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 4373
SCHEDULED · TYPICAL SCHEDULE
YX 4373 · BOS → LGA
departs 10:55 AM ET · arrives 12:18 PM ET
Forecast issued Tue 5:00 PM ET · 66h before departure
Odds over time
Arrive at LGA more than 15 minutes late?
8%
chance · ±2 pts
−8 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 LGA?
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On time or early
91%
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15–30 min late
2%
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30 min–1 hour late
2%
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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%.