Schedule: a typical Friday (the flights of Jul 31, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SOUTHWEST · FLIGHT WN 1423
SCHEDULED · TYPICAL SCHEDULE
WN 1423 · LAS → FAT
departs 9:35 AM PT · arrives 10:55 AM PT
Forecast issued Tue 11:00 PM ET · 62h before departure
Odds over time
Arrive at FAT more than 15 minutes late?
8%
chance · ±0 pts
−1 pt · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
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How late will it get to FAT?
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On time or early
92%
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15–30 min late
2%
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30 min–1 hour late
4%
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1–2 hours late
2%
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Over 2 hours late
<1%
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Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.