ATL → BUF Frontier Airlines

Frontier Airlines · Atlanta, GA to Buffalo, NY · 257 flights, 2025-07-01 to 2026-06-30 · aggregated across 2 flight numbers

This route runs much more reliably at some times of day than others — 86% on-time departing 6–9am vs. 33% departing 3–6pm.
On-time arrival
69%
Median delay
0 min
90th percentile
+85 min
Cancellation rate
2%

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

Across every Frontier Airlines flight number on ATL → BUF (257 flights, 2025-07-01 to 2026-06-30), 69% arrived within 15 minutes of schedule. Median arrival delay 0 min; the worst 10% ran +85 min or later. 2% were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time17269%
16-30 min198%
31-60 min239%
61-120 min208%
2+ hrs177%

Performance by month

MonthFlightsOn-timeAvg delay
2025-071765%+22 min
2025-082264%+24 min
2025-091794%-10 min
2025-102171%+9 min
2025-111968%+33 min
2025-121553%+47 min
2026-011560%+27 min
2026-021953%+36 min
2026-031861%+31 min
2026-043060%+24 min
2026-053187%-1 min
2026-062774%+20 min

Performance by day of week

DayFlightsOn-time
Mon4367%
Tue2171%
Wed1587%
Thu4680%
Fri4475%
Sat3355%
Sun4955%

F9 flight numbers on ATL → BUF

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