MIA → ATL Frontier Airlines

Frontier Airlines · Miami, FL to Atlanta, GA · 861 flights, 2025-07-01 to 2026-06-30 · aggregated across 5 flight numbers

This route runs much more reliably at some times of day than others — 89% on-time departing 3–6am vs. 44% departing 9pm–12am.
On-time arrival
72%
Median delay
-6 min
90th percentile
+69 min
Cancellation rate
2%

How on-time is Frontier Airlines from MIA to ATL?

Across every Frontier Airlines flight number on MIA → ATL (861 flights, 2025-07-01 to 2026-06-30), 72% arrived within 15 minutes of schedule. Median arrival delay -6 min; the worst 10% ran +69 min or later. 2% were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

ArrivalFlightsShare
Early / on-time61072%
16-30 min799%
31-60 min648%
61-120 min435%
2+ hrs486%

Performance by month

MonthFlightsOn-timeAvg delay
2025-075573%+9 min
2025-085575%+21 min
2025-095881%-4 min
2025-106083%-6 min
2025-116164%+20 min
2025-127371%+17 min
2026-016978%-2 min
2026-026277%+10 min
2026-038564%+21 min
2026-048569%+9 min
2026-059266%+28 min
2026-068973%+9 min

Performance by day of week

DayFlightsOn-time
Mon12870%
Tue10871%
Wed9682%
Thu12578%
Fri13376%
Sat12466%
Sun13065%

F9 flight numbers on MIA → ATL

Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…