Cheap flights from London to Cambodia from £345

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 15/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
16:15 - 18:45
LHR
-
SAI
20h 30m
2 stops
Multiple Airlines Logo
19:30 - 07:30
SAI
-
LHR
42h 00m
2 stops
£577Multiple Airlines
Wed, 20 May - Wed, 27 May
Multiple Airlines Logo
16:15 - 18:45
LHR
-
SAI
20h 30m
2 stops
Multiple Airlines Logo
09:45 - 07:30
SAI
-
LHR
27h 45m
2 stops
£582Multiple Airlines
Mon, 18 May - Sun, 24 May
Multiple Airlines Logo
20:45 - 11:10
LHR
-
SAI
32h 25m
3 stops
Multiple Airlines Logo
19:05 - 18:45
SAI
-
LHR
29h 40m
2 stops
£643Multiple Airlines
Mon, 18 May - Sun, 24 May
Emirates Logo
21:45 - 21:30
LGW
-
SAI
41h 45m
2 stops
Emirates Logo
23:50 - 19:45
SAI
-
LGW
25h 55m
2 stops
£742Emirates
Thu, 23 Apr - Tue, 5 May
Emirates Logo
14:35 - 21:30
LGW
-
SAI
24h 55m
2 stops
Emirates Logo
23:50 - 19:45
SAI
-
LGW
25h 55m
2 stops
£744Emirates
Fri, 24 Apr - Tue, 5 May
Emirates Logo
21:05 - 21:30
STN
-
SAI
18h 25m
2 stops
Emirates Logo
13:05 - 12:55
SAI
-
STN
29h 50m
2 stops
£745Emirates
Mon, 27 Apr - Mon, 18 May
Emirates Logo
21:45 - 12:20
LGW
-
SAI
32h 35m
2 stops
Emirates Logo
13:05 - 19:45
SAI
-
LGW
36h 40m
2 stops
£749Emirates
Mon, 27 Apr - Mon, 18 May
SWISS Logo
09:15 - 18:45
LCY
-
SAI
27h 30m
2 stops
SWISS Logo
09:45 - 08:40
SAI
-
LCY
28h 55m
2 stops
£976SWISS
Wed, 20 May - Wed, 27 May
SWISS Logo
13:10 - 18:45
LCY
-
SAI
23h 35m
2 stops
SWISS Logo
10:30 - 08:40
SAI
-
LCY
28h 10m
2 stops
£1,085SWISS
Fri, 15 May - Mon, 1 Jun
SWISS Logo
13:10 - 18:45
LCY
-
SAI
23h 35m
2 stops
SWISS Logo
09:45 - 07:25
SAI
-
LCY
27h 40m
2 stops
£1,098SWISS
Fri, 15 May - Sun, 31 May

Emirates flights from London to Cambodia

Our best Emirates deals on London to Cambodia flight tickets
Emirates
23 Apr
LGW21:45London Gatwick
41h 45m
2 stops
SAI21:30Siem Reap–Angkor Intl
5 May
SAI23:50Siem Reap–Angkor Intl
25h 55m
2 stops
LGW19:45London Gatwick
£742
Emirates
24 Apr
LGW14:35London Gatwick
24h 55m
2 stops
SAI21:30Siem Reap–Angkor Intl
5 May
SAI23:50Siem Reap–Angkor Intl
25h 55m
2 stops
LGW19:45London Gatwick
£744
Emirates
27 Apr
STN21:05London Stansted
18h 25m
2 stops
SAI21:30Siem Reap–Angkor Intl
18 May
SAI13:05Siem Reap–Angkor Intl
29h 50m
2 stops
STN12:55London Stansted
£745

Singapore Airlines flights from London to Cambodia

Our best Singapore Airlines deals on London to Cambodia flight tickets
Singapore Airlines
17 Aug
LGW13:10London Gatwick
38h 30m
1 stop
SAI09:40Siem Reap–Angkor Intl
23 Aug
SAI16:00Siem Reap–Angkor Intl
24h 10m
1 stop
LGW10:10London Gatwick
£775
Singapore Airlines
11 Apr
LGW13:00London Gatwick
20h 10m
1 stop
SAI15:10Siem Reap–Angkor Intl
15 May
SAI10:30Siem Reap–Angkor Intl
29h 00m
1 stop
LGW09:30London Gatwick
£970
Singapore Airlines
11 Apr
LGW13:00London Gatwick
20h 10m
1 stop
SAI15:10Siem Reap–Angkor Intl
4 May
SAI10:30Siem Reap–Angkor Intl
29h 00m
1 stop
LGW09:30London Gatwick
£1,205

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 30 March 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

Wed 20/5

16:15-18:45

2 stops20h 30m

Siem Reap–Angkor Intl

Wed 27/5

19:30-07:30

2 stops42h 00m

£577
Fastest return journey

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Mon 18/5

16:15-18:45

2 stops20h 30m

Siem Reap–Angkor Intl

Sun 24/5

09:45-07:30

2 stops27h 45m

£582

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Mon 18/5

20:45-11:10

3 stops32h 25m

Siem Reap–Angkor Intl

Sun 24/5

19:05-18:45

2 stops29h 40m

£643

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Thu 23/4

21:45-21:30

2 stops41h 45m

Siem Reap–Angkor Intl

Tue 5/5

23:50-19:45

2 stops25h 55m

£742

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Fri 24/4

14:35-21:30

2 stops24h 55m

Siem Reap–Angkor Intl

Tue 5/5

23:50-19:45

2 stops25h 55m

£744

LondonSiem Reap

STN - SAI

STNSAI

London Stansted

Mon 27/4

21:05-21:30

2 stops18h 25m

Siem Reap–Angkor Intl

Mon 18/5

13:05-12:55

2 stops29h 50m

£745

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Mon 27/4

21:45-12:20

2 stops32h 35m

Siem Reap–Angkor Intl

Mon 18/5

13:05-19:45

2 stops36h 40m

£749

LondonSiem Reap

LCY - SAI

LCYSAI

London City

Wed 20/5

09:15-18:45

2 stops27h 30m

Siem Reap–Angkor Intl

Wed 27/5

09:45-08:40

2 stops28h 55m

£976

LondonSiem Reap

LCY - SAI

LCYSAI

London City

Fri 15/5

13:10-18:45

2 stops23h 35m

Siem Reap–Angkor Intl

Mon 1/6

10:30-08:40

2 stops28h 10m

£1,085

LondonSiem Reap

LCY - SAI

LCYSAI

London City

Fri 15/5

13:10-18:45

2 stops23h 35m

Siem Reap–Angkor Intl

Sun 31/5

09:45-07:25

2 stops27h 40m

£1,098

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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2

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, 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 £529. If you aren’t able to travel during the month of November, then book flights to Cambodia from London during September instead. Flights to Cambodia in September, while not as cheap as those in November, still average around £556.

How far in advance should I book a flight 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 £711 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 £617 on momondo.

Can stopping save me money on London to Cambodia flights?

You could potentially save up to 11% 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

16h 20m

Direct flights

None
The fastest flight from London to Cambodia takes 16h 20m
There are no direct flights from London to Cambodia. There are no popular flight routes 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 £270Free CancellationRating
7.3
144 reviews
Search Air China flights
China SouthernPriceFrom £367Free CancellationRating
7.4
146 reviews
Search China Southern flights
Shenzhen AirlinesPriceFrom £420Free CancellationRating
7.8
25 reviews
Search Shenzhen Airlines flights
China EasternPriceFrom £519Free CancellationRating
7.2
200 reviews
Search China Eastern flights
Etihad AirwaysPriceFrom £521Free CancellationRating
7.3
1,431 reviews
Search Etihad Airways flights
Austrian AirlinesPriceFrom £546Free CancellationRating
7.6
903 reviews
Search Austrian Airlines flights
Singapore AirlinesPriceFrom £572Free CancellationRating
8.2
1,484 reviews
Search Singapore Airlines flights
Malaysia AirlinesPriceFrom £595Free CancellationRating
7.3
300 reviews
Search Malaysia Airlines flights
LufthansaPriceFrom £606Free CancellationRating
6.8
7,877 reviews
Search Lufthansa flights
Vietnam AirlinesPriceFrom £625Free CancellationRating
7.7
250 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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1 adult
Wed 29/4
Wed 6/5

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