Schedule: the flights that flew on Friday, Nov 6, re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.

SOUTHWEST · FLIGHT WN 1399 SCHEDULED · TYPICAL SCHEDULE

WN 1399 · MDW → MIA

departs 12:51 PM CT · arrives 4:52 PM ET
Forecast issued Wed 7:00 PM ET · 43h before departure

Odds over time

Arrive at MIA more than 15 minutes late?
38% chance · ±0 pts +7 pts · 24h
HOW SURE WE ARE Moderate. The odds now blend history with early weather forecasts.
MOSTLY HISTORY WEATHER FORECASTS LIVE IN THE AIR 0% 15% 30% 45% 60% 6.6d Now 1d 12h 6h Departs Lands

How late will it get to MIA?

  1. On time or early
    60%
  2. 15–30 min late
    15%
  3. 30 min–1 hour late
    11%
  4. 1–2 hours late
    7%
  5. Over 2 hours late
    5%
  6. Cancelled
    2%

Gate arrival compared with the scheduled arrival. The ranges add up to 100%.