Take off on cheap flights from London to Siem Reap, your adventure starts now!

Cheapest dates for London - Siem Reap tickets

  • any
  • May 2019
  • June 2019
  • July 2019
  • August 2019
  • September 2019
  • October 2019
  • November 2019
  • December 2019
  • January 2020
  • February 2020
  • March 2020
  • April 2020
  • any
  • May 2019
  • June 2019
  • July 2019
  • August 2019
  • September 2019
  • October 2019
  • November 2019
  • December 2019
  • January 2020
  • February 2020
  • March 2020
  • April 2020
  • price
  • month of departure
  • month of return
£540
Vietnam Airlines outward: 26-May-2019
12:10 LHR » 11:05 REP
Vietnam Airlines 1 stop (22h55m)
Vietnam Airlines inbound: 02-Jun-2019
13:20 REP » 08:40 LHR
Vietnam Airlines 1 stop (19h20m)
£547
Cathay Pacific outward: 30-Nov-2019
12:20 LGW » 04:05 REP
Cathay Pacific 1 stop (15h45m)
Cathay Pacific inbound: 14-Dec-2019
11:25 REP » 08:00 LHR
Cathay Pacific 1 stop (20h35m)
£548
Cathay Pacific outward: 03-Nov-2019
12:20 LGW » 04:05 REP
Cathay Pacific 1 stop (15h45m)
Cathay Pacific inbound: 12-Nov-2019
05:20 REP » 06:30 LGW
Cathay Pacific 1 stop (25h10m)
£548
Vietnam Airlines outward: 19-Jun-2019
12:10 LHR » 12:30 REP
Vietnam Airlines 1 stop (24h20m)
Vietnam Airlines inbound: 10-Jul-2019
11:55 REP » 08:40 LHR
Vietnam Airlines 1 stop (20h45m)
£548
Cathay Pacific outward: 10-Nov-2019
12:20 LGW » 04:05 REP
Cathay Pacific 1 stop (15h45m)
Cathay Pacific inbound: 24-Nov-2019
05:20 REP » 07:20 LHR
Cathay Pacific 1 stop (26h)
£553
Vietnam Airlines outward: 22-Jun-2019
12:10 LHR » 12:30 REP
Vietnam Airlines 1 stop (24h20m)
Vietnam Airlines inbound: 07-Jul-2019
13:20 REP » 08:40 LHR
Vietnam Airlines 1 stop (19h20m)
£556
Vietnam Airlines outward: 08-Jun-2019
12:10 LHR » 12:30 REP
Vietnam Airlines 1 stop (24h20m)
Vietnam Airlines inbound: 20-Jun-2019
11:55 REP » 08:40 LHR
Vietnam Airlines 1 stop (20h45m)
£565
Singapore Airlines outward: 05-Feb-2020
10:10 LHR » 08:55 REP
Singapore Airlines 1 stop (22h45m)
Singapore Airlines inbound: 26-Feb-2020
04:40 REP » 08:20 LHR
Singapore Airlines 1 stop (27h40m)
£579
Cathay Pacific outward: 25-May-2019
13:20 LHR » 04:30 REP
Cathay Pacific 1 stop (15h10m)
Cathay Pacific inbound: 01-Jun-2019
15:05 REP » 07:20 LHR
Cathay Pacific 1 stop (16h15m)
£585
China Southern Airlines outward: 20-Sep-2019
23:10 LHR » 05:25 REP
China Southern Airlines 2 stops (30h15m)
China Southern Airlines inbound: 11-Oct-2019
14:35 REP » 16:05 LHR
China Southern Airlines 1 stop (25h30m)
£586
Vietnam Airlines outward: 10-Sep-2019
12:10 LHR » 11:05 REP
Vietnam Airlines 1 stop (22h55m)
Vietnam Airlines inbound: 17-Mar-2020
15:15 REP » 08:15 LHR
Vietnam Airlines 1 stop (17h)
£588
Vietnam Airlines outward: 12-Oct-2019
12:10 LHR » 12:30 REP
Vietnam Airlines 1 stop (24h20m)
Vietnam Airlines inbound: 19-Oct-2019
11:55 REP » 08:40 LHR
Vietnam Airlines 1 stop (20h45m)
£588
Vietnam Airlines outward: 21-Aug-2019
12:10 LHR » 15:35 REP
Vietnam Airlines 1 stop (27h25m)
Vietnam Airlines inbound: 04-Sep-2019
11:55 REP » 08:40 LHR
Vietnam Airlines 1 stop (20h45m)
£589
Vietnam Airlines outward: 09-Jun-2019
12:10 LHR » 12:10 REP
Vietnam Airlines 1 stop (24h)
Vietnam Airlines inbound: 16-Jun-2019
13:20 REP » 08:40 LHR
Vietnam Airlines 1 stop (19h20m)
£593
Thai Airways outward: 18-Sep-2019
13:30 LHR » 03:50 REP
Thai Airways 1 stop (14h20m)
Thai Airways inbound: 25-Sep-2019
04:55 REP » 19:45 LHR
Thai Airways 1 stop (14h50m)
£594
Vietnam Airlines outward: 06-Jan-2020
12:00 LHR » 03:40 REP
Vietnam Airlines 1 stop (15h40m)
Vietnam Airlines inbound: 03-Feb-2020
11:05 REP » 08:15 LHR
Vietnam Airlines 1 stop (21h10m)
£596
Vietnam Airlines outward: 08-Oct-2019
12:10 LHR » 11:05 REP
Vietnam Airlines 1 stop (22h55m)
Vietnam Airlines inbound: 22-Oct-2019
06:35 REP » 08:40 LHR
Vietnam Airlines 1 stop (26h05m)
£596
Vietnam Airlines outward: 10-Oct-2019
12:10 LHR » 11:05 REP
Vietnam Airlines 1 stop (22h55m)
Vietnam Airlines inbound: 24-Oct-2019
11:55 REP » 08:40 LHR
Vietnam Airlines 1 stop (20h45m)
£597
Vietnam Airlines outward: 10-Oct-2019
12:10 LHR » 11:05 REP
Vietnam Airlines 1 stop (22h55m)
Vietnam Airlines inbound: 24-Oct-2019
11:55 REP » 08:40 LHR
Vietnam Airlines 1 stop (20h45m)
£597
Vietnam Airlines outward: 10-Sep-2019
12:10 LHR » 11:05 REP
Vietnam Airlines 1 stop (22h55m)
Vietnam Airlines inbound: 24-Sep-2019
06:35 REP » 08:40 LHR
Vietnam Airlines 1 stop (26h05m)
£598
Vietnam Airlines outward: 06-Jan-2020
12:00 LHR » 03:40 REP
Vietnam Airlines 1 stop (15h40m)
Vietnam Airlines inbound: 03-Feb-2020
14:30 REP » 08:15 LHR
Vietnam Airlines 1 stop (17h45m)
£601
Vietnam Airlines outward: 12-Sep-2019
12:10 LHR » 11:05 REP
Vietnam Airlines 1 stop (22h55m)
Vietnam Airlines inbound: 12-Oct-2019
13:05 REP » 08:40 LHR
Vietnam Airlines 1 stop (19h35m)
£605
Vietnam Airlines outward: 01-Oct-2019
12:10 LHR » 11:05 REP
Vietnam Airlines 1 stop (22h55m)
Vietnam Airlines inbound: 22-Oct-2019
06:35 REP » 08:40 LHR
Vietnam Airlines 1 stop (26h05m)
£613
China Southern Airlines outward: 22-May-2019
09:40 LHR » 05:25 REP
China Southern Airlines 2 stops (19h45m)
China Southern Airlines inbound: 01-Jun-2019
06:30 REP » 19:45 LHR
China Southern Airlines 1 stop (37h15m)
£617
Thai Airways outward: 08-Sep-2019
13:30 LHR » 03:50 REP
Thai Airways 1 stop (14h20m)
Thai Airways inbound: 15-Sep-2019
16:25 REP » 19:45 LHR
Thai Airways 1 stop (27h20m)
£624
Thai Airways outward: 04-Oct-2019
22:25 LHR » 15:15 REP
Thai Airways 1 stop (16h50m)
Thai Airways inbound: 18-Oct-2019
04:55 REP » 19:45 LHR
Thai Airways 1 stop (14h50m)
£629
China Southern Airlines outward: 25-May-2019
23:35 LHR » 05:25 REP
China Southern Airlines 1 stop (29h50m)
China Southern Airlines inbound: 01-Jun-2019
06:30 REP » 19:45 LHR
China Southern Airlines 1 stop (37h15m)
£629
China Southern Airlines outward: 25-May-2019
23:35 LHR » 05:25 REP
China Southern Airlines 1 stop (29h50m)
China Southern Airlines inbound: 01-Jun-2019
06:30 REP » 19:45 LHR
China Southern Airlines 1 stop (37h15m)
£630
China Southern Airlines outward: 02-Jun-2019
07:30 LHR » 05:25 REP
China Southern Airlines 2 stops (21h55m)
China Southern Airlines inbound: 09-Jun-2019
06:30 REP » 16:05 LHR
China Southern Airlines 1 stop (33h35m)
£659
Thai Airways outward: 30-Jun-2019
13:30 LHR » 03:50 REP
Thai Airways 1 stop (14h20m)
Thai Airways inbound: 19-Jul-2019
04:55 REP » 19:45 LHR
Thai Airways 1 stop (14h50m)
Return
Departure
Choose when you'd like to depart to Siem Reap (Cambodia):
Find the cheapest London Siem Reap flight by browsing the dates below to find alternative flight prices found in the last days. To launch a flight search for London - Siem Reap with these new dates, click on an offer. Want to depart from another city? Choose:

Airlines operating flights from London to Siem Reap

  • any
  • May 2019
  • June 2019
  • July 2019
  • August 2019
  • September 2019
  • October 2019
  • November 2019
  • December 2019
  • January 2020
  • February 2020
  • March 2020
  • April 2020
  • all
  • Cathay Pacific
  • Lufthansa
  • Singapore Airlines
  • Thai Airways
outbound: 25-May-2019
Cathay Pacific 1 stop
return: 01-Jun-2019
Cathay Pacific 1 stop
outbound: 10-Sep-2019
Thai Airways 1 stop
return: 17-Mar-2020
Thai Airways 1 stop
outbound: 30-Jun-2019
Singapore Airlines 1 stop
return: 19-Jul-2019
Singapore Airlines 1 stop
outbound: 04-Aug-2019
Lufthansa 2 stops
return: 27-Aug-2019
Silkair 2 stops

About London - Siem Reap flights

Average flight duration: 20h27m (flight with stopovers)

  • Arrival city:
  • Siem Reap, Cambodia
  • Airport(s):
  • Siem Reap International Airport (REP)
  • Local time:
  • 21-May-2019 01:59, GMT+7
  • Weather:
  • min. 27ºC, max. 37ºC
  • Departure city:
  • London, United Kingdom
  • Airport(s):
  • London City Airport (LCY)
  • Heathrow Airport (LHR)
  • Gatwick Airport (LGW)
  • Luton Airport (LTN)
  • Stansted Airport (STN)
  • Southend Airport (SEN)
  • Local time:
  • 20-May-2019 19:59, GMT+1
  • Weather:
  • min. 13ºC, max. 20ºC

Most popular cheap hotels in Siem Reap