Schedule: FAA flight plans.
SOUTHWEST · FLIGHT WN 3439
IN THE AIR (OFF 10:44 AM PT, ETA 1:41 PM HT)
Today
WN 3439 · SMF → KOA
took off 10:44 AM PT · expected to land 1:41 PM HT (scheduled 9:21 AM PT → 12:47 PM HT)
Forecast issued Fri 1:00 PM ET · 1h after departure
Odds over time
Arrive at KOA more than 15 minutes late?
100%
chance · ±0 pts
+4 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 KOA?
LIVE
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On time or early
0%
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15–30 min late
<1%
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30 min–1 hour late
52%
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1–2 hours late
48%
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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.