WestJet flight attendants and the airline have issued opposing 72-hour strike and lockout notices following a breakdown in contract negotiations.

The dispute threatens to disrupt travel across Canada if a resolution is not reached before the weekend. Because flight attendants are essential for aircraft operation, a work stoppage would likely ground a significant portion of the carrier's fleet.

The union, which represents approximately 4,400 members [1], issued a 72-hour strike notice early Thursday morning [2]. WestJet responded by issuing its own 72-hour lockout notice [3].

According to the notices, a lockout could begin at 12:01 a.m. Mountain Time on Sunday [4]. The timing puts the airline at risk of operational failure during a high-traffic period.

The two sides remain far apart on key contract issues [5]. While specific terms of the disagreement have not been detailed in the notices, the industrial action threat follows a period of stalled negotiations regarding working conditions, and pay.

WestJet has not provided a detailed public response to the specific demands of the union, but the lockout notice serves as a preemptive move to control the timing and nature of a potential shutdown [3]. The union's decision to strike indicates that the 4,400 members [1] believe collective action is the only remaining lever to secure a favorable agreement [5].

Travelers are advised to monitor their flight status as the Sunday deadline approaches. The potential for a lockout remains high unless both parties reach a tentative agreement in the coming days.

WestJet flight attendants and the airline have issued opposing 72-hour strike and lockout notices.

The simultaneous issuance of strike and lockout notices suggests a complete collapse of trust between WestJet management and its cabin crew. By issuing a lockout notice immediately after the strike notice, WestJet is attempting to seize control of the narrative and the timing of the disruption. If no deal is reached by Sunday, the airline faces a critical staffing shortage that could lead to widespread cancellations, impacting thousands of passengers and causing significant revenue loss during a peak travel window.