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flyfresno
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Round trip routes where both legs travel the same direction

Tue Dec 29, 2020 1:27 am

I noticed that both legs of China Southern's CAN-YYZ-CAN and CAN-JFK-CAN routes travel eastbound (the flights from YYZ and JFK to CAN both head NE up close to the North Pole before coming down SE bound over Russia and Mongolia, from CAN to both of these cities, flights are over the Pacific). Singapore's SIN-JFK-SIN routes do the same (even more pronounced). That got me wondering, other than the East Coast of the US to East Asia, what other routes around the world have flights that travel the same direction on both legs?
 
as739x
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Re: Round trip routes where both legs travel the same direction

Tue Dec 29, 2020 1:51 am

Qatar 737/738 the new service Doha-San Francisco seems to reverse route
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hoons90
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Re: Round trip routes where both legs travel the same direction

Tue Dec 29, 2020 1:54 am

This happens quite often on HKG-YYZ-HKG and DEL-SFO-DEL.
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TheWorm123
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Re: Round trip routes where both legs travel the same direction

Tue Dec 29, 2020 9:17 pm

Flights between UK and the Canary Islands more or less follow the same right in either direction, they fly off the coast of Ireland, France, Portugal and then Morocco all the way and the same on the reverse.

I can’t say why but they spend 90% of the flight over water I’d estimate.
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PlymSpotter
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Re: Round trip routes where both legs travel the same direction

Tue Dec 29, 2020 10:51 pm

I recall SQ's SIN-EWR-SIN flight would often take an Easterly routing on both flights. It was quite surprising to look up and see a SQ A345 flying over Devon in the South West of England!

TheWorm123 wrote:
I can’t say why but they spend 90% of the flight over water I’d estimate.

In many cases water is free - no overflight fees to pay.
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dfwjim1
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Re: Round trip routes where both legs travel the same direction

Tue Dec 29, 2020 11:21 pm

as739x wrote:
Qatar 737/738 the new service Doha-San Francisco seems to reverse route


This seems like the kind of flight that could either go west or east from both origin cities depending on the winds.
 
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aemoreira1981
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Re: Round trip routes where both legs travel the same direction

Wed Dec 30, 2020 1:55 am

Before the pandemic suspended the route (it has not returned), MF849/850 both traveled due east...849 went TPAC while 850 went TATL. I would imagine tail winds have a lot to do with it.
 
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zeke
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Re: Round trip routes where both legs travel the same direction

Wed Dec 30, 2020 4:13 am

PlymSpotter wrote:
In many cases water is free - no overflight fees to pay.


Nope, mainly still receive air traffic services which are paid for.
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Philippine747
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Re: Round trip routes where both legs travel the same direction

Wed Dec 30, 2020 7:52 am

Air India's BOM-SFO goes over the Pacific on the outbound leg, then over the Atlantic on the return leg. PR's MNL-Toronto/New York flights sometimes take a polar routing as well....
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PlymSpotter
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Re: Round trip routes where both legs travel the same direction

Wed Dec 30, 2020 10:21 pm

zeke wrote:
PlymSpotter wrote:
In many cases water is free - no overflight fees to pay.


Nope, mainly still receive air traffic services which are paid for.


In this case using Shanwick and Santa Maria offers a significant reduction in said fees. IIRC Shanwick is about 1/20th of London's charge, and Santa Maria is a fraction of Portugal's. This is why flights to the Canary Islands from Northern Europe will often hug the edge of these airspaces.
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bfitzflyer
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Re: Round trip routes where both legs travel the same direction

Thu Dec 31, 2020 12:33 am

Philippine747 wrote:
Air India's BOM-SFO goes over the Pacific on the outbound leg, then over the Atlantic on the return leg. PR's MNL-Toronto/New York flights sometimes take a polar routing as well....


Air India doesn't fly BOM-SFO. You must mean DEL-SFO.
 
ChrisKen
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Re: Round trip routes where both legs travel the same direction

Thu Dec 31, 2020 12:41 pm

PlymSpotter wrote:
zeke wrote:
PlymSpotter wrote:
In many cases water is free - no overflight fees to pay.


Nope, mainly still receive air traffic services which are paid for.


In this case using Shanwick and Santa Maria offers a significant reduction in said fees. IIRC Shanwick is about 1/20th of London's charge, and Santa Maria is a fraction of Portugal's. This is why flights to the Canary Islands from Northern Europe will often hug the edge of these airspaces.


They may save a few quid but the main reason is the avoidance of the congested airspace of Western European landmass. There are less delays and restrictions with the off-coast routing.
The North/South with dogleg routing also tends to be more favourable with regards to winds.

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