Originally Posted by
David-A
If however you are talking about trying to do a turn around on the same aircraft. Most well behaved booking system will refuse. You will either need to split ticket (not wholy advisable, but depends on your risk attitude), or book elsewhere or on the phone (obviously without your shareholder discount).
aa.com is fine - you can book multicity, LGW-AMS then AMS-LGW, and it doesn't impose any MCT. Of course, if you're doing a proper mileage run with various other destinations, e.g. LGW-AMS-LGW-JER-LGW-EDI-LGW, then you omit the LGWs in the middle (because you can't ask it for a multicity trip where you return to the starting point in the middle; and it recommends the connections in LGW for you).