ON TIMEBOARD

AA 2378 on time

American Airlines 2378: Dallas to Salt Lake City at 10:52 p.m. (past 12 months)

On time
43%
152 flights · likely 36–51%
Cancelled
3.3%
of scheduled flights
Typical arrival
+18 min
median vs schedule
When late
+65 min
average delay
Similar flights
43%
AA, same route & hour

About 6 in 10 AA 2378 flights from Dallas arrived 15+ minutes late, diverted or cancelled over the past year (57%); 3.3% were cancelled. The typical flight landed 18 minutes late.

AA 2378: DFW → SLC

Scheduled to leave Dallas at 10:52 p.m. local time. Over the past year it arrived on time 43% of the time (152 flights), in line with other AA flights on the route at that hour (43%). Last seen in the data Aug 4, 2026.

Usually American Airlines's last flight of the day from Dallas to Salt Lake City (84% of days). American Airlines's last DFW–SLC flight was cancelled 3.8% of the time, against 2.4% for its earlier ones. If it's cancelled, the next American Airlines flight is usually around 8:37 a.m. the next morning.

Month by month

20%60%100%Apr 2025: 58% on time (26 flights)58AprMay 2025: 40% on time (30 flights)40MayJun 2025: 53% on time (30 flights)53JunJul 2025: 32% on time (31 flights)32JulAug 2025: 35% on time (31 flights)35AugSep 2025: 60% on time (30 flights)60SepOct 2025: too few flights (5 flights)OctApr 2026: 50% on time (24 flights)50AprMay 2026: 45% on time (31 flights)45MayJun 2026: 33% on time (30 flights)33JunJul 2026: 25% on time (28 flights)25JulAug 2026: too few flights (4 flights)Aug

By day of week

DayFlightsOn time
Monday2236%
Tuesday2241%
Wednesday2264%
Thursday2236%
Friday2143%
Saturday2143%
Sunday2241%

Why it was late

Late inbound plane 54%Airline (crew, maintenance, ops) 33%Air traffic & airport (NAS) 7%Severe weather 6%

All flights DFW → SLC · Connecting off AA 2378? Check the risk

Questions

How often is AA 2378 from DFW to SLC late?

American Airlines 2378 from Dallas/Fort Worth, TX to Salt Lake City, UT arrived 15 or more minutes late, was diverted or was cancelled on 57% of 152 scheduled flights between September 2025 and August 2026. 3.3% 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.