Meanwhile, Hamilton Air Traffic Controllers have bought pizzas for those in Buffalo.
Many Canadians have reacted with surprise to what they consider as the seemingly endless drama of the Trump administration, including the investigation of the special attorneys of President Donald Trump and the aggravating trades negotiations between Canada and the United States.
Now, the US government is partly closed, trapped in a political dispute to secure money for a wall on the southern border that Trump wants to help keep migrants away.
Many Canadians have tried to avoid similar behavior to a non-Canadian, such as overflow. But with pizza deliveries, they seemed to be based on their relative serenity and another moment of welfare that reaffirmed their humanism.
"Diplomacy of pizza", eh! "Ankur Chhabra, an economist who studies public health in Toronto, wrote on Twitter." Proud to be in a country so full of love and respect for everyone. Our neighbors in the south need to imbibe it more often, I suppose. "
"That's why the world loves Canada," wrote a businessman identified as KC on Twitter.
"This is love," added The Toronto Star.
In the United States, where about 10,000 air traffic controllers have been working without pay, the reaction was also effusive.
In the ATC reports, a Facebook page run by an old air traffic controller that helped pizza gifts to earn worldwide attention, there was a gratitude tour of Canada.
Among those who commented it was Chris Taylor, who greeted the country for climate warming, socialized medicine and maple syrup.
"I know I'll vote for the next elections," he wrote. "Canada!"
A Twitter user identified as "Calling Myke" wrote that he was very grateful for the "extremely friendly gesture of buying pizza while our own government does not pay us." He added: "I might have to cheer up a Canadian hockey team."
"O, Canada, we do not deserve," added George Capen, a veteran of the United States based in California.
Duffey noted that air traffic control was among the most stressful jobs and that Canadians, who work closely with Americans to ensure the safety of American airspace, hoped the pizza would encourage them.
"In our business it must be 100 percent correct, 100 percent of the time, and there is no place for mistakes," he said. "Now, in addition to that, people have to come to work and worry about the added stress of paying off their mortgages or putting food on the table."
The Canadians, he added, had shown humanity in times of crisis in the United States, even during the terrorist attacks of September 11, 2001, when the citizens of Gander, Newfoundland, hosted and fed about 6,700 People after US airspace and 38 aircraft were forced to land in the small Canadian city of 10,000 people.
His willingness to accommodate those who were stranded captured the global imagination and inspired a musical from Broadway, winner of the Tony Award, "Come from Away."
United States pilgrims have even traveled to Gander to meet "nice people."
Canadian air traffic controllers were not just about expressing solidarity with their counterparts across the US through pizza offers. The controllers at the base of the Irish Aviation Authority in Shannon did the same, ordering six great cakes for workers from Westbury, New York, as reported by the media in Ireland. Sun Irish said that the Italian restaurant Borrelli Cafe and Pizzeria delivered empanadas on Sunday night.
With files by Iain Colpitts, Mississauga News