Air Canada is rolling out flexible booking options and additional capacity for travellers at risk of disruption from a possible WestJet strike, as Canada’s second largest carrier warns of widespread flight cancellations heading into one of the busiest periods of the summer travel season.

Get the latest news straight to your inbox!

Air Canada steps in as WestJet strike threat looms

WestJet labour dispute raises risk of widespread cancellations

WestJet flight attendants have issued formal strike notice after negotiations with the airline’s management stalled, according to recent Canadian media coverage. The union representing cabin crew has signalled that a walkout could begin within days if there is no breakthrough at the bargaining table, prompting WestJet to begin preparing its network and parking some aircraft in anticipation of potential disruption.

Reports indicate that WestJet has already warned travellers to expect schedule changes and possible cancellations if a strike proceeds. The airline has been Canada’s main competitor to Air Canada on domestic and transborder routes, particularly in Western Canada, which means any large-scale disruption would ripple quickly across the country’s aviation system.

The timing of the labour action threat, coinciding with peak holiday travel and major events, has amplified concern among passengers. Travellers holding WestJet tickets for August departures are facing uncertainty over whether their flights will operate as planned or be removed from the schedule at short notice.

Air Canada opens up seats and flexible fares

In response to the mounting risk of cancellations, publicly available information shows that Air Canada has begun highlighting flexible booking options for travellers who may be affected. Coverage on aviation forums and in national news reports points to additional seats being made available on select domestic and transborder routes where WestJet normally carries a large share of traffic.

Air Canada is also promoting Economy fares that can be converted to future travel credits or, on some fare types, fully refunded if plans change. These options are being framed as a way for WestJet passengers to secure backup itineraries in case their original flights are cancelled, while still retaining some ability to adjust or cancel if the labour dispute is resolved and WestJet’s schedule stabilises.

Industry observers note that Air Canada has prior experience ramping up capacity and rebooking passengers during labour disruptions, including during its own flight attendant strike in 2025. That episode required the flag carrier to move quickly to restore operations and accommodate travellers stranded by cancellations, giving the airline a playbook it can now adapt to assist passengers displaced from a competitor’s network.

Temporary cooperation between rivals to protect travellers

According to detailed discussions on Canadian travel forums and strike information pages, WestJet and Air Canada have reached a limited agreement that allows some WestJet customers to be rebooked onto Air Canada services if their flights are cancelled by a strike. The arrangement, which observers describe as exceptional given the intense competition between the two carriers, is intended to prevent travellers from being left without options at short notice.

Reports suggest the cooperation focuses on routes and dates most at risk of disruption, particularly over the peak travel weekend identified in the strike notice. Where space is available, WestJet agents can move affected passengers to Air Canada flights without requiring travellers to book entirely new tickets themselves. The details of eligibility and routing vary by booking and fare type, and passengers are being advised to carefully review any emails or notifications from WestJet about changes to their itineraries.

Such carrier-to-carrier agreements are not uncommon during severe disruptions, but they are typically negotiated quietly and limited in duration. Aviation analysts quoted in recent coverage note that while the arrangement may ease pressure in the short term, overall capacity in the Canadian market remains tight, meaning not every displaced traveller will find an immediate alternative seat.

Options and rights for travellers facing disruption

Public guidance from consumer advocates and travel rights specialists emphasises that passengers affected by a WestJet strike should first monitor their booking closely through the airline’s website or app. If a flight is cancelled, WestJet’s usual practice is to offer rebooking on the next available departure, rerouting via alternative airports, or refunds in certain circumstances. Where the new cooperation with Air Canada is in place, some customers may be offered a seat on an Air Canada service operating at a similar time.

Canadian air passenger protection rules generally treat labour disputes as events outside an airline’s control, which means compensation for inconvenience or delays is limited. However, travellers may still be entitled to refunds if flights are cancelled and they choose not to travel, depending on the fare conditions and any special policies introduced for the strike period. Travel insurance that covers labour disruptions can also play a role, particularly for those with prepaid hotels, tours or connections on separate tickets.

For passengers opting to switch pre-emptively to Air Canada, travel experts writing in Canadian outlets recommend choosing fares that allow changes or credits, even if they come at a higher upfront price. This can reduce the risk of being locked into non-refundable tickets if the strike is averted at the last minute and WestJet’s operations continue more or less as normal.

Airports and airlines prepare for a busy, uncertain weekend

Major Canadian airports are preparing for a volatile period in which flight schedules may change rapidly. Operational updates indicate that ground handlers, security staff and customer service teams are being advised to brace for longer queues at check in and ticket counters as WestJet customers seek alternatives and Air Canada fields higher demand on overlapping routes.

On social media and aviation message boards, some Air Canada employees and frequent flyers are cautioning that transatlantic and popular domestic routes are already heavily booked for the August peak, which could make it difficult to find last minute seats if a full strike takes hold. Travellers are being encouraged to build in extra time for connections, avoid tight same-day itineraries where possible, and keep digital copies of their booking confirmations handy in case they need to be reprotected onto different flights.

While there remains a possibility that WestJet and its flight attendants could reach a settlement before the deadline, the preparation by both carriers underscores how seriously the industry is taking the current impasse. For travellers, Air Canada’s decision to offer additional options and cooperate on rebooking provides a partial safety net, but demand for any spare seats is likely to be intense until the labour situation becomes clearer.