Hi, need some expert help on a situation:-
1. purchased a reward flight on united from San Fran to Mexico. Booked it some time ago, and have the tickets.

2. am joining a connecting flight on ANA to Tokyo on the same day as it return from Mexico City...but only have 1 hour and 30 minutes.

Both airlines claim they can not put my baggage straight through, because the staralliance contract isn't signed.

ANA only have one flight a day, and reward booking on united are full.

I am also told I ahve to clear customs in San Fran.

1. Will I make in in 1 hour 20 minutes.

2. If I talk to united when I am in the US, will I be able to change the reward flight (an Ansett Australia reward flight).

3. Can I pay some extra and upgrade to business for the one leg (if required).

ANY help would be appreciated