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.
FRONTIER · FLIGHT F9 2021
SCHEDULED · TYPICAL SCHEDULE
Tomorrow
F9 2021 · PHL → DTW
departs 6:26 AM ET · arrives 8:17 AM ET
Forecast issued Thu 12:00 PM ET · 18h before departure
Odds over time
Arrive at DTW more than 15 minutes late?
13%
chance · ±2 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 DTW?
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On time or early
86%
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15–30 min late
2%
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30 min–1 hour late
7%
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1–2 hours late
2%
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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%.