How long does it take to fly to Siem Reap?

If you’re flying from a popular airport in England, such as London or Birmingham, and flying into Siem Reap, then you can expect flight times to average 16h 45m and 18h, respectively.

Which airlines fly to Siem Reap?

Singapore Airlines, Vietnam Airlines and Thai Airways are the top three most popular airlines that fly to Siem Reap from England according to our data. Singapore Airlines is the first choice among our users, with 57% of people opting to fly with this airline when travelling to Siem Reap. Keep in mind that there are 5 different airlines that fly to Siem Reap on a routine basis, so you have a few additional options to choose from.

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

SWISS and Singapore Airlines are the most popular carriers operating from England to Siem Reap–Angkor Intl

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

Prices for flights from England to Siem Reap–Angkor Intl Airport were last updated today.

How many operators does momondo search for flights from England to Siem Reap–Angkor Intl Airport?

The number of operators available for flights from England to Siem Reap–Angkor Intl Airport is 5 as of September 2026.

How old do you have to be to fly from England to Siem Reap–Angkor Intl 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 England to Siem Reap–Angkor Intl Airport.

What documentation or ID do you need to fly to Siem Reap–Angkor Intl Airport?

The necessary travel and health documents for your Siem Reap–Angkor Intl Airport 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.

£304 Cheap Flights from England to Siem Reap in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from England to Siem Reap

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

11:00 - 17:10LGW London Gatwick-SAI Siem Reap–Angkor Intl

24h 10m2 stops Guangzhou Baiyun Hanoi Noibai

18:05 - 06:30SAI Siem Reap–Angkor Intl-LGW London Gatwick

42h 25m2 stops Hanoi Noibai Guangzhou Baiyun

£540Multiple Airlines

Wed, 16 Sep - Wed, 14 Oct

11:35 - 17:10LGW London Gatwick-SAI Siem Reap–Angkor Intl

23h 35m2 stops Shanghai Pu Dong Hanoi Noibai

21:10 - 06:40SAI Siem Reap–Angkor Intl-LGW London Gatwick

39h 30m3 stops Kunming Changshui Zhaotong Shanghai Pu Dong

£588Multiple Airlines

Wed, 16 Sep - Wed, 14 Oct

06:00 - 18:45LHR London Heathrow-SAI Siem Reap–Angkor Intl

29h 45m2 stops Vienna Intl Bangkok Suvarnabhumi

09:55 - 08:20SAI Siem Reap–Angkor Intl-LHR London Heathrow

29h 25m2 stops Bangkok Suvarnabhumi Vienna Intl

£601Austrian Airlines

Thu, 28 Jan - Sun, 31 Jan

09:05 - 18:45LHR London Heathrow-SAI Siem Reap–Angkor Intl

26h 40m2 stops Vienna Intl Bangkok Suvarnabhumi

09:55 - 21:40SAI Siem Reap–Angkor Intl-LHR London Heathrow

18h 45m2 stops Bangkok Suvarnabhumi Vienna Intl

£601Austrian Airlines

Wed, 3 Feb - Sun, 7 Feb

19:50 - 18:20LHR London Heathrow-SAI Siem Reap–Angkor Intl

16h 30m1 stop Ho Chi Minh City

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

16h 45m1 stop Ho Chi Minh City

£627Vietnam Airlines

Tue, 29 Sep - Mon, 25 Jan

18:55 - 17:10LHR London Heathrow-SAI Siem Reap–Angkor Intl

16h 15m1 stop Hanoi Noibai

17:55 - 07:15SAI Siem Reap–Angkor Intl-LHR London Heathrow

20h 20m1 stop Hanoi Noibai

£627Vietnam Airlines

Wed, 30 Sep - Tue, 26 Jan

09:20 - 09:00MAN Manchester-SAI Siem Reap–Angkor Intl

41h 40m2 stops Abu Dhabi Zayed Intl Bangkok Suvarnabhumi

09:55 - 12:15SAI Siem Reap–Angkor Intl-MAN Manchester

33h 20m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl

£747Etihad Airways

Mon, 12 Oct - Mon, 9 Nov

09:10 - 09:55LHR London Heathrow-SAI Siem Reap–Angkor Intl

17h 45m1 stop Singapore Changi

10:45 - 19:10SAI Siem Reap–Angkor Intl-LHR London Heathrow

39h 25m1 stop Singapore Changi

£757Singapore Airlines

Thu, 14 Jan - Sat, 23 Jan

21:45 - 16:00LHR London Heathrow-SAI Siem Reap–Angkor Intl

35h 15m1 stop Singapore Changi

10:45 - 05:55SAI Siem Reap–Angkor Intl-LHR London Heathrow

26h 10m1 stop Singapore Changi

£757Singapore Airlines

Wed, 27 Jan - Wed, 10 Feb

08:15 - 14:25MAN Manchester-SAI Siem Reap–Angkor Intl

47h 10m2 stops Abu Dhabi Zayed Intl Phnom Penh Techo Intl

09:55 - 12:15SAI Siem Reap–Angkor Intl-MAN Manchester

33h 20m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl

£773Etihad Airways

Wed, 4 Nov - Wed, 11 Nov

Cheap last-minute flights

Enter your travel dates to find the best prices.

22:00 - 20:10LGW London Gatwick-SAI Siem Reap–Angkor Intl

40h 10m2 stops Shanghai Pu Dong Kunming Changshui

21:10 - 06:40SAI Siem Reap–Angkor Intl-LGW London Gatwick

39h 30m2 stops Kunming Changshui Shanghai Pu Dong

£589China Eastern

Wed, 9 Sep - Wed, 7 Oct

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

26h 35m3 stops Shanghai Pu Dong Fuzhou Kunming Changshui

21:10 - 06:40SAI Siem Reap–Angkor Intl-LGW London Gatwick

39h 30m2 stops Kunming Changshui Shanghai Pu Dong

£591China Eastern

Tue, 8 Sep - Wed, 7 Oct

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

26h 35m2 stops Shanghai Pu Dong Kunming Changshui

21:10 - 06:40SAI Siem Reap–Angkor Intl-LGW London Gatwick

39h 30m2 stops Kunming Changshui Shanghai Pu Dong

£591China Eastern

Thu, 10 Sep - Wed, 7 Oct

18:55 - 17:10LHR London Heathrow-SAI Siem Reap–Angkor Intl

16h 15m1 stop Hanoi Noibai

22:35 - 16:55SAI Siem Reap–Angkor Intl-LHR London Heathrow

24h 20m1 stop Ho Chi Minh City

£717Vietnam Airlines

Wed, 9 Sep - Wed, 7 Oct

18:55 - 17:10LHR London Heathrow-SAI Siem Reap–Angkor Intl

16h 15m1 stop Hanoi Noibai

22:35 - 16:55SAI Siem Reap–Angkor Intl-LHR London Heathrow

24h 20m1 stop Ho Chi Minh City

£719Vietnam Airlines

Wed, 9 Sep - Wed, 7 Oct

19:50 - 21:55LHR London Heathrow-SAI Siem Reap–Angkor Intl

20h 05m1 stop Ho Chi Minh City

22:35 - 16:55SAI Siem Reap–Angkor Intl-LHR London Heathrow

24h 20m1 stop Ho Chi Minh City

£734Vietnam Airlines

Tue, 8 Sep - Wed, 7 Oct

19:30 - 18:45LHR London Heathrow-SAI Siem Reap–Angkor Intl

17h 15m2 stops Vienna Intl Bangkok Suvarnabhumi

19:35 - 08:20SAI Siem Reap–Angkor Intl-LHR London Heathrow

18h 45m2 stops Bangkok Suvarnabhumi Vienna Intl

£752Austrian Airlines

Wed, 9 Sep - Tue, 6 Oct

19:30 - 18:45LHR London Heathrow-SAI Siem Reap–Angkor Intl

17h 15m2 stops Vienna Intl Bangkok Suvarnabhumi

19:35 - 08:20SAI Siem Reap–Angkor Intl-LHR London Heathrow

18h 45m2 stops Bangkok Suvarnabhumi Vienna Intl

£752Austrian Airlines

Tue, 8 Sep - Tue, 6 Oct

10:00 - 09:40LGW London Gatwick-SAI Siem Reap–Angkor Intl

17h 40m1 stop Singapore Changi

16:00 - 06:55SAI Siem Reap–Angkor Intl-LGW London Gatwick

20h 55m1 stop Singapore Changi

£1,024Singapore Airlines

Wed, 9 Sep - Wed, 7 Oct

10:00 - 09:40LGW London Gatwick-SAI Siem Reap–Angkor Intl

17h 40m1 stop Singapore Changi

10:30 - 06:55SAI Siem Reap–Angkor Intl-LGW London Gatwick

26h 25m1 stop Singapore Changi

£1,025Singapore Airlines

Wed, 9 Sep - Wed, 7 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

Vietnam Airlines flights from England to Siem Reap

Our best Vietnam Airlines deals on England to Siem Reap flight tickets

Vietnam Airlines

28 Sept

LHR18:55London Heathrow

16h 15m

1 stop

SAI17:10Siem Reap–Angkor Intl

25 Jan

SAI21:30Siem Reap–Angkor Intl

16h 45m

1 stop

LHR07:15London Heathrow

£627

Vietnam Airlines

27 Sept

LHR19:50London Heathrow

15h 20m

1 stop

SAI17:10Siem Reap–Angkor Intl

25 Jan

SAI18:40Siem Reap–Angkor Intl

19h 35m

1 stop

LHR07:15London Heathrow

£640

Vietnam Airlines

28 Sept

LHR18:55London Heathrow

16h 15m

1 stop

SAI17:10Siem Reap–Angkor Intl

22 Jan

SAI21:30Siem Reap–Angkor Intl

16h 45m

1 stop

LHR07:15London Heathrow

£686

Austrian Airlines flights from England to Siem Reap

Our best Austrian Airlines deals on England to Siem Reap flight tickets

Austrian Airlines

28 Jan

LHR06:00London Heathrow

29h 45m

2 stops

SAI18:45Siem Reap–Angkor Intl

31 Jan

SAI09:55Siem Reap–Angkor Intl

29h 25m

2 stops

LHR08:20London Heathrow

£601

Austrian Airlines

3 Dec

LHR06:00London Heathrow

29h 45m

2 stops

SAI18:45Siem Reap–Angkor Intl

14 Dec

SAI19:25Siem Reap–Angkor Intl

19h 55m

2 stops

LHR08:20London Heathrow

£611

Austrian Airlines

3 Dec

LHR06:00London Heathrow

29h 45m

2 stops

SAI18:45Siem Reap–Angkor Intl

14 Dec

SAI09:55Siem Reap–Angkor Intl

35h 10m

2 stops

LHR14:05London Heathrow

£611

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSiem Reap

LGW London Gatwick - SAI Siem Reap–Angkor Intl

LGWSAI

London Gatwick

Wed 16/9

11:00-17:10

2 stops24h 10m

Siem Reap–Angkor Intl

Wed 14/10

18:05-06:30

2 stops42h 25m

£540

LondonSiem Reap

LGW London Gatwick - SAI Siem Reap–Angkor Intl

LGWSAI

London Gatwick

Wed 16/9

11:35-17:10

2 stops23h 35m

Siem Reap–Angkor Intl

Wed 14/10

21:10-06:40

3 stops39h 30m

£588

LondonSiem Reap

LHR London Heathrow - SAI Siem Reap–Angkor Intl

LHRSAI

London Heathrow

Thu 28/1

06:00-18:45

2 stops29h 45m

Siem Reap–Angkor Intl

Sun 31/1

09:55-08:20

2 stops29h 25m

£601

LondonSiem Reap

LHR London Heathrow - SAI Siem Reap–Angkor Intl

LHRSAI

London Heathrow

Wed 3/2

09:05-18:45

2 stops26h 40m

Siem Reap–Angkor Intl

Sun 7/2

09:55-21:40

2 stops18h 45m

£601

Fastest return journey

LondonSiem Reap

LHR London Heathrow - SAI Siem Reap–Angkor Intl

LHRSAI

London Heathrow

Tue 29/9

19:50-18:20

1 stop16h 30m

Siem Reap–Angkor Intl

Mon 25/1

21:30-07:15

1 stop16h 45m

£627

LondonSiem Reap

LHR London Heathrow - SAI Siem Reap–Angkor Intl

LHRSAI

London Heathrow

Wed 30/9

18:55-17:10

1 stop16h 15m

Siem Reap–Angkor Intl

Tue 26/1

17:55-07:15

1 stop20h 20m

£627

ManchesterSiem Reap

MAN Manchester - SAI Siem Reap–Angkor Intl

MANSAI

Manchester

Mon 12/10

09:20-09:00

2 stops41h 40m

Siem Reap–Angkor Intl

Mon 9/11

09:55-12:15

2 stops33h 20m

£747

LondonSiem Reap

LHR London Heathrow - SAI Siem Reap–Angkor Intl

LHRSAI

London Heathrow

Thu 14/1

09:10-09:55

1 stop17h 45m

Siem Reap–Angkor Intl

Sat 23/1

10:45-19:10

1 stop39h 25m

£757

LondonSiem Reap

LHR London Heathrow - SAI Siem Reap–Angkor Intl

LHRSAI

London Heathrow

Wed 27/1

21:45-16:00

1 stop35h 15m

Siem Reap–Angkor Intl

Wed 10/2

10:45-05:55

1 stop26h 10m

£757

ManchesterSiem Reap

MAN Manchester - SAI Siem Reap–Angkor Intl

MANSAI

Manchester

Wed 4/11

08:15-14:25

2 stops47h 10m

Siem Reap–Angkor Intl

Wed 11/11

09:55-12:15

2 stops33h 20m

£773

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 England to Siem Reap

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

Other information

What is the cheapest month to fly to Siem Reap?

The month of June is, on average, the cheapest month to fly to Siem Reap from England, with most prices found around £653. If you don’t want to visit Siem Reap in June, then you should wait until September to fly from England, when ticket prices are also cheap, with an average price of £754.

Can stopping save me money on England to Siem Reap flights?

You could potentially save up to 14% on your flight if you consider stops on a England to Siem Reap flight.

Cheap England to Siem Reap flight deals and tips

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

Best price found	£304
Fastest flight time	14h 25m
Direct flights	None

The best one-way flight to Siem Reap from England in the past 72 hours is £304. The best return flight deal from England to Siem Reap found on momondo in the last 72 hours is £540.

The fastest flight from England to Siem Reap takes 14h 25m

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

Search flight deals

Frequently asked questions about flying from England to Siem Reap

When did momondo last update prices for flights from England to Siem Reap–Angkor Intl Airport?
Prices for flights from England to Siem Reap–Angkor Intl Airport were last updated today.
How many operators does momondo search for flights from England to Siem Reap–Angkor Intl Airport?
The number of operators available for flights from England to Siem Reap–Angkor Intl Airport is 5 as of September 2026.
How old do you have to be to fly from England to Siem Reap–Angkor Intl 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 England to Siem Reap–Angkor Intl Airport.
What documentation or ID do you need to fly to Siem Reap–Angkor Intl Airport?
The necessary travel and health documents for your Siem Reap–Angkor Intl Airport 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.

Best airlines flying from England to Siem Reap

Compare and see reviews for airlines that fly from England to Siem Reap with momondo

Airline	Rating	Free Cancellation	Price
Austrian Airlines	PriceFrom £536	Free Cancellation	Rating 7.6 950 reviews	Search Austrian Airlines flights
Etihad Airways	PriceFrom £544	Free Cancellation	Rating 7.3 1,531 reviews	Search Etihad Airways flights
Vietnam Airlines	PriceFrom £613	Free Cancellation	Rating 7.7 286 reviews	Search Vietnam Airlines flights
Singapore Airlines	PriceFrom £660	Free Cancellation	Rating 8.2 1,593 reviews	Search Singapore Airlines flights
Thai Airways	PriceFrom £885	Free Cancellation	Rating 7.9 418 reviews	Search Thai Airways flights

Why use momondo?

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

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 England to Siem Reap for you.

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

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

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

Once all potential England to Siem Reap flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes. momondo can track prices for England to Siem Reap flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Siem Reap 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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Sun 4/10

Sun 11/10

Email me momondo's favourite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Cambodia

Airlines

Cabin classes

Other Cambodia destinations

Other flights from England

Complete your trip

Feeling lucky

Fly your favourite airline to Siem Reap

Cheap flights from England to Siem Reap from £304

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from England to Siem Reap departing on 10/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from England to Siem Reap

Cheap return flights

Cheap one-way flights

Cheap last-minute flights

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Vietnam Airlines flights from England to Siem Reap

Our best Vietnam Airlines deals on England to Siem Reap flight tickets

Austrian Airlines flights from England to Siem Reap

Our best Austrian Airlines deals on England to Siem Reap flight tickets

momondo Fare Finder

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

See travel insights to Siem Reap from

How to get the cheapest flight ticket from England to Siem Reap

What is the cheapest month to fly to Siem Reap?

Can stopping save me money on England to Siem Reap flights?

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

Which airlines fly to Siem Reap?

How long does it take to fly to Siem Reap?

Cheap England to Siem Reap flight deals and tips

Best price found

Fastest flight time

Direct flights

Frequently asked questions about flying from England to Siem Reap

Best airlines flying from England to Siem Reap

Compare and see reviews for airlines that fly from England to Siem Reap with momondo

Why use momondo?

An easier way to manage your Siem Reap 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 Cambodia

Fly your favourite airline to Siem Reap

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Siem Reap

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

Popular Cities in Cambodia

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from England

According to popular flight searches on momondo this year

Complete your trip to Siem Reap

Explore popular destinations other users love

According to popular flight searches on momondo this year