Cheap flights from London Gatwick Airport to Siem Reap from £405

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Gatwick Airport 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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Cheap return flights

Enter your travel dates to find the best prices.
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
China Eastern Logo
17:00 - 21:00
LGW
-
SAI
45h 00m
3 stops
China Eastern Logo
22:00 - 06:30
SAI
-
LGW
39h 30m
3 stops
£616China Eastern
Sun, 8 Nov - Sat, 28 Nov
China Eastern Logo
10:30 - 21:00
LGW
-
SAI
27h 30m
3 stops
China Eastern Logo
22:00 - 06:30
SAI
-
LGW
39h 30m
3 stops
£629China Eastern
Fri, 6 Nov - Sat, 28 Nov
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
£667China Eastern
Wed, 4 Nov - Thu, 26 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
China Eastern Logo
10:30 - 21:00
LGW
-
SAI
27h 30m
3 stops
China Eastern Logo
22:00 - 06:30
SAI
-
LGW
39h 30m
3 stops
£718China Eastern
Fri, 6 Nov - Thu, 19 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
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

China Eastern flights from London Gatwick Airport to Region of Siem Reap

Our best China Eastern deals on London Gatwick Airport to Region of 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
3 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 London Gatwick Airport to Region of Siem Reap

Our best Singapore Airlines deals on London Gatwick Airport to Region of 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
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
Singapore Airlines
26 Oct
LGW13:00London Gatwick
19h 55m
1 stop
SAI15:55Siem Reap–Angkor Intl
4 Nov
SAI10:45Siem Reap–Angkor Intl
29h 15m
1 stop
LGW09:00London Gatwick
£804

momondo Fare Finder

 
Customise your flight search to find flights from London Gatwick Airport to Region of 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 London Gatwick Airport to Siem Reap that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

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

Sun 8/11

17:00-21:00

3 stops45h 00m

Siem Reap–Angkor Intl

Sat 28/11

22:00-06:30

3 stops39h 30m

£616

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Fri 6/11

10:30-21:00

3 stops27h 30m

Siem Reap–Angkor Intl

Sat 28/11

22:00-06:30

3 stops39h 30m

£629

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Wed 4/11

10:30-21:00

3 stops27h 30m

Siem Reap–Angkor Intl

Thu 26/11

22:00-06:30

2 stops39h 30m

£667

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

Fri 6/11

10:30-21:00

3 stops27h 30m

Siem Reap–Angkor Intl

Thu 19/11

22:00-06:30

3 stops39h 30m

£718

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
Fastest return journey

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

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from London Gatwick Airport to Region of 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

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

You could potentially save up to 13% on your flight if you consider stops on a London Gatwick Airport to Region of Siem Reap flight.

Cheap London Gatwick Airport to Region of Siem Reap flight deals and tips

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

Fastest flight time

17h 30m

Direct flights

None
The fastest flight from London Gatwick Airport to Region of Siem Reap takes 17h 30m
There are no direct flights from London Gatwick Airport to Region of Siem Reap. There are no popular flight routes from London Gatwick Airport to Region of Siem Reap.

Frequently asked questions about flying from London Gatwick Airport to Siem Reap

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

    Prices for flights from London Gatwick Airport to Siem Reap refresh daily.

  • How many operators does momondo search for flights from London Gatwick Airport to Siem Reap?

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

    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 London Gatwick Airport to Siem Reap.

  • What documentation or ID do you need to fly to Siem Reap?

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

Best airlines flying from London Gatwick Airport to Region of Siem Reap

Compare and see reviews for airlines that fly from London Gatwick Airport to Region of Siem Reap with momondo
Airline
Rating
Free Cancellation
Price
Singapore AirlinesPriceFrom £709Free CancellationRating
8.2
1,510 reviews
Search Singapore Airlines flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to Siem Reap . Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo allows you to filter the results for London to Siem Reap flights to just show those with flexible booking policies.

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

momondo helps you find the best flight between London and Siem Reap by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are not ready to book a flight from London to Siem Reap now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Siem Reap and let you know when they change.

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1 adult
Fri 12/6
Fri 19/6

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