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Cheap flights from London Heathrow Airport to Cambodia from £316

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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PNH
18 juin — 25 juin1
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 13 juin 2025.

Round-trip from

£506

One-way from

£316

Popular in

December

Cheapest in

November

Average price

£605
Etihad Airways
  • Etihad Airways
  • 3/11-17/11
  • 2 total stops
  • 49h 45m total
  • London to Cambodia
Search Deals
Shenzhen Airlines
  • Shenzhen Airlines
  • 1/10
  • 1 total stop
  • 31h 05m total
  • London to Cambodia
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2025
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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 13 juin 2025.

ven. 7/1121:30LHR - PNH
2 stops34h 05mChina Southern
lun. 8/1208:00PNH - LHR
1 stop17h 15mChina Southern
Deal found 10/6£505
lun. 3/1120:55LHR - PNH
1 stop14h 35mEtihad Airways
lun. 17/1107:55PNH - LHR
1 stop35h 10mEtihad Airways
Deal found 11/6£506
lun. 16/622:05LHR - PNH
1 stop31h 05mShenzhen Airlines
dim. 22/612:15PNH - LHR
1 stop37h 35mShenzhen Airlines
Deal found 11/6£509
dim. 2/1117:40LHR - PNH
1 stop22h 30mAir China
sam. 29/1100:25PNH - LHR
1 stop22h 30mAir China
Deal found 10/6£514
dim. 15/621:20LHR - PNH
1 stop19h 55mChina Eastern
dim. 22/612:40PNH - LHR
2 stops60h 00mChina Eastern
Deal found 11/6£562
ven. 7/1121:10LHR - PNH
1 stop31h 05mMultiple Airlines
dim. 23/1100:15PNH - LHR
1 stop24h 15mMultiple Airlines
Deal found 12/6£564
ven. 5/1210:25LHR - PNH
1 stop16h 25mMalaysia Airlines
jeu. 15/118:30PNH - LHR
1 stop18h 05mMalaysia Airlines
Deal found 11/6£591
mer. 3/922:05LHR - PNH
1 stop28h 35mSingapore Airlines
dim. 21/918:55PNH - LHR
1 stop26h 50mSingapore Airlines
Deal found 10/6£632
mer. 25/622:05LHR - KOS
2 stops32h 55mMultiple Airlines
mar. 1/712:15KOS - LHR
2 stops37h 45mMultiple Airlines
Deal found 12/6£751

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 13 juin 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

ven. 7/11

21:30-14:35

2 stops34h 05m

Phnom Penh Pochentong

lun. 8/12

08:00-18:15

1 stop17h 15m

£505

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

lun. 3/11

20:55-18:30

1 stop14h 35m

Phnom Penh Pochentong

lun. 17/11

07:55-12:05

1 stop35h 10m

£506

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

dim. 2/11

17:40-23:10

1 stop22h 30m

Phnom Penh Pochentong

sam. 29/11

00:25-15:55

1 stop22h 30m

£514

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

mer. 3/9

22:05-11:10

1 stop31h 05m

Phnom Penh Pochentong

dim. 21/9

12:15-19:50

1 stop37h 35m

£541

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

ven. 7/11

21:10-11:15

1 stop31h 05m

Phnom Penh Pochentong

dim. 23/11

00:15-17:30

1 stop24h 15m

£564

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

ven. 5/12

10:25-09:50

1 stop16h 25m

Phnom Penh Pochentong

jeu. 15/1

18:30-05:35

1 stop18h 05m

£591

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

mer. 3/9

22:05-08:40

1 stop28h 35m

Phnom Penh Pochentong

dim. 21/9

18:55-15:45

1 stop26h 50m

£632

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

lun. 23/6

21:20-23:15

1 stop19h 55m

Phnom Penh Pochentong

ven. 4/7

00:10-18:40

1 stop24h 30m

£701

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

ven. 12/9

19:35-10:00

2 stops32h 25m

Phnom Penh Pochentong

dim. 28/9

18:20-05:25

1 stop17h 05m

£704

LondonKrong Preah Sihanouk

LHR - KOS

LHRKOS

London Heathrow

mer. 25/6

22:05-13:00

2 stops32h 55m

Krong Preah Sihanouk Sihanoukville

mar. 1/7

12:15-20:00

2 stops37h 45m

£751

Flights are sorted by cheapest return flights first.

Deals found on 11/6

Showing 1-10 of 25 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 £1,203). 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 13 juin 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 13 juin 2025.
To help decide which airline to fly from London to Cambodia, see what other customers have to say about Emirates, Singapore Airlines and Austrian Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Emirates
8.1
Very Good
3,265 reviews
Check prices

Overall

8.1

Food

7.8

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
10.0
Excellent

Steven,Feb 2025

GLA - DXB

Although I was in economy it made no difference where the staff were concerned they were attentive and pleasant throughout the flight maybe one day I'll get the chance to see if there's a difference in business or 1st class service but in truth for the way I was treated I can only see the menu being an upgrade as the staff don't need upgrading and are indeed the biggest asset on a long journey a credit to the company.
Emirates
8.1
Very Good
3,265 reviews
Emirates
8.1
Very Good
3,265 reviews
Check prices

Overall

8.1

Food

7.8

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
10.0
Excellent

Steven,Feb 2025

GLA - DXB

Although I was in economy it made no difference where the staff were concerned they were attentive and pleasant throughout the flight maybe one day I'll get the chance to see if there's a difference in business or 1st class service but in truth for the way I was treated I can only see the menu being an upgrade as the staff don't need upgrading and are indeed the biggest asset on a long journey a credit to the company.
Singapore Airlines
8.1
Very Good
1,302 reviews
Emirates
8.1
Very Good
3,265 reviews
Check prices

Overall

8.1

Food

7.8

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
10.0
Excellent

Steven,Feb 2025

GLA - DXB

Although I was in economy it made no difference where the staff were concerned they were attentive and pleasant throughout the flight maybe one day I'll get the chance to see if there's a difference in business or 1st class service but in truth for the way I was treated I can only see the menu being an upgrade as the staff don't need upgrading and are indeed the biggest asset on a long journey a credit to the company.
Austrian Airlines
7.6
Good
802 reviews
Emirates
8.1
Very Good
3,265 reviews
Check prices

Overall

8.1

Food

7.8

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
10.0
Excellent

Steven,Feb 2025

GLA - DXB

Although I was in economy it made no difference where the staff were concerned they were attentive and pleasant throughout the flight maybe one day I'll get the chance to see if there's a difference in business or 1st class service but in truth for the way I was treated I can only see the menu being an upgrade as the staff don't need upgrading and are indeed the biggest asset on a long journey a credit to the company.
Cathay Pacific
7.6
Good
892 reviews
Emirates
8.1
Very Good
3,265 reviews
Check prices

Overall

8.1

Food

7.8

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
10.0
Excellent

Steven,Feb 2025

GLA - DXB

Although I was in economy it made no difference where the staff were concerned they were attentive and pleasant throughout the flight maybe one day I'll get the chance to see if there's a difference in business or 1st class service but in truth for the way I was treated I can only see the menu being an upgrade as the staff don't need upgrading and are indeed the biggest asset on a long journey a credit to the company.
SWISS
7.5
Good
1,624 reviews
Emirates
8.1
Very Good
3,265 reviews
Check prices

Overall

8.1

Food

7.8

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
10.0
Excellent

Steven,Feb 2025

GLA - DXB

Although I was in economy it made no difference where the staff were concerned they were attentive and pleasant throughout the flight maybe one day I'll get the chance to see if there's a difference in business or 1st class service but in truth for the way I was treated I can only see the menu being an upgrade as the staff don't need upgrading and are indeed the biggest asset on a long journey a credit to the company.

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 £316 on Shenzhen Airlines. Other airlines that offer cheap prices include Air China from £373 and China Southern from £376 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 £1,203). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 13 juin 2025.
AirlineCheapestAverageFlexibilityOn-time
Shenzhen AirlinesCheapest£378Average£455FlexibilityNo cancel feeOn-time63%
Search Shenzhen Airlines flights
Air ChinaCheapest£421Average£490FlexibilityNo cancel feeOn-time67%
Search Air China flights
China SouthernCheapest£430Average£543FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Etihad AirwaysCheapest£512Average£589FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
China EasternCheapest£557Average£625FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Singapore AirlinesCheapest£589Average£713FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Malaysia AirlinesCheapest£590Average£718FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Vietnam AirlinesCheapest£603Average£742FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights
British AirwaysCheapest£640Average£824FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Cathay PacificCheapest£651Average£771FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific 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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