Great-circle route LHR → BKK. 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 London to Bangkok is approximately 11h 56m nonstop. The distance is 5,951 miles (9,577 km). There are about 3 nonstop flights from London to Bangkok 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 |
|---|---|---|---|---|
| LHR → BKK London Heathrow Airport to Suvarnabhumi Airport |
11h 56m | 5,951 mi | 21/wk | EVA Air, Thai Airways International |
| LGW → BKK London Gatwick Airport to Suvarnabhumi Airport |
11h 56m | 5,947 mi | 3/wk | British Airways |
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.
3 airlines fly nonstop from London to Bangkok, including British Airways, EVA Air, Thai Airways International.
Recent scheduled departures on this route have used the Boeing 777-300ER Passenger, Boeing 777-300ER, Boeing 777.
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 London to Bangkok is 5,951 miles, or 9,577 kilometres.
| Great-circle distance | 5,951 mi |
| Kilometres | 9,577 km |
| Nautical miles | 5,171 nmi |
Measured airport to airport. The actual track is longer — aircraft follow airways, avoid restricted airspace and route around weather.
Yes. 3 airlines fly it nonstop, with about 24 departures a week, across 2 airport pairings. The route is in our live nonstop dataset, last seeded 2026-07-07.
About 11h 56m in the air on the LHR–BKK nonstop. That is a great-circle estimate from the 5,951-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.
5,951 miles (9,577 km) great-circle between London Heathrow Airport and Suvarnabhumi Airport.
British Airways, EVA Air, Thai Airways International.
Recent scheduled departures have used the Boeing 777-300ER Passenger, Boeing 777-300ER, Boeing 777. Assignments change by season and by time of day.
LHR to BKK, LGW to BKK. Flight times differ slightly between them because the airports are not in the same place.
