ON TIMEBOARD

DL 2999 on time

Delta Air Lines 2999: Atlanta to Milwaukee at 8:05 a.m.; Milwaukee to Atlanta at 10:11 a.m. (past 12 months). Figures below the title are for ATL → MKE, its busiest leg

On time
89%
357 flights · likely 85–92%
Cancelled
3.1%
of scheduled flights
Typical arrival
−10 min
median vs schedule
When late
+50 min
average delay
Similar flights
89%
DL, same route & hour

About 1 in 9 DL 2999 flights from Atlanta arrived 15+ minutes late, diverted or cancelled over the past year (11%); 3.1% were cancelled. The typical flight landed 10 minutes early.

DL 2999: ATL → MKE

Scheduled to leave Atlanta at 8:05 a.m. local time. Over the past year it arrived on time 89% of the time (357 flights), in line with other DL flights on the route at that hour (89%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 90% on time (30 flights)90SepOct 2025: 94% on time (31 flights)94OctNov 2025: 93% on time (30 flights)93NovDec 2025: 74% on time (31 flights)74DecJan 2026: 75% on time (28 flights)75JanFeb 2026: 92% on time (24 flights)92FebMar 2026: 83% on time (30 flights)83MarApr 2026: 90% on time (30 flights)90AprMay 2026: 100% on time (31 flights)100MayJun 2026: 90% on time (30 flights)90JunJul 2026: 90% on time (31 flights)90JulAug 2026: 94% on time (31 flights)94Aug

By day of week

DayFlightsOn time
Monday5387%
Tuesday5288%
Wednesday5294%
Thursday5294%
Friday5294%
Saturday4687%
Sunday5076%

Why it was late

Airline (crew, maintenance, ops) 69%Air traffic & airport (NAS) 23%Late inbound plane 6%Severe weather 2%

All flights ATL → MKE · Connecting off DL 2999? Check the risk

DL 2999: MKE → ATL

Scheduled to leave Milwaukee at 10:11 a.m. local time. Over the past year it arrived on time 92% of the time (357 flights), in line with other DL flights on the route at that hour (92%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 93% on time (30 flights)93SepOct 2025: 100% on time (31 flights)100OctNov 2025: 97% on time (30 flights)97NovDec 2025: 77% on time (31 flights)77DecJan 2026: 82% on time (28 flights)82JanFeb 2026: 100% on time (24 flights)100FebMar 2026: 87% on time (30 flights)87MarApr 2026: 97% on time (30 flights)97AprMay 2026: 100% on time (31 flights)100MayJun 2026: 87% on time (30 flights)87JunJul 2026: 90% on time (31 flights)90JulAug 2026: 97% on time (31 flights)97Aug

By day of week

DayFlightsOn time
Monday5391%
Tuesday5296%
Wednesday5292%
Thursday5296%
Friday5296%
Saturday4689%
Sunday5084%

Why it was late

Late inbound plane 63%Airline (crew, maintenance, ops) 24%Air traffic & airport (NAS) 13%

All flights MKE → ATL · Connecting off DL 2999? Check the risk

Questions

How often is DL 2999 from ATL to MKE late?

Delta Air Lines 2999 from Atlanta, GA to Milwaukee, WI arrived 15 or more minutes late, was diverted or was cancelled on 11% of 357 scheduled flights between September 2025 and August 2026. 3.1% were cancelled.

How often is DL 2999 from MKE to ATL late?

Delta Air Lines 2999 from Milwaukee, WI to Atlanta, GA arrived 15 or more minutes late, was diverted or was cancelled on 8% of 357 scheduled flights between September 2025 and August 2026. 3.1% 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.