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Cheap flights from London Heathrow Airport to Cambodia from £396

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 Heathrow Airport to Cambodia departing on 8/4. 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
0 bags

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Find the cheapest flights from London Heathrow Airport to Cambodia

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
13:50 - 09:35
LHR
-
KOS
36h 45m2 stops
Multiple Airlines Logo
16:30 - 21:55
KOS
-
LHR
36h 25m2 stops
£1,104Multiple Airlines
Thu, 12 Feb - Thu, 19 Feb
Multiple Airlines Logo
13:50 - 09:35
LHR
-
KOS
36h 45m2 stops
Multiple Airlines Logo
17:40 - 17:30
KOS
-
LHR
30h 50m3 stops
£1,199Multiple Airlines
Thu, 12 Feb - Thu, 19 Feb
Multiple Airlines Logo
21:05 - 11:45
LHR
-
KOS
31h 40m2 stops
Multiple Airlines Logo
12:15 - 05:35
KOS
-
LHR
24h 20m1 stop
£1,210Multiple Airlines
Thu, 12 Feb - Thu, 19 Feb
Vietnam Airlines Logo
12:20 - 09:35
LHR
-
KOS
38h 15m2 stops
Vietnam Airlines Logo
16:30 - 07:15
KOS
-
LHR
45h 45m2 stops
£1,397Vietnam Airlines
Thu, 15 Jan - Mon, 19 Jan
Vietnam Airlines Logo
17:45 - 09:35
LHR
-
KOS
32h 50m2 stops
Vietnam Airlines Logo
16:30 - 07:15
KOS
-
LHR
21h 45m1 stop
£1,427Vietnam Airlines
Thu, 15 Jan - Mon, 19 Jan
Multiple Airlines Logo
10:25 - 13:05
LHR
-
KOS
19h 40m1 stop
Multiple Airlines Logo
12:15 - 05:35
KOS
-
LHR
24h 20m1 stop
£1,469Multiple Airlines
Thu, 12 Feb - Thu, 19 Feb
Vietnam Airlines Logo
12:20 - 09:35
LHR
-
KOS
38h 15m2 stops
Vietnam Airlines Logo
16:30 - 07:15
KOS
-
LHR
45h 45m2 stops
£1,597Vietnam Airlines
Thu, 15 Jan - Mon, 19 Jan
Vietnam Airlines Logo
12:20 - 09:35
LHR
-
KOS
38h 15m2 stops
Vietnam Airlines Logo
16:30 - 07:15
KOS
-
LHR
21h 45m1 stop
£1,627Vietnam Airlines
Thu, 15 Jan - Mon, 19 Jan

Vietnam Airlines flights from London Heathrow Airport to Cambodia

Our best Vietnam Airlines deals on London Heathrow Airport to Cambodia flight tickets
Vietnam Airlines
15 Jan
LHR12:20London Heathrow
38h 15m
2 stops
KOS09:35Krong Preah Sihanouk Sihanoukville
19 Jan
KOS16:30Krong Preah Sihanouk Sihanoukville
45h 45m
2 stops
LHR07:15London Heathrow
£1,397
Find similar
Vietnam Airlines
15 Jan
LHR17:45London Heathrow
32h 50m
2 stops
KOS09:35Krong Preah Sihanouk Sihanoukville
19 Jan
KOS16:30Krong Preah Sihanouk Sihanoukville
21h 45m
1 stop
LHR07:15London Heathrow
£1,427
Find similar
Vietnam Airlines
15 Jan
LHR12:20London Heathrow
38h 15m
2 stops
KOS09:35Krong Preah Sihanouk Sihanoukville
19 Jan
KOS16:30Krong Preah Sihanouk Sihanoukville
45h 45m
2 stops
LHR07:15London Heathrow
£1,597
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London Heathrow Airport 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 December 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Cambodia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonKrong Preah Sihanouk

LHR - KOS

LHRKOS

London Heathrow

Thu 12/2

13:50-09:35

2 stops36h 45m

Krong Preah Sihanouk Sihanoukville

Thu 19/2

16:30-21:55

2 stops36h 25m

£1,104

LondonKrong Preah Sihanouk

LHR - KOS

LHRKOS

London Heathrow

Thu 12/2

13:50-09:35

2 stops36h 45m

Krong Preah Sihanouk Sihanoukville

Thu 19/2

17:40-17:30

3 stops30h 50m

£1,199

LondonKrong Preah Sihanouk

LHR - KOS

LHRKOS

London Heathrow

Thu 12/2

21:05-11:45

2 stops31h 40m

Krong Preah Sihanouk Sihanoukville

Thu 19/2

12:15-05:35

1 stop24h 20m

£1,210

LondonKrong Preah Sihanouk

LHR - KOS

LHRKOS

London Heathrow

Thu 15/1

12:20-09:35

2 stops38h 15m

Krong Preah Sihanouk Sihanoukville

Mon 19/1

16:30-07:15

2 stops45h 45m

£1,397

LondonKrong Preah Sihanouk

LHR - KOS

LHRKOS

London Heathrow

Thu 15/1

17:45-09:35

2 stops32h 50m

Krong Preah Sihanouk Sihanoukville

Mon 19/1

16:30-07:15

1 stop21h 45m

£1,427

LondonKrong Preah Sihanouk

LHR - KOS

LHRKOS

London Heathrow

Thu 12/2

10:25-13:05

1 stop19h 40m

Krong Preah Sihanouk Sihanoukville

Thu 19/2

12:15-05:35

1 stop24h 20m

£1,469

LondonKrong Preah Sihanouk

LHR - KOS

LHRKOS

London Heathrow

Thu 15/1

12:20-09:35

2 stops38h 15m

Krong Preah Sihanouk Sihanoukville

Mon 19/1

16:30-07:15

2 stops45h 45m

£1,597

LondonKrong Preah Sihanouk

LHR - KOS

LHRKOS

London Heathrow

Thu 15/1

12:20-09:35

2 stops38h 15m

Krong Preah Sihanouk Sihanoukville

Mon 19/1

16:30-07:15

1 stop21h 45m

£1,627

LondonKrong Preah Sihanouk

LHR - KOS

LHRKOS

London Heathrow

Wed 8/4

21:20-09:15

2 stops29h 55m

£396

LondonKrong Preah Sihanouk

LHR - KOS

LHRKOS

London Heathrow

Fri 10/4

22:00-13:00

3 stops57h 00m

£413

Flights are sorted by cheapest return flights first.

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

See travel insights to Cambodia from

How to get the cheapest flight ticket from London Heathrow Airport 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 Heathrow Airport to Cambodia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £562. If you aren’t able to travel during the month of November, then book flights to Cambodia from London Heathrow Airport during May instead. Flights to Cambodia in May, while not as cheap as those in November, still average around £584.

How far in advance should I book a flight to Cambodia?

You are more likely to see cheaper flights to Cambodia from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Cambodia for around £700 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 Heathrow Airport for as low as £631 on momondo.

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

You could potentially save up to 20% on your flight if you consider stops on a London Heathrow Airport to Cambodia flight.

Cheap London Heathrow Airport to Cambodia flight deals and tips

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

Fastest flight time

14h 30m

Direct flights

None
The fastest flight from London Heathrow Airport to Cambodia takes 14h 30m
There are no direct flights from London Heathrow Airport to Cambodia. There are no popular flight routes from London Heathrow Airport to Cambodia.
Search flight deals

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

    Prices for flights from London Heathrow Airport to Cambodia refresh daily.

  • How many operators does momondo search for flights from London Heathrow Airport to Cambodia?

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Heathrow Airport to Cambodia.

  • What documentation or ID do you need to fly to Cambodia?

    The required travel and health documents for your Cambodia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Cambodia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from London Heathrow Airport to Cambodia

Compare and see reviews for airlines that fly from London Heathrow Airport to Cambodia with momondo
Airline
Rating
Free Cancellation
Price
Air ChinaPriceFrom £266Free CancellationRating
7.2
135 reviews
Search Air China flights
China SouthernPriceFrom £396Free CancellationRating
7.5
123 reviews
Search China Southern flights
Shenzhen AirlinesPriceFrom £414Free CancellationRating
7.6
22 reviews
Search Shenzhen Airlines flights
Etihad AirwaysPriceFrom £511Free CancellationRating
7.4
1,345 reviews
Search Etihad Airways flights
China EasternPriceFrom £547Free CancellationRating
7.2
185 reviews
Search China Eastern flights
Austrian AirlinesPriceFrom £579Free CancellationRating
7.5
886 reviews
Search Austrian Airlines flights
Singapore AirlinesPriceFrom £581Free CancellationRating
8.1
1,422 reviews
Search Singapore Airlines flights
Malaysia AirlinesPriceFrom £585Free CancellationRating
7.3
286 reviews
Search Malaysia Airlines flights
Vietnam AirlinesPriceFrom £612Free CancellationRating
7.6
216 reviews
Search Vietnam Airlines flights
British AirwaysPriceFrom £644Free CancellationRating
6.7
7,625 reviews
Search British Airways flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to Cambodia . Millions of users trust and use momondo every year so you are in good hands.

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 in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Cambodia from London.

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

Of course. momondo tracks the price of London to Cambodia flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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