Air Canada and United Airlines have agreed to renew and expand their Canada-U.S. joint venture, which has operated since 2022 and remains subject to approval from Canadian authorities. The airlines are seeking to add 10 routes to the partnership, including Montréal-Chicago, Montréal-Washington, Ottawa-New York, Toronto-San Francisco and Vancouver-San Francisco. Transport Canada is conducting a public interest assessment and will accept public comments through Nov. 15. Air Canada will launch Toronto-Louisville, Montréal-Indianapolis and Edmonton-Newark services for summer 2027, while deploying a larger Airbus A220 on its Edmonton-San Francisco route. United will add seasonal Newark-St. John’s service, introduce Denver flights to Ottawa and Québec City, increase Washington, D.C.-Québec City service and raise daily Denver-Winnipeg seats by 65%. The carriers said the expansion is designed to support business and leisure travel and strengthen connections from U.S. cities through Air Canada’s Canadian hubs to destinations in Europe and Asia. The filing comes as cross-border demand has softened and Canada-U.S. trade and travel relations face pressure.