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IAD to DCU: distance & flight time
Washington (Washington Dulles International Airport) → Decatur (Pryor Field Regional Airport)
603 mi
970 km · 524 nm
1h 47m
estimated nonstop flight time
—
time difference · heading southwest
See live IAD→DCU fares Phone-only fares on this route — call free
Flight time details
603 miles nonstop takes roughly 1h 47m gate to gate, flying southwest. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- IAD — Washington Dulles International Airport · Washington, United States
- DCU — Pryor Field Regional Airport · Decatur, 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 IAD
Near DCU
- HSV · Huntsville International Carl T Jones Field10 mi away
- HUA · Redstone Army Air Field15 mi away
- MSL · Northwest Alabama Regional Airport38 mi away
- GAD · Northeast Alabama Regional Airport68 mi away
Frequently asked questions
How far is IAD from DCU?
The flight distance from Washington (IAD) to Decatur (DCU) is 603 miles (970 km, 524 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IAD to DCU?
A nonstop flight takes about 1h 47m 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 cheapest way to fly from IAD to DCU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IAD–DCU that never appear on search engines, with no booking fees.