Linking Oneworld flight bookings
I’m scheduled to fly on a BA ticket (but AA codeshare) from London to Chicago and need to link an onward connection (still to purchase) to Columbus with American.
I gather it’s possible to link the two bookings so that it avoids issues if my 1st leg flight is delayed.
Should I make the booking via the American site and then call BA to link it?
Any help is much appreciated.
Thanks!