DENSEA
Denver (Denver International Airport) to Seattle (Seattle-Tacoma International Airport).
The flight from Denver (DEN) to Seattle (SEA) takes 2h 24m on average, covering about 1,117 miles. Across 4 flights we tracked, the fastest was 2h 23m and the slowest 2h 25m, with Southwest Airlines flying it most often.
Plan this routeAt a glance
- Avg flight time
- 2h 24m
- Distance
- 1,117 mi
- Fastest tracked
- 2h 23m
- Airlines
- 2
Airlines on this route
- Southwest Airlines75% of tracked flightsFlies it on: Boeing 737 MAX 8, Boeing 737-800
- Delta Air Lines25% of tracked flightsFlies it on: Airbus A220-300
Aircraft we tracked
Methodology: figures are aggregated from 4 real flights on this route tracked between 2026-05-28 and 2026-06-09, sourced from live flight data. Updated daily as new flights are observed.
Route FAQ
How long is the flight from DEN to SEA?
The DEN to SEA flight takes 2h 24m on average based on 4 tracked flights.
How far is DEN from SEA?
DEN to SEA is about 1,117 miles by air.
Which airlines fly from DEN to SEA?
Southwest Airlines, Delta Air Lines fly the DEN to SEA route in our route data.
What aircraft fly from DEN to SEA?
Aircraft observed or commonly scheduled on DEN to SEA include Boeing 737 MAX 8, Boeing 737-800, Airbus A220-300.