When you have a connecting flight, your journey is divided into "segments." If you booked the entire trip as a single ticket (one PNR), the process is relatively seamless: your checked luggage will usually be "checked through" to your final destination, and you won't need to see it during your layover (unless you are entering a country like the US where you must clear customs at the first point of entry). You will receive all your boarding passes at the initial check-in. Upon landing at your connecting hub, you simply follow the signs for "Flight Connections" or "Transfers" to find your next gate. However, if you booked separate tickets (self-transfer), you are responsible for collecting your bags, exiting the secure area, and checking in again for the second flight, which carries a high risk if the first flight is delayed. In 2026, most large airports have automated "Transit" corridors that allow you to skip security if you are coming from a "clean" airport. If you miss your connection due to an airline delay on a single ticket, the airline is legally obligated to rebook you for free and, in many cases, provide food and hotel vouchers.