Cheap flights from London to Phnom Penh

London
LON
Phnom Penh
PNH

Flight deals from London to Phnom Penh

Below you can see the best deals on flights London — Phnom Penh for upcoming dates. Direct and connecting flights from various airlines — compare prices and choose the right ticket.

The lowest price for the next 2 months is on 17 August, from AED 2,024.

Top 10 cheap flights from London to Phnom Penh

CZ
CZ
FD
FD
 2,024

London — Phnom Penh

21:50—17:45
17 Aug 2026
37 h 55 m
3 stops
CZ
CZ
FD
FD
 2,182

London — Phnom Penh

22:10—17:45
17 Aug 2026
37 h 35 m
3 stops
CZ
CZ
FD
FD
 2,182

London — Phnom Penh

22:10—17:45
17 Aug 2026
37 h 35 m
3 stops
CZ
CZ
VJ
FD
FD
 2,205

London — Phnom Penh

21:50—17:45
17 Aug 2026
37 h 55 m
4 stops
CZ
CZ
VJ
FD
FD
 2,205

London — Phnom Penh

21:50—17:45
17 Aug 2026
37 h 55 m
4 stops
CZ
CZ
VU
FD
FD
 2,213

London — Phnom Penh

21:50—17:45
17 Aug 2026
37 h 55 m
4 stops
CZ
CZ
VU
FD
FD
 2,213

London — Phnom Penh

21:50—17:45
17 Aug 2026
37 h 55 m
4 stops
CZ
CZ
VJ
FD
FD
 2,219

London — Phnom Penh

21:50—17:45
17 Aug 2026
37 h 55 m
4 stops
CZ
CZ
VJ
FD
FD
 2,223

London — Phnom Penh

21:50—17:45
17 Aug 2026
37 h 55 m
4 stops
CZ
CZ
VJ
FD
FD
 2,224

London — Phnom Penh

21:50—17:45
17 Aug 2026
37 h 55 m
4 stops

Prices were found in the last 72 hours and may change — check the exact price when you continue.

About the London — Phnom Penh flight

Looking for cheap flights from London to Phnom Penh? Compare fares from different airlines, check the flight schedule and travel time — and book your London — Phnom Penh ticket online at the best price.

A nonstop flight takes about 13 h 2 min, the distance between the cities is around 10,028 km.

Planning your trip? You may find our Phnom Penh travel guide, how to get from the airport into town and Phnom Penh weather forecast useful. To catch a low fare, use the low-price calendar and the monthly price chart on this page.

Facts about this route

from AED 2,024Min. price
AugustCheapest
AugustPeak season
NoDirect flights
10,028 kmDistance
13 h 2 minTravel time

Flight ticket prices by day: London — Phnom Penh

Below is a calendar of the lowest flight ticket prices for London — Phnom Penh by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from AED 2,024 in August, and the most expensive are around AED 2,024 in August. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.

 
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Prices by month

Average one-way fares from London to Phnom Penh by month. Tickets are usually cheapest in July (around AED 1,782) and priciest in December (about AED 2,539) — use the table and chart below to pick the best time to fly.

MonthAverage priceLevelMonthAverage priceLevelMonthAverage priceLevel
JanAED 2,495highMayAED 2,049mediumSepAED 1,826low
FebAED 2,450highJunAED 1,826lowOctAED 1,960medium
MarAED 2,316highJulAED 1,782lowNovAED 2,227high
AprAED 2,138mediumAugAED 1,782lowDecAED 2,539high

Some values are estimated based on seasonality.

When to fly

Weather in Phnom Penh: it is warmest in April (up to 35 °C on average) and coolest in December (around 31 °C). The driest month is February.

Tickets are usually cheapest in August and most expensive in August. Compare prices and weather by month in the charts below to pick the best time to fly.

Temperature · Phnom Penh

Dry and wet days · Phnom Penh

Wind speed and direction · Phnom Penh

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How to get the best deal on a London — Phnom Penh ticket

  • Book ahead: fares for London — Phnom Penh are usually lower 3–8 weeks before departure than at the last minute.
  • Play with your dates — Tuesday, Wednesday and Saturday departures are often cheaper than Friday and Sunday.
  • London is served by more than one airport — compare fares and travel time to each before you book.
  • The cheapest month to fly to Phnom Penh is usually August — plan your trip around it if your dates are flexible.
  • Watch the low-price calendar and the monthly price trend on this page — they make it easier to catch a good date.
  • Travelling light? Pick a cabin-baggage-only fare — tickets without checked luggage are noticeably cheaper.
  • Get to the airport in good time — about 2–3 hours before an international departure and roughly an hour before a domestic one.

Airlines

No flights found yet

We couldn't find any airlines on this route, but that doesn't mean there aren't any. Try searching — we'll show you the latest options.

Cities and airports on the London — Phnom Penh route

Flights London — Phnom Penh depart from Heathrow Airport, London Gatwick Airport, Stansted Airport and London Luton Airport and arrive at Techo International Airport and Phnom Penh International Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.

Departure

London

LON
United Kingdom
About the cityHow to get thereWeatherAll about the country United Kingdom
Arrival

Phnom Penh

PNH
Cambodia
About the cityHow to get thereWeatherAll about the country Cambodia
Departure airports
Arrival airports

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Frequently asked questions about the London — Phnom Penh flight

How long is the flight from London to Phnom Penh?

A nonstop London — Phnom Penh flight takes about 13 h 2 min — the distance between the cities is around 10,028 km.

How far is it from London to Phnom Penh?

The distance from London to Phnom Penh is about 10,028 km.

Which airports do London — Phnom Penh flights use?

Flights from London depart from Heathrow Airport, London Gatwick Airport, Stansted Airport, and arrive at Techo International Airport, Phnom Penh International Airport. If a city has more than one airport, check which one your ticket uses before you travel.

How much is a ticket from London to Phnom Penh?

The price of a London — Phnom Penh ticket depends on your travel date, season and demand: it is usually cheapest to fly in August, and most expensive in August. Check the current lowest fare and low-price calendar on this page.

When is the best time to book flights London — Phnom Penh?

Flights London — Phnom Penh are usually cheaper when booked in advance — a few weeks before departure and away from peak dates; the most budget-friendly month to fly is August. Compare prices by month in the price trend chart on this page.

How can I find the cheapest flights from London to Phnom Penh?

To catch a low fare London — Phnom Penh, book a few weeks in advance, keep your dates flexible, and compare airlines and connecting options. The low-price calendar and monthly price chart on this page show the cheapest days and months at a glance: the most budget-friendly month to fly is usually August.

How early should I arrive at the airport?

For international flights, plan to be at the airport about 2–3 hours before departure, and around an hour before a domestic flight. Allow extra time during busy travel seasons and at large hubs, where check-in and security lines can be longer.

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