Yes, you can technically sue an airline for lost luggage, but the process is usually governed and limited by international treaties like the Montreal Convention or domestic regulations (such as those from the U.S. Department of Transportation). As of 2026, these laws establish "maximum liability limits" that cap the amount an airline is required to pay, regardless of the actual value of your belongings. In the U.S., the limit for domestic flights is approximately $4,700 per passenger, while international flights are capped around $2,100 to $2,300. Before suing, you are required to exhaust the airline's internal claims process. Most successful legal actions are taken in "Small Claims Court" when an airline refuses to pay these established amounts or fails to reimburse for essential "interim" expenses. However, you generally cannot sue for "emotional distress" caused by the lost bag; the law treats the loss as a contractual and economic failure rather than a personal injury.