What is the cheapest airline that flies from London Heathrow to Cambodia?

Etihad Airways and British Airways are the most popular carriers operating from London Heathrow to Cambodia

Which airlines fly to Cambodia?

Etihad Airways, China Southern and Singapore Airlines are the top three most popular airlines that fly to Cambodia from London Heathrow Airport according to our data. Etihad Airways is the first choice among our users, with 39% of people opting to fly with this airline when travelling to Cambodia. Keep in mind that there are 14 different airlines that fly to Cambodia on a routine basis, so you have a few additional options to choose from.

How many operators does momondo search for flights from London Heathrow Airport to Cambodia?

The number of operators available for flights from London Heathrow Airport to Cambodia is 11 as of June 2026.

How old do you have to be to fly from London Heathrow Airport to Cambodia?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Heathrow Airport to Cambodia.

What documentation or ID do you need to fly to Cambodia?

The required travel and health documents for your Cambodia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Cambodia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

£362 Cheap Flights from London Heathrow Airport to Cambodia in 2026

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Find the cheapest flights from London Heathrow Airport to Cambodia

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

09:30 - 17:50

LHR

SAI

26h 20m

2 stops

15:10 - 07:00

SAI

LHR

45h 50m

2 stops

£587Etihad Airways

Tue, 30 Jun - Tue, 14 Jul

12:10 - 18:55

LHR

SAI

24h 45m

2 stops

09:40 - 21:45

SAI

LHR

18h 05m

2 stops

£594SWISS

Wed, 2 Sep - Wed, 23 Sep

13:50 - 18:55

LHR

SAI

23h 05m

2 stops

09:40 - 21:45

SAI

LHR

18h 05m

2 stops

£609SWISS

Wed, 19 Aug - Wed, 16 Sep

09:00 - 18:55

LHR

SAI

27h 55m

2 stops

09:40 - 21:45

SAI

LHR

18h 05m

2 stops

£610Multiple Airlines

Wed, 2 Sep - Wed, 23 Sep

09:00 - 18:55

LHR

SAI

27h 55m

2 stops

09:40 - 21:45

SAI

LHR

18h 05m

2 stops

£611Multiple Airlines

Wed, 19 Aug - Wed, 16 Sep

14:45 - 11:15

LHR

SAI

38h 30m

2 stops

19:20 - 18:45

SAI

LHR

29h 25m

2 stops

£612Etihad Airways

Mon, 6 Jul - Sun, 12 Jul

06:00 - 18:55

LHR

SAI

30h 55m

2 stops

09:40 - 21:45

SAI

LHR

18h 05m

2 stops

£613Multiple Airlines

Fri, 25 Sep - Tue, 29 Sep

21:45 - 11:15

LHR

SAI

31h 30m

2 stops

19:20 - 12:45

SAI

LHR

47h 25m

2 stops

£613Etihad Airways

Mon, 6 Jul - Tue, 14 Jul

19:25 - 18:45

LHR

SAI

16h 20m

2 stops

09:55 - 21:40

SAI

LHR

18h 45m

2 stops

£621Multiple Airlines

Wed, 28 Oct - Thu, 19 Nov

19:25 - 18:45

LHR

SAI

16h 20m

2 stops

09:55 - 21:40

SAI

LHR

18h 45m

2 stops

£622Austrian Airlines

Wed, 28 Oct - Fri, 20 Nov

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SWISS flights from London Heathrow Airport to Cambodia

Our best SWISS deals on London Heathrow Airport to Cambodia flight tickets

SWISS

2 Sept

LHR12:10London Heathrow

24h 45m

2 stops

SAI18:55Siem Reap–Angkor Intl

23 Sept

SAI09:40Siem Reap–Angkor Intl

18h 05m

2 stops

LHR21:45London Heathrow

£594

SWISS

15 Sept

LHR08:45London Heathrow

28h 10m

2 stops

SAI18:55Siem Reap–Angkor Intl

24 Sept

SAI09:40Siem Reap–Angkor Intl

28h 15m

2 stops

LHR07:55London Heathrow

£595

SWISS

19 Aug

LHR13:50London Heathrow

23h 05m

2 stops

SAI18:55Siem Reap–Angkor Intl

16 Sept

SAI09:40Siem Reap–Angkor Intl

18h 05m

2 stops

LHR21:45London Heathrow

£609

Etihad Airways flights from London Heathrow Airport to Cambodia

Our best Etihad Airways deals on London Heathrow Airport to Cambodia flight tickets

Etihad Airways

30 Jun

LHR09:30London Heathrow

26h 20m

2 stops

SAI17:50Siem Reap–Angkor Intl

14 Jul

SAI15:10Siem Reap–Angkor Intl

45h 50m

2 stops

LHR07:00London Heathrow

£587

Etihad Airways

20 Jun

LHR21:45London Heathrow

34h 35m

2 stops

SAI14:20Siem Reap–Angkor Intl

28 Jun

SAI13:00Siem Reap–Angkor Intl

35h 45m

2 stops

LHR18:45London Heathrow

£602

Etihad Airways

6 Jul

LHR21:45London Heathrow

31h 30m

2 stops

SAI11:15Siem Reap–Angkor Intl

12 Jul

SAI19:20Siem Reap–Angkor Intl

29h 25m

2 stops

LHR18:45London Heathrow

£613

momondo 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

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Tue 30/6

09:30-17:50

2 stops26h 20m

Siem Reap–Angkor Intl

Tue 14/7

15:10-07:00

2 stops45h 50m

£587

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Wed 2/9

12:10-18:55

2 stops24h 45m

Siem Reap–Angkor Intl

Wed 23/9

09:40-21:45

2 stops18h 05m

£594

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Wed 19/8

13:50-18:55

2 stops23h 05m

Siem Reap–Angkor Intl

Wed 16/9

09:40-21:45

2 stops18h 05m

£609

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Wed 2/9

09:00-18:55

2 stops27h 55m

Siem Reap–Angkor Intl

Wed 23/9

09:40-21:45

2 stops18h 05m

£610

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Wed 19/8

09:00-18:55

2 stops27h 55m

Siem Reap–Angkor Intl

Wed 16/9

09:40-21:45

2 stops18h 05m

£611

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Mon 6/7

14:45-11:15

2 stops38h 30m

Siem Reap–Angkor Intl

Sun 12/7

19:20-18:45

2 stops29h 25m

£612

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Fri 25/9

06:00-18:55

2 stops30h 55m

Siem Reap–Angkor Intl

Tue 29/9

09:40-21:45

2 stops18h 05m

£613

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Mon 6/7

21:45-11:15

2 stops31h 30m

Siem Reap–Angkor Intl

Tue 14/7

19:20-12:45

2 stops47h 25m

£613

Fastest return journey

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Wed 28/10

19:25-18:45

2 stops16h 20m

Siem Reap–Angkor Intl

Thu 19/11

09:55-21:40

2 stops18h 45m

£621

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Wed 28/10

19:25-18:45

2 stops16h 20m

Siem Reap–Angkor Intl

Fri 20/11

09:55-21:40

2 stops18h 45m

£622

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from London Heathrow Airport to Cambodia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Cambodia?

In general, November is the cheapest month to fly from London Heathrow Airport to Cambodia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £267. If you aren’t able to travel during the month of November, then book flights to Cambodia from London Heathrow Airport during June instead. Flights to Cambodia in June, while not as cheap as those in November, still average around £332.

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

You are more likely to see cheaper flights to Cambodia from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Cambodia for around £700 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Cambodia from London Heathrow Airport for as low as £571 on momondo.

Can stopping save me money on London Heathrow Airport to Cambodia flights?

You could potentially save up to 22% on your flight if you consider stops on a London Heathrow Airport to Cambodia flight.

Cheap London Heathrow Airport to Cambodia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Cambodia

Fastest flight time	17h 55m
Direct flights	None

The fastest flight from London Heathrow Airport to Cambodia takes 17h 55m

There are no direct flights from London Heathrow Airport to Cambodia. There are no popular flight routes from London Heathrow Airport to Cambodia.

Search flight deals

Frequently asked questions about flying from London Heathrow Airport to Cambodia

When did momondo last update prices for flights from London Heathrow Airport to Cambodia?
Prices for flights from London Heathrow Airport to Cambodia refresh daily.
How many operators does momondo search for flights from London Heathrow Airport to Cambodia?
The number of operators available for flights from London Heathrow Airport to Cambodia is 11 as of June 2026.
How old do you have to be to fly from London Heathrow Airport to Cambodia?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Heathrow Airport to Cambodia.
What documentation or ID do you need to fly to Cambodia?
The required travel and health documents for your Cambodia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Cambodia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from London Heathrow Airport to Cambodia

Compare and see reviews for airlines that fly from London Heathrow Airport to Cambodia with momondo

Airline	Rating	Free Cancellation	Price
Air China	PriceFrom £268	Free Cancellation	Rating 7.3 155 reviews	Search Air China flights
Shenzhen Airlines	PriceFrom £334	Free Cancellation	Rating 7.9 26 reviews	Search Shenzhen Airlines flights
China Southern	PriceFrom £396	Free Cancellation	Rating 7.5 153 reviews	Search China Southern flights
Etihad Airways	PriceFrom £510	Free Cancellation	Rating 7.3 1,452 reviews	Search Etihad Airways flights
Austrian Airlines	PriceFrom £540	Free Cancellation	Rating 7.6 935 reviews	Search Austrian Airlines flights
China Eastern	PriceFrom £578	Free Cancellation	Rating 7.3 223 reviews	Search China Eastern flights
Malaysia Airlines	PriceFrom £588	Free Cancellation	Rating 7.3 311 reviews	Search Malaysia Airlines flights
Singapore Airlines	PriceFrom £601	Free Cancellation	Rating 8.2 1,545 reviews	Search Singapore Airlines flights
Vietnam Airlines	PriceFrom £618	Free Cancellation	Rating 7.7 272 reviews	Search Vietnam Airlines flights
Cathay Pacific	PriceFrom £701	Free Cancellation	Rating 7.6 1,379 reviews	Search Cathay Pacific flights

Why use momondo?

Why should I use momondo to find a flight deal from London to Cambodia?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to Cambodia . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from London to Cambodia with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for London to Cambodia flights to just show those with flexible booking policies.

How can momondo help me find flights from London to Cambodia?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Cambodia from London.

I’m not ready to book a flight from London to Cambodia right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of London to Cambodia flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Flights to Phnom Penhfrom £655

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Cheap flights from London Heathrow Airport to Cambodia from £361

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SWISS flights from London Heathrow Airport to Cambodia

Our best SWISS deals on London Heathrow Airport to Cambodia flight tickets

Etihad Airways flights from London Heathrow Airport to Cambodia

Our best Etihad Airways deals on London Heathrow Airport to Cambodia flight tickets

momondo Fare Finder

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

See travel insights to Cambodia from

How to get the cheapest flight ticket from London Heathrow Airport to Cambodia

What is the cheapest month to fly to Cambodia?

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

Can stopping save me money on London Heathrow Airport to Cambodia flights?

What is the cheapest airline that flies from London Heathrow to Cambodia?

Which airlines fly to Cambodia?

Cheap London Heathrow Airport to Cambodia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Cambodia

Fastest flight time

Direct flights

Frequently asked questions about flying from London Heathrow Airport to Cambodia

Best airlines flying from London Heathrow Airport to Cambodia

Compare and see reviews for airlines that fly from London Heathrow Airport to Cambodia with momondo

Why use momondo?

An easier way to manage your Cambodia trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Cambodia

Popular Cities in Cambodia

Popular flights according to clicks in the last 7 days on momondo

London Heathrow Airport flight routes

According to popular flight searches on momondo this year

Cambodia flight routes

According to popular flight searches on momondo this year

Fly your favourite airline to Cambodia

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Cabin classes currently available on flights to Cambodia

List of cabin classes available on flights landing in Cambodia. Availability may vary depending on flight origin and airline.

Complete your trip to Cambodia

Explore popular destinations other users love

According to popular flight searches on momondo this year