Aviation Airlines allow free changes to Brussels itineraries March 22, 2016 Share 1 -- The big three U.S. airlines have issued travel policies for customers with reservations to Brussels, where the international airport is closed indefinitely after the terrorist attack Tuesday morning.Travelers booked for travel to or through Brussels until March 29 on American or its partners British Airways or Iberia can rebook tickets for free. The new itineraries can include destination changes to Amsterdam, Dusseldorf, Frankfurt, London or Paris and can be flexible through April 12. Travelers booked on Delta or Delta-coded flights that either connect or terminate in Brussels, Amsterdam or Paris from today though March 31 can make a one-time itinerary change free of charge. The change must be made by March 27 for travel that begins no later than March 31. Travel rescheduled for beyond March 31 won’t be subject to a change fee, but a fare difference may apply. All travel must be completed one year from when the ticket was issued. In addition, travelers whose flights are canceled or significantly delayed are entitled to a refund. United is waiving change fees for customers scheduled to fly to or through Brussels from today through Thursday. Flights must be rescheduled for a departure of no later than April 1 and must be to the same destinations in order to not be charged for differences in fares. Travel rescheduled for after April 1 won’t be subject to the change fee, but the fare difference may apply. All travel must be completed one year from when the ticket was issued.