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 £319 on Shenzhen Airlines. Other airlines that offer cheap prices include China Southern from £378 and China Eastern from £382 one-way.

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.

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).

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.

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

Consider British Airways, Air China or Cathay Pacific when booking your flight. These represent the most popular airlines when flying from London Heathrow Airport to Cambodia.

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

Travelers have found it’s best to book a flight 54 days in advance to save up to 16% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 54 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from London Heathrow Airport to Cambodia 1-2 weeks in advance for as low as £522, or £802 for flights within the next 24 hours.

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

Our data shows that November tends to be the cheapest month to fly to Cambodia from London Heathrow Airport. Users have commonly found prices around £647 for the month, but tickets can be as low as £402. Due to multiple factors, prepare for potentially higher prices in December.

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.

£803+ Flights from London Heathrow Airport to Cambodia

Cheap flight deals from Heathrow to Cambodia

Round-trip from	£520
One-way from	£312
Popular in	December
Cheapest in	November
Average price	£599

China Southern
7/11-22/11
3 total stops
71h 25m total
London to Cambodia

Search Deals

10/9
2 total stops
23h 30m total
London to Cambodia

Search Deals

Highest demand for flights based on searches. 0% potential increase in price (£0 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).

Search Deals

Average for round-trip flights in June 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 30 June 2025.

Fri 7/1121:30LHR - PNH

2 stops34h 05mChina Southern

Sat 22/1111:55PNH - LHR

1 stop37h 20mChina Southern

Deal found 29/6£520

Fri 31/1021:10LHR - PNH

1 stop31h 05mShenzhen Airlines

Sun 16/1112:15PNH - LHR

1 stop37h 55mShenzhen Airlines

Deal found 29/6£524

Wed 5/1117:40LHR - PNH

1 stop22h 30mAir China

Tue 25/1100:25PNH - LHR

1 stop22h 30mAir China

Deal found 30/6£530

Mon 1/1221:10LHR - KOS

2 stops33h 50mMultiple Airlines

Fri 12/1214:30KOS - LHR

2 stops35h 40mMultiple Airlines

Deal found 28/6£547

Wed 5/1121:10LHR - PNH

1 stop30h 30mMultiple Airlines

Sat 28/300:10PNH - LHR

1 stop24h 30mMultiple Airlines

Deal found 30/6£547

Thu 9/1014:45LHR - PNH

1 stop34h 10mEtihad Airways

Thu 23/1008:30PNH - LHR

1 stop16h 15mEtihad Airways

Deal found 28/6£566

Tue 9/921:20LHR - PNH

2 stops32h 15mChina Eastern

Thu 9/1018:50PNH - LHR

2 stops29h 50mChina Eastern

Deal found 28/6£573

Wed 13/818:55LHR - KOS

2 stops32h 20mVietnam Airlines

Wed 20/810:15KOS - LHR

1 stop36h 40mVietnam Airlines

Deal found 29/6£971

Best flights from Heathrow to Cambodia
Discover carefully curated flight deals from Heathrow to Cambodia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 June 2025.

Fri 7/1121:30LHR - PNH

2 stops34h 05mChina Southern

Sat 22/1111:55PNH - LHR

1 stop37h 20mChina Southern

Deal found 29/6£520

Fri 31/1021:10LHR - PNH

1 stop31h 05mShenzhen Airlines

Sun 16/1112:15PNH - LHR

1 stop37h 55mShenzhen Airlines

Deal found 29/6£524

Wed 5/1117:40LHR - PNH

1 stop22h 30mAir China

Tue 25/1100:25PNH - LHR

1 stop22h 30mAir China

Deal found 30/6£530

Mon 1/1221:10LHR - KOS

2 stops33h 50mMultiple Airlines

Fri 12/1214:30KOS - LHR

2 stops35h 40mMultiple Airlines

Deal found 28/6£547

Thu 9/1014:45LHR - PNH

1 stop34h 10mEtihad Airways

Thu 23/1008:30PNH - LHR

1 stop16h 15mEtihad Airways

Deal found 28/6£566

Tue 9/921:20LHR - PNH

2 stops32h 15mChina Eastern

Thu 9/1018:50PNH - LHR

2 stops29h 50mChina Eastern

Deal found 28/6£573

Wed 13/818:55LHR - KOS

2 stops32h 20mVietnam Airlines

Wed 20/810:15KOS - LHR

1 stop36h 40mVietnam Airlines

Deal found 29/6£971

Wed 5/1121:10LHR - PNH

1 stop30h 30mMultiple Airlines

Sat 28/300:10PNH - LHR

1 stop24h 30mMultiple Airlines

Deal found 30/6£547

Last-minute flights from Heathrow to Cambodia
Discover last-minute flight deals from Heathrow to Cambodia. Data last updated 30 June 2025 and is based on user searches.

Mon 30/621:20LHR - PNH

1 stop19h 55mMultiple Airlines

Sun 6/700:20PNH - LHR

1 stop26h 10mMultiple Airlines

Deal found 29/6£643

Mon 30/618:55LHR - PNH

2 stops39h 20mQatar Airways

Mon 7/717:40PNH - LHR

2 stops26h 30mQatar Airways

Deal found 29/6£878

Thu 3/716:50LHR - PNH

2 stops41h 45mEmirates

Wed 9/720:50PNH - LHR

2 stops25h 20mEmirates

Deal found 28/6£770

Fri 4/722:10LHR - PNH

1 stop30h 30mChina Southern

Wed 9/708:00PNH - LHR

1 stop17h 00mChina Southern

Deal found 28/6£673

Fri 4/721:20LHR - PNH

1 stop19h 55mChina Eastern

Tue 8/700:10PNH - LHR

1 stop24h 30mChina Eastern

Deal found 28/6£887

Sat 5/718:20LHR - PNH

1 stop17h 00mCathay Pacific

Sat 16/818:30PNH - LHR

1 stop17h 45mCathay Pacific

Deal found 29/6£2,212

Sat 5/720:55LHR - PNH

2 stops29h 40mEtihad Airways

Sun 20/719:25PNH - LHR

2 stops29h 20mEtihad Airways

Deal found 28/6£2,803

Sat 5/712:30LHR - PNH

1 stop14h 20mThai Airways

Tue 12/809:40PNH - LHR

1 stop15h 35mThai Airways

Deal found 29/6£4,221

Sun 6/722:05LHR - PNH

1 stop31h 05mShenzhen Airlines

Fri 15/812:15PNH - LHR

1 stop37h 35mShenzhen Airlines

Deal found 29/6£1,339

Sun 6/719:30LHR - PNH

2 stops17h 35mAustrian Airlines

Tue 12/819:25PNH - LHR

2 stops29h 15mAustrian Airlines

Deal found 29/6£1,701

Sun 6/708:05LHR - PNH

2 stops26h 10mQatar Airways

Wed 13/817:40PNH - LHR

2 stops19h 10mQatar Airways

Deal found 29/6£3,486

Thu 10/722:40LHR - PNH

2 stops30h 30mMultiple Airlines

Thu 17/721:15PNH - LHR

2 stops27h 55mMultiple Airlines

Deal found 30/6£746

One-way flights from Heathrow to Cambodia
Search for one-way flight options from Heathrow to Cambodia. Find affordable one-way fares based on user searches. Data last updated 30 June 2025.

Wed 10/922:00LHR - PNH

2 stops23h 30mMultiple Airlines

Deal found 29/6£312

Wed 12/1121:10LHR - PNH

1 stop31h 05mShenzhen Airlines

Deal found 28/6£319

Tue 2/922:10LHR - PNH

1 stop34h 20mChina Southern

Deal found 29/6£378

Sat 5/721:20LHR - PNH

1 stop19h 55mChina Eastern

Deal found 29/6£382

Mon 8/920:25LHR - PNH

2 stops32h 45mAir China

Deal found 29/6£391

Thu 2/1021:45LHR - PNH

1 stop27h 10mEtihad Airways

Deal found 29/6£394

Sat 29/1121:10LHR - KOS

2 stops31h 10mMultiple Airlines

Deal found 28/6£401

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Fri 7/11

21:30-14:35

2 stops34h 05m

Phnom Penh Pochentong

Sat 22/11

11:55-18:15

1 stop37h 20m

£520

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Fri 31/10

21:10-11:15

1 stop31h 05m

Phnom Penh Pochentong

Sun 16/11

12:15-19:10

1 stop37h 55m

£524

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Wed 5/11

17:40-23:10

1 stop22h 30m

Phnom Penh Pochentong

Tue 25/11

00:25-15:55

1 stop22h 30m

£530

LondonKrong Preah Sihanouk

LHR - KOS

LHRKOS

London Heathrow

Mon 1/12

21:10-14:00

2 stops33h 50m

Krong Preah Sihanouk Sihanoukville

Fri 12/12

14:30-19:10

2 stops35h 40m

£547

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Wed 5/11

21:10-10:40

1 stop30h 30m

Phnom Penh Pochentong

Sat 28/3

00:10-17:40

1 stop24h 30m

£547

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Thu 9/10

14:45-06:55

1 stop34h 10m

Phnom Penh Pochentong

Thu 23/10

08:30-18:45

1 stop16h 15m

£566

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Tue 9/9

21:20-11:35

2 stops32h 15m

Phnom Penh Pochentong

Thu 9/10

18:50-18:40

2 stops29h 50m

£573

LondonKrong Preah Sihanouk

LHR - KOS

LHRKOS

London Heathrow

Wed 13/8

18:55-09:15

2 stops32h 20m

Krong Preah Sihanouk Sihanoukville

Wed 20/8

10:15-16:55

1 stop36h 40m

£971

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Wed 10/9

22:00-03:30

2 stops23h 30m

£312

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Wed 12/11

21:10-11:15

1 stop31h 05m

£319

Flights are sorted by cheapest return flights first.

Deals found on 29/6

Showing 1-10 of 15 results

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 £1,224). 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?

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.

Reviews of airlines servicing Cambodia

Read through reviews of airlines operating flights from London Heathrow Airport to Cambodia, such as China Southern, Vietnam Airlines, andEtihad Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

China Southern

7.6

Good

100 reviews

Check prices

Reviews

1 / 3

10.0

Excellent

Puey cheng,Apr 2025

SIN - CAN

Seats are clean and comfortable. Most important, the leg room is wider than many other airlines

China Southern

7.6

Good

100 reviews

China Southern

7.6

Good

100 reviews

Check prices

Reviews

1 / 3

10.0

Excellent

Puey cheng,Apr 2025

SIN - CAN

Seats are clean and comfortable. Most important, the leg room is wider than many other airlines

Vietnam Airlines

7.5

Good

194 reviews

China Southern

7.6

Good

100 reviews

Check prices

Reviews

1 / 3

10.0

Excellent

Puey cheng,Apr 2025

SIN - CAN

Seats are clean and comfortable. Most important, the leg room is wider than many other airlines

Etihad Airways

7.4

Good

1,222 reviews

China Southern

7.6

Good

100 reviews

Check prices

Reviews

1 / 3

10.0

Excellent

Puey cheng,Apr 2025

SIN - CAN

Seats are clean and comfortable. Most important, the leg room is wider than many other airlines

Air China

7.2

Good

92 reviews

China Southern

7.6

Good

100 reviews

Check prices

Reviews

1 / 3

10.0

Excellent

Puey cheng,Apr 2025

SIN - CAN

Seats are clean and comfortable. Most important, the leg room is wider than many other airlines

China Eastern

7.1

Good

152 reviews

China Southern

7.6

Good

100 reviews

Check prices

Reviews

1 / 3

10.0

Excellent

Puey cheng,Apr 2025

SIN - CAN

Seats are clean and comfortable. Most important, the leg room is wider than many other airlines

Related info for your journey

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 £319 on Shenzhen Airlines. Other airlines that offer cheap prices include China Southern from £378 and China Eastern from £382 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 £1,224). 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

Alternative routes for Heathrow to Cambodia

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Direct flights to Changsha

Top 10 airlines flying from Heathrow to Cambodia

Airline	Cheapest	Average	Flexibility	On-time
Shenzhen Airlines	Cheapest£374	Average£448	FlexibilityNo cancel fee	On-time63%	Search Shenzhen Airlines flights
Air China	Cheapest£418	Average£487	FlexibilityNo cancel fee	On-time67%	Search Air China flights
China Southern	Cheapest£425	Average£536	FlexibilityNo cancel fee	On-time69%	Search China Southern flights
Etihad Airways	Cheapest£486	Average£583	FlexibilityNo cancel fee	On-time75%	Search Etihad Airways flights
China Eastern	Cheapest£552	Average£619	FlexibilityNo cancel fee	On-time62%	Search China Eastern flights
Singapore Airlines	Cheapest£581	Average£702	FlexibilityNo cancel fee	On-time81%	Search Singapore Airlines flights
Malaysia Airlines	Cheapest£584	Average£698	FlexibilityNo cancel fee	On-time67%	Search Malaysia Airlines flights
Vietnam Airlines	Cheapest£618	Average£726	FlexibilityNo cancel fee	On-time81%	Search Vietnam Airlines flights
British Airways	Cheapest£634	Average£804	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Cathay Pacific	Cheapest£659	Average£773	FlexibilityNo cancel fee	On-time72%	Search Cathay Pacific flights

Fly with Cheapflights

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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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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.

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 30 June 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Heathrow to Cambodia

Cheapest flights from Heathrow to CambodiaExplore 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 30 June 2025.

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 30 June 2025.

Cheapflights Fare Finder

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

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.

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?

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 30 June 2025.

Reviews of airlines servicing Cambodia

Read through reviews of airlines operating flights from London Heathrow Airport to Cambodia, such as China Southern, Vietnam Airlines, andEtihad Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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

How can I find direct flights from Heathrow to Cambodia?

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

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

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.

Top 10 airlines flying from Heathrow to Cambodia

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?

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

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

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

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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 30 June 2025.