Tracked live by the FAA. The scheduled times shown are from a typical Saturday because the FAA's flight plan was first seen after takeoff.
UNITED · FLIGHT UA 1434
SCHEDULED
Today
UA 1434 · IAD → SFO
departs 12:40 PM ET · arrives 3:27 PM PT
Forecast issued Sat 12:00 AM ET · 13h before departure
Odds over time
Arrive at SFO more than 15 minutes late?
33%
chance · ±0 pts
+21 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 SFO?
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On time or early
67%
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15–30 min late
26%
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30 min–1 hour late
0%
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1–2 hours late
4%
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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%.