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 $675. Other airlines that can offer you cheap pricing are Shenzhen Airlines, from $704, and China Eastern, from $731. These flights start at 34% 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 Shenzhen Airlines, with whom users have recently found tickets for as low as $333. However, be on the lookout for offers from China Eastern and China Southern, as they are both options that can get you from Phnom Penh to London Heathrow Airport for a low price.

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

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

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

Before booking your flight from Phnom Penh to London Heathrow Airport check out the most popular airlines for this route: British Airways, Air China or China Southern.

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

Departing on a Saturday is a good option for securing a great price. You can expect to save up to 60% when planning your travel around this day of the week.

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

Users have found that booking a flight from Phnom Penh to London Heathrow Airport at least 45 days early can save you up to 46% on average compared to booking a flight this week. If booking 45 days before your flight isn’t an option for you, users have found flights from Phnom Penh to London Heathrow Airport for as little as $770 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 $1,260 for flights departing within the next 3 days.

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

Due to multiple factors, expect to potentially pay more when booking in July. For low rates, May can be a great choice for travel to London Heathrow Airport. Flights to London Heathrow Airport from Phnom Penh in May are about $963 on average during May, but can be found for as low as $638.

Most accurate provider : When it comes to deals on Phnom Penh-London Heathrow Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Phnom Penh-London Heathrow Airport flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

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 9 airlines. Phnom Penh Pochentong is conveniently located just 5.0 mi from Phnom Penh’s city center.

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.

$333+ Flights from Phnom Penh to London Heathrow Airport

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Find cheap flights from Phnom Penh to Heathrow with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Phnom Penh Pochentong to London Heathrow are usually found in October or March, booked 21 days in advance, depart on a Sunday or Saturday and return on a Friday

Cheap flight deals from Phnom Penh to Heathrow

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$675 (Gotogate)
One-way from	$333 (Shenzhen Airlines)
Popular in	July
Cheapest in	October
Average price	$1,161

Provider with most accurate pricing for Phnom Penh Pochentong-London Heathrow flight deals.

Search Deals

Provider most trusted by Cheapflights users for Phnom Penh Pochentong-London Heathrow flights.

Search Deals

From Phnom Penh Pochentong to London Heathrow

Search Deals

One-way flight from Phnom Penh Pochentong to London Heathrow

Search Deals

Highest demand for flights based on searches. 9% potential increase in price ($105 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($42 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 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 avril 17, 2025.

sam. 5/103:35 pmPNH - LHR

1 stop33h 25mChina Southern

ven. 5/169:00 pmLHR - PNH

2 stops31h 40mChina Southern

Deal found 4/16

$675

mar. 6/312:15 pmPNH - LHR

1 stop37h 45mShenzhen Airlines

lun. 6/2310:05 pmLHR - PNH

1 stop31h 05mShenzhen Airlines

Deal found 4/17

$704

jeu. 6/1212:20 amPNH - LHR

1 stop26h 10mMultiple Airlines

dim. 6/2210:05 pmLHR - PNH

1 stop31h 05mMultiple Airlines

Deal found 4/16

$724

sam. 5/2412:40 pmPNH - LHR

2 stops36h 00mChina Eastern

sam. 5/319:20 pmLHR - PNH

1 stop19h 55mChina Eastern

Deal found 4/16

$731

mar. 6/312:20 amPNH - LHR

1 stop23h 25mAir China

lun. 6/238:25 pmLHR - PNH

1 stop20h 40mAir China

Deal found 4/17

$765

lun. 11/245:10 pmPNH - LHR

2 stops26h 00mQatar Airways

lun. 12/12:55 pmLHR - PNH

2 stops17h 30mQatar Airways

Deal found 4/17

$951

sam. 11/2210:55 amPNH - LHR

2 stops32h 40mFinnair

dim. 11/3010:20 amLHR - PNH

2 stops25h 15mFinnair

Deal found 4/17

$994

jeu. 6/128:50 pmPNH - LHR

2 stops23h 35mEmirates

jeu. 6/269:05 amLHR - PNH

2 stops25h 30mEmirates

Deal found 4/17

$1,000

mer. 6/1111:55 pmPNH - LHR

1 stop24h 55mAsiana Airlines

mer. 6/258:40 pmLHR - PNH

1 stop20h 15mAsiana Airlines

Deal found 4/17

$1,028

lun. 6/911:25 amPNH - LHR

1 stop24h 15mCathay Pacific

lun. 6/236:20 pmLHR - PNH

1 stop33h 55mCathay Pacific

Deal found 4/17

$1,047

lun. 6/97:25 pmPNH - LHR

2 stops18h 55mAustrian Airlines

dim. 6/227:30 pmLHR - PNH

2 stops17h 05mAustrian Airlines

Deal found 4/17

$1,129

Best flights from Phnom Penh to Heathrow
Discover carefully curated flight deals from Phnom Penh to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated avril 17, 2025.

sam. 5/103:35 pmPNH - LHR

1 stop33h 25mChina Southern

ven. 5/169:00 pmLHR - PNH

2 stops31h 40mChina Southern

Deal found 4/16

$675

mar. 6/312:15 pmPNH - LHR

1 stop37h 45mShenzhen Airlines

lun. 6/2310:05 pmLHR - PNH

1 stop31h 05mShenzhen Airlines

Deal found 4/17

$704

jeu. 6/1212:20 amPNH - LHR

1 stop26h 10mMultiple Airlines

dim. 6/2210:05 pmLHR - PNH

1 stop31h 05mMultiple Airlines

Deal found 4/16

$724

sam. 5/2412:40 pmPNH - LHR

2 stops36h 00mChina Eastern

sam. 5/319:20 pmLHR - PNH

1 stop19h 55mChina Eastern

Deal found 4/16

$731

mar. 6/312:20 amPNH - LHR

1 stop23h 25mAir China

lun. 6/238:25 pmLHR - PNH

1 stop20h 40mAir China

Deal found 4/17

$765

mer. 6/45:40 pmPNH - LHR

2 stops18h 45mQatar Airways

lun. 6/233:05 pmLHR - PNH

2 stops19h 10mQatar Airways

Deal found 4/17

$956

jeu. 6/128:50 pmPNH - LHR

2 stops23h 35mEmirates

jeu. 6/269:05 amLHR - PNH

2 stops25h 30mEmirates

Deal found 4/17

$1,000

mer. 6/1111:55 pmPNH - LHR

1 stop24h 55mAsiana Airlines

mer. 6/258:40 pmLHR - PNH

1 stop20h 15mAsiana Airlines

Deal found 4/17

$1,028

lun. 5/57:25 pmPNH - LHR

2 stops32h 45mFinnair

lun. 5/197:30 amLHR - PNH

2 stops19h 05mFinnair

Deal found 4/17

$1,043

lun. 6/911:25 amPNH - LHR

1 stop24h 15mCathay Pacific

lun. 6/236:20 pmLHR - PNH

1 stop33h 55mCathay Pacific

Deal found 4/17

$1,047

lun. 6/97:25 pmPNH - LHR

2 stops18h 55mAustrian Airlines

dim. 6/227:30 pmLHR - PNH

2 stops17h 05mAustrian Airlines

Deal found 4/17

$1,129

lun. 5/55:10 pmPNH - LHR

1 stop29h 20mChina Airlines

lun. 5/199:10 pmLHR - PNH

1 stop30h 40mChina Airlines

Deal found 4/17

$1,177

Last-minute flights from Phnom Penh to Heathrow
Discover last-minute flight deals from Phnom Penh to Heathrow. Data last updated avril 17, 2025 and is based on user searches.

jeu. 4/2412:15 pmPNH - LHR

1 stop37h 45mShenzhen Airlines

ven. 4/2510:05 pmLHR - PNH

1 stop31h 05mShenzhen Airlines

Deal found 4/16

$1,348

jeu. 4/245:40 pmPNH - LHR

3 stops25h 00mQatar Airways

ven. 4/253:05 pmLHR - PNH

2 stops19h 10mQatar Airways

Deal found 4/16

$1,891

jeu. 4/246:55 pmPNH - LHR

2 stops19h 20mLufthansa

ven. 4/251:45 pmLHR - PNH

2 stops22h 50mLufthansa

Deal found 4/16

$1,934

jeu. 4/245:45 pmPNH - LHR

3 stops26h 00mVietnam Airlines

ven. 4/256:45 pmLHR - PNH

3 stops36h 15mVietnam Airlines

Deal found 4/16

$2,407

sam. 5/38:50 pmPNH - LHR

2 stops21h 35mEmirates

dim. 5/182:20 pmLHR - PNH

2 stops20h 15mEmirates

Deal found 4/16

$1,460

lun. 5/57:25 pmPNH - LHR

2 stops32h 45mFinnair

lun. 5/197:30 amLHR - PNH

2 stops19h 05mFinnair

Deal found 4/17

$1,043

lun. 5/55:10 pmPNH - LHR

1 stop29h 20mChina Airlines

lun. 5/199:10 pmLHR - PNH

1 stop30h 40mChina Airlines

Deal found 4/17

$1,177

lun. 5/55:40 pmPNH - LHR

3 stops22h 10mBritish Airways

lun. 5/194:00 pmLHR - PNH

2 stops18h 15mBritish Airways

Deal found 4/16

$1,562

sam. 5/103:35 pmPNH - LHR

1 stop33h 25mChina Southern

ven. 5/169:00 pmLHR - PNH

2 stops31h 40mChina Southern

Deal found 4/16

$675

sam. 5/1012:15 pmPNH - LHR

1 stop37h 45mShenzhen Airlines

ven. 5/1610:05 pmLHR - PNH

1 stop31h 05mShenzhen Airlines

Deal found 4/16

$705

sam. 5/109:55 pmPNH - LHR

2 stops28h 05mMultiple Airlines

ven. 5/1612:30 pmLHR - PNH

2 stops23h 45mMultiple Airlines

Deal found 4/16

$834

ven. 5/165:45 pmPNH - LHR

3 stops22h 45mVietnam Airlines

ven. 5/239:00 amLHR - PNH

3 stops22h 00mVietnam Airlines

Deal found 4/16

$1,999

One-way flights from Phnom Penh to Heathrow
Search for one-way flight options from Phnom Penh to Heathrow. Find affordable one-way fares based on user searches. Data last updated avril 17, 2025.

dim. 6/112:15 pmPNH - LHR

1 stop37h 35mShenzhen Airlines

Deal found 4/17

$333

mar. 5/612:10 amPNH - LHR

1 stop24h 30mChina Eastern

Deal found 4/17

$334

jeu. 5/298:00 amPNH - LHR

1 stop17h 00mChina Southern

Deal found 4/17

$341

jeu. 5/2912:15 pmPNH - LHR

2 stops38h 15mAir China

Deal found 4/17

$384

lun. 6/26:00 pmPNH - LHR

2 stops32h 55mXiamenAir

Deal found 4/17

$412

dim. 6/2911:10 amPNH - LHR

2 stops38h 00mMultiple Airlines

Deal found 4/17

$424

dim. 7/139:40 amPNH - LHR

1 stop15h 30mThai Airways

Deal found 4/16

$499

dim. 7/138:50 pmPNH - LHR

2 stops25h 20mEmirates

Deal found 4/16

$571

mar. 5/611:10 amPNH - LHR

1 stop35h 25mMalaysia Airlines

Deal found 4/17

$612

ven. 5/309:40 amPNH - LHR

2 stops37h 00mTurkish Airlines

Deal found 4/17

$640

mar. 5/65:45 pmPNH - LHR

3 stops53h 10mVietnam Airlines

Deal found 4/17

$689

jeu. 5/295:40 pmPNH - LHR

3 stops22h 40mQatar Airways

Deal found 4/17

$882

Cheapflights Fare Finder

Use the filters below to find and compare flights from Phnom Penh to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

sam. 5/10

3:35 pm-7:00 pm

1 stop33h 25m

London Heathrow

ven. 5/16

9:00 pm-10:40 am

2 stops31h 40m

$675

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

mar. 6/3

12:15 pm-8:00 pm

1 stop37h 45m

London Heathrow

lun. 6/23

10:05 pm-11:10 am

1 stop31h 05m

$704

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

jeu. 6/12

12:20 am-8:30 pm

1 stop26h 10m

London Heathrow

dim. 6/22

10:05 pm-11:10 am

1 stop31h 05m

$724

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

sam. 5/24

12:40 pm-6:40 pm

2 stops36h 00m

London Heathrow

sam. 5/31

9:20 pm-11:15 pm

1 stop19h 55m

$731

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

mar. 6/3

12:20 am-5:45 pm

1 stop23h 25m

London Heathrow

lun. 6/23

8:25 pm-11:05 pm

1 stop20h 40m

$765

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

mer. 6/4

5:40 pm-6:25 am

2 stops18h 45m

London Heathrow

lun. 6/23

3:05 pm-4:15 pm

2 stops19h 10m

$956

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

jeu. 6/12

8:50 pm-2:25 pm

2 stops23h 35m

London Heathrow

jeu. 6/26

9:05 am-4:35 pm

2 stops25h 30m

$1,000

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

mer. 6/11

11:55 pm-6:50 pm

1 stop24h 55m

London Heathrow

mer. 6/25

8:40 pm-10:55 pm

1 stop20h 15m

$1,028

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

lun. 5/5

7:25 pm-10:10 pm

2 stops32h 45m

London Heathrow

lun. 5/19

7:30 am-8:35 am

2 stops19h 05m

$1,043

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

lun. 6/9

11:25 am-5:40 am

1 stop24h 15m

London Heathrow

lun. 6/23

6:20 pm-10:15 am

1 stop33h 55m

$1,047

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 25 results

Compare providers for flights from Phnom Penh to Heathrow

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 April.

Provider	Price Accuracy	Trust Score*
eDreams	Price Accuracy3 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
Gotogate	Price Accuracy3 stars	Trust Score*2 stars
Trip.com	Price Accuracy1 star	Trust Score*3 stars
CheapTicketsDeal	Price Accuracy3 stars	Trust 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Phnom Penh-London Heathrow Airport flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

Cheapflights Insights

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

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

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 21 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 $1,110). 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?

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

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

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

Read through reviews of airlines operating flights from Phnom Penh to London, such as China Airlines, Asiana Airlines and Emirates. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

China Airlines

8.2

Very good

729 reviews

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

8.2

Very good

729 reviews

China Airlines

8.2

Very good

729 reviews

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

Asiana Airlines

8.2

Very good

438 reviews

China Airlines

8.2

Very good

729 reviews

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

3,200 reviews

China Airlines

8.2

Very good

729 reviews

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

Thai Airways

7.7

Good

323 reviews

China Airlines

8.2

Very good

729 reviews

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

Finnair

7.6

Good

1,269 reviews

China Airlines

8.2

Very good

729 reviews

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

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 9 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 $675. Other airlines that can offer you cheap pricing are Shenzhen Airlines, from $704, and China Eastern, from $731. These flights start at 34% 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 Shenzhen Airlines, with whom users have recently found tickets for as low as $333. However, be on the lookout for offers from China Eastern and China Southern, 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 $1,110). 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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Top 9 airlines flying from Phnom Penh to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
China Eastern	Cheapest$633	Average$862	FlexibilityNo cancel fee	On-time62%
China Southern	Cheapest$663	Average$758	FlexibilityNo cancel fee	On-time69%
Air China	Cheapest$706	Average$858	FlexibilityNo cancel fee	On-time67%
Singapore Airlines	Cheapest$921	Average$1,180	FlexibilityNo cancel fee	On-time81%
Emirates	Cheapest$929	Average$1,030	FlexibilityNo cancel fee	On-time75%
British Airways	Cheapest$958	Average$1,591	FlexibilityNo cancel fee	On-time70%
Qatar Airways	Cheapest$993	Average$1,562	FlexibilityNo cancel fee	On-time68%
Malaysia Airlines	Cheapest$999	Average$1,397	FlexibilityNo cancel fee	On-time67%
Thai Airways	Cheapest$1,095	Average$1,269	FlexibilityNo cancel fee	On-time77%

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$333+ 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 6/1. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheapflights Tip: The best prices from Phnom Penh Pochentong to London Heathrow are usually found in October or March, booked 21 days in advance, depart on a Sunday or Saturday and return on a Friday

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Find flight deals from Phnom Penh to Heathrow

Cheapest flights from Phnom Penh to HeathrowExplore 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 avril 17, 2025.

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 avril 17, 2025.

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Use the filters below to find and compare flights from Phnom Penh to London Heathrow Airport that are best for you.

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 April.

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.

Cheapflights Insights

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

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 April 11, 2025.

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

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 avril 17, 2025.

Rainfall in Heathrow by month

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

Temperature in Heathrow by month

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

Reviews of airlines servicing Heathrow

Read through reviews of airlines operating flights from Phnom Penh to London, such as China Airlines, Asiana Airlines and Emirates. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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

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

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

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

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

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Top 9 airlines flying from Phnom Penh to Heathrow

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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 avril 17, 2025.