ON TIMEBOARD

DL 661 on time

Delta Air Lines 661: Fort Lauderdale to Cincinnati at 5:59 p.m.; Cincinnati to Fort Lauderdale at 2:39 p.m. (past 12 months). Figures below the title are for FLL → CVG, its busiest leg

On time
70%
320 flights · likely 65–75%
Cancelled
1.6%
of scheduled flights
Typical arrival
−5 min
median vs schedule
When late
+92 min
average delay
Similar flights
66%
DL, same route & hour

About 1 in 3 DL 661 flights from Fort Lauderdale arrived 15+ minutes late, diverted or cancelled over the past year (30%); 1.6% were cancelled. The typical flight landed 5 minutes early.

DL 661: FLL → CVG

Scheduled to leave Fort Lauderdale at 5:59 p.m. local time. Over the past year it arrived on time 70% of the time (320 flights), better than other DL flights on the route at that hour (66%). Last seen in the data Aug 2, 2026.

Month by month

40%70%100%Sep 2025: 70% on time (30 flights)70SepOct 2025: 84% on time (31 flights)84OctNov 2025: 83% on time (30 flights)83NovDec 2025: 74% on time (19 flights)74DecJan 2026: 78% on time (27 flights)78JanFeb 2026: 79% on time (28 flights)79FebMar 2026: 55% on time (31 flights)55MarApr 2026: 67% on time (30 flights)67AprMay 2026: 81% on time (31 flights)81MayJun 2026: 67% on time (30 flights)67JunJul 2026: 45% on time (31 flights)45JulAug 2026: too few flights (2 flights)Aug

By day of week

DayFlightsOn time
Monday4665%
Tuesday4680%
Wednesday4685%
Thursday4676%
Friday4667%
Saturday4569%
Sunday4549%

Why it was late

Late inbound plane 56%Airline (crew, maintenance, ops) 31%Air traffic & airport (NAS) 12%Severe weather 2%

All flights FLL → CVG · Connecting off DL 661? Check the risk

DL 661: CVG → FLL

Scheduled to leave Cincinnati at 2:39 p.m. local time. Over the past year it arrived on time 77% of the time (313 flights), in line with other DL flights on the route at that hour (76%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 83% on time (30 flights)83SepOct 2025: 87% on time (31 flights)87OctNov 2025: 86% on time (29 flights)86NovDec 2025: 63% on time (19 flights)63DecJan 2026: 81% on time (27 flights)81JanFeb 2026: 82% on time (28 flights)82FebMar 2026: 68% on time (31 flights)68MarApr 2026: 90% on time (30 flights)90AprMay 2026: too few flights (6 flights)MayJun 2026: 75% on time (24 flights)75JunJul 2026: 55% on time (31 flights)55JulAug 2026: 70% on time (27 flights)70Aug

By day of week

DayFlightsOn time
Monday4772%
Tuesday4683%
Wednesday4691%
Thursday4484%
Friday4571%
Saturday4073%
Sunday4562%

Why it was late

Late inbound plane 48%Airline (crew, maintenance, ops) 30%Air traffic & airport (NAS) 14%Severe weather 9%

All flights CVG → FLL · Connecting off DL 661? Check the risk

Questions

How often is DL 661 from FLL to CVG late?

Delta Air Lines 661 from Fort Lauderdale, FL to Cincinnati, OH arrived 15 or more minutes late, was diverted or was cancelled on 30% of 320 scheduled flights between September 2025 and August 2026. 1.6% were cancelled.

How often is DL 661 from CVG to FLL late?

Delta Air Lines 661 from Cincinnati, OH to Fort Lauderdale, FL arrived 15 or more minutes late, was diverted or was cancelled on 23% of 313 scheduled flights between September 2025 and August 2026. 1.3% 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 Delta Air Lines for today's flight. Method.