Washington to Dulles
28m The flight from Ronald Reagan Washington National Airport (DCA) to Washington Dulles International Airport (IAD) covers 38 km (23 miles) and takes approximately 28m gate to gate for a typical jet.
The route heads west on an initial great-circle bearing of 286°, passing near 38.9° N, 77.2° W at its midpoint.
The route
The great-circle path — the shortest line between the two airports across the curve of the earth. On a flat map it looks bent; on a globe it is straight.
Flight time at different cruise speeds
Aircraft type, winds and routing all move the real number. This is the same distance flown at different speeds, plus the 25-minute ground and climb allowance.
| Typical of | Cruise speed | Airborne | Gate to gate |
|---|---|---|---|
| Turboprop / regional | 550 km/h | 4m | 29m |
| Narrowbody jet (A320, 737) | 780 km/h | 3m | 28m |
| Widebody jet (777, 787, A350) | 900 km/h | 3m | 28m |
| Private jet (Gulfstream) | 850 km/h | 3m | 28m |
Headwinds on an eastbound long-haul routinely add 30–60 minutes; the same route westbound can be quicker. Airlines publish schedules with padding built in.
Both airports
| DCA | IAD | |
|---|---|---|
| Airport | Ronald Reagan Washington National Airport | Washington Dulles International Airport |
| City | Washington | Dulles |
| Country | United States | United States |
| ICAO | KDCA | KIAD |
| Coordinates | 38.8521, -77.0377 | 38.9445, -77.4558 |
| Elevation | 15 ft | 312 ft |
Questions
How long is the flight from Washington to Dulles?
A non-stop flight from Washington (DCA) to Dulles (IAD) takes about 28m. The great-circle distance is 38 km (23 miles, 20 nautical miles), flying west on an initial bearing of 286°.
How far is Washington from Dulles?
38 kilometres in a straight line over the earth's surface — 23 miles or 20 nautical miles. Actual flown distance is usually 2–5% longer because aircraft follow airways, avoid weather and route around restricted airspace.
Is there a non-stop flight between DCA and IAD?
This page calculates the direct-line time and distance; it does not track airline schedules. At 38 km the route is comfortably within range of a non-stop service if an airline chooses to fly it. Check an airline or booking site for what is actually scheduled.
Airport coordinates from OurAirports (public domain). Distance is a great-circle calculation; flight time uses the model described on the method page. Flight times are great-circle estimates for planning only — always check the airline's published schedule.