Schedule: FAA flight plans.
UNITED · FLIGHT UA 1023
SCHEDULED
Today
UA 1023 · BOS → SFO
departs 7:10 AM ET · arrives 10:52 AM PT
Forecast issued Thu 4:00 AM ET · 3h before departure
Odds over time
Arrive at SFO more than 15 minutes late?
16%
chance · ±0 pts
+3 pts · 24h
HOW SURE WE ARE
High. The odds now come mostly from live FAA and airport data.
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How late will it get to SFO?
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On time or early
84%
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15–30 min late
8%
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30 min–1 hour late
5%
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1–2 hours late
1%
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Over 2 hours late
2%
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Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.