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Cheap flights from London Heathrow Airport to Cambodia from £312

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 6/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PNH
20 Apr — 27 Apr1
1 adult

Cheap flight deals from Heathrow to Cambodia

Keep the following information in mind while searching for Heathrow to Cambodia flight deals. Data was last updated 15 April 2025.

Round-trip from

£491

One-way from

£312

Popular in

August

Cheapest in

November

Average price

£803
China Southern
  • China Southern
  • 15/5-29/5
  • 2 total stops
  • 51h 20m total
  • London to Cambodia
Search Deals
6/5
  • 6/5
  • 3 total stops
  • 29h 45m total
  • London to Cambodia
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£58 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£13 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find flight deals from Heathrow to Cambodia

Cheapest flights from Heathrow to Cambodia
Explore the most affordable flight options available from Heathrow to Cambodia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 April 2025.

Tue 22/422:10LHR - PNH
1 stop20h 00mChina Southern
Tue 6/508:00PNH - LHR
2 stops38h 15mChina Southern
Deal found 14/4£491
Mon 27/1020:25LHR - PNH
1 stop19h 45mAir China
Sun 9/1100:25PNH - LHR
1 stop22h 30mAir China
Deal found 14/4£492
Sat 7/622:05LHR - PNH
1 stop31h 05mShenzhen Airlines
Sun 22/612:15PNH - LHR
1 stop37h 35mShenzhen Airlines
Deal found 14/4£498
Fri 30/522:05LHR - PNH
1 stop31h 05mMultiple Airlines
Thu 5/600:20PNH - LHR
1 stop26h 10mMultiple Airlines
Deal found 14/4£543
Fri 30/521:20LHR - PNH
3 stops32h 15mChina Eastern
Thu 5/600:10PNH - LHR
1 stop24h 30mChina Eastern
Deal found 14/4£578
Thu 8/509:25LHR - PNH
1 stop21h 45mSingapore Airlines
Sun 25/518:55PNH - LHR
1 stop26h 50mSingapore Airlines
Deal found 14/4£640
Thu 8/519:10LHR - PNH
1 stop15h 45mVietnam Airlines
Thu 29/507:05PNH - LHR
1 stop15h 50mVietnam Airlines
Deal found 14/4£672
Wed 17/916:00LHR - PNH
2 stops18h 15mQatar Airways
Wed 1/1017:40PNH - LHR
2 stops18h 45mQatar Airways
Deal found 14/4£730
Fri 13/611:00LHR - PNH
1 stop17h 00mMalaysia Airlines
Mon 23/618:20PNH - LHR
1 stop17h 35mMalaysia Airlines
Deal found 14/4£741
Thu 29/519:10LHR - KOS
1 stop32h 05mVietnam Airlines
Thu 5/610:15KOS - LHR
2 stops57h 30mVietnam Airlines
Deal found 14/4£794
Thu 29/521:20LHR - KOS
2 stops29h 55mMultiple Airlines
Thu 5/610:15KOS - LHR
2 stops38h 25mMultiple Airlines
Deal found 14/4£800

Cheapflights Fare Finder

Customise your flight search to find flights from Heathrow to Cambodia 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 858,174 searches. Data last updated 15 April 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Cambodia that are best for you.

Fly from

Heathrow

Fly to

Cambodia

Route

Depart

Return

Price

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Thu 15/5

22:10-14:30

1 stop34h 20m

Phnom Penh Pochentong

Thu 29/5

08:00-19:00

1 stop17h 00m

£491

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Sat 7/6

22:05-11:10

1 stop31h 05m

Phnom Penh Pochentong

Sun 22/6

12:15-19:50

1 stop37h 35m

£498

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Fri 30/5

22:05-11:10

1 stop31h 05m

Phnom Penh Pochentong

Thu 5/6

00:20-20:30

1 stop26h 10m

£543

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Sat 31/5

20:25-11:10

2 stops32h 45m

Phnom Penh Pochentong

Sat 7/6

12:15-17:45

2 stops35h 30m

£550

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Fri 30/5

21:20-11:35

3 stops32h 15m

Phnom Penh Pochentong

Thu 5/6

00:10-18:40

1 stop24h 30m

£578

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Thu 8/5

09:25-13:10

1 stop21h 45m

Phnom Penh Pochentong

Sun 25/5

18:55-15:45

1 stop26h 50m

£640

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Thu 8/5

19:10-16:55

1 stop15h 45m

Phnom Penh Pochentong

Thu 29/5

07:05-16:55

1 stop15h 50m

£672

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Wed 17/9

16:00-16:15

2 stops18h 15m

Phnom Penh Pochentong

Wed 1/10

17:40-06:25

2 stops18h 45m

£730

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Mon 18/8

21:45-08:35

2 stops28h 50m

Phnom Penh Pochentong

Thu 18/9

15:15-12:45

2 stops27h 30m

£735

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Fri 13/6

11:00-10:00

1 stop17h 00m

Phnom Penh Pochentong

Mon 23/6

18:20-05:55

1 stop17h 35m

£741

Flights are sorted by cheapest return flights first.

Deals found on 14/4

Showing 1-10 of 26 results
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Best time to book a flight from Heathrow to Cambodia

Have a flexible travel schedule? Discover the best time to fly to Cambodia from Heathrow with our price prediction graph.
Estimated return 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 Cambodia

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

Currently, September is the cheapest month in which you can book a flight from London Heathrow Airport to Cambodia (average of £689). Flying from London Heathrow Airport to Cambodia 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.

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

Find hourly flight availability from Heathrow to Cambodia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 April 2025.

When flying from London Heathrow Airport to Cambodia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Cambodia by month

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

In terms of precipitation, rainfall in Cambodia 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 Cambodia when rainfall is around 0.0 mm.

Temperature in Cambodia by month

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

If weather is an important factor for your trip to Cambodia, 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).

Reviews of airlines servicing Cambodia

Get insights into the airlines that provide service to Cambodia. 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 Cambodia. Reviews last updated 15 April 2025.
To help decide which airline to fly from London to Cambodia, see what other customers have to say about Singapore Airlines, Emirates and Thai Airways. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.1
Very Good
1,288 reviews
Check prices

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Overall

8.1

Food

7.7

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles
Singapore Airlines
8.1
Very Good
1,288 reviews
Singapore Airlines
8.1
Very Good
1,288 reviews
Check prices

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Overall

8.1

Food

7.7

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles
Emirates
8.0
Very Good
3,198 reviews
Singapore Airlines
8.1
Very Good
1,288 reviews
Check prices

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Overall

8.1

Food

7.7

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles
Thai Airways
7.7
Good
323 reviews
Singapore Airlines
8.1
Very Good
1,288 reviews
Check prices

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Overall

8.1

Food

7.7

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles
Vietnam Airlines
7.6
Good
194 reviews
Singapore Airlines
8.1
Very Good
1,288 reviews
Check prices

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Overall

8.1

Food

7.7

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles
Cathay Pacific
7.5
Good
846 reviews
Singapore Airlines
8.1
Very Good
1,288 reviews
Check prices

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

8.0

Overall

8.1

Food

7.7

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles

Related info for your journey

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

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

    One-way options have recently been found by users for as low as £320 on Shenzhen Airlines. Other airlines that offer cheap prices include Singapore Airlines from £334 and Air China from £368 one-way.

  • What are the most popular routes from London Heathrow Airport to Cambodia?

    Most travelers choose London Heathrow - Phnom Penh Pochentong, London Heathrow - Krong Preah Sihanouk Sihanoukville or London Heathrow - Siem Reap when deciding on the best route from London Heathrow Airport to Cambodia.

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

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

  • How can I find direct flights from Heathrow to Cambodia?

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

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

    Yes. Cheapflights offers flight deals from Heathrow to Cambodia 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 Cambodia?

    Currently, September is the cheapest month in which you can book a flight from London Heathrow Airport to Cambodia (average of £689). Flying from London Heathrow Airport to Cambodia 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Heathrow to Cambodia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Heathrow to Cambodia

Discover the top 10 airlines that operate flights from Heathrow to Cambodia. 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 858,174 searches. Data last updated 15 April 2025.
AirlineCheapestAverageFlexibilityOn-time
Shenzhen AirlinesCheapest£390Average£462FlexibilityNo cancel feeOn-time63%
Search Shenzhen Airlines flights
Air ChinaCheapest£444Average£507FlexibilityNo cancel feeOn-time67%
Search Air China flights
China SouthernCheapest£453Average£562FlexibilityNo cancel feeOn-time69%
Search China Southern flights
China EasternCheapest£585Average£646FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Singapore AirlinesCheapest£617Average£727FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Vietnam AirlinesCheapest£622Average£783FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights
Malaysia AirlinesCheapest£660Average£757FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
British AirwaysCheapest£661Average£867FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Cathay PacificCheapest£673Average£793FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
Qatar AirwaysCheapest£716Average£853FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Heathrow to Cambodia?

Deals for Heathrow to Cambodia flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Heathrow to Cambodia for you. Better yet — we are completely free to use.

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

Need flexible booking options for your flight to Cambodia from Heathrow? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Of course! You can now track prices for flights from Heathrow to Cambodia and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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