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

China Eastern, Vietnam Airlines, and Emirates are the most popular carriers operating from Cambodia to London Heathrow

How long does it take to fly to London Heathrow Airport?

If you’re flying from a popular airport in Cambodia, such as Phnom Penh or Siem Reap, and flying into London Heathrow Airport, then you can expect flight times to average 24h 55m and 30h 05m, respectively.

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

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

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

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 Cambodia to London Heathrow Airport.

What documentation or ID do you need to fly to London Heathrow Airport?

The travel and health documents you'll need for your trip to London Heathrow Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London Heathrow Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

£323 Cheap Flights from Cambodia to London Heathrow Airport in 2026

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Find the cheapest flights from Cambodia to London

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Recent return flight deals from Cambodia to London

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09:40 - 06:55

SAI

LHR

27h 15m

2 stops

10:00 - 18:45

LHR

SAI

26h 45m

2 stops

£721Multiple Airlines

Mon, 11 May - Fri, 29 May

14:50 - 06:25

SAI

LHR

21h 35m

3 stops

15:35 - 09:00

LHR

SAI

35h 25m

3 stops

£766Multiple Airlines

Mon, 11 May - Fri, 29 May

19:05 - 18:10

SAI

LHR

30h 05m

2 stops

09:30 - 18:05

LHR

SAI

26h 35m

2 stops

£770Multiple Airlines

Fri, 27 Mar - Fri, 3 Apr

12:55 - 06:55

SAI

LHR

24h 00m

2 stops

07:00 - 21:30

LHR

SAI

32h 30m

3 stops

£814Multiple Airlines

Mon, 11 May - Fri, 29 May

10:30 - 15:45

SAI

LHR

35h 15m

1 stop

20:35 - 15:10

LHR

SAI

36h 35m

1 stop

£864Singapore Airlines

Mon, 11 May - Fri, 29 May

19:10 - 17:50

SAI

LHR

28h 40m

1 stop

20:45 - 09:00

LHR

SAI

30h 15m

2 stops

£867Multiple Airlines

Mon, 11 May - Fri, 29 May

19:05 - 18:10

SAI

LHR

30h 05m

2 stops

09:30 - 14:30

LHR

SAI

23h 00m

3 stops

£908Multiple Airlines

Fri, 27 Mar - Fri, 3 Apr

16:50 - 18:10

SAI

LHR

32h 20m

3 stops

22:05 - 11:10

LHR

SAI

31h 05m

3 stops

£930Multiple Airlines

Fri, 27 Mar - Fri, 3 Apr

18:50 - 07:15

SAI

LHR

19h 25m

1 stop

22:10 - 18:05

LHR

SAI

37h 55m

2 stops

£1,253Multiple Airlines

Fri, 27 Mar - Fri, 3 Apr

18:50 - 07:15

SAI

LHR

19h 25m

1 stop

11:00 - 14:50

LHR

SAI

21h 50m

1 stop

£1,757Multiple Airlines

Fri, 27 Mar - Fri, 3 Apr

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Siem ReapLondon

SAI - LHR

SAILHR

Siem Reap–Angkor Intl

Mon 11/5

09:40-06:55

2 stops27h 15m

London Heathrow

Fri 29/5

10:00-18:45

2 stops26h 45m

£721

Siem ReapLondon

SAI - LHR

SAILHR

Siem Reap–Angkor Intl

Mon 11/5

14:50-06:25

3 stops21h 35m

London Heathrow

Fri 29/5

15:35-09:00

3 stops35h 25m

£766

Siem ReapLondon

SAI - LHR

SAILHR

Siem Reap–Angkor Intl

Fri 27/3

19:05-18:10

2 stops30h 05m

London Heathrow

Fri 3/4

09:30-18:05

2 stops26h 35m

£770

Siem ReapLondon

SAI - LHR

SAILHR

Siem Reap–Angkor Intl

Mon 11/5

12:55-06:55

2 stops24h 00m

London Heathrow

Fri 29/5

07:00-21:30

3 stops32h 30m

£814

Siem ReapLondon

SAI - LHR

SAILHR

Siem Reap–Angkor Intl

Mon 11/5

10:30-15:45

1 stop35h 15m

London Heathrow

Fri 29/5

20:35-15:10

1 stop36h 35m

£864

Siem ReapLondon

SAI - LHR

SAILHR

Siem Reap–Angkor Intl

Mon 11/5

19:10-17:50

1 stop28h 40m

London Heathrow

Fri 29/5

20:45-09:00

2 stops30h 15m

£867

Siem ReapLondon

SAI - LHR

SAILHR

Siem Reap–Angkor Intl

Fri 27/3

19:05-18:10

2 stops30h 05m

London Heathrow

Fri 3/4

09:30-14:30

3 stops23h 00m

£908

Siem ReapLondon

SAI - LHR

SAILHR

Siem Reap–Angkor Intl

Fri 27/3

16:50-18:10

3 stops32h 20m

London Heathrow

Fri 3/4

22:05-11:10

3 stops31h 05m

£930

Siem ReapLondon

SAI - LHR

SAILHR

Siem Reap–Angkor Intl

Fri 27/3

18:50-07:15

1 stop19h 25m

London Heathrow

Fri 3/4

22:10-18:05

2 stops37h 55m

£1,253

Fastest return journey

Siem ReapLondon

SAI - LHR

SAILHR

Siem Reap–Angkor Intl

Fri 27/3

18:50-07:15

1 stop19h 25m

London Heathrow

Fri 3/4

11:00-14:50

1 stop21h 50m

£1,757

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 Cambodia to London Heathrow Airport

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

Other information

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

In general, August is the cheapest month to fly from Cambodia to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £551. The month of November is another great option to travel to London Heathrow Airport, with average flight prices from Cambodia averaging around £605.

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

You could potentially save up to 21% on your flight if you consider stops on a Cambodia to London Heathrow Airport flight.

Cheap Cambodia to London Heathrow Airport flight deals and tips

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

Fastest flight time	24h 55m
Direct flights	None

The fastest flight from Cambodia to London Heathrow Airport takes 24h 55m

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

Search flight deals

When did momondo last update prices for flights from Cambodia to London Heathrow Airport?
Prices for flights from Cambodia to London Heathrow Airport were last updated today.
How old do you have to be to fly from Cambodia to London Heathrow Airport?
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 Cambodia to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The travel and health documents you'll need for your trip to London Heathrow Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London Heathrow Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Eastbourne

Milton Keynes

Luton

Gatwick

Maidstone

Slough

Northampton

Stratford-upon-Avon

Swindon

Southend-on-Sea

Ipswich

Canterbury

Ilford

Wembley

Poole

Guildford

Chelmsford

Hayes

Dover

Folkestone

Why use momondo?

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

It is quick and easy to find Cambodia to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

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

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

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

momondo provides multiple filters to help you find the best flight to London from Cambodia. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for Cambodia to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.