Airline complaints generally arise out of problems experienced during air travel that were left unresolved.
[4] In Europe, air passengers have more rights than in the US and must be compensated by law for overbookings, cancellations or flight delays.
[7] US Airways is also the US airline with the worst on-time performance, which might explain its rate of complaints.
In the European Union, several member countries do not have specific offices to handle airline complaints.
[9] However, the Air Transport Portal of the European Commission handles airline complaints from member countries.