Originally Posted by
redondo-beach
that would help
one question is do all the airlines in the same Alliances have to accept the miles from another member of the same Alliance or can they save the seats for their customers only ?
RB
Yes. Generally speaking, award seats on one airline can be redeemed by any other mileage program in the same alliance (plus any other airlines that may be partners).
Occasionally, an airline may choose to make more seats available to its own members, but even that only applies to a minority of seats available.