Schedule: FAA flight plans.

SOUTHWEST · FLIGHT WN 3423 IN THE AIR (OFF 5:43 AM PT, ETA 10:46 AM CT)
Today

WN 3423 · LAX → STL

took off 5:43 AM PT · expected to land 10:46 AM CT (scheduled 5:28 AM PT → 11:13 AM CT)
Forecast issued Mon 9:00 AM ET · 0h before departure

Odds over time

Arrive at STL more than 15 minutes late?
<1% chance · ±0 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% 1.3d 1d 12h 6h Departs Now Lands

How late will it get to STL?

LIVE
  1. On time or early
    100%
  2. 15–30 min late
    <1%
  3. 30 min–1 hour late
    0%
  4. 1–2 hours late
    0%
  5. Over 2 hours late
    0%

Gate arrival compared with the scheduled arrival. The ranges add up to 100%; while it’s in the air they come from the FAA’s arrival estimate.