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A sign directing passengers to the United States and the International arrivals hall is shown at Montreal Trudeau International Airport, Friday, March 20, 2020. THE CANADIAN PRESS/Graham Hughes
By The Canadian Press

U.S. customs causes cancellation of some flights departing from Montreal airport

Jul 29, 2026 | 8:48 AM

MONTREAL — Montreal-Trudeau International Airport says several flights to the United States were cancelled after U.S. customs authorities temporarily suspended their operations at the airport.

The airport says U.S. Customs and Border Protection halted operations because of a smell coming from construction materials.

According to the airport’s website, morning flights to Orlando, Washington, and Chicago were cancelled, but some other planes took off for destinations south of the border.

The airport says every effort is being made to resume activities as quickly as possible.

The airport is urging passengers to check the status of their flight with their airline before travelling to the airport.

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Major construction projects are underway at the airport as part of a long-term expansion aimed at increasing its capacity over the next decade.

This report by The Canadian Press was first published July 29, 2026.

The Canadian Press

by The Canadian Press

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