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 3697 LANDED 2:41 PM MT, ~13 MIN LATE · SCHEDULED TIME UNKNOWN
Today

WN 3697 · TUS → DEN

took off 12:10 PM MT · landed 2:41 PM MT (scheduled time unknown)
Forecast issued Mon 5:00 PM ET · 2h after departure

Odds over time

Arrive at DEN more than 15 minutes late?
15% chance · ±1 pts +2 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% 1.0d 12h 6h Departs Lands