Airline Operations Many reasons can cause delays Severe weather conditions, unexpected aircraft and personnel failures, congested traffic, etc Delays may propagate through the network Long delays and cancellations cause schedule disruptions Airlines must reschedule aircraft/crew and re accommodate passengers Huge revenue loss: Delays cost consumers and airlines about $6.5 billion in 2000(Air Transport Association)4 Airline Operations Many reasons can cause delays ➢ Severe weather conditions, unexpected aircraft and personnel failures, congested traffic, etc. Delays may propagate through the network Long delays and cancellations cause schedule disruptions Airlines must reschedule aircraft/crew and re￾accommodate passengers Huge revenue loss: ➢ Delays cost consumers and airlines about $6.5 billion in 2000 (Air Transport Association)