Parties of children from three Shropshire schools on trips to New York are reported to be safe, well and in good spirits.
More than 80 pupils from Idsall School in Shifnal, Shrewsbury's Priory School, and Lakelands School in Ellesmere, now face a wait to learn when they can return to the UK.
Idsall School's chair of governors, Mark Blackstock, said:
Pupils have been encouraged to text message their parents to let them know that they are OK and we are speaking with the staff in New York to get as much information for parents as we can.
We appreciate parents may be worried, but we can assure them that the pupils are safe and in good spirits, with teachers following the appropriate advice from the New York authorities.
We will keep parents informed of any developments regarding flights back as there will inevitably be some disruption from so many cancellations taking place.