Beginning of main content
Return Icon
Trip Type
Flight 1
Flight 2
Flight 3
Flight 4
Flight 5

Search over 1,000,000 properties worldwide and 550 airlines worldwide

Search over a million flights, hotels, packages, and more

No Expedia cancellation fee to change or cancel almost any hotel reservation.

Cheap Flights from London to Phnom Penh

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

London to Phnom Penh route information

Origin Airport Heathrow
Destination Airport Phnom Penh Intl.
Airlines Serving Aeroflot-Russian Airlines, All Nippon Airways, Asiana Airlines, British Airways, Cathay Pacific, China Eastern Airlines, China Southern Airlines, Emirates, Etihad Airways, Finnair, KLM, Korean Air, Malaysia Airlines, Philippine Airlines, Qatar Airways, Shenzhen Airlines, Singapore Airlines, Thai Airways International, Turkish Airlines, Vietnam Airlines
Flight Price £353
Distance 9,976 km





Cheap LHR to PNH Flights

  • What is the cheapest airline flying from London to Phnom Penh?

    China Southern Airlines is your best flying friend for finding that sought-after low fare. They're offering fares as low as £392, while prices for similar flights can cost as much as £2,478.
  • How long do most people stay in Phnom Penh on average?

    Of course, you are not most people, but if you were, you'd stay roughly 27 days.
  • What is the cheapest day to fly?

    The cheapest day to fly from London to Phnom Penh is on Friday. So, if you want to save a bit of money on your next getaway look for flights on Friday.
  • How much is a plane ticket to Phnom Penh (PNH) from London (LHR)?

    Costs can range anywhere from £392 to £2,478, as prices for LHR to PNH do fluctuate much more than the majority of routes from the United Kingdom. Prices are usually lower the further out you book.
  • What airports do you fly into for Phnom Penh?

    Departing from London Heathrow Airport is not the only way to get to Phnom Penh International Airport. Try searching for flights from London City Airport (LCY) - being just 22 miles from LHR, it's easily accessible for most. Over the next two months, flights from LCY to PNH are being priced 31% cheaper than flights from LHR to PNH.
  • What is the cheapest date to fly to Phnom Penh?

    As of Aug 19th, the best day for deals to Phnom Penh (PNH) is Sep 4th. Your ticket will cost £602, which is 71% less than the average price to book the same route.

Phnom Penh Flights

When looking for plane tickets to Phnom Penh, the ease and convenience of using Expedia simply can’t be beat. With tons of departure points and flights options from the top airline carriers, London gives you the widest array of cheap flights to Phnom Penh. Look for Phnom Penh airfare with the assurance that you have one of the world's leading full-service online travel brands working for you.

Expedia lets you search across the largest number of airlines and Phnom Penh flights, which means that you’ll be able to find a great flight deal at the perfect travel date and time. Our simple-to-use booking engine makes looking for terrific bargains easy and hassle-free; just enter your travel dates and departure city, and let Expedia do the rest! Adjust your travel dates and explore connecting flights to find an even better deal on your Phnom Penh flight!

Browse through dozens of options at great prices! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Phnom Penh trip. There’s simply no substitute for great prices suited to your travel needs and backed by excellent customer support.

Combine your Phnom Penh flight with a hotel and/or car rental for a package deal designed to save you even more money! Discover additional savings by booking in advance or find a last minute deal. There are tons of ways to save on your flights to Phnom Penh from London. Use us as your stop travel destination and have the confidence that you’re getting a bargain!