Flight profile · Delta Air Lines

DL1236

Milwaukee (MKE) to Atlanta (ATL) · scheduled 7:05 AM – 10:08 AM

FlyerIntel does not track flights in the air. This page describes how DL1236 has historically performed, which is a different and more useful question when you are deciding what to book. For today’s status, check with Delta Air Lines.

How DL1236 performs

760 operations, 2024-03-10 to 2026-06-30.

On-time arrivals
89.1%
664 of 745 completed
Cancellation rate
1.84%
14 cancelled
Median arrival delay
-14 min
Average -0.7 min
Severe delays
4.3%
Arrived 60+ minutes late
Delay when late
110 min
Average, when 15+ min late
Departure punctuality
90.5%
Left the gate on time

DL1236 arrived on time 89.1% of the time, against 87.8% for all MKEATL flights — this specific departure is 1.4 percentage points better than the route as a whole. Against Delta Air Lines’s own flights on this route it is 1.0 points better.

Source: US DOT Bureau of Transportation Statistics · 760 operations between 2024-03-10 to 2026-06-30

Against the rest of the route

On timeCancelledMedian delaySevereFlights
DL123689.1%1.84%-14 min4.3%760
Delta Air Lines on MKEATL88.2%1.31%-13 min4.4%6,273
All MKEATL flights87.8%1.23%-13 min4.4%7,179

Source: FlyerIntel analysis of US DOT BTS data · 2024-03-10 to 2026-06-30

Other routes DL1236 has flown

A flight number is a slot in a schedule, and carriers reassign it. These are the other city pairs this number served in the analysis period.

RouteOperatedFlightsOn time
BOSRDU Boston to Raleigh–Durham2024-05-072024-06-0626
LASSEA Las Vegas to Seattle2024-05-112024-06-015
MDTATL Harrisburg to Atlanta2024-04-092024-05-0628
LGAMIA New York to Miami2024-03-162024-04-064
SLCIAH Salt Lake City to Houston2024-01-082024-03-0959
IAHSLC Houston to Salt Lake City2024-01-132024-03-0210
CHSLGA Charleston to New York2023-12-172024-01-077
LGACHS New York to Charleston2023-12-172024-01-077
ATLIAD Atlanta to Washington2023-11-052023-12-1536
IADATL Washington to Atlanta2023-11-052023-12-1524
LGAMSP New York to Minneapolis2023-09-092023-11-049
LGABOS New York to Boston2023-10-092023-11-0323
LGAATL New York to Atlanta2023-09-052023-10-0829
BZNSLC Bozeman to Salt Lake City2023-07-012023-08-3017
SLCBZN Salt Lake City to Bozeman2023-07-012023-08-3017

Because the same number has served different journeys, the statistics above describe only the route DL1236 currently operates. Blending them would produce an average of two different flights.

Data and methodology

Calculated by FlyerIntel from 760 records of DL1236 operating MKEATL, published by the US DOT Bureau of Transportation Statistics. A flight counts as delayed when it arrives 15 or more minutes after schedule. Cancelled and diverted flights are excluded from the on-time rate and reported separately. Flight numbers are resolved as carrier plus number plus route, because the same number serves different routes over time.

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