Flight profile · Delta Air Lines

DL1204

Kansas City (MCI) to Atlanta (ATL) · scheduled 5:45 AM – 9:00 AM

FlyerIntel does not track flights in the air. This page describes how DL1204 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 DL1204 performs

731 operations, 2024-06-07 to 2026-06-30.

On-time arrivals
92.0%
657 of 714 completed
Cancellation rate
2.05%
15 cancelled
Median arrival delay
-9 min
Average -2.1 min
Severe delays
2.9%
Arrived 60+ minutes late
Delay when late
92 min
Average, when 15+ min late
Departure punctuality
95.3%
Left the gate on time

DL1204 arrived on time 92.0% of the time, against 87.2% for all MCIATL flights — this specific departure is 4.8 percentage points better than the route as a whole. Against Delta Air Lines’s own flights on this route it is 3.2 points better.

Source: US DOT Bureau of Transportation Statistics · 731 operations between 2024-06-07 to 2026-06-30

Against the rest of the route

On timeCancelledMedian delaySevereFlights
DL120492.0%2.05%-9 min2.9%731
Delta Air Lines on MCIATL88.8%1.17%-11 min4.0%7,591
All MCIATL flights87.2%1.09%-10 min4.2%9,832

Source: FlyerIntel analysis of US DOT BTS data · 2024-06-07 to 2026-06-30

Other routes DL1204 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
ORDDTW Chicago to Detroit2023-09-192025-05-0629
ORDMSP Chicago to Minneapolis2025-04-192025-05-033
MSPMSY Minneapolis to New Orleans2024-05-072024-06-0631
MSYMSP New Orleans to Minneapolis2024-05-072024-06-0631
LGBSLC Long Beach to Salt Lake City2024-04-092024-05-0628
SLCLGB Salt Lake City to Long Beach2024-04-092024-05-0628
LAXMSP Los Angeles to Minneapolis2024-03-102024-04-0818
DTWRSW Detroit to Fort Myers2024-01-082024-03-0962
RSWDTW Fort Myers to Detroit2024-01-082024-03-0962
ATLRIC Atlanta to Richmond2023-09-102024-01-0735
RICATL Richmond to Atlanta2023-09-102024-01-0735
ATLBTR Atlanta to Baton Rouge2023-11-052023-12-1541
MIABOS Miami to Boston2023-10-092023-11-0427
DTWORD Detroit to Chicago2023-09-192023-10-046
SLCBWI Salt Lake City to Baltimore2023-09-052023-09-095
BDLMSP Hartford to Minneapolis2023-07-102023-09-0457
MSPBDL Minneapolis to Hartford2023-07-102023-09-0457
SGFATL Springfield to Atlanta2023-07-012023-07-087
ATLSGF Atlanta to Springfield2023-07-012023-07-044

Because the same number has served different journeys, the statistics above describe only the route DL1204 currently operates. Blending them would produce an average of two different flights.

Data and methodology

Calculated by FlyerIntel from 731 records of DL1204 operating MCIATL, 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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