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

China Eastern and Emirates are the most popular carriers 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.

£269 Cheap Flights from Siem Reap to the United Kingdom in 2026/27

Find the cheapest flights from Siem Reap to the United Kingdom

Return

One-way

Cheap return flights

Enter your travel dates to find the best prices.

13:20 - 13:50SAI Siem Reap–Angkor Intl-LHR London Heathrow

31h 30m2 stops Bangkok Suvarnabhumi Dubai Intl

19:00 - 21:10LHR London Heathrow-SAI Siem Reap–Angkor Intl

19h 10m2 stops Dubai Intl Bangkok Suvarnabhumi

£712Emirates

Wed, 9 Dec - Fri, 22 Jan

20:30 - 07:15SAI Siem Reap–Angkor Intl-LHR London Heathrow

17h 45m1 stop Hanoi Noibai

21:10 - 15:35LHR London Heathrow-SAI Siem Reap–Angkor Intl

35h 25m2 stops Shenzhen Phnom Penh Techo Intl

£736Multiple Airlines

Sat, 31 Oct - Sun, 8 Nov

23:50 - 18:25SAI Siem Reap–Angkor Intl-LGW London Gatwick

25h 35m2 stops Bangkok Suvarnabhumi Dubai Intl

23:55 - 21:10LGW London Gatwick-SAI Siem Reap–Angkor Intl

38h 15m2 stops Dubai Intl Bangkok Suvarnabhumi

£755Emirates

Sat, 31 Oct - Sun, 8 Nov

13:20 - 14:45SAI Siem Reap–Angkor Intl-LHR London Heathrow

32h 25m2 stops Bangkok Suvarnabhumi Manama Bahrain Intl

19:25 - 18:45LHR London Heathrow-SAI Siem Reap–Angkor Intl

16h 20m2 stops Vienna Intl Bangkok Suvarnabhumi

£757Multiple Airlines

Thu, 10 Dec - Fri, 22 Jan

23:50 - 06:40SAI Siem Reap–Angkor Intl-LGW London Gatwick

37h 50m2 stops Bangkok Suvarnabhumi Dubai Intl

06:25 - 16:05LGW London Gatwick-SAI Siem Reap–Angkor Intl

26h 40m3 stops Athens Eleftherios V. Sharjah Phuket City

£768Multiple Airlines

Sat, 31 Oct - Sun, 8 Nov

20:30 - 07:15SAI Siem Reap–Angkor Intl-LHR London Heathrow

17h 45m1 stop Hanoi Noibai

21:00 - 16:05LHR London Heathrow-SAI Siem Reap–Angkor Intl

36h 05m2 stops Shanghai Pu Dong Phuket City

£776Multiple Airlines

Thu, 10 Dec - Fri, 22 Jan

19:25 - 20:40SAI Siem Reap–Angkor Intl-LHR London Heathrow

32h 15m2 stops Bangkok Suvarnabhumi Helsinki-Vantaa

10:20 - 12:40LHR London Heathrow-SAI Siem Reap–Angkor Intl

19h 20m2 stops Helsinki-Vantaa Bangkok Suvarnabhumi

£789Finnair

Sat, 31 Oct - Sun, 8 Nov

21:30 - 07:15SAI Siem Reap–Angkor Intl-LHR London Heathrow

16h 45m1 stop Ho Chi Minh City

21:00 - 11:00LHR London Heathrow-SAI Siem Reap–Angkor Intl

31h 00m2 stops Shanghai Pu Dong Bangkok Suvarnabhumi

£811Multiple Airlines

Wed, 9 Dec - Fri, 22 Jan

18:40 - 07:15SAI Siem Reap–Angkor Intl-LHR London Heathrow

19h 35m1 stop Ho Chi Minh City

11:00 - 19:40LHR London Heathrow-SAI Siem Reap–Angkor Intl

25h 40m1 stop Hanoi Noibai

£867Vietnam Airlines

Wed, 9 Dec - Fri, 22 Jan

20:30 - 07:15SAI Siem Reap–Angkor Intl-LHR London Heathrow

17h 45m1 stop Hanoi Noibai

11:50 - 09:15LHR London Heathrow-SAI Siem Reap–Angkor Intl

14h 25m1 stop Bangkok Suvarnabhumi

£902Multiple Airlines

Thu, 10 Dec - Fri, 22 Jan

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

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Fly to

Route

Depart

Return

Price

Cheapest return flight

Siem ReapLondon

SAI Siem Reap–Angkor Intl - LHR London Heathrow

SAILHR

Siem Reap–Angkor Intl

Wed 9/12

13:20-13:50

2 stops31h 30m

London Heathrow

Fri 22/1

19:00-21:10

2 stops19h 10m

£712

Siem ReapLondon

SAI Siem Reap–Angkor Intl - LHR London Heathrow

SAILHR

Siem Reap–Angkor Intl

Sat 31/10

20:30-07:15

1 stop17h 45m

London Heathrow

Sun 8/11

21:10-15:35

2 stops35h 25m

£736

Siem ReapLondon

SAI Siem Reap–Angkor Intl - LGW London Gatwick

SAILGW

Siem Reap–Angkor Intl

Sat 31/10

23:50-18:25

2 stops25h 35m

London Gatwick

Sun 8/11

23:55-21:10

2 stops38h 15m

£755

Siem ReapLondon

SAI Siem Reap–Angkor Intl - LHR London Heathrow

SAILHR

Siem Reap–Angkor Intl

Thu 10/12

13:20-14:45

2 stops32h 25m

London Heathrow

Fri 22/1

19:25-18:45

2 stops16h 20m

£757

Siem ReapLondon

SAI Siem Reap–Angkor Intl - LGW London Gatwick

SAILGW

Siem Reap–Angkor Intl

Sat 31/10

23:50-06:40

2 stops37h 50m

London Gatwick

Sun 8/11

06:25-16:05

3 stops26h 40m

£768

Siem ReapLondon

SAI Siem Reap–Angkor Intl - LHR London Heathrow

SAILHR

Siem Reap–Angkor Intl

Thu 10/12

20:30-07:15

1 stop17h 45m

London Heathrow

Fri 22/1

21:00-16:05

2 stops36h 05m

£776

Siem ReapLondon

SAI Siem Reap–Angkor Intl - LHR London Heathrow

SAILHR

Siem Reap–Angkor Intl

Sat 31/10

19:25-20:40

2 stops32h 15m

London Heathrow

Sun 8/11

10:20-12:40

2 stops19h 20m

£789

Siem ReapLondon

SAI Siem Reap–Angkor Intl - LHR London Heathrow

SAILHR

Siem Reap–Angkor Intl

Wed 9/12

21:30-07:15

1 stop16h 45m

London Heathrow

Fri 22/1

21:00-11:00

2 stops31h 00m

£811

Siem ReapLondon

SAI Siem Reap–Angkor Intl - LHR London Heathrow

SAILHR

Siem Reap–Angkor Intl

Wed 9/12

18:40-07:15

1 stop19h 35m

London Heathrow

Fri 22/1

11:00-19:40

1 stop25h 40m

£867

Fastest return journey

Siem ReapLondon

SAI Siem Reap–Angkor Intl - LHR London Heathrow

SAILHR

Siem Reap–Angkor Intl

Thu 10/12

20:30-07:15

1 stop17h 45m

London Heathrow

Fri 22/1

11:50-09:15

1 stop14h 25m

£902

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 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 29% 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

Best price found	£269
Fastest flight time	17h 45m
Direct flights	None

The best one-way flight to United Kingdom from Siem Reap in the past 72 hours is £269. The best return flight deal from Siem Reap to United Kingdom found on momondo in the last 72 hours is £712.

The fastest flight from Siem Reap to United Kingdom takes 17h 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

Frequently asked questions about flying from Siem Reap to the 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.

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.