I need to know if I book a multiple destination flight ticket like travelling from Cairo-Paris-Rome-Cairo the fare would double! In this case is it better to have a round trip and visit countries I want and then return from the same arrival point.
are you sure that the price would be doubled ?!! because if you book round trip you still pay more money on transportation from Paris to Rome then back from rome to Paris which (from my own point of you)will cost more !