# Seattle to Denver flights

Page: https://www.routavio.com/flights/seattle-to-denver

## About this route

Explore the fares we observed from Seattle to Denver. Prices move often, so pick your dates to see the latest options.

- Route distance: 1,641 km
- Fastest observed flight time: 2h 30m
- Airlines seen: Alaska Airlines, Delta Air Lines, Frontier Airlines, United Airlines, Southwest Airlines
- Alternative airports: BFI, APA

- No recently checked fare for this route.

## Frequently asked

### How much is a flight from Seattle to Denver?

The lowest fare Routavio has observed is €72, found on 5 Nov 2026.

### Are there direct flights from Seattle to Denver?

Yes. Published schedules report non-stop flights on this route with Alaska Airlines, Delta Air Lines, Frontier Airlines, United Airlines, Southwest Airlines.

### Which airlines fly from Seattle to Denver?

Routavio has seen these carriers on the route: Alaska Airlines, Delta Air Lines, Frontier Airlines, United Airlines, Southwest Airlines.

### How long does the flight from Seattle to Denver take?

Across the 77 fares Routavio observed, the average journey time is 3h 17m, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.

### How many of the observed Seattle to Denver fares were non-stop?

73 of the 79 fares we observed were non-stop; the rest included at least one stop. That describes our observations, not every flight that operates.

Route data last updated by Routavio on 12 November 2026