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 3454
SCHEDULED · TYPICAL SCHEDULE
F9 3454 · ATL → LGA
departs 3:30 PM ET · arrives 5:51 PM ET
Forecast issued Wed 3:00 PM ET · 48h before departure
Odds over time
Arrive at LGA more than 15 minutes late?
68%
chance · ±7 pts
+21 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 LGA?
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On time or early
25%
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15–30 min late
<1%
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30 min–1 hour late
21%
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1–2 hours late
12%
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Over 2 hours late
20%
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Cancelled
22%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.