Notes:MMUN (Cancun, Mexico) - YOW (Ottawa, Ontario, Canada), FL 390. Jet stream was forecast for up to 220 Kts over the NE US today. The controller said that he had seen 220 kts earlier that night but it had dropped off for our return leg. I probably could have done a bit better at FL350 but the ride was not as smooth there.
Flight to Cancun from YOW was 4:48. Return only 3:11.