Need help booking?
Unpublished phone-only deals available
LGG to IAD: distance & flight time
Liege (Liège Airport) → Washington (Washington Dulles International Airport)
3,927 mi
6,321 km · 3,413 nm
8h 10m
estimated nonstop flight time
-6h
time difference · heading northwest
See live LGG→IAD fares Phone-only fares on this route — call free
Flight time details
3,927 miles nonstop takes roughly 8h 10m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time set-back when reading arrival times on your ticket.
The two airports
- LGG — Liège Airport · Liege, Belgium
- 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 LGG
- MST · Maastricht Aachen Airport24 mi away
- GKE · Geilenkirchen Air Base34 mi away
- AAH · Aachen-Merzbrück Airport35 mi away
- CRL · Brussels South Charleroi Airport45 mi away
Frequently asked questions
How far is LGG from IAD?
The flight distance from Liege (LGG) to Washington (IAD) is 3,927 miles (6,321 km, 3,413 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from LGG to IAD?
A nonstop flight takes about 8h 10m 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 Liege and Washington?
Washington is 6 hours behind Liege.
What is the cheapest way to fly from LGG to IAD?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on LGG–IAD that never appear on search engines, with no booking fees.