AKE0404AR From United States of America, joined May 2000, 2535 posts, RR: 40
Reply 1, posted (15 years 5 months 1 week 14 hours ago) and read 2336 times:
Just an idea;
It could also be due to strong head winds over the atlantic.
Westbound traffic is always trying to avoid the jetstream and eastbound traffic is taking advantage.
I flew SQ 744 on Dec 24th JFK - FRA 5 hrs and 20 min. ( tail winds up to 180kts )
the return leg was 8.40 min we went way up north to avoid the jet stream.
B727-200 From Australia, joined Nov 1999, 1051 posts, RR: 2
Reply 2, posted (15 years 5 months 1 week 12 hours ago) and read 2310 times:
Jetstream winds are a factor throughout all temporate zones of the earth during the respective winter months (usually somewhere between about 30-50 degrees both Northern and Southern Hemispheres). Winds can exceed 200kts quite regularly. In the Southern Hemisphere the strongest winds are in September/October.
ScottB From United States of America, joined Jul 2000, 7347 posts, RR: 30
Reply 3, posted (15 years 5 months 1 week 12 hours ago) and read 2305 times:
The jetstream winds are definitely a factor in the United States. The flight from Boston to Houston is normally a bit under four hours, but I was once on a flight during November which was over five hours - in an MD-80, at that. I couldn't wait to get out of that plane!
Whenever the weather is cold in Houston, I know to expect a long flight from Boston.
Ake0404AR From United States of America, joined May 2000, 2535 posts, RR: 40
Reply 5, posted (15 years 5 months 1 week 8 hours ago) and read 2281 times:
What I heard about flying up there, you don't even have any disturbance like turbulence etc.....I am not too sure about the wind though.
They probably still have winds up there as the record for NYC - LHR is set at 2 hrs and 52mins and wind must have helped to establish that record.
Raddog2 From , joined Dec 1969, posts, RR:
Reply 6, posted (15 years 5 months 1 week 8 hours ago) and read 2267 times:
How do airlines predict jetstreams and flying times? I just booked a RT BOS-SFO SJC-BOS around Xmas, and the westbound is scheduled for 7 hrs, while the eastbound is 5 hrs 20 mins. I checked on the flight schedule, and the BOS-SFO run is only 6:30 or so before Dec. 15 and after Jan. 25 or something like that. Are they beefing up flight times to accomodate the holiday rush? Or do they think the jetstream will be especially strong from mid-Dec to late Jan?