Cheap flights from England to Siem Reap from £378

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 20/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from England to Siem Reap

Cheap return flights

Enter your travel dates to find the best prices.
Etihad Airways Logo
09:30 - 09:00
LHR
-
SAI
41h 30m
2 stops
Etihad Airways Logo
19:20 - 18:45
SAI
-
LHR
29h 25m
2 stops
£576Etihad Airways
Fri, 12 Jun - Fri, 26 Jun
China Eastern Logo
10:30 - 21:00
LGW
-
SAI
27h 30m
3 stops
China Eastern Logo
22:00 - 06:30
SAI
-
LGW
39h 30m
2 stops
£580China Eastern
Wed, 4 Nov - Sat, 28 Nov
SWISS Logo
09:25 - 18:55
LGW
-
SAI
27h 30m
2 stops
SWISS Logo
09:40 - 08:25
SAI
-
LGW
28h 45m
2 stops
£679SWISS
Sat, 12 Sep - Wed, 23 Sep
Multiple Airlines Logo
17:00 - 19:05
LGW
-
SAI
43h 05m
2 stops
Multiple Airlines Logo
22:00 - 06:30
SAI
-
LGW
39h 30m
2 stops
£695Multiple Airlines
Wed, 4 Nov - Sat, 28 Nov
SWISS Logo
09:05 - 18:55
LGW
-
SAI
27h 50m
2 stops
SWISS Logo
09:40 - 08:25
SAI
-
LGW
28h 45m
2 stops
£719SWISS
Sun, 14 Jun - Tue, 30 Jun
Multiple Airlines Logo
10:30 - 13:15
LGW
-
SAI
43h 45m
2 stops
Multiple Airlines Logo
22:00 - 06:30
SAI
-
LGW
39h 30m
2 stops
£744Multiple Airlines
Fri, 6 Nov - Sat, 28 Nov
Emirates Logo
20:15 - 21:10
STN
-
SAI
41h 55m
2 stops
Emirates Logo
23:50 - 12:05
SAI
-
STN
43h 15m
2 stops
£760Emirates
Tue, 3 Nov - Sat, 21 Nov
Singapore Airlines Logo
13:00 - 15:55
LGW
-
SAI
19h 55m
1 stop
Singapore Airlines Logo
10:45 - 09:00
SAI
-
LGW
29h 15m
1 stop
£761Singapore Airlines
Wed, 4 Nov - Sat, 28 Nov
Emirates Logo
14:05 - 21:10
STN
-
SAI
24h 05m
2 stops
Emirates Logo
23:50 - 17:55
SAI
-
STN
25h 05m
2 stops
£763Emirates
Wed, 4 Nov - Thu, 26 Nov
Singapore Airlines Logo
10:05 - 09:50
MAN
-
SAI
16h 45m
1 stop
Singapore Airlines Logo
10:45 - 08:35
SAI
-
MAN
28h 50m
1 stop
£774Singapore Airlines
Mon, 26 Oct - Sun, 8 Nov

China Eastern flights from England to Siem Reap

Our best China Eastern deals on England to Siem Reap flight tickets
China Eastern
4 Nov
LGW10:30London Gatwick
27h 30m
3 stops
SAI21:00Siem Reap–Angkor Intl
28 Nov
SAI22:00Siem Reap–Angkor Intl
39h 30m
2 stops
LGW06:30London Gatwick
£580
China Eastern
8 Nov
LGW17:00London Gatwick
45h 00m
3 stops
SAI21:00Siem Reap–Angkor Intl
28 Nov
SAI22:00Siem Reap–Angkor Intl
39h 30m
3 stops
LGW06:30London Gatwick
£616
China Eastern
6 Nov
LGW10:30London Gatwick
27h 30m
3 stops
SAI21:00Siem Reap–Angkor Intl
28 Nov
SAI22:00Siem Reap–Angkor Intl
39h 30m
3 stops
LGW06:30London Gatwick
£629

Singapore Airlines flights from England to Siem Reap

Our best Singapore Airlines deals on England to Siem Reap flight tickets
Singapore Airlines
4 Nov
LGW13:00London Gatwick
19h 55m
1 stop
SAI15:55Siem Reap–Angkor Intl
28 Nov
SAI10:45Siem Reap–Angkor Intl
29h 15m
1 stop
LGW09:00London Gatwick
£761
Singapore Airlines
26 Oct
MAN10:05Manchester
16h 45m
1 stop
SAI09:50Siem Reap–Angkor Intl
8 Nov
SAI10:45Siem Reap–Angkor Intl
28h 50m
1 stop
MAN08:35Manchester
£774
Singapore Airlines
6 Nov
LGW09:20London Gatwick
23h 35m
1 stop
SAI15:55Siem Reap–Angkor Intl
28 Nov
SAI10:45Siem Reap–Angkor Intl
26h 40m
1 stop
LGW06:25London Gatwick
£789

momondo Fare Finder

 
Customise your flight search to find flights from England to Siem Reap that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 13 May 2026.
Use the filters below to find and compare flights from England to Siem Reap that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Fri 12/6

09:30-09:00

2 stops41h 30m

Siem Reap–Angkor Intl

Fri 26/6

19:20-18:45

2 stops29h 25m

£576

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Wed 4/11

10:30-21:00

3 stops27h 30m

Siem Reap–Angkor Intl

Sat 28/11

22:00-06:30

2 stops39h 30m

£580

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Sat 12/9

09:25-18:55

2 stops27h 30m

Siem Reap–Angkor Intl

Wed 23/9

09:40-08:25

2 stops28h 45m

£679

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Wed 4/11

17:00-19:05

2 stops43h 05m

Siem Reap–Angkor Intl

Sat 28/11

22:00-06:30

2 stops39h 30m

£695

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Sun 14/6

09:05-18:55

2 stops27h 50m

Siem Reap–Angkor Intl

Tue 30/6

09:40-08:25

2 stops28h 45m

£719

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Fri 6/11

10:30-13:15

2 stops43h 45m

Siem Reap–Angkor Intl

Sat 28/11

22:00-06:30

2 stops39h 30m

£744

LondonSiem Reap

STN - SAI

STNSAI

London Stansted

Tue 3/11

20:15-21:10

2 stops41h 55m

Siem Reap–Angkor Intl

Sat 21/11

23:50-12:05

2 stops43h 15m

£760

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Wed 4/11

13:00-15:55

1 stop19h 55m

Siem Reap–Angkor Intl

Sat 28/11

10:45-09:00

1 stop29h 15m

£761

LondonSiem Reap

STN - SAI

STNSAI

London Stansted

Wed 4/11

14:05-21:10

2 stops24h 05m

Siem Reap–Angkor Intl

Thu 26/11

23:50-17:55

2 stops25h 05m

£763
Fastest return journey

ManchesterSiem Reap

MAN - SAI

MANSAI

Manchester

Mon 26/10

10:05-09:50

1 stop16h 45m

Siem Reap–Angkor Intl

Sun 8/11

10:45-08:35

1 stop28h 50m

£774

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Siem Reap from

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

What is the cheapest month to fly to Siem Reap?

The month of May is, on average, the cheapest month to fly to Siem Reap from England, with most prices found around £524. If you don’t want to visit Siem Reap in May, then you should wait until March to fly from England, when ticket prices are also cheap, with an average price of £534.

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

You could potentially save up to 13% 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

Fastest flight time

17h 05m

Direct flights

None
The fastest flight from England to Siem Reap takes 17h 05m
There are no direct flights from England to Siem Reap. There are no popular flight routes from England to Siem Reap.

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?

  • 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 AirlinesPriceFrom £535Free CancellationRating
7.6
915 reviews
Search Austrian Airlines flights
LufthansaPriceFrom £593Free CancellationRating
6.8
7,993 reviews
Search Lufthansa flights
Vietnam AirlinesPriceFrom £614Free CancellationRating
7.7
268 reviews
Search Vietnam Airlines flights
Singapore AirlinesPriceFrom £659Free CancellationRating
8.2
1,510 reviews
Search Singapore Airlines flights
EmiratesPriceFrom £845Free CancellationRating
8.1
3,571 reviews
Search Emirates flights
Thai AirwaysPriceFrom £855Free CancellationRating
7.9
401 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.

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1 adult
Fri 12/6
Fri 19/6

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