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Cheap flights from Siem Reap, Cambodia to London Gatwick Airport from £328

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
SAI — LGW
1 May — 8 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Siem Reap to Gatwick

Enter your travel dates to find the best prices.

Cheapest flights from Siem Reap to Gatwick
Explore the most affordable flight options available from Siem Reap to Gatwick. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 April 2026.

Mon 7/910:00
SAI
-
LGW
2 stops27h 20m
Multiple Airlines
Mon 5/1010:25
LGW
-
SAI
2 stops22h 25m
Multiple Airlines
Deal found 30/3£598
Mon 1/610:00
SAI
-
LGW
2 stops32h 35m
Multiple Airlines
Sun 7/606:10
LGW
-
SAI
3 stops26h 40m
Multiple Airlines
Deal found 30/3£730
Tue 8/909:40
SAI
-
LGW
2 stops27h 15m
Multiple Airlines
Sun 4/1010:40
LGW
-
SAI
2 stops26h 05m
Multiple Airlines
Deal found 30/3£755
Thu 10/923:50
SAI
-
LGW
2 stops37h 30m
Emirates
Tue 6/1023:55
LGW
-
SAI
2 stops39h 35m
Emirates
Deal found 30/3£765
Thu 10/923:50
SAI
-
LGW
2 stops25h 55m
Emirates
Sat 3/1021:45
LGW
-
SAI
2 stops32h 30m
Emirates
Deal found 30/3£766
Wed 9/912:55
SAI
-
LGW
2 stops29h 40m
Emirates
Tue 6/1023:55
LGW
-
SAI
2 stops39h 35m
Emirates
Deal found 30/3£791
Sat 5/923:50
SAI
-
LGW
2 stops25h 55m
Emirates
Tue 6/1023:55
LGW
-
SAI
2 stops39h 35m
Emirates
Deal found 30/3£813
Fri 4/912:55
SAI
-
LGW
2 stops24h 25m
Emirates
Tue 6/1023:55
LGW
-
SAI
2 stops39h 35m
Emirates
Deal found 30/3£814
Tue 8/923:50
SAI
-
LGW
2 stops18h 45m
Emirates
Tue 6/1023:55
LGW
-
SAI
2 stops39h 35m
Emirates
Deal found 30/3£822

Find flight deals from Siem Reap to Gatwick

Discover tips and strategies to find the most affordable flight options for your journey from Siem Reap (SAI) to Gatwick (LGW). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 1 April 2026.

Round-trip from

£598

One-way from

£328
7/9-5/10
  • 7/9-5/10
  • 4 total stops
  • 49h 45m total
  • Siem Reap to London
Search Deals
China Eastern
  • China Eastern
  • 10/6
  • 3 total stops
  • 47h 50m total
  • Siem Reap to London
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Siem Reap to Gatwick 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, Cheapflights users made 858,174 searches. Data last updated 1 April 2026.
Use the filters below to find and compare flights from Siem Reap to London Gatwick Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Siem ReapLondon

SAI - LGW

SAILGW

Siem Reap–Angkor Intl

Wed 9/9

19:30-13:25

2 stops23h 55m

London Gatwick

Thu 8/10

08:10-09:00

2 stops18h 50m

£1,055

Siem ReapLondon

SAI - LGW

SAILGW

Siem Reap–Angkor Intl

Fri 4/9

19:30-13:25

2 stops23h 55m

London Gatwick

Thu 8/10

08:10-09:00

2 stops18h 50m

£1,057

Siem ReapLondon

SAI - LGW

SAILGW

Siem Reap–Angkor Intl

Mon 7/9

19:30-13:25

2 stops23h 55m

London Gatwick

Thu 8/10

08:10-09:00

2 stops18h 50m

£1,057
Fastest return journey

Siem ReapLondon

SAI - LGW

SAILGW

Siem Reap–Angkor Intl

Tue 8/9

12:55-06:40

2 stops23h 45m

London Gatwick

Wed 7/10

08:10-09:00

2 stops18h 50m

£1,057

Siem ReapLondon

SAI - LGW

SAILGW

Siem Reap–Angkor Intl

Mon 7/9

19:30-13:25

2 stops23h 55m

London Gatwick

Fri 2/10

08:10-09:00

2 stops18h 50m

£1,057

Siem ReapLondon

SAI - LGW

SAILGW

Siem Reap–Angkor Intl

Mon 7/9

10:30-06:55

1 stop26h 25m

London Gatwick

Thu 8/10

12:20-15:10

1 stop20h 50m

£1,173

Siem ReapLondon

SAI - LGW

SAILGW

Siem Reap–Angkor Intl

Mon 1/6

09:45-08:20

2 stops28h 35m

London Gatwick

Sun 7/6

09:25-18:45

2 stops27h 20m

£1,351
Cheapest one-way

Siem ReapLondon

SAI - LGW

SAILGW

Siem Reap–Angkor Intl

Sat 1/8

15:35-07:25

2 stops21h 50m

£351

Siem ReapLondon

SAI - LGW

SAILGW

Siem Reap–Angkor Intl

Sat 11/4

23:50-12:35

2 stops42h 45m

£390

Siem ReapLondon

SAI - LGW

SAILGW

Siem Reap–Angkor Intl

Tue 21/4

23:50-19:45

2 stops25h 55m

£397

Flights are sorted by cheapest return flights first.

Deals found on 28/3

Showing 1-10 of 16 resultsSorted by cheapest first
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Best time to book a flight from Siem Reap to Gatwick

Have a flexible travel schedule? Discover the best time to fly to Gatwick from Siem Reap with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Siem Reap to Gatwick. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Siem Reap to London Gatwick?

    If you book a flight to London Gatwick from Siem Reap, you will be flying from Siem Reap–Angkor Intl, which is the city’s only airport. Siem Reap–Angkor Intl (SAI) is located 24.7 mi from the center of Siem Reap. There are 0 flights from Siem Reap–Angkor Intl to London Gatwick per day from 0 different airlines.

  • How long is the flight from Siem Reap to London Gatwick Airport?

    For as low as £1,055, Qatar Airways can have you in London Gatwick Airport from Siem Reap in 23h 55m. Siem Reap and London Gatwick Airport are separated by a distance of 6102 mi.

  • Can I find deals for flights from Siem Reap to Gatwick that include hotel bookings?

    Yes. In addition to deals on Siem Reap to Gatwick flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Siem Reap to Gatwick?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Siem Reap to Gatwick.

  • Can I find deals for business class flights from Siem Reap to Gatwick?

    Yes. Cheapflights offers flight deals from Siem Reap to Gatwick by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near London Gatwick Airport?

Book flights to London Gatwick Airport if you plan to visit one of these locations
Milton Keynes
Wembley
Croydon
Hounslow
Gatwick
Slough
Ilford
Luton
Hayes
Brentford
Colchester
Guildford
Watford
Kingston upon Thames
Romford
Eastbourne
Bedford
Chelmsford
Ipswich
Southend-on-Sea

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Siem Reap to Gatwick

See prices for flight routes from nearby airports that may be better suited for you.
Siem Reap to Heathrow flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Siem Reap to Gatwick?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Siem Reap to Gatwick. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Siem Reap to Gatwick?

Millions of users choose and trust Cheapflights to book the best flight deals from Siem Reap to Gatwick for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Siem Reap to Gatwick with no change fees?

Yes, we can. To see specific flights from Siem Reap to Gatwick with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Siem Reap to Gatwick become cheaper?

Yes, Cheapflights offers price alerts on Siem Reap to Gatwick flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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