DL2121 MCI → ATL

Delta Air Lines · Kansas City, MO to Atlanta, GA · 24 flights observed, 2026-02-12 to 2026-03-07 · 692 mi

DL2121 covers more than one route in the data window — the stats below are for MCI → ATL, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
83%
Median delay
-11 min
90th percentile
+18 min
Cancellation rate
0%

How often is DL2121 on time?

Across 24 flights on MCI → ATL from 2026-02-12 to 2026-03-07, DL2121 arrived within 15 minutes of schedule 83% of the time. The median arrival delay was -11 min, and the worst 10% of flights arrived +18 min or later. 0% of flights were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

ArrivalFlightsShare
Early / on-time2083%
16-30 min28%
31-60 min00%
61-120 min00%
2+ hrs28%

Performance by month

MonthFlightsOn-timeAvg delay
2026-021782%+5 min
2026-03786%+20 min

Performance by day of week

DayFlightsOn-time
Mon3100%
Tue3100%
Wed3100%
Thu475%
Fri4100%
Sat450%
Sun367%

Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…