Originally Posted by
KenJohn
Unless using Amex 2-4-1, I have always learnt to book 2 one-ways not a return to give the required flexibility.
Also if you have a trip to somewhere is Europe, you can get USA-LHR-XXX with a long stopover in LHR for no extra miles.
Is that only good for From USA bookings. I have a 2-4-1 Amex Booking LHR-MRU. Is there any chance to add HEL-LHR to this booking with a bit of extra miles?