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

Emirates is the most popular carrier operating from Siem Reap to United Kingdom

When did momondo last update prices for flights from Siem Reap to United Kingdom?

Prices for flights from Siem Reap to United Kingdom were last updated today.

How old do you have to be to fly from Siem Reap to United Kingdom?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Siem Reap to United Kingdom.

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

The necessary travel and health documents for your United Kingdom trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

£247 Cheap Flights from Siem Reap to the United Kingdom in 2026

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.

23:50 - 18:40SAI Siem Reap–Angkor Intl-LHR London Heathrow

24h 50m2 stops Bangkok Suvarnabhumi Dubai Intl

16:50 - 12:15LHR London Heathrow-SAI Siem Reap–Angkor Intl

37h 25m2 stops Dubai Intl Bangkok Suvarnabhumi

£693Emirates

Thu, 24 Sep - Sat, 3 Oct

12:55 - 18:40SAI Siem Reap–Angkor Intl-LHR London Heathrow

35h 45m2 stops Bangkok Suvarnabhumi Dubai Intl

16:50 - 12:15LHR London Heathrow-SAI Siem Reap–Angkor Intl

37h 25m2 stops Dubai Intl Bangkok Suvarnabhumi

£715Emirates

Fri, 25 Sep - Sat, 3 Oct

09:35 - 06:30SAI Siem Reap–Angkor Intl-LHR London Heathrow

26h 55m3 stops Ho Chi Minh City Singapore Changi Muscat Seeb

20:50 - 14:50LHR London Heathrow-SAI Siem Reap–Angkor Intl

36h 00m3 stops Muscat Seeb Singapore Changi Kuala Lumpur Intl

£745Multiple Airlines

Thu, 24 Sep - Sat, 3 Oct

23:50 - 19:45SAI Siem Reap–Angkor Intl-LGW London Gatwick

25h 55m2 stops Bangkok Suvarnabhumi Dubai Intl

09:05 - 12:15LGW London Gatwick-SAI Siem Reap–Angkor Intl

21h 10m2 stops Dubai Intl Bangkok Suvarnabhumi

£755Emirates

Thu, 24 Sep - Sat, 3 Oct

09:40 - 15:20SAI Siem Reap–Angkor Intl-LHR London Heathrow

35h 40m2 stops Bangkok Suvarnabhumi Manama Bahrain Intl

20:10 - 06:20LHR London Heathrow-SAI Siem Reap–Angkor Intl

28h 10m3 stops Mumbai Chhatrapati Shivaji Intl Hyderabad Rajiv Gandhi Intl Kolkata Netaji S. Chandra

£768Multiple Airlines

Fri, 25 Sep - Sat, 3 Oct

09:35 - 06:30SAI Siem Reap–Angkor Intl-LHR London Heathrow

26h 55m3 stops Ho Chi Minh City Singapore Changi Muscat Seeb

20:50 - 09:15LHR London Heathrow-SAI Siem Reap–Angkor Intl

30h 25m3 stops Muscat Seeb Singapore Changi Kuala Lumpur Intl

£775Multiple Airlines

Fri, 25 Sep - Sat, 3 Oct

12:55 - 15:20SAI Siem Reap–Angkor Intl-LHR London Heathrow

32h 25m2 stops Bangkok Suvarnabhumi Manama Bahrain Intl

20:50 - 06:20LHR London Heathrow-SAI Siem Reap–Angkor Intl

27h 30m3 stops Muscat Seeb New Delhi Indira Gandhi Intl Kolkata Netaji S. Chandra

£778Multiple Airlines

Thu, 24 Sep - Sat, 3 Oct

16:55 - 12:35SAI Siem Reap–Angkor Intl-LGW London Gatwick

25h 40m3 stops Bangkok Don Mueang Intl Chennai Dubai Intl

09:45 - 14:50LGW London Gatwick-SAI Siem Reap–Angkor Intl

23h 05m2 stops Sharjah Kuala Lumpur Intl

£855Multiple Airlines

Fri, 25 Sep - Sat, 3 Oct

09:40 - 08:45SAI Siem Reap–Angkor Intl-LGW London Gatwick

29h 05m2 stops Bangkok Suvarnabhumi Sharjah

09:45 - 14:50LGW London Gatwick-SAI Siem Reap–Angkor Intl

23h 05m2 stops Sharjah Kuala Lumpur Intl

£866Multiple Airlines

Fri, 25 Sep - Sat, 3 Oct

09:40 - 15:20SAI Siem Reap–Angkor Intl-LHR London Heathrow

35h 40m2 stops Bangkok Suvarnabhumi Manama Bahrain Intl

12:30 - 12:15LHR London Heathrow-SAI Siem Reap–Angkor Intl

17h 45m1 stop Bangkok Suvarnabhumi

£917Multiple Airlines

Thu, 24 Sep - Sat, 3 Oct

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Emirates flights from Region of Siem Reap to United Kingdom

Our best Emirates deals on Region of Siem Reap to United Kingdom flight tickets

Emirates

16 Sept

SAI12:55Siem Reap–Angkor Intl

29h 40m

2 stops

LGW12:35London Gatwick

23 Sept

LGW14:35London Gatwick

24h 55m

1 stop

SAI21:30Siem Reap–Angkor Intl

£692

Emirates

24 Sept

SAI23:50Siem Reap–Angkor Intl

24h 50m

2 stops

LHR18:40London Heathrow

3 Oct

LHR16:50London Heathrow

37h 25m

2 stops

SAI12:15Siem Reap–Angkor Intl

£693

Emirates

25 Sept

SAI12:55Siem Reap–Angkor Intl

35h 45m

2 stops

LHR18:40London Heathrow

3 Oct

LHR16:50London Heathrow

37h 25m

2 stops

SAI12:15Siem Reap–Angkor Intl

£715

Singapore Airlines flights from Region of Siem Reap to United Kingdom

Our best Singapore Airlines deals on Region of Siem Reap to United Kingdom flight tickets

Singapore Airlines

24 Sept

SAI10:30Siem Reap–Angkor Intl

26h 25m

1 stop

LGW06:55London Gatwick

3 Oct

LGW13:00London Gatwick

38h 40m

1 stop

SAI09:40Siem Reap–Angkor Intl

£1,511

Singapore Airlines

16 Sept

SAI16:00Siem Reap–Angkor Intl

20h 55m

1 stop

LGW06:55London Gatwick

23 Sept

LGW10:00London Gatwick

17h 40m

1 stop

SAI09:40Siem Reap–Angkor Intl

£1,637

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

Cheapest return flight

Siem ReapLondon

SAI Siem Reap–Angkor Intl - LHR London Heathrow

SAILHR

Siem Reap–Angkor Intl

Thu 24/9

23:50-18:40

2 stops24h 50m

London Heathrow

Sat 3/10

16:50-12:15

2 stops37h 25m

£693

Siem ReapLondon

SAI Siem Reap–Angkor Intl - LHR London Heathrow

SAILHR

Siem Reap–Angkor Intl

Fri 25/9

12:55-18:40

2 stops35h 45m

London Heathrow

Sat 3/10

16:50-12:15

2 stops37h 25m

£715

Siem ReapLondon

SAI Siem Reap–Angkor Intl - LHR London Heathrow

SAILHR

Siem Reap–Angkor Intl

Thu 24/9

09:35-06:30

3 stops26h 55m

London Heathrow

Sat 3/10

20:50-14:50

3 stops36h 00m

£745

Fastest return journey

Siem ReapLondon

SAI Siem Reap–Angkor Intl - LGW London Gatwick

SAILGW

Siem Reap–Angkor Intl

Thu 24/9

23:50-19:45

2 stops25h 55m

London Gatwick

Sat 3/10

09:05-12:15

2 stops21h 10m

£755

Siem ReapLondon

SAI Siem Reap–Angkor Intl - LHR London Heathrow

SAILHR

Siem Reap–Angkor Intl

Fri 25/9

09:40-15:20

2 stops35h 40m

London Heathrow

Sat 3/10

20:10-06:20

3 stops28h 10m

£768

Siem ReapLondon

SAI Siem Reap–Angkor Intl - LHR London Heathrow

SAILHR

Siem Reap–Angkor Intl

Fri 25/9

09:35-06:30

3 stops26h 55m

London Heathrow

Sat 3/10

20:50-09:15

3 stops30h 25m

£775

Siem ReapLondon

SAI Siem Reap–Angkor Intl - LHR London Heathrow

SAILHR

Siem Reap–Angkor Intl

Thu 24/9

12:55-15:20

2 stops32h 25m

London Heathrow

Sat 3/10

20:50-06:20

3 stops27h 30m

£778

Siem ReapLondon

SAI Siem Reap–Angkor Intl - LGW London Gatwick

SAILGW

Siem Reap–Angkor Intl

Fri 25/9

16:55-12:35

3 stops25h 40m

London Gatwick

Sat 3/10

09:45-14:50

2 stops23h 05m

£855

Siem ReapLondon

SAI Siem Reap–Angkor Intl - LGW London Gatwick

SAILGW

Siem Reap–Angkor Intl

Fri 25/9

09:40-08:45

2 stops29h 05m

London Gatwick

Sat 3/10

09:45-14:50

2 stops23h 05m

£866

Siem ReapLondon

SAI Siem Reap–Angkor Intl - LHR London Heathrow

SAILHR

Siem Reap–Angkor Intl

Thu 24/9

09:40-15:20

2 stops35h 40m

London Heathrow

Sat 3/10

12:30-12:15

1 stop17h 45m

£917

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 Region of 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 Region of Siem Reap to United Kingdom flights?

You could potentially save up to 29% on your flight if you consider stops on a Region of Siem Reap to United Kingdom flight.

Cheap Region of Siem Reap to United Kingdom flight deals and tips

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

Best price found	£247
Fastest flight time	29h 35m
Direct flights	None

The best one-way flight to United Kingdom from Region of Siem Reap in the past 72 hours is £247. The best return flight deal from Region of Siem Reap to United Kingdom found on momondo in the last 72 hours is £693.

The fastest flight from Region of Siem Reap to United Kingdom takes 29h 35m

There are no direct flights from Region of Siem Reap to United Kingdom. There are no popular flight routes from Region of 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 to United Kingdom?
Prices for flights from Siem Reap to United Kingdom were last updated today.
How old do you have to be to fly from Siem Reap to United Kingdom?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Siem Reap to United Kingdom.
What documentation or ID do you need to fly to United Kingdom?
The necessary travel and health documents for your United Kingdom trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

It is quick and easy to find Siem Reap to United Kingdom flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to United Kingdom that suits you.

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?

If you are simply researching potential flights to United Kingdom, momondo offers a useful price alert feature which will track prices for flights to United Kingdom from Siem Reap and alert you when they change.