"For issues of safety and for issues of equity", the Greater Essex County District School Board has cancelled school trips to the U.S.
Superintendent Clara Howitt says the board may re-evaluate its decision at the end of February.
"We are revisiting, gathering more information to make informed decisions," she says.
Already a couple of trips to the Detroit-area have been cancelled.
"Two trips to the Holocaust Museum and one to the Detroit Opera House," says Howitt.
A trip to Washington in April was diverted because a large march is planned to take place in that city at that time.
Right now, those from seven Muslim-majority countries are being allowed into the U.S. A federal judge struck down an executive order to deny travellers from Libya, Somalia, Sudan, Yemen, Iran, Iraq and Syria. The 9th Circuit Court of Appeals upheld the judge's ruling, but U.S. President Donald Trump has vowed to take the case to the Supreme Court. If he is successful in America's highest court, the ban will be reinstated at all airports, sea and land crossings.
"We just didn't want to place our students in a scenario where we would have students turned back," says Howitt.
A spokesman for the Windsor-Essex Catholic District School Board, Stephen Fields says so far, his board is not considering a similar ban on fields trips across the border but admits it could be a topic of discussion at an executive meeting next week.
"We haven't discussed it. It's not on the radar at this time," says Fields. "But we may consider it at some point."
Both boards have students from a wide diversity of nationalities including the seven nations named in the travel ban.