There are essentially two ways a person can make their connecting flight bookings.
If you have purchased a single ticket, the connecting process is simple. In this scenario, your single ticket also serves as a connecting flight ticket. There may be two or more flights scheduled one after the other, but they have all been booked under one ticket.
On a single ticket basis, when you get to your layover destination after taking the first flight, all you have to do is proceed through the airport to your next flight’s departure gate. You won’t have to worry about your luggage as it will be automatically forwarded to your connecting flight/flights after you have checked in your luggage at the primary departure terminal. You can directly collect it when you arrive at your final destination.
However, if you have made separate connecting flight bookings, you will be required to collect your luggage at the layover point and check in again before proceeding to board your connecting flight.
Furthermore, international passengers may be required to present their VISA for the country from where they will be boarding the connecting flight. Even if you are merely collecting your belongings to check them in for the next flight and are not leaving the airport, practically, you have entered another country.
Also, keep in mind that in some cities, airport terminals are not linked and you may be required to travel to another terminal to board your connecting flight.
So, remember to inquire with your airline beforehand and double-check its VISA requirements before booking a separate connecting flight ticket