Schedule: FAA flight plans.
DELTA · FLIGHT DL 438
SCHEDULED
Today
DL 438 · SEA → BOS
departs 11:15 AM PT · arrives 7:43 PM ET
Your aircraft is N525DA (A21N), coming in as DL 444 from ATL: landed 9:25 AM PT.
Forecast issued Mon 1:00 PM ET · 1h before departure
Odds over time
Arrive at BOS more than 15 minutes late?
100%
chance · ±0 pts
−5 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 BOS?
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On time or early
76%
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15–30 min late
6%
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30 min–1 hour late
8%
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1–2 hours late
5%
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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%.