How long is the flight from London to Phnom Penh?

Direct flights from London to Phnom Penh typically take around 12h 18m. The great-circle distance is approximately 10,036 km.

What is the cheapest day to fly from London to Phnom Penh?

As a general industry pattern, mid-week flights (Tuesday and Wednesday) tend to be cheaper — see the cheapest-day page for real fare data on this route where available.

Which airlines fly from London to Phnom Penh?

Use our flight search above to see live availability and compare prices across airlines flying London to Phnom Penh.

How far in advance should I book a flight from London to Phnom Penh?

For the best fares, aim to book 4–8 weeks ahead during peak season and 2–4 weeks during off-peak periods. Last-minute deals can sometimes appear within 14 days of departure.

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Direct Flights: London to Phnom Penh

12h 18m

Flight time

10,036 km

Distance

Airport pairs

Find non-stop flights from London to Phnom Penh — no layovers, no connections. The route covers 10,036 km with a typical flight time of 12h 18m. Phnom Penh is located in Cambodia.

Direct airport connections

LHR

London Heathrow Airport

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PNH