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.
DELTA · FLIGHT DL 1913
SCHEDULED · TYPICAL SCHEDULE
Tomorrow
DL 1913 · DTW → SJU
departs 8:35 AM ET · arrives 1:11 PM AT
Forecast issued Thu 11:00 AM ET · 22h before departure
Odds over time
Arrive at SJU more than 15 minutes late?
23%
chance · ±1 pts
−1 pt · 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 SJU?
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On time or early
76%
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15–30 min late
11%
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30 min–1 hour late
4%
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1–2 hours late
6%
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Over 2 hours late
2%
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Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.