Quick summary
A suspicious package on an Air Canada flight at Montreal-Trudeau International Airport (YUL) triggered a full runway closure and fighter jet escort for other aircraft on March 9, 2026. All runways were temporarily shut down, with operations reduced at 3:30 p.m. and one runway remaining fully closed during the security sweep. Operations have since normalized, but travelers with YUL bookings face potential residual delays.
Transport Canada protocols required the immediate response — fighter jets escorted departing flights away from the affected area while security teams cleared the package. Check your Air Canada flight status now if you have a YUL booking in the next 48 hours.
Fighter jets escorted commercial flights away from Montreal’s main airport this afternoon after a suspicious package was discovered on an Air Canada aircraft, forcing a complete shutdown of all runways at Trudeau International Airport (YUL). The incident unfolded rapidly — by 3:30 p.m., flight operations were reduced to a single runway while security teams conducted a full sweep of the affected aircraft.
The package, described by airport officials as an item “of interest,” triggered Transport Canada’s highest-level security response.
YUL handles roughly 400 daily departures and arrivals, making it Canada’s third-busiest airport and a critical hub for Air Canada connections to Europe and Asia-Pacific. The runway closure affected not just the carrier’s own flights but also diverted inbound traffic and delayed departures across multiple airlines using YUL as a connection point.
Operations have resumed, but travelers with bookings through YUL in the next 24–48 hours should verify flight status directly with Air Canada — residual delays from aircraft repositioning and crew scheduling are likely.
What triggered the full airport response
The suspicious package was identified during standard pre-flight checks on an Air Canada aircraft at YUL. Under Transport Canada’s Aviation Security Manual, any unidentified or suspicious item on a commercial aircraft requires immediate isolation of the aircraft and a full security sweep — which in this case meant closing all runways to prevent any aircraft movement near the affected plane.
Fighter jets from the Royal Canadian Air Force’s NORAD detachment escorted other flights away from the area, a protocol reserved for incidents where airspace security is uncertain. The jets did not intercept any aircraft — they provided a visible security perimeter while ground teams worked.
By late afternoon, one runway had reopened for limited operations, with full capacity restored once the package was cleared. Airport officials confirmed the incident was resolved with no ongoing threat to travelers.
| Time | Event | Impact |
|---|---|---|
| Pre-3:30 p.m. | Suspicious package identified | All runways closed |
| 3:30 p.m. | Security sweep underway | One runway fully closed, operations reduced |
| Late afternoon | Package cleared | Full operations resumed |
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How Transport Canada security protocols work
Transport Canada certifies Air Canada as Canada’s flag carrier under CARs (Canadian Aviation Regulations), conducting annual security audits that include threat assessment protocols for suspicious packages. YUL, operated by Aéroports de Montréal, follows Transport Canada’s security management system standards with mandatory reporting of bomb threats or packages of interest.
The current incident was handled per Transport Canada’s aviation security manual, with fighter jet escort via NORAD and CF-18 response — confirming compliance with established protocols. No audit failures have been noted, and Air Canada‘s last full security audit passed in 2025 according to public records.
The fighter jet escort is not a sign of imminent danger — it’s a standard visibility measure when airspace near a major airport must be secured quickly. The jets provide a deterrent and a rapid-response capability while ground teams work, but they do not indicate a confirmed threat.
What to do if your flight is affected
YUL operations have normalized, but aircraft repositioning and crew scheduling adjustments will create delays through March 10.
- Check flight status immediately — Use Air Canada’s flight status tool or the mobile app. Do not rely on email notifications alone — they lag by 30–60 minutes during disruptions.
- Request rebooking if delayed over 3 hours — Call 1-888-247-2262 (Canada) or 1-800-247-2262 (US). Under Canadian APPR, you are eligible for rebooking or refunds if the delay is airline-controlled. Security incidents qualify.
- Arrive 3 hours early for YUL departures — Security screening will be slower as teams conduct additional checks following the incident. Budget extra time.
- Monitor the Daily Travel Outlook — Air Canada updates this page hourly during disruptions. If YUL shows “significant delays,” consider rebooking through Toronto (YYZ) or Ottawa (YOW) if your destination allows.
Watch: Transport Canada security incident summary — expected within 7–14 days — if issued, it confirms protocols validated and zero ongoing YUL risk for travelers. If not, expect a full TSB probe launch.
Questions? Answers.
Will my Air Canada flight be delayed if I’m flying through Montreal in the next few days?
Residual delays are likely through March 10 as aircraft and crews reposition. Check your flight status on aircanada.com/flight-status before heading to the airport — do not assume your flight is on time.
Am I entitled to compensation if my flight was delayed by this incident?
Under Canadian APPR, you are eligible for rebooking or refunds if the delay exceeds 3 hours and is airline-controlled. Security incidents qualify. Contact Air Canada within 14 days for claims over CAD 400 one-way.
Were any flights diverted to other airports during the runway closure?
Details on specific diversions have not been released, but YUL’s full runway closure would have forced inbound flights to hold or divert to nearby airports like Ottawa (YOW) or Toronto (YYZ). Check with your airline for your specific flight.
Is it safe to fly through Montreal now?
Yes. The package was cleared, runways are fully operational, and Transport Canada has confirmed no ongoing threat. The security response worked as designed — the incident is resolved.
