mortenbaek From Denmark, joined Sep 2007, 42 posts, RR: 0 Posted (7 months 2 weeks 1 day 14 hours ago) and read 2585 times:
I noticed how tonight's (and I believe I have seen it before, too) DY7201, OSL-BKK has taken a somewhat southernly route. As far as I can tell, the flight seems to deliberately avoid Russian airspace. Any insights?
Viscount724 From Switzerland, joined Oct 2006, 24061 posts, RR: 23
Reply 1, posted (7 months 2 weeks 1 day 10 hours ago) and read 2509 times:
I think Russia still has high overflight/ATC charges. Some carriers probably prefer to take a routing that avoids Russia to reduce their costs. Also have to consider winds, weather, fuel consumption etc. as it may sometimes be cheaper to pay the fees if a shorter flight time saves enough fuel to compensate. Flight planning computer programs normally consider all those factors when choosing a route.