In January 2006 80,6% of Air France flights left at prearranged time or within 15 minutes, while 80,8% of flights reached their destination on time (i.e. with 15 minutes maximum delay). Punctuality performance thus improved by nearly 7 points compared to December, despite unflattering weather conditions in Europe. External causes, as weather and Air Traffic Control (ATC), weigh on delay for a traffic...