ON TIMEBOARD

AA 1978 on time

American Airlines 1978: Washington to Dallas at 7:45 a.m. (past 12 months)

On time
81%
310 flights · likely 77–85%
Cancelled
2.9%
of scheduled flights
Typical arrival
−12 min
median vs schedule
When late
+109 min
average delay
Similar flights
85%
AA, same route & hour

About 1 in 5 AA 1978 flights from Washington arrived 15+ minutes late, diverted or cancelled over the past year (19%); 2.9% were cancelled. The typical flight landed 12 minutes early.

AA 1978: DCA → DFW

Scheduled to leave Washington at 7:45 a.m. local time. Over the past year it arrived on time 81% of the time (310 flights), worse than other AA flights on the route at that hour (85%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 87% on time (30 flights)87SepOct 2025: too few flights (5 flights)OctNov 2025: 86% on time (29 flights)86NovDec 2025: 80% on time (30 flights)80DecJan 2026: 67% on time (30 flights)67JanFeb 2026: 75% on time (28 flights)75FebMar 2026: too few flights (10 flights)MarApr 2026: 76% on time (25 flights)76AprMay 2026: 81% on time (31 flights)81MayJun 2026: 83% on time (30 flights)83JunJul 2026: 84% on time (31 flights)84JulAug 2026: 97% on time (31 flights)97Aug

By day of week

DayFlightsOn time
Monday4473%
Tuesday4388%
Wednesday4384%
Thursday4491%
Friday4482%
Saturday4873%
Sunday4480%

Why it was late

Late inbound plane 43%Airline (crew, maintenance, ops) 42%Air traffic & airport (NAS) 14%Severe weather 1%

All flights DCA → DFW · Connecting off AA 1978? Check the risk

Questions

How often is AA 1978 from DCA to DFW late?

American Airlines 1978 from Washington, DC to Dallas/Fort Worth, TX arrived 15 or more minutes late, was diverted or was cancelled on 19% of 310 scheduled flights between September 2025 and August 2026. 2.9% 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.