London to Phuket
12h 43m The flight from London Heathrow Airport (LHR) to Phuket International Airport (HKT) covers 9,904 km (6,154 miles) and takes approximately 12h 43m gate to gate for a typical jet.
The route heads east on an initial great-circle bearing of 78°, passing near 40.4° N, 63.8° E at its midpoint.
The route
The great-circle path — the shortest line between the two airports across the curve of the earth. On a flat map it looks bent; on a globe it is straight.
Flight time at different cruise speeds
Aircraft type, winds and routing all move the real number. This is the same distance flown at different speeds, plus the 25-minute ground and climb allowance.
| Typical of | Cruise speed | Airborne | Gate to gate |
|---|---|---|---|
| Turboprop / regional | 550 km/h | 18h 00m | 18h 26m |
| Narrowbody jet (A320, 737) | 780 km/h | 12h 42m | 13h 07m |
| Widebody jet (777, 787, A350) | 900 km/h | 11h 00m | 11h 25m |
| Private jet (Gulfstream) | 850 km/h | 11h 39m | 12h 04m |
Headwinds on an eastbound long-haul routinely add 30–60 minutes; the same route westbound can be quicker. Airlines publish schedules with padding built in.
Both airports
| LHR | HKT | |
|---|---|---|
| Airport | London Heathrow Airport | Phuket International Airport |
| City | London | Phuket |
| Country | United Kingdom | Thailand |
| ICAO | EGLL | VTSP |
| Coordinates | 51.4707, -0.4599 | 8.1133, 98.3174 |
| Elevation | 83 ft | 82 ft |
Questions
How long is the flight from London to Phuket?
A non-stop flight from London (LHR) to Phuket (HKT) takes about 12h 43m. The great-circle distance is 9,904 km (6,154 miles, 5,348 nautical miles), flying east on an initial bearing of 78°.
How far is London from Phuket?
9,904 kilometres in a straight line over the earth's surface — 6,154 miles or 5,348 nautical miles. Actual flown distance is usually 2–5% longer because aircraft follow airways, avoid weather and route around restricted airspace.
Is there a non-stop flight between LHR and HKT?
This page calculates the direct-line time and distance; it does not track airline schedules. At 9,904 km the route is comfortably within range of a non-stop service if an airline chooses to fly it. Check an airline or booking site for what is actually scheduled.
What should I expect on a 12h 43m flight?
Anything past six hours is a long-haul flight: expect at least one meal service, a significant time-zone shift, and enough sitting that circulation and hydration start to matter. Cabin altitude, dry air and disrupted sleep do more damage to a training routine than the flight itself.
Other routes from London
Airport coordinates from OurAirports (public domain). Distance is a great-circle calculation; flight time uses the model described on the method page. Flight times are great-circle estimates for planning only — always check the airline's published schedule.