We were told by the travel agent that booked our end-of-year group ticket that we could not use that ticket for the flight we needed now.
However, we called the airline directly and gave them the reservation number, and they changed the return date for tomorrow at no cost!
If you have a return ticket booked for your child in Eretz Yisroel for the end of the year, even if it was made through a group ticket, call the airline if you want to change for an earlier flight. There could either be a minimum fee or no fee at all.
Many people are being told they can’t use that return ticket and it’s not true.
El Al # 1-800-766-3525
(NOTE: TLS has confirmed the above with the writer.)