Smoke reports on the evening of October 20, 2026, prompted the evacuation of the apron management unit tower at Toronto Pearson Airport, resulting in flight delays on October 20 and 21. The apron management tower oversees the movement of aircraft at gates and loading zones around the terminal and is operated by the Greater Toronto Airports Authority (GTAA).
Following the evacuation, Toronto Pearson Airport staff returned later the same evening and resumed apron management operations. However, an air traffic management initiative was implemented after the tower reopened, further contributing to delays affecting arriving and departing flights at the airport, Canada’s
busiest and main international gateway.
Separate Towers Manage Different Airport Operations
The apron management tower operates independently of the main air traffic control tower at Toronto Pearson, which is run by NAV Canada. NAV Canada’s tower ensures the safe movement of aircraft in the air and on runways and taxiways. Unlike the apron management unit, NAV Canada’s control tower was not evacuated during the incident and maintained normal operations. Communications between pilots and NAV Canada air traffic controllers remained uninterrupted throughout.
This distinction meant that while the ground-side flow of aircraft at gates was disrupted, pilot-controller radio communications for aircraft movement on runways and taxiways were
unaffected during the evacuation.
Official Statements from NAV Canada and Air Canada
NAV Canada spokesperson Gabriel Bourget confirmed the air traffic control tower’s continued operation and stated that communications with pilots were not impacted. He clarified that the evacuation related solely to the apron management tower operated by GTAA.
Air Canada characterized the event as a “safety incident” involving the GTAA apron management unit and said it was affecting multiple flights beyond Air Canada’s control. The airline said it was actively working to minimize delays caused by the situation.
Toronto Pearson Airport confirmed that operations at the apron management tower resumed on the evening of October 20, 2026,
but acknowledged that the subsequent air traffic management measures led to ongoing flight delays on October 20 and into October 21.
Passenger Impact and Airport Advisory
Passengers traveling through Toronto Pearson Airport experienced delays tied to the evacuation and resulting operational disruption at the apron management tower. The airport advised travelers to verify the status of their flights directly with their respective airlines due to the delays affecting both arrivals and departures.
The incident highlights how apron management, responsible for aircraft movement around gates, can disrupt airport operations independently of the main air traffic control system, impacting overall flight schedules at a major international hub.
