What is the cheapest airline that flies from Siem Reap–Angkor Intl to United Kingdom?

China Eastern is the most popular carrier operating from Siem Reap–Angkor Intl to United Kingdom

When did momondo last update prices for flights from Siem Reap–Angkor Intl Airport to United Kingdom?

Prices for flights from Siem Reap–Angkor Intl Airport to United Kingdom are updated daily.

How old do you have to be to fly from Siem Reap–Angkor Intl Airport to United Kingdom?

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 Siem Reap–Angkor Intl Airport to United Kingdom.

What documentation or ID do you need to fly to United Kingdom?

The travel and health documents required for your trip to United Kingdom 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 United Kingdom. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

£243 Cheap Flights from Siem Reap to the United Kingdom in 2026

1 adult

0 bags

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Find the cheapest flights from Siem Reap to the United Kingdom

Round-trip

One-way

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Cheap return flights

Enter your travel dates to find the best prices.

19:05 - 15:00

SAI

LGW

25h 55m

2 stops

06:30 - 14:50

LGW

SAI

26h 20m

3 stops

£729Multiple Airlines

Tue, 12 May - Thu, 4 Jun

19:05 - 15:00

SAI

LGW

25h 55m

2 stops

10:15 - 14:50

LGW

SAI

22h 35m

2 stops

£791Multiple Airlines

Tue, 12 May - Thu, 4 Jun

10:30 - 06:55

SAI

LGW

26h 25m

1 stop

10:15 - 09:40

LGW

SAI

17h 25m

1 stop

£892Singapore Airlines

Tue, 12 May - Thu, 4 Jun

23:50 - 12:35

SAI

LGW

18h 45m

2 stops

10:15 - 15:10

LGW

SAI

22h 55m

1 stop

£987Multiple Airlines

Tue, 12 May - Thu, 4 Jun

09:50 - 19:35

SAI

LHR

16h 45m

1 stop

22:35 - 08:45

LHR

SAI

27h 10m

2 stops

£1,122Multiple Airlines

Thu, 19 Mar - Thu, 19 Mar

09:55 - 19:05

SAI

LHR

16h 10m

1 stop

21:20 - 18:45

LHR

SAI

14h 25m

1 stop

£1,188Multiple Airlines

Thu, 19 Mar - Thu, 19 Mar

momondo Fare Finder

Use the filters below to find and compare flights from Siem Reap to the United Kingdom that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Siem ReapLondon

SAI - LGW

SAILGW

Siem Reap–Angkor Intl

Tue 12/5

19:05-15:00

2 stops25h 55m

London Gatwick

Thu 4/6

06:30-14:50

3 stops26h 20m

£729

Siem ReapLondon

SAI - LGW

SAILGW

Siem Reap–Angkor Intl

Tue 12/5

19:05-15:00

2 stops25h 55m

London Gatwick

Thu 4/6

10:15-14:50

2 stops22h 35m

£791

Siem ReapLondon

SAI - LGW

SAILGW

Siem Reap–Angkor Intl

Tue 12/5

10:30-06:55

1 stop26h 25m

London Gatwick

Thu 4/6

10:15-09:40

1 stop17h 25m

£892

Siem ReapLondon

SAI - LGW

SAILGW

Siem Reap–Angkor Intl

Tue 12/5

23:50-12:35

2 stops18h 45m

London Gatwick

Thu 4/6

10:15-15:10

1 stop22h 55m

£987

Siem ReapLondon

SAI - LHR

SAILHR

Siem Reap–Angkor Intl

Thu 19/3

09:50-19:35

1 stop16h 45m

London Heathrow

Thu 19/3

22:35-08:45

2 stops27h 10m

£1,122

Siem ReapLondon

SAI - LHR

SAILHR

Siem Reap–Angkor Intl

Thu 19/3

09:55-19:05

1 stop16h 10m

London Heathrow

Thu 19/3

21:20-18:45

1 stop14h 25m

£1,188

Siem ReapLondon

SAI - LGW

SAILGW

Siem Reap–Angkor Intl

Wed 20/5

21:10-06:40

2 stops39h 30m

£243

Siem ReapLondon

SAI - LHR

SAILHR

Siem Reap–Angkor Intl

Tue 24/3

22:00-17:30

2 stops26h 30m

£243

Siem ReapLondon

SAI - LHR

SAILHR

Siem Reap–Angkor Intl

Wed 20/5

21:10-18:40

2 stops27h 30m

£248

Siem ReapLondon

SAI - LHR

SAILHR

Siem Reap–Angkor Intl

Tue 24/2

22:00-17:30

3 stops50h 30m

£252

Flights are sorted by cheapest return flights first.

Showing 1-10 of 16 resultsSorted by cheapest first

How to get the cheapest flight ticket from Siem Reap to United Kingdom

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

Prices

Airlines

Can stopping save me money on Siem Reap to United Kingdom flights?

You could potentially save up to 39% on your flight if you consider stops on a Siem Reap to United Kingdom flight.

Cheap Siem Reap to United Kingdom flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Siem Reap to United Kingdom

Fastest flight time	16h 45m
Direct flights	None

The fastest flight from Siem Reap to United Kingdom takes 16h 45m

There are no direct flights from Siem Reap to United Kingdom. There are no popular flight routes from Siem Reap to United Kingdom.

Search flight deals

When did momondo last update prices for flights from Siem Reap–Angkor Intl Airport to United Kingdom?
Prices for flights from Siem Reap–Angkor Intl Airport to United Kingdom are updated daily.
How old do you have to be to fly from Siem Reap–Angkor Intl Airport to United Kingdom?
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 Siem Reap–Angkor Intl Airport to United Kingdom.
What documentation or ID do you need to fly to United Kingdom?
The travel and health documents required for your trip to United Kingdom 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 United Kingdom. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

Why should I use momondo to find a flight deal from Siem Reap to United Kingdom?

Finding the right flight to United Kingdom from Siem Reap is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to United Kingdom quick and easy, saving you time and money.

Can I find flights from Siem Reap to United Kingdom with flexible booking policies on momondo?

momondo does allow users to show only those flights to United Kingdom from Siem Reap which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Siem Reap to United Kingdom?

momondo provides multiple filters to help you find the best flight to United Kingdom from Siem Reap. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Siem Reap to United Kingdom right now. Can momondo alert me if prices change?

Price alerts on flights to United Kingdom from Siem Reap are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.