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

Emirates is the most popular carrier operating from Siem Reap to London

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

Prices for flights from Siem Reap to London are updated daily.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Siem Reap to London.

What documentation or ID do you need to fly to London?

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

£229 Cheap Flights from Siem Reap to London in 2026/27

Find the cheapest flights from Siem Reap to London

Return

One-way

Cheap return flights

Enter your travel dates to find the best prices.

21:10 - 15:00SAI Siem Reap–Angkor Intl-LGW London Gatwick

47h 50m2 stops Kunming Changshui Shanghai Hongqiao Intl

11:35 - 20:10LGW London Gatwick-SAI Siem Reap–Angkor Intl

26h 35m2 stops Shanghai Pu Dong Kunming Changshui

£651China Eastern

Wed, 5 May - Tue, 18 May

21:10 - 15:00SAI Siem Reap–Angkor Intl-LGW London Gatwick

47h 50m2 stops Kunming Changshui Shanghai Pu Dong

18:00 - 20:10LGW London Gatwick-SAI Siem Reap–Angkor Intl

44h 10m2 stops Shanghai Pu Dong Kunming Changshui

£651China Eastern

Wed, 5 May - Wed, 19 May

23:50 - 12:55SAI Siem Reap–Angkor Intl-STN London Stansted

19h 05m2 stops Bangkok Suvarnabhumi Dubai Intl

14:55 - 21:30STN London Stansted-SAI Siem Reap–Angkor Intl

24h 35m2 stops Dubai Intl Bangkok Suvarnabhumi

£652Emirates

Tue, 4 May - Wed, 19 May

16:50 - 15:55SAI Siem Reap–Angkor Intl-LGW London Gatwick

30h 05m1 stop Bangkok Suvarnabhumi

11:35 - 09:15LGW London Gatwick-SAI Siem Reap–Angkor Intl

38h 40m2 stops Beijing Capital Kuala Lumpur Intl

£669Multiple Airlines

Sat, 26 Dec - Sun, 17 Jan

23:50 - 18:45SAI Siem Reap–Angkor Intl-STN London Stansted

24h 55m2 stops Bangkok Suvarnabhumi Dubai Intl

14:55 - 21:30STN London Stansted-SAI Siem Reap–Angkor Intl

24h 35m2 stops Dubai Intl Bangkok Suvarnabhumi

£672Emirates

Sat, 1 May - Wed, 19 May

23:50 - 12:55SAI Siem Reap–Angkor Intl-STN London Stansted

19h 05m2 stops Bangkok Suvarnabhumi Dubai Intl

21:05 - 21:30STN London Stansted-SAI Siem Reap–Angkor Intl

18h 25m2 stops Dubai Intl Bangkok Suvarnabhumi

£672Emirates

Tue, 4 May - Fri, 21 May

23:50 - 18:45SAI Siem Reap–Angkor Intl-STN London Stansted

24h 55m2 stops Bangkok Suvarnabhumi Dubai Intl

21:05 - 21:30STN London Stansted-SAI Siem Reap–Angkor Intl

18h 25m2 stops Dubai Intl Bangkok Suvarnabhumi

£672Emirates

Tue, 4 May - Mon, 17 May

23:50 - 18:45SAI Siem Reap–Angkor Intl-STN London Stansted

24h 55m2 stops Bangkok Suvarnabhumi Dubai Intl

14:55 - 21:30STN London Stansted-SAI Siem Reap–Angkor Intl

24h 35m2 stops Dubai Intl Bangkok Suvarnabhumi

£672Emirates

Sat, 1 May - Mon, 17 May

23:50 - 12:55SAI Siem Reap–Angkor Intl-STN London Stansted

19h 05m2 stops Bangkok Suvarnabhumi Dubai Intl

21:05 - 21:30STN London Stansted-SAI Siem Reap–Angkor Intl

18h 25m2 stops Dubai Intl Bangkok Suvarnabhumi

£672Emirates

Sat, 1 May - Fri, 21 May

23:50 - 12:55SAI Siem Reap–Angkor Intl-STN London Stansted

19h 05m2 stops Bangkok Suvarnabhumi Dubai Intl

21:05 - 21:30STN London Stansted-SAI Siem Reap–Angkor Intl

18h 25m2 stops Dubai Intl Bangkok Suvarnabhumi

£672Emirates

Thu, 6 May - Mon, 17 May

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China Eastern flights from Region of Siem Reap to London

Our best China Eastern deals on Region of Siem Reap to London flight tickets

China Eastern

5 May

SAI21:10Siem Reap–Angkor Intl

47h 50m

2 stops

LGW15:00London Gatwick

18 May

LGW11:35London Gatwick

26h 35m

2 stops

SAI20:10Siem Reap–Angkor Intl

£651

China Eastern

28 Jan

SAI21:05Siem Reap–Angkor Intl

27h 25m

2 stops

LHR17:30London Heathrow

28 Feb

LHR21:00London Heathrow

40h 05m

2 stops

SAI20:05Siem Reap–Angkor Intl

£683

China Eastern

5 May

SAI21:10Siem Reap–Angkor Intl

47h 50m

2 stops

LGW15:00London Gatwick

20 May

LGW11:35London Gatwick

26h 35m

2 stops

SAI20:10Siem Reap–Angkor Intl

£689

Etihad Airways flights from Region of Siem Reap to London

Our best Etihad Airways deals on Region of Siem Reap to London flight tickets

Etihad Airways

30 Nov

SAI19:25Siem Reap–Angkor Intl

26h 05m

2 stops

LHR14:30London Heathrow

30 Dec

LHR20:55London Heathrow

32h 45m

2 stops

SAI12:40Siem Reap–Angkor Intl

£867

Etihad Airways

4 May

SAI15:10Siem Reap–Angkor Intl

21h 50m

2 stops

LHR07:00London Heathrow

20 May

LHR09:30London Heathrow

19h 45m

2 stops

SAI11:15Siem Reap–Angkor Intl

£873

Etihad Airways

30 Nov

SAI17:55Siem Reap–Angkor Intl

31h 15m

2 stops

LHR18:10London Heathrow

30 Dec

LHR13:55London Heathrow

36h 20m

2 stops

SAI09:15Siem Reap–Angkor Intl

£878

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Siem ReapLondon

SAI Siem Reap–Angkor Intl - LGW London Gatwick

SAILGW

Siem Reap–Angkor Intl

Wed 5/5

21:10-15:00

2 stops47h 50m

London Gatwick

Tue 18/5

11:35-20:10

2 stops26h 35m

£651

Siem ReapLondon

SAI Siem Reap–Angkor Intl - LGW London Gatwick

SAILGW

Siem Reap–Angkor Intl

Wed 5/5

21:10-15:00

2 stops47h 50m

London Gatwick

Wed 19/5

18:00-20:10

2 stops44h 10m

£651

Siem ReapLondon

SAI Siem Reap–Angkor Intl - STN London Stansted

SAISTN

Siem Reap–Angkor Intl

Tue 4/5

23:50-12:55

2 stops19h 05m

London Stansted

Wed 19/5

14:55-21:30

2 stops24h 35m

£652

Siem ReapLondon

SAI Siem Reap–Angkor Intl - LGW London Gatwick

SAILGW

Siem Reap–Angkor Intl

Sat 26/12

16:50-15:55

1 stop30h 05m

London Gatwick

Sun 17/1

11:35-09:15

2 stops38h 40m

£669

Siem ReapLondon

SAI Siem Reap–Angkor Intl - STN London Stansted

SAISTN

Siem Reap–Angkor Intl

Sat 1/5

23:50-18:45

2 stops24h 55m

London Stansted

Wed 19/5

14:55-21:30

2 stops24h 35m

£672

Fastest return journey

Siem ReapLondon

SAI Siem Reap–Angkor Intl - STN London Stansted

SAISTN

Siem Reap–Angkor Intl

Tue 4/5

23:50-12:55

2 stops19h 05m

London Stansted

Fri 21/5

21:05-21:30

2 stops18h 25m

£672

Siem ReapLondon

SAI Siem Reap–Angkor Intl - STN London Stansted

SAISTN

Siem Reap–Angkor Intl

Tue 4/5

23:50-18:45

2 stops24h 55m

London Stansted

Mon 17/5

21:05-21:30

2 stops18h 25m

£672

Siem ReapLondon

SAI Siem Reap–Angkor Intl - STN London Stansted

SAISTN

Siem Reap–Angkor Intl

Sat 1/5

23:50-18:45

2 stops24h 55m

London Stansted

Mon 17/5

14:55-21:30

2 stops24h 35m

£672

Siem ReapLondon

SAI Siem Reap–Angkor Intl - STN London Stansted

SAISTN

Siem Reap–Angkor Intl

Sat 1/5

23:50-12:55

2 stops19h 05m

London Stansted

Fri 21/5

21:05-21:30

2 stops18h 25m

£672

Siem ReapLondon

SAI Siem Reap–Angkor Intl - STN London Stansted

SAISTN

Siem Reap–Angkor Intl

Thu 6/5

23:50-12:55

2 stops19h 05m

London Stansted

Mon 17/5

21:05-21:30

2 stops18h 25m

£672

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 London

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

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Airlines

Can stopping save me money on Region of Siem Reap to London flights?

You could potentially save up to 3% on your flight if you consider stops on a Region of Siem Reap to London flight.

Cheap Region of Siem Reap to London flight deals and tips

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

Best price found	£229
Fastest flight time	18h 45m
Direct flights	None

The best one-way flight to London from Region of Siem Reap in the past 72 hours is £229. The best return flight deal from Region of Siem Reap to London found on momondo in the last 72 hours is £651.

The fastest flight from Region of Siem Reap to London takes 18h 45m

There are no direct flights from Region of Siem Reap to London. There are no popular flight routes from Region of Siem Reap to London.

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Frequently asked questions about flying from Siem Reap to London

When did momondo last update prices for flights from Siem Reap to London?
Prices for flights from Siem Reap to London are updated daily.
How old do you have to be to fly from Siem Reap to London?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Siem Reap to London.
What documentation or ID do you need to fly to London?
The required travel and health documents for your London 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 London. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to London from Siem Reap.

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Cheap flights from Siem Reap to London from £229

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Siem Reap to London departing on 26/12. 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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China Eastern flights from Region of Siem Reap to London

Our best China Eastern deals on Region of Siem Reap to London flight tickets

Etihad Airways flights from Region of Siem Reap to London

Our best Etihad Airways deals on Region of Siem Reap to London flight tickets

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How to get the cheapest flight ticket from Region of Siem Reap to London

Can stopping save me money on Region of Siem Reap to London flights?

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

Cheap Region of Siem Reap to London flight deals and tips

Best price found

Fastest flight time

Direct flights

Frequently asked questions about flying from Siem Reap to London

Travelling to a place near London?

Why use momondo?

An easier way to manage your London trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London

Cabin classes currently available on flights to London

List of cabin classes available on flights landing in London. Availability may vary depending on flight origin and airline.

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