JetBlue, US Airways and Spirit Airlines are offering waivers to customers who wish to reschedule their flights without the typical fee of up to $150. Other airlines are monitoring the storm and plan to update passengers later Friday.
Hurricane Sandy plowed through the Bahamas early Friday after leaving 38 people dead across the Caribbean. It could blend with a winter storm to produce a so-called "Frankenstorm" along the U.S. East Coast next week.
Those hoping to fly in or out of affected areas are asked to check their flight status before heading to the airport. To cancel, they should call the airline directly.