Great-circle route IAH → LHR. Faint dots are other airports, for geographic context. Download this map — free to reuse with a link back to this page.
The flight time from Houston to London is approximately 9h 48m nonstop. The distance is 4,824 miles (7,763 km). There are about 4 nonstop flights from Houston to London per day.
That is a great-circle estimate, not a scheduled block time. An airline's published time will differ by roughly 15 to 45 minutes depending on routing, winds and taxi.
| Route | Est. time | Distance | Frequency | Airlines |
|---|---|---|---|---|
| IAH → LHR George Bush Intercontinental Houston Airport to London Heathrow Airport |
9h 48m | 4,824 mi | 28/wk | British Airways, United Airlines |
Frequencies come from our most recent schedule sample. Where a pairing shows “—” we track it as an operating nonstop but hold no schedule sample for it — we would rather show nothing than guess.
2 airlines fly nonstop from Houston to London, including British Airways, United Airlines.
Recent scheduled departures on this route have used the Boeing 787, Boeing 777, Boeing 777-300ER.
Aircraft assignments change by season and by time of day.
On a long east–west route like this one the two directions do not take the same time. Aircraft flying eastbound ride the mid-latitude jet stream and typically arrive earlier than the westbound leg, which flies into it. The difference is commonly 30 to 90 minutes on transatlantic and transpacific flights, and it varies by season. The estimate above does not model wind — treat it as a midpoint and check the airline's own timetable for the block time on your date.
The distance from Houston to London is 4,824 miles, or 7,763 kilometres.
| Great-circle distance | 4,824 mi |
| Kilometres | 7,763 km |
| Nautical miles | 4,192 nmi |
Measured airport to airport. The actual track is longer — aircraft follow airways, avoid restricted airspace and route around weather.
Yes. 2 airlines fly it nonstop, with about 28 departures a week. The route is in our live nonstop dataset, last seeded 2026-07-07.
About 9h 48m in the air on the IAH–LHR nonstop. That is a great-circle estimate from the 4,824-mile distance, not a scheduled block time — an airline's published time will differ by roughly 15 to 45 minutes depending on routing, winds and taxi.
4,824 miles (7,763 km) great-circle between George Bush Intercontinental Houston Airport and London Heathrow Airport.
British Airways, United Airlines.
Recent scheduled departures have used the Boeing 787, Boeing 777, Boeing 777-300ER. Assignments change by season and by time of day.
