Free tool

Flight time from Phnom Penh to London

About 12 hours and 40 minutes non-stop, 10,036 km (6,236 miles), with your local arrival time and the time difference.

Estimated flight time12h 40mnon-stop
Distance10,036 km6,236 miles · 5,419 nm
Time difference−7hLondon vs Phnom Penh
Local time now19:53 / 12:53Phnom Penh / London

Estimate for a direct flight from Phnom Penh (KTI, Techo International) to London (LHR, Heathrow). Change the departure time below to see your local arrival time.

From
To

How long is the flight from Phnom Penh to London?

A non-stop flight from Phnom Penh to London takes about 12 hours and 40 minutes. The two cities are 10,036 km (6,236 miles) apart in a straight line, measured between Techo International (KTI) and Heathrow (LHR).

This is a long-haul route. If there is no direct flight on your dates, a connection through a hub usually adds 2–6 hours to the journey.

The estimate assumes an average speed of about 830 km/h plus around 35 minutes for taxiing, take-off and landing. Real schedules vary with the airline, aircraft, route and winds – heading west into the jet stream, flights often take a little longer than this. Check your booking for the exact time.

Time difference and arrival time

London is 7 hours behind Phnom Penh right now. A flight leaving Phnom Penh at 10:00 local time lands at about 15:40 local time in London. With a 7h shift, expect some jet lag: as a rough guide the body adjusts by about an hour a day, and flying west (as on this trip) is usually easier than the other way.

Why arrival times look strange

Airline schedules always show local times: departure in the departure city’s time and arrival in the arrival city’s time. Fly east and you “lose” hours – a 7-hour flight from New York to London leaving at 19:00 lands at 07:00 the next morning. Fly west and you gain them, which is how you can land in Los Angeles almost at the same clock time you left Tokyo. This calculator handles the time zones and daylight saving time for you.

How the flight time estimate works

In estimate mode the calculator measures the great-circle distance between the two cities – the shortest route over the Earth’s surface – and assumes an average speed of about 830 km/h (515 mph), plus around 35 minutes for taxiing, take-off and landing. That gives a good guide for a non-stop flight. Real schedules vary with the airline, aircraft, winds and route: flights heading east with the jet stream are often quicker than the same trip heading west, so always check your booking for the exact time.

Frequently asked questions

How long is the flight from Phnom Penh to London?

A direct flight from Phnom Penh to London takes about 12 hours and 40 minutes. This is an estimate based on the distance; airline schedules can be shorter or longer depending on the route and winds.

How far is London from Phnom Penh?

The straight-line (great-circle) distance between Phnom Penh and London is about 10,036 km, or 6,236 miles.

What is the time difference between Phnom Penh and London?

London is 7 hours behind Phnom Penh at the moment.

More free time tools

All tools →