£377 Cheap Flights from London (LHR) to Phnom Penh (PNH)

Popular airlines from Heathrow Airport (LHR) to Phnom Penh Intl. Airport (PNH)

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Cheap Flights from London (LHR) to Phnom Penh (PNH)

Prices were available within the past 7 days and start at £377 for one-way flights and £401 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air China
Shenzhen Airlines
China Southern Airlines
Lufthansa
Etihad Airways
Swiss International Air Lines
China Eastern Airlines
Singapore Airlines
Vietnam Airlines
Austrian Airlines

Find the cheapest month to fly from London (LHR) to Phnom Penh (PNH)

November is typically the cheapest month to fly

From £411 - £860 per traveller.

Graph displaying average flight prices per month

Flight from London to Phnom Penh route information
Origin airport
Heathrow
Destination airport
Phnom Penh Intl.
Airlines serving
Air China, Asiana Airlines, British Airways, Cathay Pacific, China Airlines, China Eastern Airlines, China Southern Airlines, EVA Airways, Emirates, Etihad Airways, Finnair, KLM, Korean Air, Lufthansa, Malaysia Airlines, Singapore Airlines, Swiss International Air Lines, Thai Airways International, Turkish Airlines, Vietnam Airlines
Return price
£400
Distance
9976 km

Compare flights from London to Phnom Penh easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from London to Phnom Penh. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Phnom Penh Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Heathrow to Phnom Penh Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Heathrow (LHR) to Phnom Penh Intl. (PNH)

The easiest way to view the best deals on flights from London to Phnom Penh today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Heathrow to Phnom Penh Intl. start at just £401 and range up to £695.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near London and Phnom Penh
  • booking your flight during November, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your London to Phnom Penh flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Heathrow to Phnom Penh Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Frequently asked questions

How much is a flight from Heathrow Airport (LHR) to PNH?
The lowest price advertised for a round-trip flight from Heathrow Airport to Phnom Penh Airport is £401. But you better act quick. This price is taken from fares available within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Heathrow Airport (LHR) to PNH?
Each airline has a different set of terms and conditions. If you decide to cancel your holiday, visit our Customer Service Portal.
How do I find cheap flights from LHR to PNH that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Heathrow Airport to Phnom Penh Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Heathrow Airport (LHR) to Phnom Penh Intl. Airport (PNH)?
With around 10,000 kilometres separating Hounslow and Cambodia, your flight will be a long one. Pack wisely and make your trip comfortable. Simple things like an extra pair of socks and a quality travel pillow can make a huge difference.
Which airlines fly direct from LHR to Phnom Penh Intl. Airport (PNH)?
At the moment, no airlines offer direct flights from London Heathrow to Phnom Penh Intl. Airport (PNH). You'll have to book a flight with at least one stop. To score the best connections and price, lock in your fare well in advance.
Are LHR to Phnom Penh Intl. Airport (PNH) flight tickets cheaper when they're purchased at the last minute?
Flight prices are constantly going up and down, so it's no sure thing. While last-minute flight deals between Heathrow Airport and PNH are possible, it also makes sense to monitor prices well before you fly. In fact, some carriers announce their prices up to 12 months before the departure date. Expedia is continuously updating the biggest bargains around, so keep checking back and be ready to book when the price is low.

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Phnom Penh Airports

Techo Intl. Airport

London Airports

London

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