Cheap flights from London to Cambodia from £303

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 11/5. 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.
China Eastern Logo
21:20 - 20:10
LHR
-
SAI
64h 50m
3 stops
China Eastern Logo
21:10 - 18:40
SAI
-
LHR
27h 30m
2 stops
£595China Eastern
Tue, 9 Jun - Wed, 17 Jun
China Eastern Logo
21:20 - 20:10
LHR
-
SAI
40h 50m
3 stops
China Eastern Logo
21:10 - 18:40
SAI
-
LHR
27h 30m
2 stops
£607China Eastern
Wed, 10 Jun - Wed, 17 Jun
China Eastern Logo
21:20 - 20:10
LHR
-
SAI
40h 50m
2 stops
China Eastern Logo
21:10 - 18:40
SAI
-
LHR
27h 30m
2 stops
£608China Eastern
Wed, 29 Apr - Wed, 20 May
Multiple Airlines Logo
10:25 - 14:50
LGW
-
SAI
22h 25m
2 stops
Multiple Airlines Logo
15:35 - 07:25
SAI
-
LGW
21h 50m
2 stops
£611Multiple Airlines
Fri, 4 Sep - Sat, 3 Oct
Multiple Airlines Logo
11:35 - 18:45
LGW
-
SAI
25h 10m
2 stops
Multiple Airlines Logo
19:30 - 15:00
SAI
-
LGW
25h 30m
2 stops
£615Multiple Airlines
Wed, 10 Jun - Wed, 17 Jun
Multiple Airlines Logo
11:35 - 18:45
LGW
-
SAI
25h 10m
2 stops
Multiple Airlines Logo
19:30 - 15:00
SAI
-
LGW
25h 30m
2 stops
£617Multiple Airlines
Wed, 10 Jun - Wed, 17 Jun
SWISS Logo
09:25 - 18:45
LGW
-
SAI
27h 20m
2 stops
SWISS Logo
09:40 - 08:25
SAI
-
LGW
28h 45m
2 stops
£635SWISS
Tue, 9 Jun - Tue, 16 Jun
SWISS Logo
12:10 - 18:45
LHR
-
SAI
24h 35m
2 stops
SWISS Logo
09:40 - 21:45
SAI
-
LHR
18h 05m
2 stops
£636SWISS
Tue, 9 Jun - Tue, 16 Jun
Emirates Logo
21:05 - 21:30
STN
-
SAI
42h 25m
2 stops
Emirates Logo
23:50 - 18:45
SAI
-
STN
24h 55m
2 stops
£717Emirates
Thu, 16 Apr - Tue, 21 Apr
Emirates Logo
21:05 - 21:30
STN
-
SAI
42h 25m
2 stops
Emirates Logo
23:50 - 18:45
SAI
-
STN
24h 55m
2 stops
£717Emirates
Sun, 12 Apr - Tue, 12 May

China Eastern flights from London to Cambodia

Our best China Eastern deals on London to Cambodia flight tickets
China Eastern
9 Jun
LHR21:20London Heathrow
64h 50m
3 stops
SAI20:10Siem Reap–Angkor Intl
17 Jun
SAI21:10Siem Reap–Angkor Intl
27h 30m
2 stops
LHR18:40London Heathrow
£595
China Eastern
10 Jun
LHR21:20London Heathrow
40h 50m
3 stops
SAI20:10Siem Reap–Angkor Intl
17 Jun
SAI21:10Siem Reap–Angkor Intl
27h 30m
2 stops
LHR18:40London Heathrow
£607
China Eastern
29 Apr
LHR21:20London Heathrow
40h 50m
2 stops
SAI20:10Siem Reap–Angkor Intl
20 May
SAI21:10Siem Reap–Angkor Intl
27h 30m
2 stops
LHR18:40London Heathrow
£608

Emirates flights from London to Cambodia

Our best Emirates deals on London to Cambodia flight tickets
Emirates
16 Apr
STN21:05London Stansted
42h 25m
2 stops
SAI21:30Siem Reap–Angkor Intl
21 Apr
SAI23:50Siem Reap–Angkor Intl
24h 55m
2 stops
STN18:45London Stansted
£717
Emirates
12 Apr
STN21:05London Stansted
42h 25m
2 stops
SAI21:30Siem Reap–Angkor Intl
12 May
SAI23:50Siem Reap–Angkor Intl
24h 55m
2 stops
STN18:45London Stansted
£717
Emirates
16 Apr
LGW21:45London Gatwick
41h 45m
2 stops
SAI21:30Siem Reap–Angkor Intl
21 Apr
SAI23:50Siem Reap–Angkor Intl
25h 55m
2 stops
LGW19:45London Gatwick
£723

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 23 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

Tue 9/6

21:20-20:10

3 stops64h 50m

Siem Reap–Angkor Intl

Wed 17/6

21:10-18:40

2 stops27h 30m

£595

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Wed 10/6

21:20-20:10

3 stops40h 50m

Siem Reap–Angkor Intl

Wed 17/6

21:10-18:40

2 stops27h 30m

£607

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Wed 29/4

21:20-20:10

2 stops40h 50m

Siem Reap–Angkor Intl

Wed 20/5

21:10-18:40

2 stops27h 30m

£608

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Fri 4/9

10:25-14:50

2 stops22h 25m

Siem Reap–Angkor Intl

Sat 3/10

15:35-07:25

2 stops21h 50m

£611

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Wed 10/6

11:35-18:45

2 stops25h 10m

Siem Reap–Angkor Intl

Wed 17/6

19:30-15:00

2 stops25h 30m

£615

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Wed 10/6

11:35-18:45

2 stops25h 10m

Siem Reap–Angkor Intl

Wed 17/6

19:30-15:00

2 stops25h 30m

£617

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Tue 9/6

09:25-18:45

2 stops27h 20m

Siem Reap–Angkor Intl

Tue 16/6

09:40-08:25

2 stops28h 45m

£635
Fastest return journey

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Tue 9/6

12:10-18:45

2 stops24h 35m

Siem Reap–Angkor Intl

Tue 16/6

09:40-21:45

2 stops18h 05m

£636

LondonSiem Reap

STN - SAI

STNSAI

London Stansted

Thu 16/4

21:05-21:30

2 stops42h 25m

Siem Reap–Angkor Intl

Tue 21/4

23:50-18:45

2 stops24h 55m

£717

LondonSiem Reap

STN - SAI

STNSAI

London Stansted

Sun 12/4

21:05-21:30

2 stops42h 25m

Siem Reap–Angkor Intl

Tue 12/5

23:50-18:45

2 stops24h 55m

£717

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, 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 £526. 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 £553.

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 £706 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 £613 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

17h 45m

Direct flights

None
The fastest flight from London to Cambodia takes 17h 45m
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 £269Free CancellationRating
7.3
142 reviews
Search Air China flights
China SouthernPriceFrom £365Free CancellationRating
7.4
145 reviews
Search China Southern flights
Shenzhen AirlinesPriceFrom £418Free CancellationRating
7.8
25 reviews
Search Shenzhen Airlines flights
China EasternPriceFrom £516Free CancellationRating
7.2
198 reviews
Search China Eastern flights
Etihad AirwaysPriceFrom £518Free CancellationRating
7.3
1,429 reviews
Search Etihad Airways flights
Austrian AirlinesPriceFrom £543Free CancellationRating
7.6
902 reviews
Search Austrian Airlines flights
Singapore AirlinesPriceFrom £569Free CancellationRating
8.2
1,484 reviews
Search Singapore Airlines flights
Malaysia AirlinesPriceFrom £592Free CancellationRating
7.3
297 reviews
Search Malaysia Airlines flights
LufthansaPriceFrom £602Free CancellationRating
6.8
7,860 reviews
Search Lufthansa flights
Vietnam AirlinesPriceFrom £621Free CancellationRating
7.7
245 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

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1 adult
Wed 22/4
Wed 29/4

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