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Cheap flights from London Heathrow Airport to Krong Preah Sihanouk from £399

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 15/3. 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
11:00 - 11:45
LHR
-
KOS
18h 45m
1 stop
Multiple Airlines Logo
13:30 - 15:10
KOS
-
LHR
31h 40m
2 stops
£1,279Multiple Airlines
Wed, 1 Apr - Wed, 8 Apr
Multiple Airlines Logo
21:20 - 19:40
LHR
-
KOS
40h 20m
2 stops
Multiple Airlines Logo
09:50 - 07:05
KOS
-
LHR
27h 15m
2 stops
£1,295Multiple Airlines
Sat, 4 Apr - Sat, 11 Apr
Multiple Airlines Logo
21:05 - 13:00
LHR
-
KOS
33h 55m
2 stops
Multiple Airlines Logo
13:30 - 16:35
KOS
-
LHR
33h 05m
1 stop
£1,315Multiple Airlines
Wed, 1 Apr - Wed, 8 Apr
Multiple Airlines Logo
06:30 - 13:00
LHR
-
KOS
24h 30m
3 stops
Multiple Airlines Logo
09:50 - 07:05
KOS
-
LHR
27h 15m
2 stops
£1,322Multiple Airlines
Sat, 4 Apr - Sat, 11 Apr
Multiple Airlines Logo
06:30 - 11:45
LHR
-
KOS
23h 15m
2 stops
Multiple Airlines Logo
13:30 - 09:35
KOS
-
LHR
26h 05m
2 stops
£1,330Multiple Airlines
Wed, 1 Apr - Wed, 8 Apr
Multiple Airlines Logo
11:00 - 13:00
LHR
-
KOS
20h 00m
1 stop
Multiple Airlines Logo
09:50 - 20:00
KOS
-
LHR
40h 10m
2 stops
£1,412Multiple Airlines
Sat, 4 Apr - Sat, 11 Apr
Multiple Airlines Logo
11:00 - 11:45
LHR
-
KOS
18h 45m
1 stop
Multiple Airlines Logo
13:30 - 16:35
KOS
-
LHR
33h 05m
1 stop
£1,416Multiple Airlines
Wed, 1 Apr - Wed, 8 Apr
Multiple Airlines Logo
11:00 - 11:45
LHR
-
KOS
18h 45m
1 stop
Multiple Airlines Logo
13:30 - 16:35
KOS
-
LHR
33h 05m
1 stop
£1,434Multiple Airlines
Wed, 1 Apr - Wed, 8 Apr
Multiple Airlines Logo
09:30 - 13:00
LHR
-
KOS
21h 30m
2 stops
Multiple Airlines Logo
12:15 - 07:00
KOS
-
LHR
24h 45m
2 stops
£1,482Multiple Airlines
Thu, 2 Apr - Thu, 9 Apr
Multiple Airlines Logo
16:50 - 19:40
LHR
-
KOS
20h 50m
2 stops
Multiple Airlines Logo
09:50 - 07:05
KOS
-
LHR
27h 15m
2 stops
£1,494Multiple Airlines
Wed, 1 Apr - Wed, 8 Apr

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
5 Mar
LHR12:20London Heathrow
38h 25m
2 stops
KOS09:45Krong Preah Sihanouk Sihanoukville
9 Mar
KOS16:30Krong Preah Sihanouk Sihanoukville
21h 45m
1 stop
LHR07:15London Heathrow
£1,580
Vietnam Airlines
5 Mar
LHR17:45London Heathrow
33h 00m
2 stops
KOS09:45Krong Preah Sihanouk Sihanoukville
9 Mar
KOS16:30Krong Preah Sihanouk Sihanoukville
21h 45m
1 stop
LHR07:15London Heathrow
£1,590
Vietnam Airlines
5 Mar
LHR12:20London Heathrow
38h 25m
2 stops
KOS09:45Krong Preah Sihanouk Sihanoukville
9 Mar
KOS16:30Krong Preah Sihanouk Sihanoukville
21h 45m
1 stop
LHR07:15London Heathrow
£1,673

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 19 February 2026.
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

Wed 1/4

11:00-11:45

1 stop18h 45m

Krong Preah Sihanouk Sihanoukville

Wed 8/4

13:30-15:10

2 stops31h 40m

£1,279

LondonKrong Preah Sihanouk

LHR - KOS

LHRKOS

London Heathrow

Sat 4/4

21:20-19:40

2 stops40h 20m

Krong Preah Sihanouk Sihanoukville

Sat 11/4

09:50-07:05

2 stops27h 15m

£1,295

LondonKrong Preah Sihanouk

LHR - KOS

LHRKOS

London Heathrow

Wed 1/4

21:05-13:00

2 stops33h 55m

Krong Preah Sihanouk Sihanoukville

Wed 8/4

13:30-16:35

1 stop33h 05m

£1,315

LondonKrong Preah Sihanouk

LHR - KOS

LHRKOS

London Heathrow

Sat 4/4

06:30-13:00

3 stops24h 30m

Krong Preah Sihanouk Sihanoukville

Sat 11/4

09:50-07:05

2 stops27h 15m

£1,322

LondonKrong Preah Sihanouk

LHR - KOS

LHRKOS

London Heathrow

Wed 1/4

06:30-11:45

2 stops23h 15m

Krong Preah Sihanouk Sihanoukville

Wed 8/4

13:30-09:35

2 stops26h 05m

£1,330

LondonKrong Preah Sihanouk

LHR - KOS

LHRKOS

London Heathrow

Sat 4/4

11:00-13:00

1 stop20h 00m

Krong Preah Sihanouk Sihanoukville

Sat 11/4

09:50-20:00

2 stops40h 10m

£1,412

LondonKrong Preah Sihanouk

LHR - KOS

LHRKOS

London Heathrow

Wed 1/4

11:00-11:45

1 stop18h 45m

Krong Preah Sihanouk Sihanoukville

Wed 8/4

13:30-16:35

1 stop33h 05m

£1,416

LondonKrong Preah Sihanouk

LHR - KOS

LHRKOS

London Heathrow

Wed 1/4

11:00-11:45

1 stop18h 45m

Krong Preah Sihanouk Sihanoukville

Wed 8/4

13:30-16:35

1 stop33h 05m

£1,434

LondonKrong Preah Sihanouk

LHR - KOS

LHRKOS

London Heathrow

Thu 2/4

09:30-13:00

2 stops21h 30m

Krong Preah Sihanouk Sihanoukville

Thu 9/4

12:15-07:00

2 stops24h 45m

£1,482

LondonKrong Preah Sihanouk

LHR - KOS

LHRKOS

London Heathrow

Wed 1/4

16:50-19:40

2 stops20h 50m

Krong Preah Sihanouk Sihanoukville

Wed 8/4

09:50-07:05

2 stops27h 15m

£1,494

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

Fastest flight time

38h 25m

Direct flights

None
The fastest flight from London Heathrow Airport to Krong Preah Sihanouk takes 38h 25m
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.
Search flight deals

  • 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 38h 25m, 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
Kampot

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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