Flights from London Heathrow Airport to Phnom Penh

Flight deals from London Heathrow Airport to Phnom Penh

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

Phnom Penh.฿20,012 per passenger.Departing Mon, 19 May, returning Wed, 28 May.Return flight with China Southern.Outbound indirect flight with China Southern, departs from London Heathrow on Mon, 19 May, arriving in Phnom Penh.Inbound indirect flight with China Southern, departs from Phnom Penh on Wed, 28 May, arriving in London Heathrow.Price includes taxes and charges.From ฿20,012, select.

Flying from London Heathrow Airport to Phnom Penh

Arm yourself with these facts on the fly.

Cheapest flight found	฿13,692, Phnom Penh
Cheapest month to fly	November

How to find cheap flights from London Heathrow Airport to Phnom Penh

We've compared the best online travel agents and flight providers on the internet to find the cheapest plane tickets from London Heathrow Airport to Phnom Penh. Other savvy travellers recently found return flights from ฿20,012 and one-way tickets from ฿13,692. Ready to join them? Here are a few tips to help you do it the smart way.

Fly in November

The cheapest time to fly from London Heathrow Airport to Phnom Penh is currently November.

Fly on a Sunday

From our data, we can see that Sunday seems to be the cheapest time to fly from London Heathrow Airport to Phnom Penh.

Flex your dates for the best rates

If you’re flexible on your departure dates, you can use Skyscanner's whole month tool to find the cheapest day of the year to fly from London Heathrow Airport to anywhere you choose in Phnom Penh.

Watch as fares rise and fall

With Price Alerts, we'll let you know when flight prices from London Heathrow Airport to your chosen airport in Phnom Penh go up or down so you can book when the time is just right.

Relax – these are fee-free flight tickets

With us, there are no added fees – the London Heathrow Airport to Phnom Penh flight price you see when you search with us is what you pay to the provider.

Frequently asked questions

What is the average price of a flight from London Heathrow Airport to Phnom Penh?

We looked at all of the upcoming return flights from London Heathrow Airport to Phnom Penh we could find over the next 12 months. It looks like ฿20,012 is the best price. This is good, compared to the average Phnom Penh ticket price of ฿28,223.

What is the cheapest month to fly from London Heathrow Airport to Phnom Penh?

The cheapest month to fly from London Heathrow Airport to Phnom Penh is currently May.

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

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from London Heathrow Airport to Phnom Penh on Monday, 19 May 2025.

If I'm flying from London Heathrow Airport, where in Phnom Penh is cheapest to fly into?

If you're flying from London Heathrow, the cheapest city in Phnom Penh to fly into is Phnom Penh. The cheapest airport serving Phnom Penh at the moment is Phnom Penh.