Schedule: a typical summer Sunday (the flights of Jul 26, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.

SOUTHWEST · FLIGHT WN 1523 SCHEDULED · TYPICAL ODDS

WN 1523 · DEN → DAL

departs 8:25 PM MT · arrives 11:30 PM CT
Forecast issued Wed 2:00 PM ET · 104h before departure

Typical odds Too early for a weather forecast — these are typical odds for this flight on a Sunday in October, from the weather this date has had in past years (the range shows how much they varied). They’ll switch to forecast-based odds about 3 days before departure.

Odds over time

Arrive at DAL more than 15 minutes late?
34% chance · ±10 pts +0 pts · 24h
HOW SURE WE ARE Low. This is mostly a starting point from history; weather forecasts haven't kicked in yet.
MOSTLY HISTORY WEATHER FORECASTS LIVE IN THE AIR 0% 15% 30% 45% 60% 6.0d Now 2d 1d 12h 6h Departs Lands

How late will it get to DAL?

  1. On time or early
    62%
  2. 15–30 min late
    9%
  3. 30 min–1 hour late
    15%
  4. 1–2 hours late
    6%
  5. Over 2 hours late
    2%
  6. Cancelled
    6%

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