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.
REPUBLIC · FLIGHT YX 4391
SCHEDULED · TYPICAL SCHEDULE
YX 4391 · PWM → ORD
departs 6:00 AM ET · arrives 8:11 AM CT
Forecast issued Wed 4:00 AM ET · 50h before departure
Odds over time
Arrive at ORD more than 15 minutes late?
10%
chance · ±1 pts
– · 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 ORD?
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On time or early
88%
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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
2%
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Cancelled
2%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.