Schedule: FAA flight plans.
DELTA · FLIGHT DL 21
DELAYED: NOW PLANNED TO TAKE OFF 12:45 PM GMT (15 MIN LATER THAN FIRST FILED)
Tomorrow
DL 21 · LHR → SEA
departs 12:18 PM GMT · arrives 3:15 PM PT
Forecast issued Wed 8:00 AM ET · 24h before departure
Odds over time
Arrive at SEA more than 15 minutes late?
38%
chance · ±0 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
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How late will it get to SEA?
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On time or early
82%
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15–30 min late
11%
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30 min–1 hour late
4%
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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%.