We live overseas and travel to uk once a year to visit family. This year have booked with BA and after booking tried top rebook seats as have fone previously to discover there is a charge for this. Is this common practice now on all airlines? Our currency exchange is terrible at the moment, the flights have cost much more than last year so the extra charge makes a difference and annoys me a bit.?um traveling alone with a 5 year old and 2 year old, I don't mind where we sit as long as it's a row of three by the window- should I just leave it and hope we get decent seats at check in? Surely they won't split us over an aisle.