Flight number record

DL 1212

Delta Air Lines · Kansas City to Atlanta

Route: MCI → ATL
Departs: 07:00
Flights: 265
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 1212, check with Delta Air Lines.

DL 1212 earns an A. Nearly every flight arrives inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 16 points better than the national rate of 77.6%. When something does go wrong the average delay runs about 2.2 hours. That rests on 265 flights, with a median arrival 14 minutes early.

Set against the rest of the country, DL 1212's record is 16 points better than the US average of 77.6%. That gap is worth roughly 163 fewer late arrivals for every thousand flights.

On time

93.9%

Arrivals under 15 minutes late, of 261 completed flights

Avg delay

133 min

Across delayed arrivals only, not all flights

Cancelled

1.51%

National rate is 1.81%

1 hour+ late

2.7%

National rate is 8.1%

These figures cover 265 flights between July 2025 and June 2026. The median arrival is 14 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.

Schedule

When DL 1212 flies

DL 1212 flies MCI to ATL without a single fixed slot. Its most common scheduled departure was 07:00, used on 170 of 265 flights, with 07:05 (41 flights) and 06:59 (29 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 07:00170 flights64.2%
Departs 07:0541 flights15.5%
Departs 06:5929 flights10.9%

Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.

Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.

A 07:00 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and DL 1212 runs 5 points better at 93.9%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

Against the route

DL 1212 next to MCI to ATL

Every carrier on MCI to ATL combined arrived on time 87.4% of the time across 3,281 flights, so DL 1212 is 7 points ahead of it. Delta flew 2,759 flights on the same city pair under all its flight numbers, including this one, and those ran 90.1% on time. Across its whole network Delta Air Lines managed 81.6%, which this flight beats by 12 points.

DL 1212 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 1212thin sample	265	93.9%	133 min	1.51%	A
All Delta Air Lines on MCI–ATL	2,759	90.1%	74 min	1.52%	A
All carriers on MCI–ATL	3,281	87.4%	73 min	1.37%	A
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 1212 quarter by quarter

Quarter by quarter DL 1212 held fairly steady: 96.7% in Jul–Sep 2025, 92.1% in Oct–Dec 2025 and 92.3% in Apr–Jun 2026. A spread of 5 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202592 flights96.7%
Oct–Dec 202590 flights92.1%
Jan–Mar 20264 flights—
Apr–Jun 202679 flights92.3%

Scale runs 85% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, DL 1212 did best on Thursday at 100.0% on time and worst on Sunday at 78.9%. Each day rests on about 38 flights, so a gap of 21 points is worth noticing but could still narrow in another year.

Delay causes

Why DL 1212 runs late

One category carries most of the weight here. Carrier accounts for 77% of the 2,121 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.

Carrier
77%
National Airspace System
17%
Extreme weather
7%

The largest share of delay minutes, 77%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 1,630 of the 2,121 delay minutes reported here. The split is drawn from 2,121 delay minutes reported on DL 1212.

Cancellations sit at 1.51% against a national 1.81%, which is ordinary. Diversions add another 0.00%.

Connections and routes

What a delay on this flight costs

Badly late arrivals are rare here: only 2.7% land an hour or more behind schedule, against 8.1% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.

The 692 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.

The same number turns up on two other city pairs in the data, including ROC to DTW (62) and FSD to MSP (5), but none flew often enough under DL 1212 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to MCI to ATL only.

One caution: this is a thin sample. 265 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.

What to do with this

Booking DL 1212

For a booking, read DL 1212 as 93.9% on time with 1.51% cancelled over 265 flights. Those are rates from the past twelve months, not a forecast for any particular day.

Where to go next

A flight number here means Delta Air Lines’s own number as it reports to the DOT. How the figures are computed is on the methodology page.

Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.

Key figures