Under U.S. law, travelers affected by the severed cable flight disruptions can claim a full cash refund, but rebooking first could void that right.
https://www.foxnews.com/travel/legal-expert-details-travelers-entitled-massive-east-coast-flight-cancellations
https://www.foxnews.com/travel/legal-expert-details-travelers-entitled-massive-east-coast-flight-cancellations