Tracked live by the FAA. The scheduled times shown are from a typical Wednesday because the FAA's flight plan was first seen after takeoff.
DELTA · FLIGHT DL 474
IN THE AIR (OFF 4:42 PM PT, ETA 12:12 AM ET)
Today
DL 474 · SEA → BOS
took off 4:42 PM PT · expected to land 12:12 AM ET (scheduled 4:00 PM PT → 12:14 AM ET)
Forecast issued Wed 8:00 PM ET · 1h after departure
Odds over time
Arrive at BOS more than 15 minutes late?
14%
chance · ±0 pts
+8 pts · 24h
HOW SURE WE ARE
Very high. The odds now come almost entirely from live conditions.
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How late will it get to BOS?
LIVE
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On time or early
86%
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15–30 min late
14%
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30 min–1 hour late
<1%
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1–2 hours late
0%
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Over 2 hours late
0%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%; while it’s in the air they come from the FAA’s arrival estimate.