How long is the flight from London Heathrow Airport to Cambodia?

Shenzhen Airlines can get you from London Heathrow Airport to Cambodia in just under 29h 10m. Your travel time can differ by up to . The distance from London Heathrow Airport to Cambodia is about 6246 mi.

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 £242 on Etihad Airways. Other airlines that offer cheap prices include Shenzhen Airlines from £272 and China Southern from £290 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 airlines that fly from London Heathrow Airport to Cambodia?

Consider Etihad Airways, China Southern or Singapore Airlines when booking your flight. These represent the most popular airlines when flying from London Heathrow Airport to Cambodia.

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.

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.

£273+ Cheap Flights from London Heathrow Airport to Cambodia

Cheap flight deals from Heathrow to Cambodia

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 26 October 2026.

Wed 28/1012:30 -

1 stop21h 35m

Tue 10/1118:10 -

1 stop19h 15m

Deal found 21/10£457

Fri 20/1121:10 -

1 stop30h 30m

Fri 15/111:40 -

1 stop38h 30m

Deal found 22/10£467

Thu 29/1022:30 -

1 stop29h 10m

Tue 10/1118:10 -

1 stop19h 15m

Deal found 23/10£470

Mon 30/1122:00 -

1 stop34h 05m

Tue 29/1208:00 -

1 stop17h 35m

Deal found 22/10£472

Tue 1/1222:00 -

1 stop34h 05m

Sat 26/1216:10 -

1 stop33h 25m

Deal found 22/10£478

Fri 13/1112:30 -

1 stop21h 35m

Tue 17/1118:10 -

1 stop19h 15m

Deal found 25/10£478

Wed 18/1112:30 -

1 stop21h 35m

Tue 12/118:10 -

1 stop27h 00m

Deal found 22/10£479

Wed 4/1112:30 -

1 stop21h 35m

Tue 17/1118:10 -

1 stop19h 15m

Deal found 25/10£480

Fri 13/1112:30 -

1 stop21h 35m

Sat 28/1118:10 -

1 stop19h 15m

Deal found 25/10£480

Fri 13/1121:10 -

1 stop30h 30m

Fri 20/1107:55 -

1 stop29h 45m

Deal found 25/10£493

Mon 23/1121:10 -

1 stop30h 30m

Tue 15/1212:50 -

1 stop32h 20m

Deal found 23/10£498

Sun 15/1122:00 -

1 stop29h 50m

Sun 6/1208:00 -

1 stop17h 35m

Deal found 21/10£498

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 26 October 2026.

Thu 3/1222:30 -

1 stop29h 10m

Tue 12/111:40 -

1 stop38h 30m

Deal found 24/10£533

Sun 15/1119:00 -

2 stops38h 35m

Sat 28/1121:40 -

2 stops29h 20m

Deal found 25/10£847

Mon 8/215:30 -

2 stops16h 55m

Wed 24/217:10 -

2 stops21h 10m

Deal found 25/10£936

Sat 21/1120:55 -

3 stops33h 05m

Sat 28/1112:15 -

2 stops34h 40m

Deal found 24/10£956

Fri 5/211:00 -

2 stops19h 00m

Thu 18/216:30 -

2 stops45h 45m

Deal found 25/10£980

Fri 4/1208:05 -

2 stops24h 20m

Fri 1/117:10 -

2 stops21h 10m

Deal found 22/10£1,072

Fri 1/121:10 -

1 stop30h 30m

Fri 15/111:40 -

1 stop38h 30m

Deal found 21/10£601

Fri 5/221:10 -

1 stop30h 30m

Wed 10/211:40 -

1 stop39h 50m

Deal found 21/10£602

Thu 11/222:30 -

1 stop29h 10m

Wed 17/211:40 -

1 stop39h 50m

Deal found 22/10£646

Thu 11/213:40 -

2 stops19h 55m

Thu 18/221:40 -

2 stops21h 00m

Deal found 22/10£893

Sun 6/1215:30 -

2 stops16h 55m

Wed 30/1217:10 -

2 stops20h 15m

Deal found 22/10£986

Tue 8/1206:25 -

2 stops23h 35m

Tue 15/1212:15 -

2 stops33h 40m

Deal found 24/10£986

Thu 10/1216:30 -

2 stops36h 15m

Sun 20/1213:30 -

2 stops32h 25m

Deal found 23/10£1,013

Fri 27/1106:00 -

3 stops22h 45m

Mon 18/113:30 -

3 stops28h 00m

Deal found 23/10£1,013

Sat 5/1221:10 -

1 stop30h 30m

Sun 3/111:40 -

1 stop38h 30m

Deal found 22/10£1,008

Mon 15/218:45 -

2 stops32h 55m

Sun 28/213:50 -

2 stops31h 10m

Deal found 25/10£1,061

Sun 6/1210:25 -

1 stop19h 35m

Sun 13/1213:30 -

1 stop23h 05m

Deal found 22/10£1,075

Thu 19/1109:10 -

2 stops41h 25m

Tue 8/1210:15 -

3 stops34h 35m

Deal found 25/10£1,128

Find flight deals from Heathrow to Cambodia

Round-trip from	£467
One-way from	£273
Popular in	July
Cheapest in	November
Average price	£779

Shenzhen Airlines
20/11-15/1
2 total stops
69h 00m total
London to Cambodia

Search Deals

Shenzhen Airlines
19/11-31/12
1 total stop
29h 10m total
London to Cambodia

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (£65 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£14 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

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

Cheapest return flight

LondonPhnom Penh

LHR London Heathrow - KTI Phnom Penh Techo Intl

LHRKTI

London Heathrow

Thu 14/1

22:30-10:40

1 stop29h 10m

Phnom Penh Techo Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£390

LondonPhnom Penh

LHR London Heathrow - KTI Phnom Penh Techo Intl

LHRKTI

London Heathrow

Sat 9/1

21:10-10:40

1 stop30h 30m

Phnom Penh Techo Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£400

LondonPhnom Penh

LHR London Heathrow - KTI Phnom Penh Techo Intl

LHRKTI

London Heathrow

Sun 10/1

21:10-10:40

1 stop30h 30m

Phnom Penh Techo Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£400

LondonPhnom Penh

LHR London Heathrow - KTI Phnom Penh Techo Intl

LHRKTI

London Heathrow

Wed 4/11

17:15-10:50

3 stops34h 35m

Phnom Penh Techo Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£430

LondonKrong Preah Sihanouk

LHR London Heathrow - KOS Krong Preah Sihanouk Sihanoukville

LHRKOS

London Heathrow

Mon 29/3

18:10-13:00

3 stops36h 50m

Krong Preah Sihanouk Sihanoukville

Wed 31/12

00:00-18:00

Nonstop0h 00m

£448

Fastest return journey

LondonPhnom Penh

LHR London Heathrow - KTI Phnom Penh Techo Intl

LHRKTI

London Heathrow

Mon 23/11

19:25-18:55

2 stops16h 30m

Phnom Penh Techo Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£451

LondonPhnom Penh

LHR London Heathrow - KTI Phnom Penh Techo Intl

LHRKTI

London Heathrow

Thu 3/12

22:30-10:40

1 stop29h 10m

Phnom Penh Techo Intl

Tue 12/1

11:40-19:10

1 stop38h 30m

£533

LondonPhnom Penh

LHR London Heathrow - KTI Phnom Penh Techo Intl

LHRKTI

London Heathrow

Sat 21/11

08:05-15:25

2 stops24h 20m

Phnom Penh Techo Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£557

LondonPhnom Penh

LHR London Heathrow - KTI Phnom Penh Techo Intl

LHRKTI

London Heathrow

Thu 31/12

07:05-17:45

2 stops27h 40m

Phnom Penh Techo Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£579

LondonPhnom Penh

LHR London Heathrow - KTI Phnom Penh Techo Intl

LHRKTI

London Heathrow

Thu 24/12

07:05-17:45

2 stops27h 40m

Phnom Penh Techo Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£579

Flights are sorted by cheapest return flights first.

Deals found on 24/10

Showing 1-10 of 31 resultsSorted by cheapest first

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.

LHR-KTI

LHR-KOS

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

LHR-KH0

LHR-KTI

LHR-KOS

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

Currently, June is the cheapest month in which you can book a flight from London Heathrow Airport to Cambodia (average of £618). Flying from London Heathrow Airport to Cambodia in July is currently the most expensive (average of £974). 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.

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

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Cambodia, you should look to book at least 46 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.

Reviews of airlines servicing Cambodia

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

Singapore Airlines

8.2

Very Good

1,627 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Rob,Sept 2026

JFK - SIN

The gate agent was rude. Very disappointing. The cabin crew was amazing. Every thing with them was great once we boarded the plane.

Singapore Airlines

8.2

Very Good

1,627 reviews

Singapore Airlines

8.2

Very Good

1,627 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Rob,Sept 2026

JFK - SIN

The gate agent was rude. Very disappointing. The cabin crew was amazing. Every thing with them was great once we boarded the plane.

Cathay Pacific

7.6

Good

1,525 reviews

Singapore Airlines

8.2

Very Good

1,627 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Rob,Sept 2026

JFK - SIN

The gate agent was rude. Very disappointing. The cabin crew was amazing. Every thing with them was great once we boarded the plane.

China Southern

7.5

Good

184 reviews

Singapore Airlines

8.2

Very Good

1,627 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Rob,Sept 2026

JFK - SIN

The gate agent was rude. Very disappointing. The cabin crew was amazing. Every thing with them was great once we boarded the plane.

Etihad Airways

7.3

Good

1,545 reviews

Singapore Airlines

8.2

Very Good

1,627 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Rob,Sept 2026

JFK - SIN

The gate agent was rude. Very disappointing. The cabin crew was amazing. Every thing with them was great once we boarded the plane.

Malaysia Airlines

7.3

Good

320 reviews

Singapore Airlines

8.2

Very Good

1,627 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Rob,Sept 2026

JFK - SIN

The gate agent was rude. Very disappointing. The cabin crew was amazing. Every thing with them was great once we boarded the plane.

Related info for your journey

How long is the flight from London Heathrow Airport to Cambodia?
Shenzhen Airlines can get you from London Heathrow Airport to Cambodia in just under 29h 10m. Your travel time can differ by up to . The distance from London Heathrow Airport to Cambodia is about 6246 mi.
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 £242 on Etihad Airways. Other airlines that offer cheap prices include Shenzhen Airlines from £272 and China Southern from £290 one-way.
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, June is the cheapest month in which you can book a flight from London Heathrow Airport to Cambodia (average of £618). Flying from London Heathrow Airport to Cambodia in July is currently the most expensive (average of £974). 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

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Top 10 airlines flying from Heathrow to Cambodia

Airline	Cheapest	Average	Flexibility	On-time
Air China	Cheapest£381	Average£519	FlexibilityNo cancel fee	On-time67%	Search Air China flights
Shenzhen Airlines	Cheapest£411	Average£608	FlexibilityNo cancel fee	On-time63%	Search Shenzhen Airlines flights
China Southern	Cheapest£434	Average£573	FlexibilityNo cancel fee	On-time69%	Search China Southern flights
Etihad Airways	Cheapest£524	Average£705	FlexibilityNo cancel fee	On-time75%	Search Etihad Airways flights
China Eastern	Cheapest£579	Average£667	FlexibilityNo cancel fee	On-time62%	Search China Eastern flights
Malaysia Airlines	Cheapest£590	Average£763	FlexibilityNo cancel fee	On-time67%	Search Malaysia Airlines flights
Singapore Airlines	Cheapest£667	Average£835	FlexibilityNo cancel fee	On-time81%	Search Singapore Airlines flights
Cathay Pacific	Cheapest£709	Average£874	FlexibilityNo cancel fee	On-time72%	Search Cathay Pacific flights
Vietnam Airlines	Cheapest£746	Average£819	FlexibilityNo cancel fee	On-time81%	Search Vietnam Airlines flights
British Airways	Cheapest£763	Average£872	FlexibilityNo cancel fee	On-time70%	Search British Airways 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 £273

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 19/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap 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 26 October 2026.

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 26 October 2026.

Best flights from Heathrow to CambodiaDiscover 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 26 October 2026.

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 26 October 2026.

Last-minute flights from Heathrow to CambodiaDiscover last-minute flight deals from Heathrow to Cambodia. Data last updated 26 October 2026 and is based on user searches.

Discover last-minute flight deals from Heathrow to Cambodia. Data last updated 26 October 2026 and is based on user searches.

One-way flights from Heathrow to CambodiaSearch for one-way flight options from Heathrow to Cambodia. Find affordable one-way fares based on user searches. Data last updated 26 October 2026.

Search for one-way flight options from Heathrow to Cambodia. Find affordable one-way fares based on user searches. Data last updated 26 October 2026.

Find flight deals from Heathrow to Cambodia

Round-trip from

One-way from

Popular in

Cheapest in

Average price

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

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

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

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Cambodia, you should look to book at least 46 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.

Reviews of airlines servicing Cambodia

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

Related info for your journey

How long is the flight from London Heathrow Airport to Cambodia?

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

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.

Complete your trip

Complete your trip to Cambodia by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to

Book a non-stop flight to one of these other cities located in .

Search flights from Heathrow to Cambodia by cabin class

Find flights from Heathrow to Cambodia, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Heathrow and Cambodia flights

Browse other Heathrow and Cambodia flight options. Last updated on 26 October 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Heathrow to Cambodia flights

Consider these flights travelling from Heathrow to Cambodia.

Fly to Cambodia regions

Consider these flights travelling to Cambodia regions.

Top 10 airlines flying from Heathrow to Cambodia

Fly with Cheapflights

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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Book with Flexibility

Travel Smart

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 26 October 2026.

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 26 October 2026.

Last-minute flights from Heathrow to Cambodia
Discover last-minute flight deals from Heathrow to Cambodia. Data last updated 26 October 2026 and is based on user searches.

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 26 October 2026.