SeattletoDenverFlight Time
SEA–DEN · Nonstop
Seattle (Seattle-Tacoma International Airport) to Denver (Denver International Airport).
The nonstop flight from Seattle (SEA) to Denver (DEN) takes 2h 10m on average, covering about 1,022 miles. Across 6 flights we tracked, the fastest was 1h 58m and the slowest 2h 34m. The current schedule below is the better source for planned airline frequency.
Plan this routeAt a glance
| Avg flight time | Distance | Route type | Fastest tracked | Airlines |
|---|---|---|---|---|
| 2h 10m | 1,022 mi | Nonstop | 1h 58m | 3 |
Airlines on this route
Nonstop airlines from Seattle to Denver
United Airlines, Alaska Airlines, and Southwest Airlines operate 21-22/day flights from SEA to DEN.
- First departure
- 05:00
- Last departure
- 20:07
- Cadence
- ~every 30 min
- Scheduled departure times
- 46
| Airline | Captured daily freq. | Aircraft | Departures (local) |
|---|---|---|---|
| United Airlines | 6-7/day | Airbus A320 family, Boeing 737 · Seat map | 05:07 |
Aircraft we tracked
Flying the other way?
DEN to SEA flight time (3 tracked flights) →Flight times usually differ by direction — jet-stream winds make eastbound crossings faster than westbound ones.
Methodology: figures are aggregated from 6 real flights on this route, sourced from live flight data. Updated daily as new flights are observed.
Route FAQ
How long is the flight from Seattle to Denver?
The nonstop flight from Seattle (SEA) to Denver (DEN) takes 2h 10m on average. The fastest flight we have tracked took 1h 58m and the slowest 2h 34m.
How far is Seattle from Denver?
Seattle (SEA) to Denver (DEN) is about 1,022 miles by air.
Are there nonstop flights from Seattle to Denver?
Yes. United Airlines, Alaska Airlines, and Southwest Airlines fly nonstop from Seattle (SEA) to Denver (DEN), with 21-22/day departures.
Which airlines fly from Seattle to Denver?
United Airlines, Alaska Airlines, Southwest Airlines, Delta Air Lines, and Frontier Airlines fly nonstop from Seattle (SEA) to Denver (DEN).
What aircraft fly from Seattle to Denver?
The SEA–DEN route is flown with Airbus A220, Airbus A320 family, Boeing 737.