Originally Posted by
Ldnn1
But worth adding that if the OP had already failed to board the DUB-LHR flight, at some point following that he would have been offloaded from LHR-DXB, his BP would have become invalid and he would not have been allowed entry to security if he were trying at that point. Is that correct?
Yes, I should have added something along those lines. If you miss the DUB-LHR flight the rest of the ticket will be cancelled. I am not sure whether that would happen quickly enough to kick in prior to boarding the LHR-DXB so possibly that would only have happened after the LHR-DXB flight departed, although the OP would then have been stranded in DXB with no valid inbound flights.