FlyerTalk Forums - View Single Post - TP 236 - why no great circle route
View Single Post
Old Sep 10, 2019 | 3:35 pm
  #6  
Efrem
FlyerTalk Evangelist
40 Countries Visited
3M
All eyes on you!
25 Years on Site
 
Join Date: May 1998
Location: Massachusetts, USA; AA 2.996MM & Plat Pro, DL 1MM, GM & Flying Colonel
Posts: 25,016
Almost certainly the jet stream on that specific day. The route of any long-distance flight can vary a lot from one day to another based on wind patterns.
Efrem is offline