Originally Posted by
moondog
Don't be so sure about that. Your situation is very common, and I only know of a handful of cases in which people were taken to the cleaners.
I have some ideas (e.g. buy F on that domestic flight, book a ticket all the way to your destination), but would need to know more info about your specific circumstances in order to opine fully.
I am booking two award bookings. One with Star Alliance and another with Skyteam. I only have enough miles for economy with Skyteam.
That said I will have the same problem on the way back where I will be having a few day stop over in Shanghai. My total baggage weight should be less on the way back but it is going to be more than 20kg.