Schedule: FAA flight plans.
DELTA · FLIGHT DL 639
IN THE AIR (OFF 8:34 AM PT, ETA 4:20 PM ET)
Today
DL 639 · LAX → BOS
took off 8:34 AM PT · expected to land 4:20 PM ET (scheduled 6:40 AM PT → 3:15 PM ET)
Forecast issued Mon 11:00 AM ET · 1h after departure
Odds over time
Arrive at BOS more than 15 minutes late?
100%
chance · ±0 pts
−1 pt · 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
0%
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15–30 min late
0%
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30 min–1 hour late
11%
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1–2 hours late
89%
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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.