Yes, you can sue an airline in Canada for lost luggage, but the process is governed by specific legal frameworks like the Air Passenger Protection Regulations (APPR) and the Montreal Convention. Before suing, you must file a formal written claim with the airline within 7 days for damaged bags and 21 days for lost or delayed bags. In 2026, the maximum liability for a lost bag in Canada is approximately $2,300 CAD (which includes the refund of any baggage fees). If the airline denies your claim or offers an unfair settlement, your first step should be filing a complaint with the Canadian Transportation Agency (CTA). If that fails, you can take the airline to Small Claims Court in your province. Success in court usually requires documented proof of the bag's contents (receipts or photos) and evidence that the airline failed in its "duty of care." Most cases in 2026 are settled through the CTA’s expedited dispute resolution process rather than a full trial.