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IAH to LGW: distance & flight time
Houston (George Bush Intercontinental Houston Airport) → London (London Gatwick Airport)
4,843 mi
7,795 km · 4,209 nm
9h 58m
estimated nonstop flight time
+6h
time difference · heading northeast
See live IAH→LGW fares Phone-only fares on this route — call free
Flight time details
4,843 miles nonstop takes roughly 9h 58m 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
- IAH — George Bush Intercontinental Houston Airport · Houston, 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 IAH
- DWH · David Wayne Hooks Memorial Airport14 mi away
- IWS · West Houston Airport23 mi away
- AAP · Andrau Airpark23 mi away
- HOU · William P Hobby Airport24 mi away
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 IAH from LGW?
The flight distance from Houston (IAH) to London (LGW) is 4,843 miles (7,795 km, 4,209 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IAH to LGW?
A nonstop flight takes about 9h 58m 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 Houston and London?
London is 6 hours ahead of Houston.
What is the cheapest way to fly from IAH to LGW?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IAH–LGW that never appear on search engines, with no booking fees.