ON TIMEBOARD

DL 5134 on time

Delta Air Lines 5134: Cincinnati to Washington at 5:10 p.m.; Washington to Cincinnati at 7:40 p.m. (past 12 months). Figures below the title are for CVG → DCA, its busiest leg

On time
48%
274 flights · likely 42–54%
Cancelled
5.5%
of scheduled flights
Typical arrival
+13 min
median vs schedule
When late
+85 min
average delay
Similar flights
47%
DL, same route & hour

About 5 in 10 DL 5134 flights from Cincinnati arrived 15+ minutes late, diverted or cancelled over the past year (52%); 5.5% were cancelled. The typical flight landed 13 minutes late.

DL 5134: CVG → DCA

Scheduled to leave Cincinnati at 5:10 p.m. local time, operated by Endeavor Air as 9E 5134. Over the past year it arrived on time 48% of the time (274 flights), in line with other DL flights on the route at that hour (47%). Last seen in the data Aug 31, 2026.

Usually Delta Air Lines's last flight of the day from Cincinnati to Washington (100% of days). Delta Air Lines's last CVG–DCA flight was cancelled 4.9% of the time, against 1.7% for its earlier ones. If it's cancelled, the next Delta Air Lines flight is usually around 7:00 a.m. the next morning.

Month by month

0%50%100%Sep 2025: 77% on time (26 flights)77SepOct 2025: 67% on time (27 flights)67OctNov 2025: 29% on time (24 flights)29NovDec 2025: 41% on time (17 flights)41DecJan 2026: 50% on time (24 flights)50JanFeb 2026: 50% on time (24 flights)50FebMar 2026: 41% on time (27 flights)41MarApr 2026: 58% on time (26 flights)58AprMay 2026: too few flights (5 flights)MayJun 2026: 52% on time (21 flights)52JunJul 2026: 15% on time (27 flights)15JulAug 2026: 42% on time (26 flights)42Aug

By day of week

DayFlightsOn time
Monday4753%
Tuesday4657%
Wednesday4652%
Thursday4445%
Friday4439%
Saturday1—
Sunday4641%

Why it was late

Late inbound plane 45%Air traffic & airport (NAS) 38%Airline (crew, maintenance, ops) 17%Severe weather 1%

All flights CVG → DCA · Connecting off DL 5134? Check the risk

DL 5134: DCA → CVG

Scheduled to leave Washington at 7:40 p.m. local time, operated by Endeavor Air as 9E 5134. Over the past year it arrived on time 61% of the time (274 flights), in line with other DL flights on the route at that hour (60%). Last seen in the data Aug 31, 2026.

Usually Delta Air Lines's last flight of the day from Washington to Cincinnati (100% of days). Delta Air Lines's last DCA–CVG flight was cancelled 5.2% of the time, against 1.6% for its earlier ones. If it's cancelled, the next Delta Air Lines flight is usually around 9:12 a.m. the next morning.

Month by month

20%60%100%Sep 2025: 92% on time (26 flights)92SepOct 2025: 74% on time (27 flights)74OctNov 2025: 54% on time (24 flights)54NovDec 2025: 41% on time (17 flights)41DecJan 2026: 54% on time (24 flights)54JanFeb 2026: 58% on time (24 flights)58FebMar 2026: too few flights (6 flights)MarApr 2026: 81% on time (16 flights)81AprMay 2026: 63% on time (30 flights)63MayJun 2026: 70% on time (27 flights)70JunJul 2026: 30% on time (27 flights)30JulAug 2026: 46% on time (26 flights)46Aug

By day of week

DayFlightsOn time
Monday4665%
Tuesday4564%
Wednesday4562%
Thursday4452%
Friday4459%
Saturday6—
Sunday4455%

Why it was late

Late inbound plane 61%Airline (crew, maintenance, ops) 29%Air traffic & airport (NAS) 10%

All flights DCA → CVG · Connecting off DL 5134? Check the risk

Questions

How often is DL 5134 from CVG to DCA late?

Delta Air Lines 5134 from Cincinnati, OH to Washington, DC arrived 15 or more minutes late, was diverted or was cancelled on 52% of 274 scheduled flights between September 2025 and August 2026. 5.5% were cancelled.

How often is DL 5134 from DCA to CVG late?

Delta Air Lines 5134 from Washington, DC to Cincinnati, OH arrived 15 or more minutes late, was diverted or was cancelled on 39% of 274 scheduled flights between September 2025 and August 2026. 5.5% 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 Delta Air Lines for today's flight. Method.