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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 20/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PNH
30 Mar — 6 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 25 March 2025.

Round-trip from

£503

One-way from

£312

Popular in

August

Cheapest in

November

Average price

£596
Air China
  • Air China
  • 7/6-21/6
  • 2 total stops
  • 46h 50m total
  • London to Cambodia
Search Deals
20/4
  • 20/4
  • 3 total stops
  • 33h 00m total
  • London to Cambodia
Search Deals
Highest demand for flights based on searches. 9% 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 March 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 25 March 2025.

Sat 7/620:25LHR - PNH
1 stop20h 40mAir China
Sat 21/600:20PNH - LHR
1 stop26h 10mAir China
Deal found 24/3£503
Thu 8/521:00LHR - PNH
2 stops21h 10mChina Southern
Thu 15/515:35PNH - LHR
1 stop33h 25mChina Southern
Deal found 23/3£506
Mon 5/521:20LHR - PNH
1 stop19h 55mChina Eastern
Mon 26/500:10PNH - LHR
1 stop24h 30mChina Eastern
Deal found 24/3£541
Mon 14/422:05LHR - PNH
1 stop31h 05mShenzhen Airlines
Thu 1/512:15PNH - LHR
1 stop37h 45mShenzhen Airlines
Deal found 24/3£554
Wed 23/416:15LHR - PNH
2 stops20h 00mMultiple Airlines
Wed 7/511:05PNH - LHR
3 stops33h 10mMultiple Airlines
Deal found 24/3£565
Wed 3/909:25LHR - PNH
1 stop26h 15mSingapore Airlines
Wed 17/918:55PNH - LHR
1 stop30h 35mSingapore Airlines
Deal found 24/3£623
Mon 21/422:10LHR - KOS
2 stops32h 50mMultiple Airlines
Mon 28/413:30KOS - LHR
2 stops35h 30mMultiple Airlines
Deal found 24/3£668
Wed 23/416:00LHR - PNH
2 stops18h 15mBritish Airways
Wed 7/518:20PNH - LHR
1 stop17h 05mBritish Airways
Deal found 24/3£682
Wed 17/918:55LHR - PNH
2 stops36h 05mVietnam Airlines
Wed 1/1020:45PNH - LHR
1 stop26h 10mVietnam Airlines
Deal found 24/3£686
Sat 15/1120:55LHR - PNH
2 stops30h 10mEtihad Airways
Sat 29/1115:20PNH - LHR
2 stops27h 45mEtihad Airways
Deal found 24/3£689
Wed 8/1021:10LHR - PNH
1 stop30h 40mChina Airlines
Fri 24/1010:50PNH - LHR
1 stop35h 40mChina Airlines
Deal found 24/3£708
Wed 8/1011:00LHR - PNH
1 stop24h 25mMalaysia Airlines
Sat 25/1018:20PNH - LHR
1 stop28h 05mMalaysia Airlines
Deal found 24/3£711

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 25 March 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

Sat 7/6

20:25-23:05

1 stop20h 40m

Phnom Penh Pochentong

Sat 21/6

00:20-20:30

1 stop26h 10m

£503

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Thu 8/5

21:00-00:10

2 stops21h 10m

Phnom Penh Pochentong

Thu 15/5

15:35-19:00

1 stop33h 25m

£506

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Mon 5/5

21:20-23:15

1 stop19h 55m

Phnom Penh Pochentong

Mon 26/5

00:10-18:40

1 stop24h 30m

£541

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Mon 14/4

22:05-11:10

1 stop31h 05m

Phnom Penh Pochentong

Thu 1/5

12:15-20:00

1 stop37h 45m

£554

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Wed 23/4

16:15-18:15

2 stops20h 00m

Phnom Penh Pochentong

Wed 7/5

11:05-14:15

3 stops33h 10m

£565

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Wed 3/9

09:25-17:40

1 stop26h 15m

Phnom Penh Pochentong

Wed 17/9

18:55-19:30

1 stop30h 35m

£623

LondonKrong Preah Sihanouk

LHR - KOS

LHRKOS

London Heathrow

Mon 21/4

22:10-13:00

2 stops32h 50m

Krong Preah Sihanouk Sihanoukville

Mon 28/4

13:30-19:00

2 stops35h 30m

£668

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Wed 23/4

16:00-16:15

2 stops18h 15m

Phnom Penh Pochentong

Wed 7/5

18:20-05:25

1 stop17h 05m

£682

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Wed 17/9

18:55-13:00

2 stops36h 05m

Phnom Penh Pochentong

Wed 1/10

20:45-16:55

1 stop26h 10m

£686

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Sat 6/9

21:10-16:05

1 stop36h 55m

Phnom Penh Pochentong

Sun 21/9

10:50-16:30

1 stop35h 40m

£716

Flights are sorted by cheapest return flights first.

Deals found on 24/3

Showing 1-10 of 24 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 25 March 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 25 March 2025.
To help decide which airline to fly from London to Cambodia, see what other customers have to say about China Airlines, Singapore Airlines and Emirates. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
China Airlines
8.2
Very Good
723 reviews
Check prices

Crew

8.5

Entertainment

8.0

Boarding

8.3

Food

7.8

Comfort

8.0

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence
China Airlines
8.2
Very Good
723 reviews
China Airlines
8.2
Very Good
723 reviews
Check prices

Crew

8.5

Entertainment

8.0

Boarding

8.3

Food

7.8

Comfort

8.0

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence
Singapore Airlines
8.1
Very Good
1,284 reviews
China Airlines
8.2
Very Good
723 reviews
Check prices

Crew

8.5

Entertainment

8.0

Boarding

8.3

Food

7.8

Comfort

8.0

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence
Emirates
8.0
Very Good
3,190 reviews
China Airlines
8.2
Very Good
723 reviews
Check prices

Crew

8.5

Entertainment

8.0

Boarding

8.3

Food

7.8

Comfort

8.0

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence
Thai Airways
7.8
Good
316 reviews
China Airlines
8.2
Very Good
723 reviews
Check prices

Crew

8.5

Entertainment

8.0

Boarding

8.3

Food

7.8

Comfort

8.0

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence
Vietnam Airlines
7.6
Good
192 reviews
China Airlines
8.2
Very Good
723 reviews
Check prices

Crew

8.5

Entertainment

8.0

Boarding

8.3

Food

7.8

Comfort

8.0

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence

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 £322 on Shenzhen Airlines. Other airlines that offer cheap prices include Singapore Airlines from £331 and China Southern from £361 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 25 March 2025.
AirlineCheapestAverageFlexibilityOn-time
Shenzhen AirlinesCheapest£397Average£469FlexibilityNo cancel feeOn-time63%
Search Shenzhen Airlines flights
China SouthernCheapest£422Average£553FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air ChinaCheapest£452Average£518FlexibilityNo cancel feeOn-time67%
Search Air China flights
China EasternCheapest£595Average£657FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Singapore AirlinesCheapest£630Average£748FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Vietnam AirlinesCheapest£633Average£834FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights
British AirwaysCheapest£670Average£871FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Malaysia AirlinesCheapest£671Average£770FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Cathay PacificCheapest£685Average£811FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
Qatar AirwaysCheapest£710Average£893FlexibilityNo 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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