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
Tomorrow
YX 4373 · LGA → BOS
departs 8:59 AM ET · arrives 10:19 AM ET
Forecast issued Thu 9:00 AM ET · 24h before departure
Odds over time
Arrive at BOS more than 15 minutes late?
6%
chance · ±0 pts
+0 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 BOS?
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On time or early
93%
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15–30 min late
1%
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30 min–1 hour late
2%
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1–2 hours late
1%
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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%.