Move or be hurled quickly through the air by aircraft (e.g. airplane).
Plural verb: to travel frequently by airplane or aircraft.
Gloss: NEW-YORK/\ IX1-loc FLY(aah) IX2-loc LONDON 7-HOUR/\ FLY.
English equivalent: The flying time from New York to London was seven hours.
Raise eyebrows for NEW-YORK and LONDON (topic). Mouth morpheme "aah" and slightly slower sign for FLY (first part).