Originally Posted by
elitetraveler
keep in mind Westbound flights from Europe during the summer might tend to run a bit ahead of schedule as the headwinds (West to East) across the Atlantic are considerably less during the summer.
True that westbound summer headwinds across the Atlantic are generally less than in winter, but the difference is also built into the schedule.
In other words, there is a better chance for an early arrival during the summer.
Maybe, maybe not...