Cheap Flights from Phnom Penh to London Heathrow

Compare Phnom Penh to London Heathrow flight deals

Find the cheapest month or even day of the year to fly to London Heathrow

Book the best London Heathrow fare with no extra fees

Flight deals from Phnom Penh to London Heathrow

Looking for a cheap last-minute deal or the best return flight from Phnom Penh to London Heathrow? Find the lowest prices on one-way and return tickets right here.

London.R 4,673 per passenger.Departing Thu, 3 Apr.One-way flight with China Eastern.Outbound indirect flight with China Eastern, departs from Phnom Penh on Thu, 3 Apr, arriving in London Heathrow.Price includes taxes and charges.From R 4,673, select.

London.R 5,691 per passenger.Departing Tue, 13 May.One-way flight with Cambodia Angkor Air.Outbound indirect flight with Cambodia Angkor Air, departs from Phnom Penh on Tue, 13 May, arriving in London Heathrow.Price includes taxes and charges.From R 5,691, select.

London.R 5,935 per passenger.Departing Fri, 6 Jun.One-way flight with Shenzhen Airlines.Outbound indirect flight with Shenzhen Airlines, departs from Phnom Penh on Fri, 6 Jun, arriving in London Heathrow.Price includes taxes and charges.From R 5,935, select.

London.R 6,076 per passenger.Departing Sun, 23 Nov.One-way flight with China Eastern.Outbound indirect flight with China Eastern, departs from Phnom Penh on Sun, 23 Nov, arriving in London Heathrow.Price includes taxes and charges.From R 6,076, select.

London.R 6,393 per passenger.Departing Mon, 14 Jul.One-way flight with China Eastern.Outbound indirect flight with China Eastern, departs from Phnom Penh on Mon, 14 Jul, arriving in London Heathrow.Price includes taxes and charges.From R 6,393, select.

London.R 6,774 per passenger.Departing Mon, 8 Sep.One-way flight with Thai VietJet Air.Outbound indirect flight with Thai VietJet Air, departs from Phnom Penh on Mon, 8 Sep, arriving in London Heathrow.Price includes taxes and charges.From R 6,774, select.

London.R 6,831 per passenger.Departing Fri, 24 Oct.One-way flight with Malaysia Airlines.Outbound indirect flight with Malaysia Airlines, departs from Phnom Penh on Fri, 24 Oct, arriving in London Heathrow.Price includes taxes and charges.From R 6,831, select.

London.R 8,630 per passenger.Departing Thu, 11 Dec.One-way flight with China Eastern.Outbound indirect flight with China Eastern, departs from Phnom Penh on Thu, 11 Dec, arriving in London Heathrow.Price includes taxes and charges.From R 8,630, select.

Find the cheapest month to fly from Phnom Penh to London Heathrow

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Phnom Penh to London Heathrow flights are currently cheapest in April.

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Jan

Feb

Phnom Penh to London Heathrow: Alternative routes

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

Phnom Penh to London: Flight information

The things to know before you go.

Cheapest flight found	R 4,673
Cheapest month to fly	April

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

How much are return flights from Phnom Penh to London Heathrow?

The best price we found for a return flight from Phnom Penh to London Heathrow is R 12,431. 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.

Which airlines fly direct from Phnom Penh to London Heathrow?

Currently, there are no airlines that fly direct from Phnom Penh to London Heathrow. But we found flights with one or more stops from R 12,431.

How many flights are there a week from Phnom Penh to London Heathrow?

As of March 2025, there are no flights flying from Phnom Penh to London Heathrow.

When is the cheapest time to fly from Phnom Penh to London Heathrow?

The cheapest month to fly from Phnom Penh to London Heathrow is usually March 2025.

Which upcoming date is cheapest to fly from Phnom Penh Airport to London Heathrow Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Phnom Penh Airport to London Heathrow Airport on Saturday, 10 May 2025.

Can I get a direct flight from Phnom Penh Airport to London Heathrow Airport?

No airlines currently offer direct flights between Phnom Penh Airport and London Heathrow Airport. Most routes have one or more stops.

How can I find the best flight deal to London Heathrow?

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 London Heathrow 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.

When is the best time to book flights to London?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Phnom Penh Airport to London Heathrow with?

Currently, China Eastern offers the cheapest flight tickets to London Heathrow.

Travelling from Phnom Penh International Airport (PNH) to London Heathrow Airport (LHR): what you need to know

Travelling during a peak month like August? Public holidays and other high seasons can mean longer queues at check-in and security. Be extra cautious and get there up to four hours ahead of an international flight and two hours before domestic departures.
We make it easy to get a flight with a stopover. To see all the options for flights from Phnom Penh International Airport to London Heathrow Airport, uncheck 'Direct flights only.' Then, choose a flight with a stop long enough to explore the city of your choice. Popular stopovers between PNH and LHR are:
- Changi International Airport
- Suvarnabhumi Airport
- Guangzhou Baiyun International Airport
Before reserving your cheap ticket from PNH to LHR, check whether you need a visa to enter United Kingdom. Visa and travel document requirements can vary and are updated frequently. For the most up-to-date information, contact the nearest consulate or embassy of the country you're going to.

How to find the cheapest flights from Phnom Penh International Airport (PNH) to London Heathrow Airport (LHR)

R 4,673 is currently the best price for a one-way ticket from Phnom Penh International Airport to London Heathrow Airport. A return flight starts from R 12,431. These prices may change depending on availability.
It's often best to book ahead of time if you're looking for cheap tickets from PNH to LHR. That's because airlines change prices based on demand, which tends to rise closer to the date of departure.
The 'Whole month' tool shows you the cheapest tickets from Phnom Penh International Airport to London Heathrow Airport across the month. It's a good way to snap up a bargain if your travel plans are flexible.
Snapping up a cheap ticket from PNH to LHR is a breeze with Price Alerts. All you need to do is set up one of these automatic alerts and we'll notify you when the price has fallen.
Take advantage of filters to find the ideal trip for you. To see the 'Fastest,' 'Cheapest' or 'Best' flights from Phnom Penh International Airport to London Heathrow Airport, use the 'Sort by' function. You can also filter results by airline, arrival and departure times, and journey duration.

Handy information about Phnom Penh International Airport (PNH)

Phnom Penh International Airport is about 11 kilometres from central Phnom Penh. If you're catching a cab, ride-sharing or driving from the centre, it'll take you 30 minutes or so to arrive, depending on the traffic.
Want an easy start to your holiday? Stay near PNH. Whether you're taking an early flight from Phnom Penh International Airport to London Heathrow Airport or want to avoid feeling rushed, these hotels are ideal:

Arriving at London Heathrow Airport (LHR)

Consider booking a hotel near LHR if you're taking a late flight from Phnom Penh International Airport to London Heathrow Airport. Pick one of these options and skip the long transfer:

Getting from London Heathrow Airport (LHR) to central London

London Heathrow Airport to central London is around 57 minutes in a car. It's approximately 31 kilometres away. See what options are available, such as cabs, car rentals or ride-sharing services.
When travelling on public transport, expect a journey of around 1 hour and 1 minute.

When to fly to London Heathrow Airport (LHR)

July is the most popular month for flights from Phnom Penh International Airport to London Heathrow Airport. To steer clear of the crowds, head to London in February.
Book your flight from Phnom Penh International Airport to London Heathrow Airport for July if you'd like to explore London during its warmest month. Expect temperatures of between 11ºC and 26ºC.
If you want cooler conditions, search for a cheap ticket from PNH to LHR in January. Average temperatures are between 0ºC and 9ºC then.

More about London

Once you've locked in your flights from PNH to LHR, you'll want to find somewhere to stay in London. Make one of these options your base for exploring this popular destination:
Every great adventure has to include some sightseeing. Big Ben, The British Museum and Buckingham Palace are must-visits when exploring London.
London Gatwick Airport (LGW) and Stansted Airport (STN) are alternative ways to get to or from London. Have a look at the range of flights and departure times. These international airports may be an easier or more budget-friendly option depending on your itinerary.

Complete your London trip with hotels and a car rental

You've got your cheap ticket to London Heathrow Airport — next up is finding somewhere to stay, and maybe even your own set of wheels. We've compared prices across hundreds of companies to bring you the top hotels and car rental deals in London.