Schedule: FAA flight plans.
SOUTHWEST · FLIGHT WN 909
SCHEDULED
Today
WN 909 · BOS → MDW
departs 9:56 PM ET · arrives 11:32 PM CT
Forecast issued Mon 2:00 AM ET · 20h before departure
Odds over time
Arrive at MDW more than 15 minutes late?
46%
chance · ±4 pts
+18 pts · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
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How late will it get to MDW?
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On time or early
53%
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15–30 min late
17%
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30 min–1 hour late
18%
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1–2 hours late
8%
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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%.