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 3872
SCHEDULED · TYPICAL SCHEDULE
Tomorrow
F9 3872 · PHX → SLC
departs 9:18 AM MT · arrives 11:56 AM MT
Forecast issued Thu 3:00 PM ET · 21h before departure
Odds over time
Arrive at SLC more than 15 minutes late?
13%
chance · ±1 pts
+1 pt · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
-
-
-
-
How late will it get to SLC?
-
On time or early
86%
-
15–30 min late
5%
-
30 min–1 hour late
2%
-
1–2 hours late
5%
-
Over 2 hours late
2%
-
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.