Schedule: FAA flight plans.
UNITED · FLIGHT UA 3877
SCHEDULED
Yesterday
UA 3877 · RFD → ORD
departs 9:25 PM CT · arrives 10:13 PM CT
Your aircraft is N15710 (B737).
Forecast issued Thu 11:00 PM ET · 1h after departure
Odds over time
Arrive at ORD more than 15 minutes late?
30%
chance · ±2 pts
– · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
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How late will it get to ORD?
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On time or early
70%
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15–30 min late
13%
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30 min–1 hour late
8%
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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%.