Some airline tickets are sold at a good discount, but there is one caveat: they cannot be exchanged or refunded in an emergency. The same is true for some round-trip tickets. Sometimes airlines sell more tickets for that flight than seats on the plane, as passengers with such tickets do not arrive on a flight. Therefore, you may not be allowed to board the plane with tickets in hand.
There are two ways to find out about overbooking. The first is to call the airline, and the second is to ask about it at the check-in counter. Also, a sign that you’ve overbooked may be the inability to check in online or choose your seat and get a boarding pass.
If you encounter an overbooking, you must notify the airline. Most often in this case, passengers with tickets in economy class (if available seats) are in business class. Another airline may be trying to fix the problem to find those who want to fly with various privileges on the next flight. The third option is to pay compensation to passengers. In addition, overbooking occurred due to the unexpected breakdown of the aircraft, since you had to fly on a less spacious ship.
Source: Ferra
