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Cheap flights from London Heathrow Airport to Krong Preah Sihanouk from £369

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 Krong Preah Sihanouk departing on 16/3. 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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0 bags
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Find the cheapest flights from London Heathrow Airport to Krong Preah Sihanouk

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
14:15 - 13:05LHR-KOS
39h 50m2 stops
Multiple Airlines Logo
13:30 - 06:25KOS-LHR
22h 55m2 stops
£747Multiple Airlines
Find Deal
Mon, 16 Mar - Mon, 30 Mar
Multiple Airlines Logo
08:35 - 09:35LHR-KOS
18h 00m2 stops
Multiple Airlines Logo
10:45 - 19:50KOS-LHR
40h 05m2 stops
£779Multiple Airlines
Find Deal
Sat, 17 Jan - Sat, 7 Feb
Multiple Airlines Logo
06:00 - 11:45LHR-KOS
22h 45m3 stops
Multiple Airlines Logo
13:35 - 17:55KOS-LHR
35h 20m3 stops
£782Multiple Airlines
Find Deal
Wed, 11 Feb - Sun, 22 Feb
Multiple Airlines Logo
21:10 - 13:05LHR-KOS
32h 55m2 stops
Multiple Airlines Logo
13:35 - 19:10KOS-LHR
36h 35m2 stops
£795Multiple Airlines
Find Deal
Wed, 11 Feb - Sun, 22 Feb
Vietnam Airlines Logo
11:00 - 09:35LHR-KOS
15h 35m1 stop
Vietnam Airlines Logo
10:45 - 10:30KOS-LHR
54h 45m2 stops
£807Vietnam Airlines
Find Deal
Sat, 17 Jan - Sat, 7 Feb
Multiple Airlines Logo
21:10 - 09:35LHR-KOS
29h 25m2 stops
Multiple Airlines Logo
13:30 - 05:55KOS-LHR
22h 25m1 stop
£835Multiple Airlines
Find Deal
Mon, 16 Mar - Mon, 30 Mar
Multiple Airlines Logo
08:05 - 13:05LHR-KOS
22h 00m2 stops
Multiple Airlines Logo
13:10 - 17:30KOS-LHR
35h 20m3 stops
£838Multiple Airlines
Find Deal
Sat, 17 Jan - Sat, 7 Feb
Multiple Airlines Logo
06:00 - 11:45LHR-KOS
22h 45m3 stops
Multiple Airlines Logo
13:35 - 11:40KOS-LHR
29h 05m2 stops
£855Multiple Airlines
Find Deal
Wed, 11 Feb - Sun, 22 Feb
Multiple Airlines Logo
21:25 - 13:05LHR-KOS
32h 40m1 stop
Multiple Airlines Logo
13:30 - 05:55KOS-LHR
22h 25m1 stop
£878Multiple Airlines
Find Deal
Mon, 16 Mar - Mon, 30 Mar
Vietnam Airlines Logo
06:20 - 19:30LHR-KOS
30h 10m2 stops
Vietnam Airlines Logo
10:45 - 07:15KOS-LHR
27h 30m2 stops
£995Vietnam Airlines
Find Deal
Wed, 11 Mar - Sun, 15 Mar

Vietnam Airlines flights from London Heathrow Airport to Krong Preah Sihanouk

Our best Vietnam Airlines deals on London Heathrow Airport to Krong Preah Sihanouk flight tickets
Vietnam Airlines
17 Jan
LHR11:00London Heathrow
15h 35m
1 stop
KOS09:35Krong Preah Sihanouk Sihanoukville
7 Feb
KOS10:45Krong Preah Sihanouk Sihanoukville
54h 45m
2 stops
LHR10:30London Heathrow
£807
Find similar
Vietnam Airlines
11 Mar
LHR06:20London Heathrow
30h 10m
2 stops
KOS19:30Krong Preah Sihanouk Sihanoukville
15 Mar
KOS10:45Krong Preah Sihanouk Sihanoukville
27h 30m
2 stops
LHR07:15London Heathrow
£995
Find similar
Vietnam Airlines
11 Mar
LHR06:20London Heathrow
30h 10m
2 stops
KOS19:30Krong Preah Sihanouk Sihanoukville
15 Mar
KOS10:45Krong Preah Sihanouk Sihanoukville
27h 30m
2 stops
LHR07:15London Heathrow
£1,003
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London Heathrow Airport to Krong Preah Sihanouk 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 31 October 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Krong Preah Sihanouk that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonKrong Preah Sihanouk

LHR - KOS

LHRKOS

London Heathrow

Mon 16/3

14:15-13:05

2 stops39h 50m

Krong Preah Sihanouk Sihanoukville

Mon 30/3

13:30-06:25

2 stops22h 55m

£747

LondonKrong Preah Sihanouk

LHR - KOS

LHRKOS

London Heathrow

Sat 17/1

08:35-09:35

2 stops18h 00m

Krong Preah Sihanouk Sihanoukville

Sat 7/2

10:45-19:50

2 stops40h 05m

£779

LondonKrong Preah Sihanouk

LHR - KOS

LHRKOS

London Heathrow

Wed 11/2

06:00-11:45

3 stops22h 45m

Krong Preah Sihanouk Sihanoukville

Sun 22/2

13:35-17:55

3 stops35h 20m

£782

LondonKrong Preah Sihanouk

LHR - KOS

LHRKOS

London Heathrow

Wed 11/2

21:10-13:05

2 stops32h 55m

Krong Preah Sihanouk Sihanoukville

Sun 22/2

13:35-19:10

2 stops36h 35m

£795

LondonKrong Preah Sihanouk

LHR - KOS

LHRKOS

London Heathrow

Sat 17/1

11:00-09:35

1 stop15h 35m

Krong Preah Sihanouk Sihanoukville

Sat 7/2

10:45-10:30

2 stops54h 45m

£807

LondonKrong Preah Sihanouk

LHR - KOS

LHRKOS

London Heathrow

Mon 16/3

21:10-09:35

2 stops29h 25m

Krong Preah Sihanouk Sihanoukville

Mon 30/3

13:30-05:55

1 stop22h 25m

£835

LondonKrong Preah Sihanouk

LHR - KOS

LHRKOS

London Heathrow

Sat 17/1

08:05-13:05

2 stops22h 00m

Krong Preah Sihanouk Sihanoukville

Sat 7/2

13:10-17:30

3 stops35h 20m

£838

LondonKrong Preah Sihanouk

LHR - KOS

LHRKOS

London Heathrow

Wed 11/2

06:00-11:45

3 stops22h 45m

Krong Preah Sihanouk Sihanoukville

Sun 22/2

13:35-11:40

2 stops29h 05m

£855

LondonKrong Preah Sihanouk

LHR - KOS

LHRKOS

London Heathrow

Mon 16/3

21:25-13:05

1 stop32h 40m

Krong Preah Sihanouk Sihanoukville

Mon 30/3

13:30-05:55

1 stop22h 25m

£878

LondonKrong Preah Sihanouk

LHR - KOS

LHRKOS

London Heathrow

Wed 11/3

06:20-19:30

2 stops30h 10m

Krong Preah Sihanouk Sihanoukville

Sun 15/3

10:45-07:15

2 stops27h 30m

£995

Flights are sorted by cheapest return flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

When to book flights from London Heathrow Airport to Krong Preah Sihanouk

Are you open to changing your travel dates? Check out the ideal times to fly from London Heathrow Airport to Krong Preah Sihanouk according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap London Heathrow Airport to Krong Preah Sihanouk (LHR to KOS) flight deals and tips

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

Direct flights

None
There are no direct flights from London Heathrow Airport to Krong Preah Sihanouk. There are no popular flight routes from London Heathrow Airport to Krong Preah Sihanouk.
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  • How far is London Heathrow to Krong Preah Sihanouk Sihanoukville by plane?

    The distance between London Heathrow and Krong Preah Sihanouk Sihanoukville is about 6229.7 mi. Flights usually cover this in 15h 35m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from London Heathrow Airport to Krong Preah Sihanouk Sihanoukville Airport?

    Prices for flights from London Heathrow Airport to Krong Preah Sihanouk Sihanoukville Airport refresh daily.

  • How old do you have to be to fly from London Heathrow Airport to Krong Preah Sihanouk Sihanoukville Airport?

    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 Krong Preah Sihanouk Sihanoukville Airport.

  • What documentation or ID do you need to fly to Krong Preah Sihanouk Sihanoukville Airport?

    The required travel and health documents for your Krong Preah Sihanouk Sihanoukville Airport 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 Krong Preah Sihanouk Sihanoukville Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • How do I get Price Alerts for flights from London Heathrow Airport to Krong Preah Sihanouk?

    Search flight deals from London Heathrow Airport to Krong Preah Sihanouk. While viewing offers you’ll have the option to create a Price Alert.

  • How can I save money on flights from London Heathrow Airport to Krong Preah Sihanouk with momondo?

    By using tools like our “Price Calendar”, you can see the best days for return flights on your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Travelling to a place near Krong Preah Sihanouk?

Book flights to Krong Preah Sihanouk if you plan to visit one of these locations
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Why use momondo?

Why should I use momondo to find a flight deal from London to Krong Preah Sihanouk?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Krong Preah Sihanouk for you.

Can I find flights from London to Krong Preah Sihanouk with flexible booking policies on momondo?

momondo does allow users to show only those flights to Krong Preah Sihanouk from London which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from London to Krong Preah Sihanouk?

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

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

Of course. momondo tracks the price of London to Krong Preah Sihanouk 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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