London to Bangkok

The classic long-haul one-way into Thailand, and where the ticket question usually starts.

Great-circle distance
9,579 km · 5,952 mi
Typical block time
12h 35m
Timezone difference
+7h at the destination
Arrives
The next day (+1)

Distance is the great circle between the two airports; block time adds taxi allowances and a climb-and- descent penalty to airborne time at the cruise speed of the aircraft class that usually flies this sector. These are modelled figures for planning, not a timetable — a published schedule is the authority on what any particular flight does.

Arriving in Thailand · Required

Thailand states proof of onward travel as a condition at the port of entry — and its own text accepts train, bus and boat tickets, not only flights.

Read the Thailand rule, with the source

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    LHR to BKK: flight time, distance and onward-ticket rules — FlyProof