My husband and I are taking our sons, ages 7 and 11, on their first overseas flight on June 26th. We'll be flying from Austin to Heathrow on British Airways and will land at 10 am. We were originally planning to spend some time in London and then travel around England and Scotland for a month. Our plans have changed, however, and we will instead catch a plane from Heathrow to Edinburgh. Since we didn't book the flight to Edinburgh when we booked the London flight, the flights are going to be on separate tickets. I haven't travelled to Heathrow in years so I'm not sure how much time we need to allot for the airport transfer between flights. I would like to also feed the kids during the break. How much time should I allot between flights? Is it possible to transfer between flights without going through customs in London? We'll probably be checking at least one bag so we'll need to deal with that as well? If we book a BA ticket can I call the airlines and ask them to transfer our baggage between the flights so we don't have to deal with baggage claim?