Schedule: a typical Friday (the flights of Jul 31, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SOUTHWEST · FLIGHT WN 1278
SCHEDULED · TYPICAL SCHEDULE
WN 1278 · DAL → BNA
departs 9:45 PM CT · arrives 11:35 PM CT
Forecast issued Wed 6:00 AM ET · 65h before departure
Odds over time
Arrive at BNA more than 15 minutes late?
56%
chance · ±7 pts
– · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
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How late will it get to BNA?
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On time or early
42%
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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
13%
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Over 2 hours late
6%
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Cancelled
4%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.