As Boeing 777 200LR seems to have longest range so far in IF. I have decided,
Why not do a full range flight around the earth with same heading at 90 degrees.
And I did successfully completed 26 hours flight from Toronto (CYYZ) to Toronto (CYYZ)
Flight route: Toronto to Toronto, with 90 degree heading only
Flight time: 6 AM EST 11 July
Arrival time: 8 AM EST 12 July
Flight duration: 25 hours 58 mins