<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by daniellam:
They print either "X" or "O" beside (to the left of) the departure and arrival cities of each flight coupon. "X" means "connection" and "O" means stopover.
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Not necessarily. As the only limitation on stopovers vs. transit is in the continent of origin not all tickets will have the x/o indicator. I just finished a RTW, hand written by AA, without any indications on connections vs. stopovers.
So long as you are not exceeding the limitation on stopovers in the originating continent, I don't see why there should be a charge, as you are only doing a date/time change.