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IAD to LAI: distance & flight time
Washington (Washington Dulles International Airport) → Lannion (Lannion-Côte de Granit Airport)
3,601 mi
5,795 km · 3,129 nm
7h 32m
estimated nonstop flight time
+6h
time difference · heading northeast
See live IAD→LAI fares Phone-only fares on this route — call free
Flight time details
3,601 miles nonstop takes roughly 7h 32m 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
- LAI — Lannion-Côte de Granit Airport · Lannion, France
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 LAI
- MXN · Morlaix-Ploujean Airport19 mi away
- SBK · Saint-Brieuc-Armor Airport32 mi away
- LDV · Landivisiau Air Base35 mi away
- BES · Brest Bretagne Airport48 mi away
Frequently asked questions
How far is IAD from LAI?
The flight distance from Washington (IAD) to Lannion (LAI) is 3,601 miles (5,795 km, 3,129 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IAD to LAI?
A nonstop flight takes about 7h 32m 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 Lannion?
Lannion is 6 hours ahead of Washington.
What is the cheapest way to fly from IAD to LAI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IAD–LAI that never appear on search engines, with no booking fees.