by Day
Return Trip Prices by Day
Nonstop Flights and Layovers
Travelers looking to fly from DEN to SAN can generally find a 0-layover flight. Because there is a direct flight option the real-world direct flight time of 2 hour 31 minutes may be realistic.
Alternative Nearby Airports
Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is a nonstop flight from DEN to SAN while comparing.
- 109 miles (175 km) away from SAN
- Usually 15.54% less expensive than SAN
- Nonstop flights available
Flight Questions Answered
Still have questions about flying from DEN to SAN? We’ve got answers.
Which airlines fly this route?
You can find 10 major airlines flying this route most often: Alaska, American, China Eastern, Delta, Emirates, Frontier, Singapore Airlines, Southwest, Spirit, United, and potentially more during busy seasons.
How far away is it from San Diego International Airport to Denver International Airport?
The distance between the two airports is roughly 852 miles or 1371 kilometers.
How long does it take to fly from DEN to SAN?
The real-world flight time for a nonstop DEN to SAN flight is about 2 hour 31 minutes.
How many flights go between Denver, CO and San Diego, CA?
It depends on the day of the week and the date, but a typical day might have around 76 available flights from DEN to SAN.
Airport Location Info
|Origination airport name||Denver International Airport|
|Country||the United States|
|Destination airport name||San Diego International Airport|
|City||San Diego, CA|
|Country||the United States|
Late and Early Flight Data
Flights from DEN to SAN tend to depart later than the average flight. According to our recently updated data, 35% of flights departed 5 or more minutes late, and 11% of flights left 5 or more minutes early. On average you can expect to leave SAN heading for DEN about 16 minutes late. This does significantly impact arrival time, as the average landing time in San Diego, CA is about 10 minutes late. The numbers below show a recent average of take-off times versus the scheduled departure flight:
- Southwest: 17 minutes late
- United: 13 minutes late
- Frontier: 19 minutes late
- Some airlines not reporting
Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.