Need help booking?
Unpublished phone-only deals available
APA to IAD: distance & flight time
Denver (Centennial Airport) → Washington (Washington Dulles International Airport)
1,460 mi
2,350 km · 1,269 nm
3h 38m
estimated nonstop flight time
+2h
time difference · heading east
See live APA→IAD fares Phone-only fares on this route — call free
Flight time details
1,460 miles nonstop takes roughly 3h 38m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time gain when reading arrival times on your ticket.
The two airports
- APA — Centennial Airport · Denver, United States
- IAD — Washington Dulles International Airport · Washington, 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
Frequently asked questions
How far is APA from IAD?
The flight distance from Denver (APA) to Washington (IAD) is 1,460 miles (2,350 km, 1,269 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from APA to IAD?
A nonstop flight takes about 3h 38m 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 Washington?
Washington is 2 hours ahead of Denver.
What is the cheapest way to fly from APA to IAD?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on APA–IAD that never appear on search engines, with no booking fees.