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 San Diego to Denver. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.
A non-stop flight is the most convenient and comfortable way to fly from San Diego to Denver, despite the fact that sometimes flights with transfers can cost significantly less.
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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.
The cheapest one-way flight from San Diego to Denver departs on 09/29/2026, is operated by Frontier Airlines and costs $57
The cheapest roundtrip flight from San Diego to Denver departs on 12/27/2026, is operated by Alaska Airlines and costs $337
Fastest flight from San Diego to Denver takes 2h 29m
There are direct flights on this route 2 days a week: Mo and Tu
The distance between San Diego and Denver is 1340km (831 miles). The time difference between San Diego and Denver is 1h
The route San Diego — Denver is served by several airlines: Frontier Airlines and Alaska Airlines. This gives passengers more freedom in choosing flights. You can consider not only the price but also schedules, baggage policies, and onboard service. Our service compares all offers so you can find tickets from $57 and choose the most convenient option. Thanks to airline competition, you may also find promotional fares or special offers, helping you save even more. Plan your trip in advance and choose the best flights without overpaying.
starting at $57
starting at $100
San Diego — Denver
09/28/2026
Departure
Direct flight
F92422
starting at $152
San Diego — Denver
09/29/2026
Departure
Direct flight
AS3029
starting at $160
There are most likely no direct flights on the San Diego — Denver route
We couldn't find any special offers for flights from San Diego to Denver
The cheapest flight ticket from San Diego to Denver according to data for the last 48 hours costs $57
Often the best time to buy tickets from San Diego to Denver is 2 months before departure.
Based on statistics over the past years, the lowest prices for flights from San Diego to Denver can be found flying in these months: September.
The fastest flights from San Diego to Denver start from 2 hours 29 minutes in the air.
The following airlines operate direct flights on the route San Diego — Denver: Frontier Airlines, Alaska Airlines
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 San Diego to Denver