If I-Dine runs all the airline dining-for-miles programs, do all the restaurants listed for a particular airline work for every airline? For example, I've registered my CCs to accrue USAirways miles. USAirways doesn't have an on-line listing of restaurants, but United does. Can I look at the United list, patronize one of the restaurants on it, and be sure I'll get my USAirways miles?

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MHT, BOS, PVD