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

SWISS, Vietnam Airlines, and Singapore Airlines are the most popular carriers operating from London 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 according to our data. Etihad Airways is the first choice among our users, with 34% 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.

When did momondo last update prices for flights from London to Cambodia?

Prices for flights from London to Cambodia were last updated today.

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

The number of operators available for flights from London to Cambodia is 4 as of September 2026.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Cambodia.

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

The travel and health documents required for your trip to Cambodia can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Cambodia. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

£290 Cheap Flights from London to Cambodia in 2026

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Find the cheapest flights from London to Cambodia

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Enter your travel dates to find the best prices.

11:00 - 17:10LGW London Gatwick-SAI Siem Reap–Angkor Intl

24h 10m2 stops Guangzhou Baiyun Hanoi Noibai

18:05 - 06:30SAI Siem Reap–Angkor Intl-LGW London Gatwick

42h 25m2 stops Hanoi Noibai Guangzhou Baiyun

£541Multiple Airlines

Wed, 16 Sep - Wed, 14 Oct

11:35 - 17:10LGW London Gatwick-SAI Siem Reap–Angkor Intl

23h 35m2 stops Shanghai Pu Dong Hanoi Noibai

21:10 - 06:40SAI Siem Reap–Angkor Intl-LGW London Gatwick

39h 30m3 stops Kunming Changshui Zhaotong Shanghai Pu Dong

£588Multiple Airlines

Wed, 16 Sep - Wed, 14 Oct

06:00 - 18:45LHR London Heathrow-SAI Siem Reap–Angkor Intl

29h 45m2 stops Vienna Intl Bangkok Suvarnabhumi

09:55 - 14:05SAI Siem Reap–Angkor Intl-LHR London Heathrow

35h 10m2 stops Bangkok Suvarnabhumi Vienna Intl

£611Austrian Airlines

Thu, 3 Dec - Mon, 14 Dec

06:00 - 18:45LHR London Heathrow-SAI Siem Reap–Angkor Intl

29h 45m2 stops Vienna Intl Bangkok Suvarnabhumi

09:55 - 14:05SAI Siem Reap–Angkor Intl-LHR London Heathrow

35h 10m2 stops Bangkok Suvarnabhumi Vienna Intl

£612Austrian Airlines

Thu, 3 Dec - Mon, 14 Dec

18:55 - 17:10LHR London Heathrow-SAI Siem Reap–Angkor Intl

16h 15m1 stop Hanoi Noibai

20:30 - 07:15SAI Siem Reap–Angkor Intl-LHR London Heathrow

17h 45m1 stop Hanoi Noibai

£628Vietnam Airlines

Mon, 28 Sep - Thu, 28 Jan

19:50 - 18:20LHR London Heathrow-SAI Siem Reap–Angkor Intl

16h 30m1 stop Ho Chi Minh City

20:30 - 07:15SAI Siem Reap–Angkor Intl-LHR London Heathrow

17h 45m1 stop Hanoi Noibai

£628Vietnam Airlines

Tue, 29 Sep - Thu, 28 Jan

09:20 - 16:00LGW London Gatwick-SAI Siem Reap–Angkor Intl

23h 40m1 stop Singapore Changi

10:45 - 09:05SAI Siem Reap–Angkor Intl-LGW London Gatwick

29h 20m1 stop Singapore Changi

£758Singapore Airlines

Mon, 16 Nov - Mon, 30 Nov

21:45 - 16:00LHR London Heathrow-SAI Siem Reap–Angkor Intl

35h 15m1 stop Singapore Changi

10:45 - 05:55SAI Siem Reap–Angkor Intl-LHR London Heathrow

26h 10m1 stop Singapore Changi

£758Singapore Airlines

Wed, 27 Jan - Wed, 10 Feb

11:50 - 08:45LHR London Heathrow-SAI Siem Reap–Angkor Intl

13h 55m1 stop Bangkok Suvarnabhumi

09:50 - 19:35SAI Siem Reap–Angkor Intl-LHR London Heathrow

16h 45m1 stop Bangkok Suvarnabhumi

£982Thai Airways

Mon, 4 Jan - Fri, 15 Jan

11:50 - 08:45LHR London Heathrow-SAI Siem Reap–Angkor Intl

13h 55m1 stop Bangkok Suvarnabhumi

09:50 - 19:35SAI Siem Reap–Angkor Intl-LHR London Heathrow

16h 45m1 stop Bangkok Suvarnabhumi

£998Thai Airways

Sat, 21 Nov - Sun, 29 Nov

Cheap last-minute flights

Enter your travel dates to find the best prices.

11:35 - 20:10LGW London Gatwick-SAI Siem Reap–Angkor Intl

26h 35m3 stops Shanghai Pu Dong Fuzhou Kunming Changshui

21:10 - 06:40SAI Siem Reap–Angkor Intl-LGW London Gatwick

39h 30m2 stops Kunming Changshui Shanghai Pu Dong

£591China Eastern

Tue, 8 Sep - Wed, 7 Oct

21:05 - 21:30STN London Stansted-SAI Siem Reap–Angkor Intl

42h 25m2 stops Dubai Intl Bangkok Suvarnabhumi

23:50 - 18:45SAI Siem Reap–Angkor Intl-STN London Stansted

24h 55m2 stops Bangkok Suvarnabhumi Dubai Intl

£731Emirates

Tue, 8 Sep - Tue, 6 Oct

19:50 - 21:55LHR London Heathrow-SAI Siem Reap–Angkor Intl

20h 05m1 stop Ho Chi Minh City

22:35 - 16:55SAI Siem Reap–Angkor Intl-LHR London Heathrow

24h 20m1 stop Ho Chi Minh City

£735Vietnam Airlines

Tue, 8 Sep - Wed, 7 Oct

23:55 - 21:30LGW London Gatwick-SAI Siem Reap–Angkor Intl

39h 35m2 stops Dubai Intl Bangkok Suvarnabhumi

23:50 - 19:45SAI Siem Reap–Angkor Intl-LGW London Gatwick

25h 55m2 stops Bangkok Suvarnabhumi Dubai Intl

£737Emirates

Tue, 8 Sep - Tue, 6 Oct

19:50 - 21:55LHR London Heathrow-SAI Siem Reap–Angkor Intl

20h 05m1 stop Ho Chi Minh City

19:40 - 17:50SAI Siem Reap–Angkor Intl-LHR London Heathrow

28h 10m1 stop Ho Chi Minh City

£740Vietnam Airlines

Tue, 8 Sep - Mon, 5 Oct

19:30 - 18:45LHR London Heathrow-SAI Siem Reap–Angkor Intl

17h 15m2 stops Vienna Intl Bangkok Suvarnabhumi

19:35 - 08:20SAI Siem Reap–Angkor Intl-LHR London Heathrow

18h 45m2 stops Bangkok Suvarnabhumi Vienna Intl

£753Austrian Airlines

Tue, 8 Sep - Tue, 6 Oct

18:55 - 13:15LHR London Heathrow-SAI Siem Reap–Angkor Intl

36h 20m2 stops Hanoi Noibai Ho Chi Minh City

22:35 - 16:55SAI Siem Reap–Angkor Intl-LHR London Heathrow

24h 20m1 stop Ho Chi Minh City

£759Vietnam Airlines

Mon, 7 Sep - Wed, 7 Oct

10:05 - 09:40LGW London Gatwick-SAI Siem Reap–Angkor Intl

17h 35m1 stop Singapore Changi

10:30 - 09:30SAI Siem Reap–Angkor Intl-LGW London Gatwick

29h 00m1 stop Singapore Changi

£1,317Singapore Airlines

Mon, 7 Sep - Fri, 9 Oct

09:25 - 09:40LHR London Heathrow-SAI Siem Reap–Angkor Intl

18h 15m1 stop Singapore Changi

16:00 - 05:55SAI Siem Reap–Angkor Intl-LHR London Heathrow

19h 55m1 stop Singapore Changi

£1,346Singapore Airlines

Tue, 8 Sep - Fri, 9 Oct

10:10 - 09:40LGW London Gatwick-SAI Siem Reap–Angkor Intl

17h 30m1 stop Singapore Changi

10:30 - 09:30SAI Siem Reap–Angkor Intl-LGW London Gatwick

29h 00m1 stop Singapore Changi

£1,348Singapore Airlines

Sun, 6 Sep - Fri, 9 Oct

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Vietnam Airlines flights from London to Cambodia

Our best Vietnam Airlines deals on London to Cambodia flight tickets

Vietnam Airlines

28 Sept

LHR18:55London Heathrow

16h 15m

1 stop

SAI17:10Siem Reap–Angkor Intl

25 Jan

SAI21:30Siem Reap–Angkor Intl

16h 45m

1 stop

LHR07:15London Heathrow

£628

Vietnam Airlines

27 Sept

LHR19:50London Heathrow

15h 20m

1 stop

SAI17:10Siem Reap–Angkor Intl

25 Jan

SAI18:40Siem Reap–Angkor Intl

19h 35m

1 stop

LHR07:15London Heathrow

£640

Vietnam Airlines

28 Sept

LHR18:55London Heathrow

16h 15m

1 stop

SAI17:10Siem Reap–Angkor Intl

22 Jan

SAI21:30Siem Reap–Angkor Intl

16h 45m

1 stop

LHR07:15London Heathrow

£687

Austrian Airlines flights from London to Cambodia

Our best Austrian Airlines deals on London to Cambodia flight tickets

Austrian Airlines

3 Dec

LHR06:00London Heathrow

29h 45m

2 stops

SAI18:45Siem Reap–Angkor Intl

14 Dec

SAI19:25Siem Reap–Angkor Intl

19h 55m

2 stops

LHR08:20London Heathrow

£611

Austrian Airlines

3 Dec

LHR06:00London Heathrow

29h 45m

2 stops

SAI18:45Siem Reap–Angkor Intl

14 Dec

SAI09:55Siem Reap–Angkor Intl

35h 10m

2 stops

LHR14:05London Heathrow

£612

Austrian Airlines

3 Dec

LHR06:00London Heathrow

29h 45m

2 stops

SAI18:45Siem Reap–Angkor Intl

14 Dec

SAI09:55Siem Reap–Angkor Intl

35h 10m

2 stops

LHR14:05London Heathrow

£614

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSiem Reap

LGW London Gatwick - SAI Siem Reap–Angkor Intl

LGWSAI

London Gatwick

Wed 16/9

11:00-17:10

2 stops24h 10m

Siem Reap–Angkor Intl

Wed 14/10

18:05-06:30

2 stops42h 25m

£541

LondonSiem Reap

LGW London Gatwick - SAI Siem Reap–Angkor Intl

LGWSAI

London Gatwick

Wed 16/9

11:35-17:10

2 stops23h 35m

Siem Reap–Angkor Intl

Wed 14/10

21:10-06:40

3 stops39h 30m

£588

LondonSiem Reap

LHR London Heathrow - SAI Siem Reap–Angkor Intl

LHRSAI

London Heathrow

Thu 3/12

06:00-18:45

2 stops29h 45m

Siem Reap–Angkor Intl

Mon 14/12

09:55-14:05

2 stops35h 10m

£611

LondonSiem Reap

LHR London Heathrow - SAI Siem Reap–Angkor Intl

LHRSAI

London Heathrow

Thu 3/12

06:00-18:45

2 stops29h 45m

Siem Reap–Angkor Intl

Mon 14/12

09:55-14:05

2 stops35h 10m

£612

LondonSiem Reap

LHR London Heathrow - SAI Siem Reap–Angkor Intl

LHRSAI

London Heathrow

Mon 28/9

18:55-17:10

1 stop16h 15m

Siem Reap–Angkor Intl

Thu 28/1

20:30-07:15

1 stop17h 45m

£628

LondonSiem Reap

LHR London Heathrow - SAI Siem Reap–Angkor Intl

LHRSAI

London Heathrow

Tue 29/9

19:50-18:20

1 stop16h 30m

Siem Reap–Angkor Intl

Thu 28/1

20:30-07:15

1 stop17h 45m

£628

LondonSiem Reap

LGW London Gatwick - SAI Siem Reap–Angkor Intl

LGWSAI

London Gatwick

Mon 16/11

09:20-16:00

1 stop23h 40m

Siem Reap–Angkor Intl

Mon 30/11

10:45-09:05

1 stop29h 20m

£758

LondonSiem Reap

LHR London Heathrow - SAI Siem Reap–Angkor Intl

LHRSAI

London Heathrow

Wed 27/1

21:45-16:00

1 stop35h 15m

Siem Reap–Angkor Intl

Wed 10/2

10:45-05:55

1 stop26h 10m

£758

Fastest return journey

LondonSiem Reap

LHR London Heathrow - SAI Siem Reap–Angkor Intl

LHRSAI

London Heathrow

Mon 4/1

11:50-08:45

1 stop13h 55m

Siem Reap–Angkor Intl

Fri 15/1

09:50-19:35

1 stop16h 45m

£982

LondonSiem Reap

LHR London Heathrow - SAI Siem Reap–Angkor Intl

LHRSAI

London Heathrow

Sat 21/11

11:50-08:45

1 stop13h 55m

Siem Reap–Angkor Intl

Sun 29/11

09:50-19:35

1 stop16h 45m

£998

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 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 to Cambodia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £576. If you aren’t able to travel during the month of November, then book flights to Cambodia from London during June instead. Flights to Cambodia in June, while not as cheap as those in November, still average around £631.

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

You are more likely to see cheaper flights to Cambodia from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Cambodia for around £719 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 for as low as £565 on momondo.

Can stopping save me money on London to Cambodia flights?

You could potentially save up to 40% on your flight if you consider stops on a London to Cambodia flight.

Cheap London to Cambodia flight deals and tips

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

Best price found	£290
Fastest flight time	14h 25m
Direct flights	None

The best one-way flight to Cambodia from London in the past 72 hours is £290. The best return flight deal from London to Cambodia found on momondo in the last 72 hours is £541.

The fastest flight from London to Cambodia takes 14h 25m

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

Search flight deals

Frequently asked questions about flying from London to Cambodia

When did momondo last update prices for flights from London to Cambodia?
Prices for flights from London to Cambodia were last updated today.
How many operators does momondo search for flights from London to Cambodia?
The number of operators available for flights from London to Cambodia is 4 as of September 2026.
How old do you have to be to fly from London to Cambodia?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Cambodia.
What documentation or ID do you need to fly to Cambodia?
The travel and health documents required for your trip to Cambodia can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Cambodia. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from London to Cambodia

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

Airline	Rating	Free Cancellation	Price
China Southern	PriceFrom £235	Free Cancellation	Rating 7.3 172 reviews	Search China Southern flights
Air China	PriceFrom £266	Free Cancellation	Rating 7.4 163 reviews	Search Air China flights
Shenzhen Airlines	PriceFrom £454	Free Cancellation	Rating 7.9 26 reviews	Search Shenzhen Airlines flights
Etihad Airways	PriceFrom £510	Free Cancellation	Rating 7.3 1,531 reviews	Search Etihad Airways flights
Austrian Airlines	PriceFrom £537	Free Cancellation	Rating 7.6 950 reviews	Search Austrian Airlines flights
China Eastern	PriceFrom £575	Free Cancellation	Rating 7.3 236 reviews	Search China Eastern flights
Malaysia Airlines	PriceFrom £585	Free Cancellation	Rating 7.3 318 reviews	Search Malaysia Airlines flights
Singapore Airlines	PriceFrom £596	Free Cancellation	Rating 8.2 1,593 reviews	Search Singapore Airlines flights
Vietnam Airlines	PriceFrom £614	Free Cancellation	Rating 7.7 286 reviews	Search Vietnam Airlines flights
Cathay Pacific	PriceFrom £703	Free Cancellation	Rating 7.6 1,467 reviews	Search Cathay Pacific flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Cambodia from London.

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 for London to Cambodia flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from London to Cambodia now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Cambodia and let you know when they change.

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.

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Popular cities

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Airlines

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Complete your trip

Feeling lucky

Popular Cities in Cambodia

Flights to Phnom Penh

Flights to Siem Reapfrom £628

Cheap flights from London to Cambodia from £290

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Cambodia departing on 8/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from London to Cambodia

Cheap return flights

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Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

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Vietnam Airlines flights from London to Cambodia

Our best Vietnam Airlines deals on London to Cambodia flight tickets

Austrian Airlines flights from London to Cambodia

Our best Austrian Airlines deals on London to Cambodia flight tickets

momondo Fare Finder

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

See travel insights to Cambodia from

How to get the cheapest flight ticket from London to Cambodia

What is the cheapest month to fly to Cambodia?

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

Can stopping save me money on London to Cambodia flights?

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

Which airlines fly to Cambodia?

Cheap London to Cambodia flight deals and tips

Best price found

Fastest flight time

Direct flights

Frequently asked questions about flying from London to Cambodia

Best airlines flying from London to Cambodia

Compare and see reviews for airlines that fly from London 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 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

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

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