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

Austrian Airlines, SWISS, and Vietnam 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.

£319 Cheap Flights from London to Cambodia in 2026

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Find the cheapest flights from London to Cambodia

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Cheap return flights

Enter your travel dates to find the best prices.

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

29h 45m2 stops Vienna Intl Bangkok Suvarnabhumi

09:55 - 08:20SAI Siem Reap–Angkor Intl-LHR London Heathrow

29h 25m2 stops Bangkok Suvarnabhumi Vienna Intl

£600Austrian Airlines

Thu, 28 Jan - Sun, 31 Jan

09:05 - 18:45LHR London Heathrow-SAI Siem Reap–Angkor Intl

26h 40m2 stops Vienna Intl Bangkok Suvarnabhumi

09:55 - 21:40SAI Siem Reap–Angkor Intl-LHR London Heathrow

18h 45m2 stops Bangkok Suvarnabhumi Vienna Intl

£600Austrian Airlines

Wed, 3 Feb - Sun, 7 Feb

09:00 - 18:45LHR London Heathrow-SAI Siem Reap–Angkor Intl

26h 45m2 stops Zurich Bangkok Suvarnabhumi

09:55 - 21:40SAI Siem Reap–Angkor Intl-LHR London Heathrow

18h 45m2 stops Bangkok Suvarnabhumi Zurich

£627SWISS

Wed, 25 Nov - Sun, 13 Dec

20:15 - 18:45LHR London Heathrow-SAI Siem Reap–Angkor Intl

39h 30m2 stops Munich Franz Josef Strauss Bangkok Suvarnabhumi

16:50 - 08:05SAI Siem Reap–Angkor Intl-LHR London Heathrow

22h 15m2 stops Singapore Changi Zurich

£633Multiple Airlines

Mon, 8 Feb - Wed, 10 Mar

18:55 - 18:20LHR London Heathrow-SAI Siem Reap–Angkor Intl

17h 25m1 stop Ho Chi Minh City

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

24h 20m1 stop Ho Chi Minh City

£716Vietnam Airlines

Thu, 1 Oct - Wed, 14 Oct

18:55 - 18:20LHR London Heathrow-SAI Siem Reap–Angkor Intl

17h 25m1 stop Ho Chi Minh City

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

24h 20m1 stop Ho Chi Minh City

£717Vietnam Airlines

Thu, 1 Oct - Wed, 14 Oct

09:10 - 16:00LHR London Heathrow-SAI Siem Reap–Angkor Intl

23h 50m1 stop Singapore Changi

10:45 - 19:10SAI Siem Reap–Angkor Intl-LHR London Heathrow

39h 25m1 stop Singapore Changi

£755Singapore Airlines

Wed, 20 Jan - Sat, 6 Feb

10:40 - 16:00LHR London Heathrow-SAI Siem Reap–Angkor Intl

22h 20m1 stop Singapore Changi

16:50 - 15:20SAI Siem Reap–Angkor Intl-LHR London Heathrow

29h 30m1 stop Singapore Changi

£755Singapore Airlines

Fri, 19 Feb - Tue, 2 Mar

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

£1,035Thai Airways

Thu, 3 Dec - Mon, 14 Dec

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

£1,054Thai Airways

Sat, 14 Nov - Thu, 19 Nov

Cheap last-minute flights

Enter your travel dates to find the best prices.

22:00 - 20:10LGW London Gatwick-SAI Siem Reap–Angkor Intl

40h 10m2 stops Shanghai Pu Dong Kunming Changshui

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

39h 30m2 stops Kunming Changshui Shanghai Pu Dong

£608China Eastern

Wed, 9 Sep - Wed, 7 Oct

21:20 - 20:10LHR London Heathrow-SAI Siem Reap–Angkor Intl

40h 50m3 stops Shanghai Pu Dong Hengyang Kunming Changshui

21:10 - 18:40SAI Siem Reap–Angkor Intl-LHR London Heathrow

27h 30m2 stops Kunming Changshui Shanghai Pu Dong

£637China Eastern

Wed, 9 Sep - Wed, 7 Oct

22:00 - 20:10LGW London Gatwick-SAI Siem Reap–Angkor Intl

40h 10m3 stops Shanghai Pu Dong Ji'an Ji An/Jing Gang Shan Kunming Changshui

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

39h 30m2 stops Kunming Changshui Shanghai Pu Dong

£641China Eastern

Wed, 9 Sep - Wed, 7 Oct

22:00 - 20:10LGW London Gatwick-SAI Siem Reap–Angkor Intl

40h 10m3 stops Shanghai Pu Dong Hengyang Kunming Changshui

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

39h 30m2 stops Kunming Changshui Shanghai Pu Dong

£658China Eastern

Wed, 9 Sep - Wed, 7 Oct

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

16h 15m1 stop Hanoi Noibai

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

24h 20m1 stop Ho Chi Minh City

£717Vietnam Airlines

Wed, 9 Sep - Wed, 7 Oct

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

16h 15m1 stop Hanoi Noibai

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

24h 20m1 stop Ho Chi Minh City

£718Vietnam Airlines

Wed, 9 Sep - Wed, 7 Oct

18:55 - 08:45LHR London Heathrow-SAI Siem Reap–Angkor Intl

31h 50m2 stops Hanoi Noibai Ho Chi Minh City

09:35 - 16:55SAI Siem Reap–Angkor Intl-LHR London Heathrow

37h 20m1 stop Ho Chi Minh City

£733Vietnam Airlines

Mon, 14 Sep - Wed, 14 Oct

10:00 - 09:40LGW London Gatwick-SAI Siem Reap–Angkor Intl

17h 40m1 stop Singapore Changi

10:30 - 06:55SAI Siem Reap–Angkor Intl-LGW London Gatwick

26h 25m1 stop Singapore Changi

£1,023Singapore Airlines

Wed, 9 Sep - Wed, 7 Oct

10:00 - 09:40LGW London Gatwick-SAI Siem Reap–Angkor Intl

17h 40m1 stop Singapore Changi

10:30 - 06:55SAI Siem Reap–Angkor Intl-LGW London Gatwick

26h 25m1 stop Singapore Changi

£1,023Singapore Airlines

Wed, 9 Sep - Wed, 7 Oct

10:00 - 09:40LGW London Gatwick-SAI Siem Reap–Angkor Intl

17h 40m1 stop Singapore Changi

10:30 - 06:55SAI Siem Reap–Angkor Intl-LGW London Gatwick

26h 25m1 stop Singapore Changi

£1,025Singapore Airlines

Wed, 9 Sep - Wed, 7 Oct

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Austrian Airlines flights from London to Cambodia

Our best Austrian Airlines deals on London to Cambodia flight tickets

Austrian Airlines

28 Jan

LHR06:00London Heathrow

29h 45m

2 stops

SAI18:45Siem Reap–Angkor Intl

31 Jan

SAI09:55Siem Reap–Angkor Intl

29h 25m

2 stops

LHR08:20London Heathrow

£600

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

£608

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

£610

SWISS flights from London to Cambodia

Our best SWISS deals on London to Cambodia flight tickets

SWISS

25 Nov

LHR09:00London Heathrow

26h 45m

2 stops

SAI18:45Siem Reap–Angkor Intl

13 Dec

SAI09:55Siem Reap–Angkor Intl

18h 45m

2 stops

LHR21:40London Heathrow

£627

SWISS

1 Mar

LHR09:00London Heathrow

26h 45m

2 stops

SAI18:45Siem Reap–Angkor Intl

8 Mar

SAI16:50Siem Reap–Angkor Intl

27h 10m

2 stops

LHR13:00London Heathrow

£659

SWISS

25 Nov

LCY13:30London City

22h 15m

2 stops

SAI18:45Siem Reap–Angkor Intl

13 Dec

SAI09:55Siem Reap–Angkor Intl

29h 45m

2 stops

LCY08:40London City

£667

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSiem Reap

LHR London Heathrow - SAI Siem Reap–Angkor Intl

LHRSAI

London Heathrow

Thu 28/1

06:00-18:45

2 stops29h 45m

Siem Reap–Angkor Intl

Sun 31/1

09:55-08:20

2 stops29h 25m

£600

LondonSiem Reap

LHR London Heathrow - SAI Siem Reap–Angkor Intl

LHRSAI

London Heathrow

Wed 3/2

09:05-18:45

2 stops26h 40m

Siem Reap–Angkor Intl

Sun 7/2

09:55-21:40

2 stops18h 45m

£600

LondonSiem Reap

LHR London Heathrow - SAI Siem Reap–Angkor Intl

LHRSAI

London Heathrow

Wed 25/11

09:00-18:45

2 stops26h 45m

Siem Reap–Angkor Intl

Sun 13/12

09:55-21:40

2 stops18h 45m

£627

LondonSiem Reap

LHR London Heathrow - SAI Siem Reap–Angkor Intl

LHRSAI

London Heathrow

Mon 8/2

20:15-18:45

2 stops39h 30m

Siem Reap–Angkor Intl

Wed 10/3

16:50-08:05

2 stops22h 15m

£633

LondonSiem Reap

LHR London Heathrow - SAI Siem Reap–Angkor Intl

LHRSAI

London Heathrow

Thu 1/10

18:55-18:20

1 stop17h 25m

Siem Reap–Angkor Intl

Wed 14/10

22:35-16:55

1 stop24h 20m

£716

LondonSiem Reap

LHR London Heathrow - SAI Siem Reap–Angkor Intl

LHRSAI

London Heathrow

Thu 1/10

18:55-18:20

1 stop17h 25m

Siem Reap–Angkor Intl

Wed 14/10

22:35-16:55

1 stop24h 20m

£717

LondonSiem Reap

LHR London Heathrow - SAI Siem Reap–Angkor Intl

LHRSAI

London Heathrow

Wed 20/1

09:10-16:00

1 stop23h 50m

Siem Reap–Angkor Intl

Sat 6/2

10:45-19:10

1 stop39h 25m

£755

LondonSiem Reap

LHR London Heathrow - SAI Siem Reap–Angkor Intl

LHRSAI

London Heathrow

Fri 19/2

10:40-16:00

1 stop22h 20m

Siem Reap–Angkor Intl

Tue 2/3

16:50-15:20

1 stop29h 30m

£755

Fastest return journey

LondonSiem Reap

LHR London Heathrow - SAI Siem Reap–Angkor Intl

LHRSAI

London Heathrow

Thu 3/12

11:50-08:45

1 stop13h 55m

Siem Reap–Angkor Intl

Mon 14/12

09:50-19:35

1 stop16h 45m

£1,035

LondonSiem Reap

LHR London Heathrow - SAI Siem Reap–Angkor Intl

LHRSAI

London Heathrow

Sat 14/11

11:50-08:45

1 stop13h 55m

Siem Reap–Angkor Intl

Thu 19/11

09:50-19:35

1 stop16h 45m

£1,054

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 £580. 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 £630.

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 £724 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 £573 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	£319
Fastest flight time	17h 55m
Direct flights	None

The best one-way flight to Cambodia from London in the past 72 hours is £319. The best return flight deal from London to Cambodia found on momondo in the last 72 hours is £600.

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

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 £234	Free Cancellation	Rating 7.3 172 reviews	Search China Southern flights
Air China	PriceFrom £266	Free Cancellation	Rating 7.5 164 reviews	Search Air China flights
Shenzhen Airlines	PriceFrom £406	Free Cancellation	Rating 7.9 26 reviews	Search Shenzhen Airlines flights
Etihad Airways	PriceFrom £509	Free Cancellation	Rating 7.3 1,533 reviews	Search Etihad Airways flights
Austrian Airlines	PriceFrom £535	Free Cancellation	Rating 7.6 954 reviews	Search Austrian Airlines flights
China Eastern	PriceFrom £573	Free Cancellation	Rating 7.3 236 reviews	Search China Eastern flights
Malaysia Airlines	PriceFrom £583	Free Cancellation	Rating 7.3 318 reviews	Search Malaysia Airlines flights
Singapore Airlines	PriceFrom £594	Free Cancellation	Rating 8.2 1,598 reviews	Search Singapore Airlines flights
Vietnam Airlines	PriceFrom £612	Free Cancellation	Rating 7.7 286 reviews	Search Vietnam Airlines flights
Cathay Pacific	PriceFrom £701	Free Cancellation	Rating 7.6 1,477 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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Complete your trip

Feeling lucky

Popular Cities in Cambodia

Flights to Phnom Penh

Flights to Siem Reapfrom £538

Cheap flights from London to Cambodia from £319

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 3/11. 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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Cheap last-minute flights

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

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Austrian Airlines flights from London to Cambodia

Our best Austrian Airlines deals on London to Cambodia flight tickets

SWISS flights from London to Cambodia

Our best SWISS 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