Airfares Gain Altitude

United Air's $50 hike is sticking as carriers swallow big fuel bills. Airline stocks, meanwhile, aren't helped by the increases

The big U.S. airlines appear to have successfully pushed through the largest fare hike in recent years, at least for now. United Air Lines imposed increases as high as $50 on long-haul round-trip tickets late on Mar. 13, with other airlines matching through the weekend. Low-fare airlines such as Southwest Airlines (LUV) and AirTran (AAI) did not follow suit, as is their custom.

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