If you have travel plans this weekend and don’t necessarily need to travel, you may be in luck.

A massive winter storm is forecasted this weekend—dubbed Winter Storm Fern by the Weather Channel—and could bring crippling ice and heavy snow to more than 30 states stretching from Arizona to Maine. With some 230 million Americans potentially affected, many airlines are preemptively warning travelers about potential weather-related disruptions and offering travel waivers in advance.

The major U.S. carriers have issued alerts to........

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