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 4577
SCHEDULED · TYPICAL SCHEDULE
Tomorrow
YX 4577 · LGA → GSO
departs 8:59 PM ET · arrives 10:53 PM ET
Forecast issued Thu 10:00 AM ET · 35h before departure
Odds over time
Arrive at GSO more than 15 minutes late?
39%
chance · ±4 pts
+13 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 GSO?
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On time or early
54%
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15–30 min late
0%
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30 min–1 hour late
10%
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1–2 hours late
16%
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Over 2 hours late
9%
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Cancelled
11%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.