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.
FRONTIER · FLIGHT F9 4131
SCHEDULED · TYPICAL SCHEDULE
Tomorrow
F9 4131 · IAH → LAS
departs 1:17 PM CT · arrives 2:29 PM PT
Forecast issued Thu 5:00 PM ET · 21h before departure
Odds over time
Arrive at LAS more than 15 minutes late?
31%
chance · ±2 pts
−2 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
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How late will it get to LAS?
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On time or early
68%
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15–30 min late
7%
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30 min–1 hour late
9%
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1–2 hours late
10%
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Over 2 hours late
5%
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Cancelled
1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.