Two boys named Alistair Butt, one from Saskatchewan and one from Ontario, were stopped while trying to board flights last week because their name matches a name that appears on a no-fly list.

The Ontario boy, a 15-year-old from the Ottawa-area town of Orléans, was trying to check in to an Air Canada flight from Montreal to St. John's when he was told he couldn't board.

Alistair Butt of Orléans, Ont., was stopped while trying to board a flight last week in Montreal.
(CBC)

The Saskatoon boy, who's 10, was also told he couldn't get on an Air Canada flight, although it is not clear what airport he was stopped at.

Both boys were eventually allowed to board, once they were cleared by security after long delays, but their families fear they will face the same problem every time they try to fly.

"Canada is telling him he's guilty until proven innocent every time he flies," the Ontario boy's mother, Heather Butt, told CBC News.

Heather said an airline official at the airport could not say what no-fly list her son's name is on, and how to get it off.

"We said, 'What do we do?' and then, much to our amazement, she said we could possibly change our child's name," Heather said.

Transport Canada won't confirm if the boys are on a United States no-fly list, an airline no-fly list or Canada's new no-fly list, which went into effect on June 18.

Canada's list, believed to contain fewer than 1,000 names, is operated by Transport Canada. All domestic airline passengers' names are checked against a list of people deemed to be threats.

The list is not available to the public, which means those on it will only find out when they try to travel.

Transport Canada advises families to appeal

Allan Kagedan, a Transport Canada spokesman, advised the Butt families to appeal to the organizations operating all three lists.

"You can approach all three, I suppose, and they can guide you in terms of doing what's needed to try to avoid problems in the future," he said.

He would not confirm which list contains the Alistair Butt name.

Air Canada said it's working hard to prevent delays to passengers and stressed that both boys were eventually allowed on their flights.

"We regret any inconvenience, but security must remain of paramount concern," the airline said in a statement.

Ontario's Alistair Butt, a top student who has won community service awards, said the whole ordeal has angered him.

"I'm accused of something I didn't do. It's not me. I have the same name, that's it."