[rob74]

So for London-Tokyo the return route is completely different from the outbound route? Fascinating! I guess that has something to do with the jetstream (which only helps you when travelling eastbound)?

[jamesharding]

Exactly that! This is the only route that I know of where this is the case.

Looks like today’s flight home is following that route: https://uk.flightaware.com/live/flight/BAW8/history/20250629...