Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from Denver to San Diego. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.
We carefully collect statistics on the search and pricing of airlines and, based on these data, we make an assumption about future prices. Thus, you can better understand which season is the cheapest to fly from Denver to San Diego
A non-stop flight is the most convenient and comfortable way to fly from Denver to San Diego, despite the fact that sometimes flights with transfers can cost significantly less.
•
•
•
•
•
•
Answers to questions about the route that travelers are most interested in.
We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.
Flights from Denver to San Diego are operated by several airlines — Southwest Airlines, United Airlines, and Frontier Airlines. This allows passengers to flexibly choose flights based on departure time, cost, and additional services. The minimum ticket price starts at $67, making this destination accessible to travelers with different budgets. We help compare all available options in real time, so you can book tickets at the best value for money. The service ensures transparent search and lets you book affordable flights in just a few clicks.
Denver — San Diego
10/17/2026
Departure
Direct flight
WN1756
starting at $172
Denver — San Diego
10/26/2026
Departure
Direct flight
UA2395
starting at $232
There are most likely no direct flights on the Denver — San Diego route
The cheapest flight ticket from Denver to San Diego according to data for the last 48 hours costs $67
Often the best time to buy tickets from Denver to San Diego is 2 months before departure.
Based on statistics over the past years, the lowest prices for flights from Denver to San Diego can be found flying in these months: October.
The fastest flights from Denver to San Diego start from 2 hours 27 minutes in the air.
The following airlines operate direct flights on the route Denver — San Diego: Southwest Airlines, United Airlines
The cheapest one-way flight from Denver to San Diego departs on 10/26/2026, is operated by Frontier Airlines and costs $67
There is no information about the cheapest roundtrip flight from Denver to San Diego
Fastest flight from Denver to San Diego takes 2h 27m
All airports
There are direct flights on this route 2 days a week: Mo and Sa
The distance between Denver and San Diego is 1340km (831 miles). There are 158 direct flights from Denver to San Diego. The time difference between Denver and San Diego is 1h. Flights from Denver begin at 6:20 AM. The latest flight from Denver departs at 10:29 PM
We couldn't find any special offers for flights from Denver to San Diego