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 3394
SCHEDULED · TYPICAL SCHEDULE
F9 3394 · SFO → SLC
departs 5:11 PM PT · arrives 8:06 PM MT
Forecast issued Thu 1:00 AM ET · 43h before departure
Odds over time
Arrive at SLC more than 15 minutes late?
33%
chance · ±4 pts
+5 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 SLC?
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On time or early
67%
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15–30 min late
6%
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30 min–1 hour late
13%
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1–2 hours late
8%
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Over 2 hours late
5%
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Cancelled
1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.