the best thing to do is once you get the tickets issued call up each airline and make some change to your booking (i.e. a meal req or something) and ask them to create a new record in their system (you will have to ask them to do this and come up with an excuse). this would cause the other airlines to "lose track" of your booking. and when you arrive at the airport for boarding the gate agents are usually least concenred about something that looks wrong but was on a diff airline. i've done this a couple of times on exactly the same thing you propose (i.e. US - LHR but instead i did a YYZ - IAD- LHR - BCN which ended up being @ 2000 cheaper) and it worked out fine. with full fare first class tickets i think the airlines are a little less interested in upsetting the passenger


anyways - good luck


[This message has been edited by indogulf (edited 05-07-2000).]