ON TIMEBOARD

AA 1555 on time

American Airlines 1555: Chicago to Dallas at 8:30 a.m. (past 12 months)

On time
74%
208 flights · likely 67–79%
Cancelled
1.0%
of scheduled flights
Typical arrival
−7 min
median vs schedule
When late
+84 min
average delay
Similar flights
71%
AA, same route & hour

About 1 in 4 AA 1555 flights from Chicago arrived 15+ minutes late, diverted or cancelled over the past year (26%); 1.0% were cancelled. The typical flight landed 7 minutes early.

AA 1555: ORD → DFW

Scheduled to leave Chicago at 8:30 a.m. local time. Over the past year it arrived on time 74% of the time (208 flights), in line with other AA flights on the route at that hour (71%). Last seen in the data Aug 31, 2026.

Month by month

30%65%100%Jul 2025: 52% on time (31 flights)52JulAug 2025: 39% on time (31 flights)39AugSep 2025: 68% on time (28 flights)68SepOct 2025: 74% on time (31 flights)74OctNov 2025: too few flights (1 flights)NovFeb 2026: too few flights (2 flights)FebMar 2026: too few flights (1 flights)MarApr 2026: 70% on time (23 flights)70AprMay 2026: 81% on time (31 flights)81MayJun 2026: 69% on time (29 flights)69JunJul 2026: 84% on time (31 flights)84JulAug 2026: 77% on time (31 flights)77Aug

By day of week

DayFlightsOn time
Monday2983%
Tuesday2972%
Wednesday3379%
Thursday2875%
Friday3070%
Saturday3057%
Sunday2979%

Why it was late

Airline (crew, maintenance, ops) 37%Late inbound plane 29%Air traffic & airport (NAS) 21%Severe weather 13%

All flights ORD → DFW · Connecting off AA 1555? Check the risk

Questions

How often is AA 1555 from ORD to DFW late?

American Airlines 1555 from Chicago, IL to Dallas/Fort Worth, TX arrived 15 or more minutes late, was diverted or was cancelled on 26% of 208 scheduled flights between September 2025 and August 2026. 1.0% 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 American Airlines for today's flight. Method.