ON TIMEBOARD

F9 1550 on time

Frontier Airlines 1550: Atlanta to Jacksonville at 4:18 p.m. (past 12 months)

On time
51%
231 flights · likely 45–57%
Cancelled
1.7%
of scheduled flights
Typical arrival
+12 min
median vs schedule
When late
+60 min
average delay
Similar flights
40%
F9, same route & hour

About 1 in 2 F9 1550 flights from Atlanta arrived 15+ minutes late, diverted or cancelled over the past year (49%); 1.7% were cancelled. The typical flight landed 12 minutes late.

F9 1550: ATL → JAX

Scheduled to leave Atlanta at 4:18 p.m. local time. Over the past year it arrived on time 51% of the time (231 flights), better than other F9 flights on the route at that hour (40%). Last seen in the data Aug 31, 2026.

Month by month

30%65%100%Sep 2025: too few flights (8 flights)SepOct 2025: too few flights (9 flights)OctNov 2025: too few flights (12 flights)NovDec 2025: too few flights (11 flights)DecJan 2026: 60% on time (15 flights)60JanFeb 2026: too few flights (14 flights)FebMar 2026: 70% on time (20 flights)70MarApr 2026: 50% on time (22 flights)50AprMay 2026: 45% on time (31 flights)45MayJun 2026: 50% on time (28 flights)50JunJul 2026: 37% on time (30 flights)37JulAug 2026: 35% on time (31 flights)35Aug

By day of week

DayFlightsOn time
Monday4050%
Tuesday17—
Wednesday3177%
Thursday3653%
Friday4053%
Saturday2737%
Sunday4040%

Why it was late

Late inbound plane 59%Air traffic & airport (NAS) 21%Airline (crew, maintenance, ops) 18%Severe weather 1%

All flights ATL → JAX · Connecting off F9 1550? Check the risk

Questions

How often is F9 1550 from ATL to JAX late?

Frontier Airlines 1550 from Atlanta, GA to Jacksonville, FL arrived 15 or more minutes late, was diverted or was cancelled on 49% of 231 scheduled flights between September 2025 and August 2026. 1.7% were cancelled.

Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check Frontier Airlines for today's flight. Method.