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APA to SEA: distance & flight time
Denver (Centennial Airport) → Seattle (Seattle Tacoma International Airport)
1,027 mi
1,653 km · 892 nm
2h 42m
estimated nonstop flight time
-1h
time difference · heading northwest
See live APA→SEA fares Phone-only fares on this route — call free
Flight time details
1,027 miles nonstop takes roughly 2h 42m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- APA — Centennial Airport · Denver, United States
- SEA — Seattle Tacoma International Airport · Seattle, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near APA
- DEN · Denver International Airport22 mi away
- BFK · Buckley Air Force Base10 mi away
- BJC · Rocky Mountain Metropolitan Airport27 mi away
- WBU · Boulder Municipal Airport38 mi away
Near SEA
- RNT · Renton Municipal Airport5 mi away
- BFI · Boeing Field King County International Airport6 mi away
- TIW · Tacoma Narrows Airport18 mi away
- PWT · Bremerton National Airport21 mi away
Frequently asked questions
How far is APA from SEA?
The flight distance from Denver (APA) to Seattle (SEA) is 1,027 miles (1,653 km, 892 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from APA to SEA?
A nonstop flight takes about 2h 42m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Denver and Seattle?
Seattle is 1 hour behind Denver.
What is the cheapest way to fly from APA to SEA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on APA–SEA that never appear on search engines, with no booking fees.