Cheap flights from London to Cambodia from £372

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 30/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap return flights

Enter your travel dates to find the best prices.
Etihad Airways Logo
14:45 - 11:15
LHR
-
SAI
38h 30m
2 stops
Etihad Airways Logo
15:10 - 18:45
SAI
-
LHR
33h 35m
2 stops
£597Etihad Airways
Mon, 15 Jun - Tue, 30 Jun
Etihad Airways Logo
21:45 - 11:15
LHR
-
SAI
31h 30m
2 stops
Etihad Airways Logo
19:20 - 18:45
SAI
-
LHR
29h 25m
2 stops
£599Etihad Airways
Wed, 24 Jun - Fri, 26 Jun
Austrian Airlines Logo
06:00 - 18:55
LHR
-
SAI
30h 55m
2 stops
Austrian Airlines Logo
12:55 - 08:20
SAI
-
LHR
25h 25m
2 stops
£611Austrian Airlines
Fri, 25 Sep - Tue, 29 Sep
Etihad Airways Logo
09:30 - 17:50
LHR
-
SAI
26h 20m
2 stops
Etihad Airways Logo
15:10 - 18:45
SAI
-
LHR
33h 35m
2 stops
£612Etihad Airways
Tue, 16 Jun - Tue, 30 Jun
China Eastern Logo
10:30 - 21:00
LGW
-
SAI
51h 30m
2 stops
China Eastern Logo
22:00 - 14:00
SAI
-
LGW
47h 00m
2 stops
£617China Eastern
Thu, 29 Oct - Sat, 7 Nov
China Eastern Logo
10:30 - 21:00
LGW
-
SAI
51h 30m
2 stops
China Eastern Logo
22:00 - 14:00
SAI
-
LGW
47h 00m
3 stops
£667China Eastern
Thu, 29 Oct - Thu, 5 Nov
Multiple Airlines Logo
10:30 - 20:00
LGW
-
SAI
26h 30m
2 stops
Multiple Airlines Logo
20:45 - 13:45
SAI
-
LGW
24h 00m
1 stop
£697Multiple Airlines
Tue, 3 Nov - Mon, 9 Nov
Multiple Airlines Logo
09:15 - 12:40
LGW
-
SAI
20h 25m
2 stops
Multiple Airlines Logo
23:50 - 18:05
SAI
-
LGW
25h 15m
1 stop
£721Multiple Airlines
Tue, 3 Nov - Tue, 10 Nov
Emirates Logo
14:05 - 21:10
STN
-
SAI
24h 05m
2 stops
Emirates Logo
23:50 - 17:55
SAI
-
STN
25h 05m
2 stops
£728Emirates
Wed, 28 Oct - Tue, 17 Nov
Emirates Logo
23:55 - 21:10
LGW
-
SAI
38h 15m
2 stops
Emirates Logo
23:50 - 18:25
SAI
-
LGW
25h 35m
2 stops
£734Emirates
Sun, 1 Nov - Tue, 17 Nov

China Eastern flights from London to Cambodia

Our best China Eastern deals on London to Cambodia flight tickets
China Eastern
29 Oct
LGW10:30London Gatwick
51h 30m
2 stops
SAI21:00Siem Reap–Angkor Intl
7 Nov
SAI22:00Siem Reap–Angkor Intl
47h 00m
2 stops
LGW14:00London Gatwick
£617
China Eastern
29 Oct
LGW10:30London Gatwick
51h 30m
2 stops
SAI21:00Siem Reap–Angkor Intl
5 Nov
SAI22:00Siem Reap–Angkor Intl
47h 00m
3 stops
LGW14:00London Gatwick
£667
China Eastern
10 Nov
LHR21:00London Heathrow
41h 00m
2 stops
SAI21:00Siem Reap–Angkor Intl
3 Dec
SAI22:00Siem Reap–Angkor Intl
50h 30m
3 stops
LHR17:30London Heathrow
£695

Austrian Airlines flights from London to Cambodia

Our best Austrian Airlines deals on London to Cambodia flight tickets
Austrian Airlines
25 Sept
LHR06:00London Heathrow
30h 55m
2 stops
SAI18:55Siem Reap–Angkor Intl
29 Sept
SAI12:55Siem Reap–Angkor Intl
25h 25m
2 stops
LHR08:20London Heathrow
£611
Austrian Airlines
1 Nov
LHR06:00London Heathrow
29h 45m
2 stops
SAI18:45Siem Reap–Angkor Intl
8 Nov
SAI19:25Siem Reap–Angkor Intl
19h 55m
2 stops
LHR08:20London Heathrow
£740
Austrian Airlines
8 Sept
LHR19:30London Heathrow
17h 25m
2 stops
SAI18:55Siem Reap–Angkor Intl
2 Oct
SAI19:35Siem Reap–Angkor Intl
18h 45m
2 stops
LHR08:20London Heathrow
£748

momondo Fare Finder

 
Customise your flight search to find flights from London to Cambodia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 1 June 2026.
Use the filters below to find and compare flights from London 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

Mon 15/6

14:45-11:15

2 stops38h 30m

Siem Reap–Angkor Intl

Tue 30/6

15:10-18:45

2 stops33h 35m

£597

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Wed 24/6

21:45-11:15

2 stops31h 30m

Siem Reap–Angkor Intl

Fri 26/6

19:20-18:45

2 stops29h 25m

£599

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Fri 25/9

06:00-18:55

2 stops30h 55m

Siem Reap–Angkor Intl

Tue 29/9

12:55-08:20

2 stops25h 25m

£611

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Tue 16/6

09:30-17:50

2 stops26h 20m

Siem Reap–Angkor Intl

Tue 30/6

15:10-18:45

2 stops33h 35m

£612

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Thu 29/10

10:30-21:00

2 stops51h 30m

Siem Reap–Angkor Intl

Sat 7/11

22:00-14:00

2 stops47h 00m

£617

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Thu 29/10

10:30-21:00

2 stops51h 30m

Siem Reap–Angkor Intl

Thu 5/11

22:00-14:00

3 stops47h 00m

£667

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Tue 3/11

10:30-20:00

2 stops26h 30m

Siem Reap–Angkor Intl

Mon 9/11

20:45-13:45

1 stop24h 00m

£697
Fastest return journey

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Tue 3/11

09:15-12:40

2 stops20h 25m

Siem Reap–Angkor Intl

Tue 10/11

23:50-18:05

1 stop25h 15m

£721

LondonSiem Reap

STN - SAI

STNSAI

London Stansted

Wed 28/10

14:05-21:10

2 stops24h 05m

Siem Reap–Angkor Intl

Tue 17/11

23:50-17:55

2 stops25h 05m

£728

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Sun 1/11

23:55-21:10

2 stops38h 15m

Siem Reap–Angkor Intl

Tue 17/11

23:50-18:25

2 stops25h 35m

£734

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Cambodia from

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

What is the cheapest month to fly to Cambodia?

In general, October 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 £268. If you aren’t able to travel during the month of October, then book flights to Cambodia from London during September instead. Flights to Cambodia in September, while not as cheap as those in October, still average around £276.

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 £701 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 £586 on momondo.

Can stopping save me money on London to Cambodia flights?

You could potentially save up to 9% 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

Fastest flight time

17h 25m

Direct flights

None
The fastest flight from London to Cambodia takes 17h 25m
There are no direct flights from London to Cambodia. There are no popular flight routes from London to Cambodia.

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?

  • 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
Air ChinaPriceFrom £267Free CancellationRating
7.3
154 reviews
Search Air China flights
China SouthernPriceFrom £362Free CancellationRating
7.5
152 reviews
Search China Southern flights
Shenzhen AirlinesPriceFrom £437Free CancellationRating
7.9
26 reviews
Search Shenzhen Airlines flights
Etihad AirwaysPriceFrom £508Free CancellationRating
7.3
1,445 reviews
Search Etihad Airways flights
Austrian AirlinesPriceFrom £538Free CancellationRating
7.6
921 reviews
Search Austrian Airlines flights
Singapore AirlinesPriceFrom £561Free CancellationRating
8.2
1,527 reviews
Search Singapore Airlines flights
China EasternPriceFrom £576Free CancellationRating
7.3
221 reviews
Search China Eastern flights
Malaysia AirlinesPriceFrom £586Free CancellationRating
7.3
310 reviews
Search Malaysia Airlines flights
LufthansaPriceFrom £597Free CancellationRating
6.8
8,031 reviews
Search Lufthansa flights
Vietnam AirlinesPriceFrom £618Free CancellationRating
7.7
271 reviews
Search Vietnam Airlines 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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Wed 1/7
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