ON TIMEBOARD

DL 3879 on time

Delta Air Lines 3879: Detroit to Indianapolis at 1:25 p.m.; Indianapolis to Detroit at 3:25 p.m. (past 12 months). Figures below the title are for DTW → IND, its busiest leg

On time
78%
196 flights · likely 71–83%
Cancelled
0.0%
of scheduled flights
Typical arrival
−8 min
median vs schedule
When late
+98 min
average delay
Similar flights
83%
DL, same route & hour

About 1 in 4 DL 3879 flights from Detroit arrived 15+ minutes late, diverted or cancelled over the past year (22%); 0.0% were cancelled. The typical flight landed 8 minutes early.

DL 3879: DTW → IND

Scheduled to leave Detroit at 1:25 p.m. local time, operated by SkyWest as OO 3879. Over the past year it arrived on time 78% of the time (196 flights), worse than other DL flights on the route at that hour (83%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Aug 2024: too few flights (4 flights)AugSep 2024: too few flights (2 flights)SepOct 2024: 88% on time (25 flights)88OctNov 2024: too few flights (11 flights)NovJan 2026: 56% on time (25 flights)56JanFeb 2026: 71% on time (28 flights)71FebMar 2026: 61% on time (31 flights)61MarApr 2026: too few flights (12 flights)AprMay 2026: 84% on time (25 flights)84MayJun 2026: 96% on time (24 flights)96JunJul 2026: 96% on time (25 flights)96JulAug 2026: 77% on time (26 flights)77Aug

By day of week

DayFlightsOn time
Monday3080%
Tuesday2979%
Wednesday2983%
Thursday3073%
Friday3073%
Saturday18—
Sunday3070%

Why it was late

Airline (crew, maintenance, ops) 77%Severe weather 14%Air traffic & airport (NAS) 9%

All flights DTW → IND · Connecting off DL 3879? Check the risk

DL 3879: IND → DTW

Scheduled to leave Indianapolis at 3:25 p.m. local time, operated by SkyWest as OO 3879. Over the past year it arrived on time 78% of the time (196 flights), worse than other DL flights on the route at that hour (82%). Last seen in the data Aug 31, 2026.

Month by month

30%65%100%Aug 2024: too few flights (4 flights)AugSep 2024: too few flights (2 flights)SepOct 2024: 80% on time (25 flights)80OctNov 2024: too few flights (11 flights)NovJan 2026: 40% on time (25 flights)40JanFeb 2026: 75% on time (28 flights)75FebMar 2026: 68% on time (31 flights)68MarApr 2026: too few flights (12 flights)AprMay 2026: 80% on time (25 flights)80MayJun 2026: 96% on time (24 flights)96JunJul 2026: 92% on time (25 flights)92JulAug 2026: 85% on time (26 flights)85Aug

By day of week

DayFlightsOn time
Monday3077%
Tuesday2979%
Wednesday2979%
Thursday3077%
Friday3073%
Saturday18—
Sunday3073%

Why it was late

Airline (crew, maintenance, ops) 64%Severe weather 32%Air traffic & airport (NAS) 4%

All flights IND → DTW · Connecting off DL 3879? Check the risk

Questions

How often is DL 3879 from DTW to IND late?

Delta Air Lines 3879 from Detroit, MI to Indianapolis, IN arrived 15 or more minutes late, was diverted or was cancelled on 22% of 196 scheduled flights between September 2025 and August 2026. 0.0% were cancelled.

How often is DL 3879 from IND to DTW late?

Delta Air Lines 3879 from Indianapolis, IN to Detroit, MI arrived 15 or more minutes late, was diverted or was cancelled on 22% of 196 scheduled flights between September 2025 and August 2026. 0.0% 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 Delta Air Lines for today's flight. Method.