Use Amadeus web site. Amadeus are the providers to all the Airlines and ticket agencies of soft ware to run the online booking systems. The cheapest flights are shown here:
http://www.amadeus.n...CEU&LANGUAGE=GBYou can search by best prices, direct or indirect flights with total trip times and prefered airlines. When you visit a ticketing agent they use Amadeus to make your booking. However they will start with the best price for themselves to up their commission. (Forewarned is Forearmed)
The cheapest to London Heathrow is Sri Lankan Airlines at B34,200. I went at christmas by Sri Lankan because I took my wife and our two children and this cost B27,400 RET each, a saving of B50,400, Only draw back is the long stop over of 4 to 7hrs in Colombo. Also they have some second hand planes from British Midland and Cathay Pacific. Whilst they are rapidly replacing these if you are unlucky and get the older planes the TV screen is small and seating less comfortable.
Cheapest KLM flight until 20th, is B40,000 and flight time 14.5hrs to LHR or Manchester
Edited by Estrada, 2012-08-13 09:18:32.