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IAD to PRG: distance & flight time
Washington (Washington Dulles International Airport) → Prague (Václav Havel Airport Prague)
4,294 mi
6,910 km · 3,731 nm
8h 53m
estimated nonstop flight time
+6h
time difference · heading northeast
See live IAD→PRG fares Phone-only fares on this route — call free
Flight time details
4,294 miles nonstop takes roughly 8h 53m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time gain when reading arrival times on your ticket.
The two airports
- IAD — Washington Dulles International Airport · Washington, United States
- PRG — Václav Havel Airport Prague · Prague, Czech Republic
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 PRG
- VOD · Vodochody Airport10 mi away
- KLV · Karlovy Vary International Airport60 mi away
- PED · Pardubice Airport66 mi away
- DRS · Dresden Airport75 mi away
Frequently asked questions
How far is IAD from PRG?
The flight distance from Washington (IAD) to Prague (PRG) is 4,294 miles (6,910 km, 3,731 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IAD to PRG?
A nonstop flight takes about 8h 53m 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 Washington and Prague?
Prague is 6 hours ahead of Washington.
What is the cheapest way to fly from IAD to PRG?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IAD–PRG that never appear on search engines, with no booking fees.