starting at $238
starting at $136
starting at $275
starting at $133
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 Seattle 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 Seattle 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 Seattle — Denver route is served by a wide range of airlines: 4 in total, including Alaska Airlines, Frontier Airlines, Southwest Airlines, and United Airlines. Competition among carriers gives passengers the opportunity to find tickets at attractive fares — with prices starting from $133. Our service helps compare all available offers within seconds and choose the most convenient option. You can filter flights by price, departure time, or baggage rules to make your trip as comfortable as possible. With so many airlines, there’s always a chance to catch special promotions and save.
starting at $238
starting at $136
starting at $275
starting at $133
Seattle — Denver
06/02/2026
Departure
Direct flight
AS682
starting at $335
Seattle — Denver
06/08/2026
Departure
Direct flight
F93406
starting at $277
Seattle — Denver
06/26/2026
Departure
Direct flight
AS602
starting at $238
Seattle — Denver
06/06/2026
Departure
Direct flight
WN4845
starting at $275
Seattle — Denver
11/01/2026
Departure
Direct flight
AS310
starting at $239
There are most likely no direct flights on the Seattle — Denver route
The cheapest one-way flight from Seattle to Denver departs on 06/09/2026, is operated by United Airlines and costs $133
The cheapest roundtrip flight from Seattle to Denver departs on 07/12/2026, is operated by Frontier Airlines and costs $203
Fastest flight from Seattle to Denver takes
There are direct flights on this route 5 days a week: Su, Mo, Tu, Fr, and Sa
The distance between Seattle and Denver is 1641km (1017 miles). There are 35 direct flights from Seattle to Denver. The time difference between Seattle and Denver is 1h. Flights from Seattle begin at 5:00 AM. The latest flight from Seattle departs at 8:11 PM
We couldn't find any special offers for flights from Seattle to Denver
The cheapest flight ticket from Seattle to Denver according to data for the last 48 hours costs $133
Often the best time to buy tickets from Seattle to Denver is 2 months before departure.
Based on statistics over the past years, the lowest prices for flights from Seattle to Denver can be found flying in these months: June, October.
The fastest flights from Seattle to Denver start from 2 hours 43 minutes in the air.
The following airlines operate direct flights on the route Seattle — Denver: Alaska Airlines, Frontier Airlines, Southwest Airlines
The minimum one-way ticket price from Seattle to Denver is $131 (June 2026), while the maximum is $136 (October 2026). On average, a ticket costs $134–$136.