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$317+ Cheap flights from Phnom Penh (PNH) to Heathrow (LHR)

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 2/13. Fares are subject to change and may not be available on all flights or dates of travel.
PNH — LHR
ene. 21 — ene. 281
mar. 1/21
mar. 1/28
1 adult, Economy
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The best prices from Phnom Penh Pochentong to London Heathrow are usually found in March or May, booked 70 days in advance, depart on a Sunday or Saturday and return on a Friday

Cheap flight deals from Phnom Penh to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Phnom Penh (PNH) to Heathrow (LHR). 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 enero 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$604
(Mytrip)

One-way from

$317
(Booking.com)

Popular in

July

Cheapest in

March

Average price

$1,009
Provider with most accurate pricing for Phnom Penh Pochentong-London Heathrow flight deals.
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Provider most trusted by Cheapflights users for Phnom Penh Pochentong-London Heathrow flights.
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From Phnom Penh Pochentong to London Heathrow
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One-way flight from Phnom Penh Pochentong to London Heathrow
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High demand for flights, 14% potential price rise
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Best time to find cheap flights, 4% potential price drop
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Average for round-trip flights in January 2025
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Find flight deals from Phnom Penh to Heathrow

Cheapest flights from Phnom Penh to Heathrow
Explore the most affordable flight options available from Phnom Penh to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 16, 2025.

This Mytrip deal was found by Cheapflights users on 1/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 2/1911:05 amPNH - LHR
2 stops33h 50mChina Eastern
mié. 2/269:00 pmLHR - PNH
2 stops30h 00mChina Eastern
Deal found 1/16$604
This OneTravel deal was found by Cheapflights users on 1/16. 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 OneTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 2/198:00 amPNH - LHR
1 stop17h 15mChina Southern
mié. 2/265:15 pmLHR - PNH
2 stops34h 35mChina Southern
Deal found 1/16$652
This Gotogate deal was found by Cheapflights users on 1/16. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 2/2312:15 pmPNH - LHR
1 stop37h 55mShenzhen Airlines
sáb. 3/19:10 pmLHR - PNH
1 stop31h 05mShenzhen Airlines
Deal found 1/16$690
This Gotogate deal was found by Cheapflights users on 1/16. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 2/1412:15 amPNH - LHR
1 stop24h 15mMultiple Airlines
sáb. 2/2210:00 pmLHR - PNH
1 stop33h 35mMultiple Airlines
Deal found 1/16$743
This Booking.com deal was found by Cheapflights users on 1/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 6/812:20 amPNH - LHR
1 stop26h 10mAir China
mar. 6/178:25 pmLHR - PNH
2 stops32h 45mAir China
Deal found 1/16$795
This Malaysia Airlines deal was found by Cheapflights users on 1/16. 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.
lun. 6/911:10 amPNH - LHR
1 stop35h 25mMalaysia Airlines
mar. 6/1711:00 amLHR - PNH
1 stop24h 25mMalaysia Airlines
Deal found 1/16$935
This Emirates deal was found by Cheapflights users on 1/16. 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.
vie. 8/18:50 pmPNH - LHR
2 stops25h 20mEmirates
dom. 9/72:25 pmLHR - PNH
2 stops20h 10mEmirates
Deal found 1/16$936
This Booking.com deal was found by Cheapflights users on 1/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 2/2212:30 amPNH - LHR
1 stop24h 35mAsiana Airlines
sáb. 3/18:10 pmLHR - PNH
1 stop20h 10mAsiana Airlines
Deal found 1/16$1,523
This Vietnam Airlines deal was found by Cheapflights users on 1/16. 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.
vie. 8/15:45 pmPNH - LHR
3 stops22h 45mVietnam Airlines
dom. 9/79:00 amLHR - PNH
3 stops22h 00mVietnam Airlines
Deal found 1/16$1,771
This FlightHub deal was found by Cheapflights users on 1/16. 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.
jue. 1/168:55 pmPNH - LHR
1 stop29h 40mThai Airways
sáb. 1/259:35 pmLHR - PNH
1 stop15h 00mThai Airways
Deal found 1/16$1,819
This FlightHub deal was found by Cheapflights users on 1/16. 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.
dom. 1/195:10 pmPNH - LHR
2 stops31h 15mQatar Airways
dom. 1/266:55 pmLHR - PNH
2 stops37h 30mQatar Airways
Deal found 1/16$3,002
This FlightHub deal was found by Cheapflights users on 1/16. 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.
dom. 1/197:05 pmPNH - LHR
1 stop26h 55mCathay Pacific
dom. 1/2611:00 amLHR - PNH
1 stop16h 25mCathay Pacific
Deal found 1/16$3,394

Find flights from Phnom Penh to Heathrow within your budget

Customize your flight search to find flights from Phnom Penh to Heathrow 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 enero 16, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

mié. 2/19

11:05 am-1:55 pm

2 stops33h 50m

London Heathrow

mié. 2/26

9:00 pm-10:00 am

3 stops30h 00m

$604

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

mié. 2/19

8:00 am-6:15 pm

1 stop17h 15m

London Heathrow

mié. 2/26

5:15 pm-10:50 am

2 stops34h 35m

$652

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

dom. 2/23

12:15 pm-7:10 pm

1 stop37h 55m

London Heathrow

sáb. 3/1

9:10 pm-11:15 am

1 stop31h 05m

$690

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

vie. 2/14

12:15 am-5:30 pm

1 stop24h 15m

London Heathrow

sáb. 2/22

10:00 pm-2:35 pm

1 stop33h 35m

$743

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

dom. 6/8

12:20 am-8:30 pm

1 stop26h 10m

London Heathrow

mar. 6/17

8:25 pm-11:10 am

2 stops32h 45m

$795

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

lun. 6/9

11:10 am-4:35 pm

1 stop35h 25m

London Heathrow

mar. 6/17

11:00 am-5:25 pm

1 stop24h 25m

$935

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

sáb. 4/12

8:50 pm-12:25 pm

2 stops21h 35m

London Heathrow

jue. 4/17

2:25 pm-4:35 pm

2 stops20h 10m

$1,075

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

sáb. 2/22

12:30 am-6:05 pm

1 stop24h 35m

London Heathrow

sáb. 3/1

8:10 pm-11:20 pm

1 stop20h 10m

$1,523

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

dom. 2/16

12:30 am-7:25 am

2 stops37h 55m

London Heathrow

dom. 2/23

1:45 pm-11:20 pm

2 stops50h 35m

$9,235

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

jue. 2/13

3:50 pm-6:15 pm

1 stop33h 25m

$317

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/15

Showing 1-10 of 19 results
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Compare providers for flights from Phnom Penh to Heathrow

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 Phnom Penh to Heathrow in January.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
JetabroadPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 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 Phnom Penh-London Heathrow Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Phnom Penh-London Heathrow Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Phnom Penh-London Heathrow Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Phnom Penh-London Heathrow Airport flights, Cheapflights users trust FlightHub the most. FlightHub 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 Phnom Penh-London Heathrow Airport 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 Phnom Penh to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Phnom Penh 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.

Travel insights for flights from Phnom Penh to Heathrow

Get recent, data-driven insights about flights from Phnom Penh to Heathrow including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from Phnom Penh to Heathrow. Price data was last updated on January 10, 2025.

To ensure you get the cheapest price possible for a flight from Phnom Penh to London Heathrow Airport, you should look to book at least 69 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, November is the cheapest month in which you can book a flight from Phnom Penh to London Heathrow Airport (average of $661). Flying from Phnom Penh to London Heathrow Airport in June is currently the most expensive (average of $1,137). 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 PNH to LHR?

Find hourly flight availability from Phnom Penh to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated enero 16, 2025.

It’s typically best to fly out from Phnom Penh to London Heathrow Airport in the morning. Doing so could potentially save you 27% on the flight price compared to flying at noon, which is usually more expensive.

Rainfall in Heathrow by month

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

In terms of precipitation, rainfall in London Heathrow Airport ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London Heathrow Airport when rainfall is around 1.6 in.

Temperature in Heathrow by month

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

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated enero 16, 2025.
Asiana Airlines
8.3
Very good
465 reviews

Entertainment

7.8

Boarding

8.4

Comfort

8.1

Crew

8.5

Food

8.1

Overall

8.3

Reviews

1 / 10

Next time I never flight with Asiana Airlines, not anymore, this is my first time also my last time

Asiana Airlines
8.3
Very good
465 reviews
Asiana Airlines
8.3
Very good
465 reviews

Entertainment

7.8

Boarding

8.4

Comfort

8.1

Crew

8.5

Food

8.1

Overall

8.3

Reviews

1 / 10

Next time I never flight with Asiana Airlines, not anymore, this is my first time also my last time

Emirates
8.1
Very good
3,350 reviews
Asiana Airlines
8.3
Very good
465 reviews

Entertainment

7.8

Boarding

8.4

Comfort

8.1

Crew

8.5

Food

8.1

Overall

8.3

Reviews

1 / 10

Next time I never flight with Asiana Airlines, not anymore, this is my first time also my last time

Vietnam Airlines
7.7
Good
210 reviews
Asiana Airlines
8.3
Very good
465 reviews

Entertainment

7.8

Boarding

8.4

Comfort

8.1

Crew

8.5

Food

8.1

Overall

8.3

Reviews

1 / 10

Next time I never flight with Asiana Airlines, not anymore, this is my first time also my last time

Cathay Pacific
7.5
Good
823 reviews
Asiana Airlines
8.3
Very good
465 reviews

Entertainment

7.8

Boarding

8.4

Comfort

8.1

Crew

8.5

Food

8.1

Overall

8.3

Reviews

1 / 10

Next time I never flight with Asiana Airlines, not anymore, this is my first time also my last time

Qatar Airways
7.5
Good
3,752 reviews
Asiana Airlines
8.3
Very good
465 reviews

Entertainment

7.8

Boarding

8.4

Comfort

8.1

Crew

8.5

Food

8.1

Overall

8.3

Reviews

1 / 10

Next time I never flight with Asiana Airlines, not anymore, this is my first time also my last time

Related info for your journey

Find useful and relevant information for your journey from Phnom Penh to Heathrow. 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 from for flights from Phnom Penh to London Heathrow?

    Most people fly from Phnom Penh Pochentong (PNH) if they book a flight from Phnom Penh to London Heathrow. On average, Pochentong has 0 outbound flights to London Heathrow per day from 8 airlines. Phnom Penh Pochentong is conveniently located just 5.0 mi from Phnom Penh’s city center.

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

    Cheapflights users have booked flights from Phnom Penh to London Heathrow Airport round-trip from $604. Other airlines that can offer you cheap pricing are China Southern, from $652, and Shenzhen Airlines, from $690. These flights start at 39% lower than the current average price 3 months from now.

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

    The cheapest airline one-way is China Southern, with whom users have recently found tickets for as low as $317. However, be on the lookout for offers from Shenzhen Airlines and Air China, as they are both options that can get you from Phnom Penh to London Heathrow Airport for a low price.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Phnom Penh to Heathrow 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 Phnom Penh to London Heathrow Airport?

    Currently, November is the cheapest month in which you can book a flight from Phnom Penh to London Heathrow Airport (average of $661). Flying from Phnom Penh to London Heathrow Airport in June is currently the most expensive (average of $1,137). 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

Traveling to a place near Phnom Penh?

Book flights to Phnom Penh if you plan to visit one of these locations
Hayes
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Thornton Heath
Harrow
Luton
Wembley
Canterbury
Northampton
Gatwick
Horley
Milton Keynes
Dover
Watford
Orpington
Stratford-upon-Avon
Croydon
Borehamwood
Bromley
Folkestone
Ilford

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Top 8 airlines flying from Phnom Penh to Heathrow

Discover the top 8 airlines that operate flights from Phnom Penh to Heathrow. 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 enero 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest$663Average$766FlexibilityNo cancel feeOn-time69%
China EasternCheapest$703Average$829FlexibilityNo cancel feeOn-time62%
Air ChinaCheapest$736Average$809FlexibilityNo cancel feeOn-time67%
Singapore AirlinesCheapest$921Average$1,109FlexibilityNo cancel feeOn-time81%
EmiratesCheapest$931Average$1,021FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$958Average$1,591FlexibilityNo cancel feeOn-time70%
Qatar AirwaysCheapest$993Average$1,562FlexibilityNo cancel feeOn-time68%
Thai AirwaysCheapest$1,129Average$1,300FlexibilityNo cancel feeOn-time77%
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