Schedule: a typical Thursday (the flights of Jul 30, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.

SOUTHWEST · FLIGHT WN 4144 SCHEDULED · TYPICAL SCHEDULE
Today

WN 4144 · MDW → SEA

departs 10:00 PM CT · arrives 12:35 AM PT
Forecast issued Thu 4:00 PM ET · 7h before departure

Odds over time

Arrive at SEA more than 15 minutes late?
63% chance · ±0 pts +26 pts · 24h
HOW SURE WE ARE Good. The odds now lean mostly on firmed-up weather forecasts.
WEATHER FORECASTS LIVE IN THE AIR 0% 25% 50% 75% 100% 2.8d 2d 1d 12h Now Departs Lands

How late will it get to SEA?

  1. On time or early
    36%
  2. 15–30 min late
    32%
  3. 30 min–1 hour late
    4%
  4. 1–2 hours late
    23%
  5. Over 2 hours late
    3%
  6. Cancelled
    1%

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