Compare airlines, prices, and flight durations for your trip
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 direct flight is the easiest way to get to your destination. The following airlines operate non-stop flights from San Diego to Denver:
•
•
•
•
•
•
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.
We couldn't find any special offers for flights from San Diego to Denver
Unable to find information about the schedule of direct flights from
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.
San Diego — Denver
02/02/2026
Departure
Direct flight
UA1337
starting at $153
San Diego — Denver
02/09/2026
Departure
Direct flight
F94928
starting at $182
San Diego — Denver
02/10/2026
Departure
Direct flight
F92818
starting at $110
San Diego — Denver
03/18/2026
Departure
Direct flight
AS1479
starting at $57
San Diego — Denver
03/19/2026
Departure
Direct flight
UA519
starting at $145
San Diego — Denver
03/19/2026
Departure
Direct flight
UA1714
starting at $181
The route San Diego — Denver is served by several airlines: United 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 $26 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.
The cheapest one-way flight from San Diego to Denver departs on 03/17/2026, is operated by Frontier Airlines and costs $26
The cheapest roundtrip flight from San Diego to Denver departs on 04/09/2026, is operated by Frontier Airlines and costs $55
Fastest flight from San Diego to Denver takes 2h 29m
There are direct flights on this route 4 days a week: Mo, Tu, We, and Th
The distance between San Diego and Denver is 1340km (831 miles). There are 40 direct flights from San Diego to Denver. The time difference between San Diego and Denver is 1h. Flights from San Diego begin at 6:15 AM. The latest flight from San Diego departs at 8:45 PM
The cheapest flight ticket from San Diego to Denver according to data for the last 48 hours costs $26
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: March, February.
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: United Airlines, Frontier Airlines, Alaska Airlines
The minimum one-way ticket price from San Diego to Denver is $26 (March 2026), while the maximum is $107 (February 2026). On average, a ticket costs $66–$107.