Hess

No candidate in the table has Δhdg ≤ 25° from the current track of 103°, so the plane is likely still climbing and will turn toward a transatlantic route. The smallest Δhdg is LEMH at 40°, consistent with a great-circle heading from New York to the western Mediterranean. Recent flights show the aircraft flew KEWR→LEMH and then LEMH→LFMN, suggesting a pattern of European destinations after East Coast departures. EGLL is a recurring destination but has a larger Δhdg and no recent use. Past predictions have been wrong when guessing EGLL or OMDB, so I bias toward the recent Mediterranean route. Given the lack of alignment, confidence is lowered.