Reasons for Denied Boarding:
Overbooking: Airlines sometimes oversell flights to compensate for
no-show passengers. If all passengers show up, some may be
involuntarily bumped from the flight. Safety or Security Concerns:
Airlines may deny boarding for safety reasons, such as improper
travel documents, intoxication, or disruptive behavior.
Voluntary vs. Involuntary Denied Boarding:
Voluntary Bumping: If the airline asks for volunteers to give up
their seats, they may offer compensation, such as travel vouchers,
upgrades, or cash.
Involuntary Bumping: If there are not enough volunteers, airlines
may deny boarding involuntarily. In such cases, passengers are
entitled to compensation and other rights.
Compensation Entitlements:
EU Regulation 261/2004: In the European Union, passengers denied
boarding against their will may be entitled to compensation,
depending on the length of delay caused by rebooking:
€250 for flights up to 1,500 kilometers
€400 for flights within the EU over 1,500 kilometers and for other
flights between 1,500 and 3,500 kilometers €600 for all other
flights
US Department of Transportation (DOT) Rules: In the United States,
airlines must compensate passengers who are involuntarily bumped
from an oversold flight. The compensation depends on the length of
the delay and ticket price.