ON TIMEBOARD

F9 2111 on time

Frontier Airlines 2111: Philadelphia to Chicago at 5:06 p.m. (past 12 months)

On time
54%
194 flights · likely 47–60%
Cancelled
5.1%
of scheduled flights
Typical arrival
+6 min
median vs schedule
When late
+117 min
average delay
Similar flights
20%
F9, same route & hour

About 1 in 2 F9 2111 flights from Philadelphia arrived 15+ minutes late, diverted or cancelled over the past year (46%); 5.1% were cancelled. The typical flight landed 6 minutes late.

F9 2111: PHL → ORD

Scheduled to leave Philadelphia at 5:06 p.m. local time. Over the past year it arrived on time 54% of the time (194 flights), better than other F9 flights on the route at that hour (20%). Last seen in the data Aug 31, 2026.

Month by month

10%55%100%Sep 2025: 75% on time (16 flights)75SepOct 2025: 71% on time (21 flights)71OctNov 2025: 59% on time (17 flights)59NovDec 2025: too few flights (11 flights)DecJan 2026: too few flights (14 flights)JanFeb 2026: too few flights (8 flights)FebMar 2026: too few flights (8 flights)MarApr 2026: 53% on time (15 flights)53AprMay 2026: 67% on time (21 flights)67MayJun 2026: 57% on time (21 flights)57JunJul 2026: 19% on time (21 flights)19JulAug 2026: 33% on time (21 flights)33Aug

By day of week

DayFlightsOn time
Monday4852%
Tuesday1—
Wednesday3—
Thursday3658%
Friday4757%
Saturday18—
Sunday4151%

Why it was late

Late inbound plane 45%Air traffic & airport (NAS) 39%Airline (crew, maintenance, ops) 15%Severe weather 1%

All flights PHL → ORD · Connecting off F9 2111? Check the risk

Questions

How often is F9 2111 from PHL to ORD late?

Frontier Airlines 2111 from Philadelphia, PA to Chicago, IL arrived 15 or more minutes late, was diverted or was cancelled on 46% of 194 scheduled flights between September 2025 and August 2026. 5.1% 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.