Originally Posted by
foxyankee
How much is a change before departure?
Is it possible to shift my day of flight for the flight back home by 2 weeks?
My present ticket is BKK-KUL(MH)-LHR-AMS(BA).
Is it possible to keep that routing and how much is the change for the date of travel?
As the routing via KUL to BKK is no longer available under the low fare the changes will probably not be cheap.
Changes before departure to onward flights (first fare component) are similar to bying a new ticket with most airlines - see what you can get now for your dates/ route, this will be the answer. And do not forget to add the change fee from your current ticket.