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.
ENVOY · FLIGHT MQ 4171
SCHEDULED · TYPICAL SCHEDULE
Tomorrow
MQ 4171 · ROC → BOS
departs 12:00 PM ET · arrives 1:26 PM ET
Forecast issued Thu 4:00 PM ET · 20h before departure
Odds over time
Arrive at BOS more than 15 minutes late?
16%
chance · ±3 pts
−3 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
83%
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15–30 min late
<1%
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30 min–1 hour late
6%
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1–2 hours late
6%
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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%.