Passengers on a new Delta Air Lines, created by a proposed merger with US Airways, would see higher fares and fewer flight choices in some markets, travel experts say.
But frequent fliers could combine their mile credits from each carrier and use them to fly free to more destinations, especially overseas.

"When two airlines merge, you get an enlarged route network, which means frequent fliers have more opportunities to earn miles and redeem them," said Tim Winship, contributing editor for

At the time of US Airways' recent bid, CEO Doug Parker said frequent fliers would combine their mile credits of US Airways' Dividend Miles program with those of Delta's SkyMiles program. Their choices of destinations would expand to 350 worldwide from US Airways' 234 cities, including Europe, and Delta's 306 on five continents.

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