Winter Storm Nemo is set to rage across the north-east of the United States and parts of Canada, delaying and causing the cancellation of many flights.
Many airlines are allowing customers to initiate travel changes ahead of the harsh winter storm.
Over 1,100 Friday flights have already been cancelled from numerous airports in would-be affected areas, weather.com reported.
Almost half of those flights grounded were at Newark Liberty International Airport in New Jersey.
Delta Airlines-ticketed flights to, from or through affected cities between 8 – 9 February are permitted to make a one-time rebooking for travel before or after their original travel dates, as long as the new flights are ticketed and rescheduled to travel by 12 February 2013.
American Airlines and Jet Blue are offering their customers similar remuneration, as long as their original ticket was issued prior to 6 February 2013.
United Airlines, Southwest Airlines and US Airways are also permitting schedule changes for customers.