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.
ALLEGIANT · FLIGHT G4 237
SCHEDULED · TYPICAL SCHEDULE
G4 237 · AVL → BOS
departs 7:00 AM ET · arrives 9:14 AM ET
Forecast issued Wed 1:00 PM ET · 42h before departure
Odds over time
Arrive at BOS more than 15 minutes late?
5%
chance · ±0 pts
+0 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 BOS?
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On time or early
94%
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15–30 min late
0%
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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
3%
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Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.