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Cheap flights from Siem Reap, Cambodia to London Gatwick Airport from £412

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 31/7. Fares are subject to change and may not be available on all flights or dates of travel.
SAI — LGW
20 Jun — 27 Jun1
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 21 May 2026.

Tue 8/915:35
SAI
-
LGW
2 stops21h 50m
Multiple Airlines
Tue 29/910:25
LGW
-
SAI
2 stops22h 25m
Multiple Airlines
Deal found 19/5£708
Sun 24/513:05
SAI
-
LGW
2 stops29h 30m
Emirates
Sun 31/521:45
LGW
-
SAI
2 stops32h 35m
Emirates
Deal found 17/5£892
Tue 8/923:50
SAI
-
LGW
2 stops18h 45m
Emirates
Mon 5/1014:35
LGW
-
SAI
2 stops24h 55m
Emirates
Deal found 19/5£920
Tue 8/910:30
SAI
-
LGW
1 stop26h 25m
Singapore Airlines
Tue 29/913:15
LGW
-
SAI
1 stop19h 55m
Singapore Airlines
Deal found 19/5£1,112
Tue 8/915:35
SAI
-
LGW
2 stops21h 50m
Multiple Airlines
Mon 5/1010:05
LGW
-
SAI
1 stop17h 35m
Multiple Airlines
Deal found 19/5£1,880
Sun 24/510:30
SAI
-
LGW
1 stop26h 25m
Singapore Airlines
Sun 31/510:10
LGW
-
SAI
1 stop17h 30m
Singapore Airlines
Deal found 17/5£2,220

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 21 May 2026.

Round-trip from

£708

One-way from

£412
8/9-29/9
  • 8/9-29/9
  • 4 total stops
  • 44h 15m total
  • Siem Reap to London
Search Deals
China Eastern
  • China Eastern
  • 31/7
  • 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 21 May 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

Tue 8/9

15:35-07:25

2 stops21h 50m

London Gatwick

Tue 29/9

10:25-14:50

2 stops22h 25m

£708

Siem ReapLondon

SAI - LGW

SAILGW

Siem Reap–Angkor Intl

Tue 8/9

10:30-06:55

1 stop26h 25m

London Gatwick

Tue 29/9

13:15-15:10

1 stop19h 55m

£1,112
Fastest return journey

Siem ReapLondon

SAI - LGW

SAILGW

Siem Reap–Angkor Intl

Tue 8/9

15:35-07:25

2 stops21h 50m

London Gatwick

Mon 5/10

10:05-09:40

1 stop17h 35m

£1,880
Cheapest one-way

Siem ReapLondon

SAI - LGW

SAILGW

Siem Reap–Angkor Intl

Fri 31/7

21:10-15:00

2 stops47h 50m

£412
Fastest single journey

Siem ReapLondon

SAI - LGW

SAILGW

Siem Reap–Angkor Intl

Fri 31/7

19:30-05:55

1 stop16h 25m

£753

Flights are sorted by cheapest return flights first.

Deals found on 20/5

Sorted by cheapest first

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 £1,112, Singapore Airlines can have you in London Gatwick Airport from Siem Reap in 26h 25m. 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
Hounslow
Croydon
Wembley
Luton
Gatwick
Slough
Ilford
Hayes
Brentford
Colchester
Romford
Watford
Kingston upon Thames
Eastbourne
Ipswich
Southend-on-Sea
Guildford
Southall
Chelmsford

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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

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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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