When flying internationally, passengers are often unaware of their rights in the event of delays, cancellations, or overbookings. Under international conventions such as the Montreal Convention, airlines must provide compensation for lost baggage and significant delays. In the European Union, Regulation EC 261/2004 grants passengers the right to financial compensation and meals or accommodation if flights are disrupted. Similarly, in the United States, airlines must offer rebooking or refunds when flights are canceled. Knowing these rights is essential for travelers to avoid exploitation and to demand fair treatment. Travelers should always keep boarding passes and receipts to support any claims. Airlines may resist payouts, but persistent follow-up and referencing legal frameworks significantly improve the chances of successful compensation.