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

Cheapest dates for London - Siem Reap tickets

  • any
  • September 2018
  • October 2018
  • November 2018
  • December 2018
  • January 2019
  • February 2019
  • March 2019
  • April 2019
  • May 2019
  • June 2019
  • July 2019
  • August 2019
  • any
  • September 2018
  • October 2018
  • November 2018
  • December 2018
  • January 2019
  • February 2019
  • March 2019
  • April 2019
  • May 2019
  • June 2019
  • July 2019
  • August 2019
  • price
  • month of departure
  • month of return
£395
outward: 24-Nov-2018
18:05 LHR » 04:20 REP
China Southern Airlines 2 stops (34h15m)
inbound: 01-Dec-2018
12:20 REP » 19:30 LHR
China Southern Airlines 2 stops (31h10m)
£395
outward: 18-Nov-2018
09:40 LHR » 04:20 REP
China Southern Airlines 2 stops (18h40m)
inbound: 02-Dec-2018
12:20 REP » 15:30 LHR
China Southern Airlines 1 stop (27h10m)
£461
outward: 18-Oct-2018
23:10 LHR » 05:25 REP
China Southern Airlines 2 stops (30h15m)
inbound: 01-Nov-2018
12:20 REP » 15:30 LHR
China Southern Airlines 1 stop (27h10m)
£465
outward: 30-Oct-2018
09:40 LHR » 04:20 REP
China Southern Airlines 2 stops (18h40m)
inbound: 13-Nov-2018
12:20 REP » 11:45 LHR
China Southern Airlines 2 stops (23h25m)
£469
outward: 30-Sep-2018
23:10 LHR » 05:25 REP
China Southern Airlines 2 stops (30h15m)
inbound: 14-Oct-2018
14:35 REP » 16:05 LHR
China Southern Airlines 1 stop (25h30m)
£487
outward: 09-May-2019
12:25 LHR » 04:50 REP
Singapore Airlines 1 stop (16h25m)
inbound: 23-May-2019
11:10 REP » 06:55 LHR
Singapore Airlines 1 stop (19h45m)
£491
outward: 05-Feb-2019
11:55 LHR » 03:45 REP
Singapore Airlines 1 stop (15h50m)
inbound: 31-Mar-2019
05:40 REP » 06:55 LHR
Singapore Airlines 1 stop (25h15m)
£491
outward: 21-Feb-2019
11:55 LHR » 03:45 REP
Singapore Airlines 1 stop (15h50m)
inbound: 05-Mar-2019
04:40 REP » 08:20 LHR
Singapore Airlines 1 stop (27h40m)
£491
outward: 30-Jan-2019
11:55 LHR » 08:55 REP
Singapore Airlines 1 stop (21h)
inbound: 13-Feb-2019
04:40 REP » 06:55 LHR
Singapore Airlines 1 stop (26h15m)
£491
outward: 30-Apr-2019
23:05 LHR » 10:05 REP
Singapore Airlines 1 stop (35h)
inbound: 14-May-2019
11:10 REP » 06:55 LHR
Singapore Airlines 1 stop (19h45m)
£492
outward: 18-Feb-2019
11:55 LHR » 03:45 REP
Singapore Airlines 1 stop (15h50m)
inbound: 04-Mar-2019
06:25 REP » 06:55 LHR
Singapore Airlines 1 stop (24h30m)
£492
outward: 18-Mar-2019
11:55 LHR » 03:45 REP
Singapore Airlines 1 stop (15h50m)
inbound: 01-Apr-2019
11:10 REP » 16:40 LHR
Singapore Airlines 1 stop (29h30m)
£514
outward: 22-Jan-2019
10:10 LHR » 03:45 REP
Singapore Airlines 1 stop (17h35m)
inbound: 30-Jan-2019
04:40 REP » 16:20 LHR
Singapore Airlines 1 stop (35h40m)
£516
outward: 26-Oct-2018
23:05 LHR » 03:45 REP
Singapore Airlines 1 stop (29h40m)
inbound: 05-Nov-2018
09:45 REP » 06:55 LHR
Singapore Airlines 1 stop (21h10m)
£517
outward: 09-Mar-2019
11:55 LHR » 03:45 REP
Singapore Airlines 1 stop (15h50m)
inbound: 23-Mar-2019
04:40 REP » 16:20 LHR
Singapore Airlines 1 stop (35h40m)
£518
outward: 16-Feb-2019
22:35 LHR » 13:45 REP
Thai Airways 1 stop (15h10m)
inbound: 26-Feb-2019
03:15 REP » 20:35 LHR
Thai Airways 1 stop (17h20m)
£521
outward: 17-Feb-2019
11:55 LHR » 05:25 REP
Singapore Airlines 1 stop (17h30m)
inbound: 24-Feb-2019
12:55 REP » 06:55 LHR
Singapore Airlines 1 stop (18h)
£521
outward: 16-Jan-2019
12:50 LHR » 02:15 REP
Thai Airways 1 stop (13h25m)
inbound: 30-Jan-2019
03:15 REP » 20:35 LHR
Thai Airways 1 stop (17h20m)
£521
outward: 11-Jan-2019
12:50 LHR » 02:15 REP
Thai Airways 1 stop (13h25m)
inbound: 21-Jan-2019
14:45 REP » 07:20 LHR
Thai Airways 1 stop (16h35m)
£521
outward: 16-Feb-2019
22:35 LHR » 13:45 REP
Thai Airways 1 stop (15h10m)
inbound: 23-Feb-2019
03:15 REP » 20:35 LHR
Thai Airways 1 stop (17h20m)
£521
outward: 09-Jun-2019
13:30 LHR » 03:50 REP
Thai Airways 1 stop (14h20m)
inbound: 30-Jun-2019
04:55 REP » 19:45 LHR
Thai Airways 1 stop (14h50m)
£522
outward: 26-Oct-2018
10:25 LHR » 10:05 REP
Singapore Airlines 1 stop (23h40m)
inbound: 09-Nov-2018
04:40 REP » 16:20 LHR
Singapore Airlines 1 stop (35h40m)
£522
outward: 18-Jan-2019
12:50 LHR » 02:15 REP
Thai Airways 1 stop (13h25m)
inbound: 01-Feb-2019
14:45 REP » 07:20 LHR
Thai Airways 1 stop (16h35m)
£522
outward: 18-May-2019
13:30 LHR » 03:50 REP
Thai Airways 1 stop (14h20m)
inbound: 01-Jun-2019
04:55 REP » 19:45 LHR
Thai Airways 1 stop (14h50m)
£522
outward: 18-Jun-2019
13:30 LHR » 03:50 REP
Thai Airways 1 stop (14h20m)
inbound: 02-Jul-2019
04:55 REP » 19:45 LHR
Thai Airways 1 stop (14h50m)
£531
outward: 15-Mar-2019
12:50 LHR » 02:15 REP
Thai Airways 1 stop (13h25m)
inbound: 29-Mar-2019
14:45 REP » 07:20 LHR
Thai Airways 1 stop (16h35m)
£533
outward: 09-Jan-2019
12:50 LHR » 02:15 REP
Thai Airways 1 stop (13h25m)
inbound: 23-Jan-2019
14:45 REP » 07:20 LHR
Thai Airways 1 stop (16h35m)
£533
outward: 09-Feb-2019
12:50 LHR » 02:15 REP
Thai Airways 1 stop (13h25m)
inbound: 23-Feb-2019
03:15 REP » 20:35 LHR
Thai Airways 1 stop (17h20m)
£533
outward: 09-Jun-2019
13:30 LHR » 03:50 REP
Thai Airways 1 stop (14h20m)
inbound: 23-Jun-2019
04:55 REP » 19:45 LHR
Thai Airways 1 stop (14h50m)
£552
outward: 03-Jan-2019
12:00 LHR » 10:10 REP
Vietnam Airlines 2 stops (22h10m)
inbound: 28-Mar-2019
11:05 REP » 08:15 LHR
Vietnam Airlines 2 stops (21h10m)
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: Edinburgh - Siem Reap See more routes

Airlines operating flights from London to Siem Reap

  • any
  • September 2018
  • October 2018
  • November 2018
  • December 2018
  • January 2019
  • February 2019
  • March 2019
  • April 2019
  • May 2019
  • June 2019
  • July 2019
  • August 2019
  • all
  • British Airways
  • Malaysia Airlines
  • Singapore Airlines
  • Thai Airways
outbound: 05-Feb-2019
Singapore Airlines 1 stop
return: 31-Mar-2019
Singapore Airlines 1 stop
outbound: 16-Feb-2019
Thai Airways 1 stop
return: 23-Feb-2019
Thai Airways 1 stop
outbound: 18-May-2019
Malaysia Airlines 1 stop
return: 01-Jun-2019
Malaysia Airlines 1 stop
outbound: 30-May-2019
British Airways 1 stop
return: 13-Jun-2019
Cathay Pacific 1 stop

About London - Siem Reap flights

Average flight duration: 16h45m (flight with stopovers)

  • Arrival city:
  • Siem Reap, Cambodia
  • Airport(s):
  • Siem Reap International Airport (REP)
  • Local time:
  • 25-Sep-2018 06:30, GMT+7
  • Weather:
  • min. 26ºC, max. 33ºC
  • 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:
  • 25-Sep-2018 00:30, GMT+1
  • Weather:
  • min. 13ºC, max. 20ºC

Most popular cheap hotels in Siem Reap