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Phnom Penh

$535+ Cheap flights from Heathrow (LHR) to Phnom Penh (PNH)

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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PNH
may. 4 — may. 111
dom. 5/4
dom. 5/11
1 adult, Economy
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Cheapflights Tip: The best prices from London Heathrow to Phnom Penh Pochentong are usually found in March or November, booked 84 days in advance, depart on a Friday or Thursday and return on a Sunday

Cheap flight deals from Heathrow to Phnom Penh

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Phnom Penh (PNH). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated abril 29, 2025.

Most accurate provider

Flightnetwork
3 stars

Most trusted provider

Flightnetwork
3 stars

Round-trip from

$701
(Shenzhen Airlines)

One-way from

$535
(Kiwi.com)

Popular in

August

Cheapest in

March

Average price

$1,092
Provider with most accurate pricing for London Heathrow-Phnom Penh Pochentong flight deals.
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Provider most trusted by Cheapflights users for London Heathrow-Phnom Penh Pochentong flights.
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From London Heathrow to Phnom Penh Pochentong
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One-way flight from London Heathrow to Phnom Penh Pochentong
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($163 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($29 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Heathrow to Phnom Penh

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 abril 29, 2025.

This Shenzhen Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Shenzhen Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/2410:05 pmLHR - PNH
1 stop31h 05mShenzhen Airlines
jue. 5/2912:15 pmPNH - LHR
1 stop37h 45mShenzhen Airlines
Deal found 4/29$701
This Etihad Airways deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/119:00 amLHR - PNH
2 stops42h 05mEtihad Airways
jue. 12/47:25 pmPNH - LHR
2 stops23h 40mEtihad Airways
Deal found 4/29$743
This FlightHub deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 6/79:20 pmLHR - PNH
1 stop19h 55mChina Eastern
dom. 6/2212:40 pmPNH - LHR
2 stops60h 00mChina Eastern
Deal found 4/29$769
This Malaysia Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Malaysia Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/811:00 amLHR - PNH
1 stop17h 00mMalaysia Airlines
dom. 5/2511:10 amPNH - LHR
1 stop24h 45mMalaysia Airlines
Deal found 4/29$795
This oojo deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 5/1110:05 pmLHR - PNH
1 stop31h 05mMultiple Airlines
sáb. 5/3112:20 amPNH - LHR
1 stop23h 25mMultiple Airlines
Deal found 4/29$937
This Vietnam Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Vietnam Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 5/117:50 pmLHR - PNH
2 stops35h 10mVietnam Airlines
dom. 6/15:45 pmPNH - LHR
2 stops29h 20mVietnam Airlines
Deal found 4/29$940
This China Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/319:15 pmLHR - PNH
1 stop30h 20mChina Airlines
jue. 11/135:20 pmPNH - LHR
1 stop30h 45mChina Airlines
Deal found 4/29$956
This China Southern deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Southern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 5/1110:10 pmLHR - PNH
1 stop20h 00mChina Southern
dom. 6/13:35 pmPNH - LHR
2 stops28h 15mChina Southern
Deal found 4/29$983
This British Airways deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/84:00 pmLHR - PNH
1 stop18h 15mBritish Airways
jue. 5/296:20 pmPNH - LHR
1 stop17h 05mBritish Airways
Deal found 4/29$1,002
This Qatar Airways deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/243:35 pmLHR - PNH
2 stops18h 40mQatar Airways
jue. 5/295:40 pmPNH - LHR
2 stops26h 30mQatar Airways
Deal found 4/29$1,009
This oojo deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/188:35 pmLHR - PNH
1 stop34h 35mSingapore Airlines
jue. 9/182:05 pmPNH - LHR
1 stop31h 40mSingapore Airlines
Deal found 4/29$1,015
This Emirates deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/2710:00 pmLHR - PNH
2 stops35h 35mEmirates
lun. 11/108:35 pmPNH - LHR
2 stops30h 25mEmirates
Deal found 4/29$1,118

Cheapflights Fare Finder

Customize your flight search to find flights from Heathrow to Phnom Penh that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated abril 29, 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Phnom Penh that are best for you.

Fly from

Heathrow

Fly to

Phnom Penh

Route

Depart

Return

Price

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

sáb. 5/24

10:05 pm-11:10 am

1 stop31h 05m

Phnom Penh Pochentong

jue. 5/29

12:15 pm-8:00 pm

1 stop37h 45m

$701

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

sáb. 6/7

9:20 pm-11:15 pm

1 stop19h 55m

Phnom Penh Pochentong

dom. 6/22

12:40 pm-6:40 pm

2 stops60h 00m

$769

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

jue. 5/22

11:00 am-10:00 am

1 stop17h 00m

Phnom Penh Pochentong

dom. 6/8

11:10 am-5:55 am

1 stop24h 45m

$795

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

dom. 5/11

10:05 pm-11:10 am

1 stop31h 05m

Phnom Penh Pochentong

sáb. 5/31

12:20 am-5:45 pm

1 stop23h 25m

$937

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

dom. 5/11

7:50 pm-1:00 pm

2 stops35h 10m

Phnom Penh Pochentong

dom. 6/1

5:45 pm-5:05 pm

2 stops29h 20m

$940

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

dom. 5/11

10:10 pm-12:10 am

1 stop20h 00m

Phnom Penh Pochentong

dom. 6/1

3:35 pm-1:50 pm

2 stops28h 15m

$983

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

lun. 8/18

9:45 pm-8:35 am

2 stops28h 50m

Phnom Penh Pochentong

jue. 9/18

3:15 pm-7:00 am

2 stops21h 45m

$993

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

sáb. 5/24

1:45 pm-4:15 pm

2 stops20h 30m

Phnom Penh Pochentong

jue. 5/29

6:20 pm-5:25 am

1 stop17h 05m

$1,002

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

sáb. 5/24

3:35 pm-4:15 pm

2 stops18h 40m

Phnom Penh Pochentong

jue. 5/29

5:40 pm-2:10 pm

2 stops26h 30m

$1,009

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

lun. 8/18

8:35 pm-1:10 pm

1 stop34h 35m

Phnom Penh Pochentong

jue. 9/18

2:05 pm-3:45 pm

1 stop31h 40m

$1,015

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 20 results
1
2

Compare providers for flights from Heathrow to Phnom Penh

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Heathrow to Phnom Penh in April.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
oojoPrice Accuracy3 starsTrust Score*3 stars
FlightnetworkPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*2 stars
GotogatePrice Accuracy3 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on London Heathrow Airport-Phnom Penh flights, users find the pricing of Flightnetwork to be most consistent on Cheapflights vs. Flightnetwork Users can find the same prices on London Heathrow Airport-Phnom Penh flight deals on Cheapflights vs. Flightnetwork >95% of the time. Price accuracy is based on data collected from London Heathrow Airport-Phnom Penh flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London Heathrow Airport-Phnom Penh flights, Cheapflights users trust Flightnetwork the most. Flightnetwork has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London Heathrow Airport-Phnom Penh flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Heathrow to Phnom Penh

Have a flexible travel schedule? Discover the best time to fly to Phnom Penh from Heathrow with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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?

Use this chart to determine the optimal time to book a round-trip flight from Heathrow to Phnom Penh. Price data was last updated on April 25, 2025.

The best time to book flights from London Heathrow Airport to Phnom Penh is 84 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.

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

Currently, March is the cheapest month in which you can book a flight from London Heathrow Airport to Phnom Penh (average of $991). Flying from London Heathrow Airport to Phnom Penh in June is currently the most expensive (average of $1,582). 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.

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

Find hourly flight availability from Heathrow to Phnom Penh. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated abril 29, 2025.

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 afternoon, which can drop the price by up to 31% versus a flight at noon.

Rainfall in Phnom Penh by month

Plan your trip to Phnom Penh by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Phnom Penh ranges from 0.0 - 9.8 inches per month. October is typically the wettest month, when rainfall can reach 9.8 in. January is typically the driest time to visit Phnom Penh when rainfall is around 0.0 in.

Temperature in Phnom Penh by month

Plan your trip to Phnom Penh by taking into account the average temperature totals by month.

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 84.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 77.0 F).

Reviews of airlines servicing Phnom Penh

Get insights into the airlines that provide service to Phnom Penh. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Phnom Penh. Reviews last updated abril 29, 2025.
China Airlines
8.3
Very good
729 reviews

Crew

8.5

Entertainment

8.0

Boarding

8.3

Comfort

8.0

Food

7.8

Overall

8.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2025

YVR - TPE

I like the system, but the problem is the food , thre is no option, as a chef i don't recommend the food is worst we keep our hungry until taipe from vancouver
China Airlines
8.3
Very good
729 reviews
China Airlines
8.3
Very good
729 reviews

Crew

8.5

Entertainment

8.0

Boarding

8.3

Comfort

8.0

Food

7.8

Overall

8.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2025

YVR - TPE

I like the system, but the problem is the food , thre is no option, as a chef i don't recommend the food is worst we keep our hungry until taipe from vancouver
Singapore Airlines
8.1
Very good
1,292 reviews
China Airlines
8.3
Very good
729 reviews

Crew

8.5

Entertainment

8.0

Boarding

8.3

Comfort

8.0

Food

7.8

Overall

8.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2025

YVR - TPE

I like the system, but the problem is the food , thre is no option, as a chef i don't recommend the food is worst we keep our hungry until taipe from vancouver
Emirates
8.0
Very good
3,215 reviews
China Airlines
8.3
Very good
729 reviews

Crew

8.5

Entertainment

8.0

Boarding

8.3

Comfort

8.0

Food

7.8

Overall

8.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2025

YVR - TPE

I like the system, but the problem is the food , thre is no option, as a chef i don't recommend the food is worst we keep our hungry until taipe from vancouver
Cathay Pacific
7.5
Good
852 reviews
China Airlines
8.3
Very good
729 reviews

Crew

8.5

Entertainment

8.0

Boarding

8.3

Comfort

8.0

Food

7.8

Overall

8.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2025

YVR - TPE

I like the system, but the problem is the food , thre is no option, as a chef i don't recommend the food is worst we keep our hungry until taipe from vancouver
China Southern
7.5
Good
96 reviews
China Airlines
8.3
Very good
729 reviews

Crew

8.5

Entertainment

8.0

Boarding

8.3

Comfort

8.0

Food

7.8

Overall

8.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2025

YVR - TPE

I like the system, but the problem is the food , thre is no option, as a chef i don't recommend the food is worst we keep our hungry until taipe from vancouver

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?

    If you book a flight to Phnom Penh from London Heathrow, you will be flying to Pochentong, which is the city’s only airport. Phnom Penh Pochentong (PNH) is located 5.0 mi from the center of Phnom Penh. There are 0 flights from London Heathrow to Pochentong per day from 4 different airlines.

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

    According to our current data, Shenzhen Airlines ($701), China Eastern ($769), and Malaysia Airlines ($795) offers the cheapest pricing from London Heathrow Airport to Phnom Penh. Users have found that Shenzhen Airlines is 27% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from London Heathrow Airport to Phnom Penh one-way?

    $674 is the cheapest one-way deal found within the past few days, from Malaysia Airlines. You may also be able to find cheap deals on Vietnam Airlines and Qatar Airways, with prices starting from $737 and $1,050, respectively.

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

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

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

    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.

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

    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.

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

    Currently, March is the cheapest month in which you can book a flight from London Heathrow Airport to Phnom Penh (average of $991). Flying from London Heathrow Airport to Phnom Penh in June is currently the most expensive (average of $1,582). 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.

See more FAQs

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Complete your trip

Complete your trip to Phnom Penh by adding a car rental and/or hotel reservation to your travel itinerary.
Phnom Penh car rentals
Phnom Penh Pochentong Airport car rentals

Top 4 airlines flying from Heathrow to Phnom Penh

Discover the top 4 airlines that operate flights from Heathrow to Phnom Penh. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated abril 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest$620Average$719FlexibilityNo cancel feeOn-time69%
Air ChinaCheapest$641Average$1,165FlexibilityNo cancel feeOn-time67%
Singapore AirlinesCheapest$776Average$1,053FlexibilityNo cancel feeOn-time81%
Thai AirwaysCheapest$1,031Average$1,165FlexibilityNo cancel feeOn-time77%

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