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.

SOUTHWEST · FLIGHT WN 1650 LANDED 5:44 PM ET, ~4 MIN LATE · SCHEDULED TIME UNKNOWN
Yesterday

WN 1650 · BWI → MHT

took off 4:41 PM ET · landed 5:44 PM ET (scheduled time unknown)
Forecast issued Tue 10:00 PM ET · 5h after departure

Odds over time

Arrive at MHT more than 15 minutes late?
22% chance · ±0 pts +7 pts · 24h
HOW SURE WE ARE Very high. The odds now come almost entirely from live conditions.
WEATHER FORECASTS LIVE IN THE AIR 0% 10% 20% 30% 40% 1.1d 12h 6h Departs Lands