Schedule: FAA flight plans.
DELTA · FLIGHT DL 20
SCHEDULED
Today
DL 20 · SEA → LHR
departs 5:52 PM PT · arrives 10:38 AM GMT
Your aircraft is N852NW (A332), coming in as DL 21 from LHR: landed 2:39 PM PT.
Forecast issued Fri 7:00 PM ET · 2h before departure
Odds over time
Arrive at LHR more than 15 minutes late?
21%
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 LHR?
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On time or early
79%
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15–30 min late
<1%
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30 min–1 hour late
15%
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1–2 hours late
3%
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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%.