Schedule: FAA flight plans.
SOUTHWEST · FLIGHT WN 121
IN THE AIR (OFF 8:50 PM MT, ETA 12:34 AM CT)
Today
WN 121 · PHX → SAT
took off 8:50 PM MT · expected to land 12:34 AM CT (scheduled 8:45 PM MT → 1:05 AM CT)
Forecast issued Sun 10:00 PM ET · 2h before departure
Odds over time
Arrive at SAT more than 15 minutes late?
0%
chance · ±0 pts
+7 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 SAT?
LIVE
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On time or early
100%
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15–30 min late
0%
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30 min–1 hour late
0%
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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.