Air Canada and Air Canada Rouge have been grounded since Saturday due to CUPE's labour disruption.
The airline now estimates 500,000 customers' flights have been cancelled as a result.
Air Canada operations will be continuing, following Federal Government orders for the Canada Industrial Relations Board (CIRB) to arbitrate the dispute.
The B.C. NDP is promising millions of dollars in new investments in clean energy and climate programs if re-elected, while warning a Conservative government would roll back environmental protections.Â