Flights to and from Fort Lauderdale airport have been cancelled following the mass shooting Friday afternoon.
Hundreds of passengers ready to board their flights were turned around and left waiting at Pierre Elliott Trudeau Airport in Montreal.
Some told Global News they were forced to book hotels until the situation is resolved.
The two cancelled Air Canada flights were AC1608 and AC1608 scheduled for 4:15 p.m. and 5:50 p.m., respectively.
The airline is offering free re-booking for passengers who missed their flights.
Security at Montreal’s airport was also increased, an agent said that they were told to “be more vigilant.”
Montreal Police were on site with dogs checking for anything suspicious.