attorney28. Not sure now on WHAT thread to answer your query. (

)
I know for sure that using UNITED miles to book a Star normal award
you may change DATES at will. ROUTING or CARRIER changes incurs a small charge. Never booked a Star RTW award so not certain if THEY preclude date changes.
Joh and I are flying to Madrid next month via BKK on Thai business class and for example have changed dates 5 times so far. All changes necessary to dodge those 1980s museum piece [in C and F seats/facilities] 747s that TG mostly run.
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Glen ~
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