If you miss a connecting flight in Europe, your rights and the outcome depend heavily on whether your trip was booked as a single "through" ticket and if the delay was the airline's fault. Under the European EU 261/2004 (and the UK's version, UK261), if the missed connection is due to a delay on the first leg operated by a European carrier, the airline is legally required to rebook you on the next available flight at no extra cost. Furthermore, if the delay results in you arriving at your final destination more than three hours late, you may be eligible for financial compensation ranging from €250 to €600, provided the delay wasn't caused by "extraordinary circumstances" like a strike or extreme weather. The airline must also provide "duty of care," which includes food vouchers and, if the next flight is the following day, overnight hotel accommodation and transport. However, if you missed the flight due to your own delay at security or if you booked two separate tickets (a "self-transfer"), the airline has no obligation to help you, and you will likely have to purchase a new "standby" or "last-minute" ticket at the current market price.