WestJet Airlines is facing significant operational disruptions as flight attendants initiate a strike over a pay dispute, leading to the cancellation of more than 300 flights nationwide. The strike began after failed negotiations between the airline and the union, prompting a 72-hour strike notice from the flight attendants. As a result, WestJet has grounded most of its flights, affecting thousands of travelers and leaving many in a state of uncertainty during the busy summer travel season. The airline has announced it will allow passengers to reschedule or cancel their flights without fees amidst the cancellations. Meanwhile, discussions between the airline and union representatives continue as both parties work towards reaching a new agreement.