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IAD to LGW: distance & flight time
Washington (Washington Dulles International Airport) → London (London Gatwick Airport)
3,685 mi
5,931 km · 3,203 nm
7h 42m
estimated nonstop flight time
+5h
time difference · heading northeast
See live IAD→LGW fares Phone-only fares on this route — call free
Flight time details
3,685 miles nonstop takes roughly 7h 42m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 5-hour time gain when reading arrival times on your ticket.
The two airports
- IAD — Washington Dulles International Airport · Washington, United States
- LGW — London Gatwick Airport · London, United Kingdom
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 LGW
- LHR · London Heathrow Airport25 mi away
- KRH · Redhill Aerodrome5 mi away
- BQH · London Biggin Hill Airport16 mi away
- ESH · Shoreham Airport22 mi away
Frequently asked questions
How far is IAD from LGW?
The flight distance from Washington (IAD) to London (LGW) is 3,685 miles (5,931 km, 3,203 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IAD to LGW?
A nonstop flight takes about 7h 42m 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 London?
London is 5 hours ahead of Washington.
What is the cheapest way to fly from IAD to LGW?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IAD–LGW that never appear on search engines, with no booking fees.