Schedule: FAA flight plans.
SOUTHWEST · FLIGHT WN 1257
SCHEDULED
Today
WN 1257 · BOS → BNA
departs 5:56 PM ET · arrives 7:28 PM CT
Forecast issued Wed 1:00 AM ET · 17h before departure
Odds over time
Arrive at BNA more than 15 minutes late?
46%
chance · ±1 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 BNA?
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On time or early
54%
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15–30 min late
24%
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30 min–1 hour late
7%
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1–2 hours late
12%
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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%.