Q: How much does it cost for a return flight from London Heathrow Airport to Phnom Penh?

Airfare is below average for this route at the moment. London Heathrow Airport to Phnom Penh flights typically cost between £497 and £764 in November. The cheapest return flight price found within the last 3 days was £483 on China Southern (23 Nov-9 Dec).

Question 1

What’s the fastest stopover option from London Heathrow Airport to Phnom Penh?

Accepted Answer

Flights via Bangkok (BKK) have the shortest average one-way travel time for one-stop routes: 14h 48m.

Question 2

What’s the cheapest stopover airport for flights from London Heathrow Airport to Phnom Penh?

Accepted Answer

Shenzhen (SZX) is the most affordable one-stop option, with an average return flight price of £549.

Question 3

How much does it cost for a return flight from London Heathrow Airport to Phnom Penh?

Accepted Answer

Airfare is below average for this route at the moment.London Heathrow Airport to Phnom Penh flights typically cost between £497 and £764 in November.
The cheapest return flight price found within the last 3 days was £483 on China Southern (23 Nov-9 Dec).

Question 4

What’s the top stopover airport for flights from London Heathrow Airport to Phnom Penh?

Accepted Answer

Beijing (PEK) – chosen by Cheapflights users on 23% of one-stop itineraries from London Heathrow Airport to Phnom Penh on Cheapflights.

Question 5

Which airport typically offers the quickest stopover for flights from London Heathrow Airport to Phnom Penh?

Accepted Answer

Flights via Doha (DOH) offer the fastest connection on this route, with an average stopover time of 1h 31m.

Question 6

How long is the flight from London Heathrow Airport to Phnom Penh?

Accepted Answer

There are many flights that can get you from London Heathrow Airport to Phnom Penh in 34h 05m. Fly via China Southern to get the fastest option. The distance from London Heathrow Airport to Phnom Penh is about 6232 mi.

Question 7

What are the cheapest airlines flying from London Heathrow Airport to Phnom Penh round-trip?

Accepted Answer

Currently priced at £381, Shenzhen Airlines will fly you from London Heathrow Airport to Phnom Penh and back. In addition to Shenzhen Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Air China and China Southern - these airlines can fly you to your destination from £406 and £432, respectively. You may be able to fly from London Heathrow Airport to Phnom Penh for 45% less than the average price by searching for these airlines.

Question 8

How far ahead should I book a flight from London Heathrow Airport to Phnom Penh?

Accepted Answer

The best time to book flights from London Heathrow Airport to Phnom Penh is 79 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Question 9

What is the cheapest month to book a flight from London Heathrow Airport to Phnom Penh?

Accepted Answer

Currently, September is the cheapest month in which you can book a flight from London Heathrow Airport to Phnom Penh (average of £689). Flying from London Heathrow Airport to Phnom Penh in July is currently the most expensive (average of £1,232). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Question 10

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

Accepted Answer

Travellers seeking maximum savings on their London Heathrow Airport to Phnom Penh flight should consider departing on Monday evenings when fares are most often at their lowest. Friday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

Question 11

E

Accepted Answer

In terms of precipitation, rainfall in Phnom Penh ranges from 0.0 - 250.0 inches per month. October is typically the wettest month, when rainfall can reach 250.0 mm. January is typically the driest time to visit Phnom Penh when rainfall is around 0.0 mm.

Question 12

E

Accepted Answer

If weather is an important factor for your trip to Phnom Penh, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 29.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 25.0 C).

Question 13

What are the most popular airlines that fly from London Heathrow Airport to Phnom Penh?

Accepted Answer

British Airways, Air China and Cathay Pacific are the most popular airlines when flying from London Heathrow Airport to Phnom Penh.

Question 14

What is the cheapest day to fly round-trip from London Heathrow Airport to Phnom Penh?

Accepted Answer

Thursday flights are found to be more expensive to fly from London Heathrow Airport to Phnom Penh. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Phnom Penh.

Question 15

How far in advance should I book a flight from London Heathrow Airport to Phnom Penh?

Accepted Answer

Users have found that booking a flight from London Heathrow Airport to Phnom Penh at least 54 days early can save you up to 16% on average compared to booking a flight this week. If booking 54 days before your flight isn’t an option for you, users have found flights from London Heathrow Airport to Phnom Penh for as little as £552 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as £878 for flights departing within the next 3 days.

Question 16

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

Accepted Answer

Due to multiple factors, expect to potentially pay more when booking in July. For low rates, November can be a great choice for travel to Phnom Penh. Flights to Phnom Penh from London Heathrow Airport in November are about £657 on average during November, but can be found for as low as £402.

Question 17

What is the cheapest time of day to fly from LHR to PNH?

Accepted Answer

When flying from London Heathrow Airport to Phnom Penh, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 39% versus a flight at midday.

Question 18

What airport do you fly into for flights to Phnom Penh from London Heathrow?

Accepted Answer

Located just 5.0 mi from the city center, Phnom Penh Pochentong is the airport most travelers will use when flying to Phnom Penh from London Heathrow. Booking flights from London Heathrow to Pochentong (PNH) should be relatively easy as there are 0 daily inbound flights from London Heathrow from 13 different airlines.

Question 19

Can I find deals for flights from Heathrow to Phnom Penh that include hotel bookings?

Accepted Answer

Yes. In addition to deals on Heathrow to Phnom Penh flights, Cheapflights offers holiday packages that include both flights and hotel.

Question 20

How can I find direct flights from Heathrow to Phnom Penh?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Phnom Penh.

Question 21

Can I find deals for business class flights from Heathrow to Phnom Penh?

Accepted Answer

Yes. Cheapflights offers flight deals from Heathrow to Phnom Penh by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Question 22

How does Cheapflights help users find flights from Heathrow to Phnom Penh?

Accepted Answer

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Heathrow to Phnom Penh. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Question 23

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Phnom Penh?

Accepted Answer

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Phnom Penh from Heathrow.

Question 24

Can Cheapflights find flights from Heathrow to Phnom Penh with no change fees?

Accepted Answer

Yes! Cheapflights helps users easily find flights from Heathrow to Phnom Penh with no change fees.

Question 25

Can Cheapflights notify me if prices for flights from Heathrow to Phnom Penh become cheaper?

Accepted Answer

Not ready to book yet? You can track prices for flights from Heathrow to Phnom Penh on Cheapflights with our Price Alert feature and get notified when better prices are available.

Round-trip from	£483
One-way from	£395
Popular in	July
Cheapest in	November
Average price	£914

Airline	Cheapest	Average	Flexibility	On-time
Shenzhen Airlines	Cheapest£381	Average£447	FlexibilityNo cancel fee	On-time63%	Search Shenzhen Airlines flights
Air China	Cheapest£406	Average£500	FlexibilityNo cancel fee	On-time67%	Search Air China flights
China Southern	Cheapest£432	Average£550	FlexibilityNo cancel fee	On-time69%	Search China Southern flights
Etihad Airways	Cheapest£515	Average£596	FlexibilityNo cancel fee	On-time75%	Search Etihad Airways flights
China Eastern	Cheapest£562	Average£646	FlexibilityNo cancel fee	On-time62%	Search China Eastern flights
Singapore Airlines	Cheapest£591	Average£703	FlexibilityNo cancel fee	On-time81%	Search Singapore Airlines flights
Malaysia Airlines	Cheapest£595	Average£707	FlexibilityNo cancel fee	On-time67%	Search Malaysia Airlines flights
British Airways	Cheapest£646	Average£784	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Vietnam Airlines	Cheapest£656	Average£725	FlexibilityNo cancel fee	On-time81%	Search Vietnam Airlines flights
Cathay Pacific	Cheapest£672	Average£793	FlexibilityNo cancel fee	On-time72%	Search Cathay Pacific flights

Cheap flights from London Heathrow Airport to Phnom Penh from £395

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from London Heathrow to Phnom Penh Pochentong are usually found in November or May, booked 79 days in advance, depart on a Monday or Saturday and return on a Wednesday

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Cheapest flights from Heathrow to Phnom PenhExplore the most affordable flight options available from Heathrow to Phnom Penh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 8월 2025.

Explore the most affordable flight options available from Heathrow to Phnom Penh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 8월 2025.

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Best time to book a flight from Heathrow to Phnom Penh

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Everything you need to know about your flight from London Heathrow Airport to Phnom Penh

How far ahead should I book a flight from London Heathrow Airport to Phnom Penh?

What is the cheapest month to book a flight from London Heathrow Airport to Phnom Penh?

What is the cheapest time of day to fly from LHR to PNH?

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

How much does it cost for a return flight from London Heathrow Airport to Phnom Penh?

What’s the top stopover airport for flights from London Heathrow Airport to Phnom Penh?

What’s the fastest stopover option from London Heathrow Airport to Phnom Penh?

What’s the fastest stopover option from London Heathrow Airport to Phnom Penh?

Which airport typically offers the quickest stopover for flights from London Heathrow Airport to Phnom Penh?

Reviews of airlines servicing Phnom Penh

Read through reviews of airlines operating flights from London Heathrow Airport to Phnom Penh, such as Singapore Airlines, Thai Airways, andChina Southern. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Phnom Penh. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Phnom Penh from London Heathrow?

How long is the flight from London Heathrow Airport to Phnom Penh?

What are the cheapest airlines flying from London Heathrow Airport to Phnom Penh round-trip?

Can I find deals for flights from Heathrow to Phnom Penh that include hotel bookings?

How can I find direct flights from Heathrow to Phnom Penh?

Can I find deals for business class flights from Heathrow to Phnom Penh?

What is the cheapest month to book a flight from London Heathrow Airport to Phnom Penh?

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Alternative routes for Heathrow to Phnom Penh

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Top 10 airlines flying from Heathrow to Phnom Penh

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Can Cheapflights notify me if prices for flights from Heathrow to Phnom Penh become cheaper?

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Cheapest flights from Heathrow to Phnom Penh
Explore the most affordable flight options available from Heathrow to Phnom Penh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 8월 2025.