Finnair, Airbus A321
Reg. OH-LZU
London, Heathrow - Helsinki
35.000 ft.
Swirling/Looping contrails, a phenomenon called crow instability. Most frequently seen in the wake of quad engine jets.
Reg. C-FGDZ
Montreal - Delhi
37.000 ft.
Flying above a very thin and hazy layer of cirrostratus. I actually got in touch with one of the pilots operating this flight, after posting the video to FB. He could confirm it was him, as the lower anti collision beacon was not working.
D-ABYO from Tokyo to Frankfurt, 35.000 ft. above Denmark.