Tracked live by the FAA, but its flight plan was first seen after takeoff, so we don't know the scheduled time and can't say whether it's late.

DELTA · FLIGHT DL 46 IN THE AIR (OFF 12:05 AM ET, ETA 11:20 AM CET) · SCHEDULED TIME UNKNOWN
Today

DL 46 · JFK → AMS

took off 12:05 AM ET · expected to land 11:20 AM CET (scheduled time unknown)
Forecast issued Tue 2:00 AM ET · 2h after departure

Odds over time

Arrive at AMS more than 15 minutes late?
11% chance · ±1 pts −3 pts · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
MOSTLY HISTORY WEATHER FORECASTS LIVE IN THE AIR 0% 10% 20% 30% 40% 6.0d 2d 1d 12h 6h Departs Lands