Passport Validity Checker
Many countries require your passport to stay valid for six months BEYOND your trip, and airlines enforce it at check-in. Thirty seconds now beats a ruined departure day.
Rules differ by country and by your nationality: some ask six months from ENTRY, some from departure, some only that the passport outlives the trip. Always confirm the official requirements of the country you are visiting and your airline before booking - this tool only flags the common cases.