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Cheap Flights from London to Phnom Penh

Travellers and cabin class

Compare London to Phnom Penh flight deals

Find the cheapest month or even day of the year to fly to Phnom Penh

Book the best Phnom Penh fare with no extra fees

Flight deals from London to Phnom Penh

Looking for a cheap last-minute deal or the best return flight from London to Phnom Penh? Find the lowest prices on one-way and return tickets right here.
Phnom Penh.£247 per passenger.Departing Thu, 24 Apr.One-way flight with Ryanair.Outbound indirect flight with Ryanair, departs from London Stansted on Thu, 24 Apr, arriving in Phnom Penh.Price includes taxes and charges.From £247, select.
Phnom Penh.£271 per passenger.Departing Tue, 6 May.One-way flight with Wizz Air UK.Outbound indirect flight with Wizz Air UK, departs from London Luton on Tue, 6 May, arriving in Phnom Penh.Price includes taxes and charges.From £271, select.
Phnom Penh.£273 per passenger.Departing Sun, 16 Nov.One-way flight with Wizz Air UK.Outbound indirect flight with Wizz Air UK, departs from London Luton on Sun, 16 Nov, arriving in Phnom Penh.Price includes taxes and charges.From £273, select.
Phnom Penh.£283 per passenger.Departing Mon, 8 Sep.One-way flight with Wizz Air Malta.Outbound indirect flight with Wizz Air Malta, departs from London Gatwick on Mon, 8 Sep, arriving in Phnom Penh.Price includes taxes and charges.From £283, select.
Phnom Penh.£286 per passenger.Departing Tue, 17 Jun.One-way flight with Wizz Air UK.Outbound indirect flight with Wizz Air UK, departs from London Luton on Tue, 17 Jun, arriving in Phnom Penh.Price includes taxes and charges.From £286, select.
Phnom Penh.£291 per passenger.Departing Thu, 30 Oct.One-way flight with Wizz Air UK.Outbound indirect flight with Wizz Air UK, departs from London Gatwick on Thu, 30 Oct, arriving in Phnom Penh.Price includes taxes and charges.From £291, select.
Phnom Penh.£302 per passenger.Departing Tue, 26 Aug.One-way flight with Wizz Air UK.Outbound indirect flight with Wizz Air UK, departs from London Gatwick on Tue, 26 Aug, arriving in Phnom Penh.Price includes taxes and charges.From £302, select.
Phnom Penh.£309 per passenger.Departing Wed, 26 Mar.One-way flight with Ryanair.Outbound indirect flight with Ryanair, departs from London Stansted on Wed, 26 Mar, arriving in Phnom Penh.Price includes taxes and charges.From £309, select.

Find the cheapest month to fly from London to Phnom Penh

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like London to Phnom Penh flights are currently cheapest in April.
Mar
from £309
Apr
from £247
May
from £271
Jun
from £286
Jul
from £342
Aug
from £302
Sep
from £283
Oct
from £291
Nov
from £273
Dec
from £352
Jan
from £327
Feb
from £337

London to Phnom Penh: Alternative routes

Compare routes from London to Phnom Penh below. You may find an airport to fly into that's cheaper, faster, or easier than Phnom Penh.

London to Phnom Penh: Flight information

The things to know before you go.
Cheapest flight found£247
Cheapest month to flyApril

Finding cheap flights from London to Phnom Penh: Frequently asked questions

The best price we found for a return flight from London to Phnom Penh is £400. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from London to Phnom Penh. But we found flights with one stop from £400.
As of March 2025, there are no flights flying from London to Phnom Penh.
The cheapest month to fly from London to Phnom Penh is usually March 2025.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from London to Phnom Penh Airport on Friday, 26 September 2025.
No airlines currently offer direct flights between London and Phnom Penh Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Phnom Penh but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Phnom Penh is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Phnom Penh is China Southern .

How to find cheap flights to Phnom Penh from London

Looking for cheap tickets from London to Phnom Penh? Here are a few tips on how to secure the best flight price and make your journey as smooth as possible.

  • Simply hit 'search'. From British Airways to international carriers like Emirates, we compare all major airlines along with the most popular online travel agents to find the cheapest plane tickets from London to Phnom Penh. And with us there are no hidden fees - what you see is what you pay.
  • Compare flight deals to Phnom Penh from London from over 1,000 providers. Then choose the cheapest or fastest plane tickets.
  • Flex your dates to find the best London-Phnom Penh ticket prices. If you are flexible when it comes to your travel dates, use Skyscanner's 'Whole month' tool to find the cheapest month, and even day to fly to Phnom Penh from London.
  • Set up a Price Alert. You can easily track the fare of your cheap London-Phnom Penh flights by creating an alert. Whenever prices go down or up, you'll get an email or push notification to help make sure you get the best possible flight deal.
  • Fly without stops. Only interested in direct flights between London and Phnom Penh? Make sure to tick 'Direct flights only' when performing a search. If there are direct flights available on the route, these will appear in the results.
  • Find the cheapest Business class flights from London and Phnom Penh. We scour the internet for the best Business, Premium Economy and First Class flight fares to Phnom Penh, too. Check the difference in price as you search – you might just chance upon a last-minute low fare. Note that not all cabin classes are available for every destination or airline.
  • Include nearby airports in your search. Widen your search for London to Phnom Penh flight deals by selecting the "add nearby airports" option. This will allow you to see flight prices for all the nearest airports at your departure point and your destination and could help you save next time you travel.

    • Combine your flight to Phnom Penh from London with hotels and car hire

    Once you've secured your cheap flight ticket from London to Phnom Penh, discover the best prices and exclusive rates for hotels in Phnom Penh or nearby. You can also compare hundreds of car hire companies in one go so that you get the best car hire price for your trip.


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Plan the rest of your trip from London to Phnom Penh

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.