Great-circle route LHR ↔ IAH. Faint dots are other airports, for geographic context. Download this map — free to reuse with a link back to this page.
Frequencies below are per direction, from our most recent schedule sample.
| Direction | Frequency | Days | Airlines |
|---|---|---|---|
| LHR → IAH London to Houston |
28/wk | Daily | British Airways, United Airlines |
| IAH → LHR Houston to London |
28/wk | Daily | British Airways, United Airlines |
Where a direction shows “—” we track it as an operating nonstop but hold no schedule sample for it — we would rather show nothing than guess.
In 2025, airlines reported 509,606 passengers on 2,679 flights between LHR and IAH — about 1,397 a day — filling 73% of the 700,397 seats flown. United Air Lines Inc. carried the most passengers (54%).
Source: US DOT T-100 segment reports — actual airline-reported traffic, scheduled service only, both directions combined. Cargo and charter flights excluded.
2 airlines fly the LHR–IAH nonstop, including British Airways, United Airlines.
Recent scheduled departures on this route have used the Boeing 787-10, Boeing 777-200 / 200ER Passenger, Boeing 777-300ER Passenger, Boeing 787 and 2 other types.
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 between London Heathrow Airport and George Bush Intercontinental Houston Airport 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 the route nonstop, with about 56 departures a week across both directions. The route is in our live nonstop dataset, last seeded 2026-07-07.
About 9h 48m in the air. 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.
About 28 a week from London to Houston and 28 a week from Houston to London, from our most recent schedule sample.
British Airways, United Airlines.
In 2025, airlines reported 509,606 passengers on 2,679 scheduled flights between LHR and IAH — about 1,397 a day — filling 73% of the seats flown. Source: US DOT T-100 segment reports, both directions combined.
Recent scheduled departures have used the Boeing 787-10, Boeing 777-200 / 200ER Passenger, Boeing 777-300ER Passenger, Boeing 787. Assignments change by season and by time of day.
