The recent schedule changes have left us with a 80 minute connection for JFK to LHR. Usually like more than that at JFK for an international flight. There is a Delta flight 2 hours later, and 2 additional VA flights. We are using GUC's so if we missed the connection would they but us on a Delta or VA flight in D1 if there are 2 open seats or does upgrade inventory need to be available?

Thanks