Flight number record

DL 1459

Delta Air Lines · Atlanta to Columbus

Route: ATL → CMH
Departs: 22:30
Flights: 351
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 1459, check with Delta Air Lines.

DL 1459 lands a B, 2 points better than the national rate of 77.6%. About one flight in five arrives 15 minutes late or worse, and those flights are late by about an hour on average. That is a workable record, not a spotless one. That rests on 351 flights, with a median arrival 7 minutes early.

On time

79.3%

Arrivals under 15 minutes late, of 343 completed flights

Avg delay

59 min

Across delayed arrivals only, not all flights

Cancelled

1.71%

National rate is 1.81%

1 hour+ late

6.7%

National rate is 8.1%

These figures cover 351 flights between July 2025 and June 2026. The median arrival is 7 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 1459 flies

DL 1459 flies ATL to CMH without a single fixed slot. Its most common scheduled departure was 22:30, used on 87 of 351 flights, with 23:05 (65 flights) and 22:52 (54 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 22:3087 flights24.8%
Departs 23:0565 flights18.5%
Departs 22:5254 flights15.4%

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 22:30 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.5%, and DL 1459 runs 9 points better at 79.3%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.

Against the route

DL 1459 next to ATL to CMH

Every carrier on ATL to CMH combined arrived on time 80.5% of the time across 3,159 flights, so DL 1459 is about level with it. Delta flew 2,693 flights on the same city pair under all its flight numbers, including this one, and those ran 82.1% on time. Across its whole network Delta Air Lines managed 81.6%, which this flight trails by 2 points.

DL 1459 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 1459thin sample	351	79.3%	59 min	1.71%	B
All Delta Air Lines on ATL–CMH	2,693	82.1%	54 min	1.52%	B
All carriers on ATL–CMH	3,159	80.5%	54 min	1.46%	B
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 1459 quarter by quarter

DL 1459 did not run the same all year. Its best quarter was Oct–Dec 2025 at 85.6% on time and its weakest Jul–Sep 2025 at 72.5%, a swing of 13 points on roughly 88 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.

Jul–Sep 202592 flights72.5%
Oct–Dec 202592 flights85.6%
Jan–Mar 202690 flights75.6%
Apr–Jun 202677 flights84.2%

Scale runs 65% to 90%. Rows with fewer than 30 flights show a dash.

By weekday, DL 1459 did best on Saturday at 87.0% on time and worst on Sunday at 63.3%. Each day rests on about 50 flights, so a gap of 24 points is worth noticing but could still narrow in another year.

Delay causes

Why DL 1459 runs late

One category carries most of the weight here. Carrier accounts for 54% of the 4,193 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
54%
Late-arriving aircraft
26%
Extreme weather
10%
National Airspace System
9%

The largest share of delay minutes, 54%, 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 2,283 of the 4,193 delay minutes reported here. The split is drawn from 4,193 delay minutes reported on DL 1459.

Cancellations sit at 1.71% against a national 1.81%, which is ordinary. Diversions add another 0.57%.

Connections and routes

What a delay on this flight costs

6.7% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about an hour, which a normal layover absorbs.

Every one of the 351 flights under DL 1459 in the data flew ATL to CMH. The number was not reused on any other city pair, which makes this a clean record of one route.

One caution: this is a thin sample. 351 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 1459

For a booking, read DL 1459 as 79.3% on time with 1.71% cancelled over 351 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