Flight number record
DL 1459
Delta Air Lines · Atlanta to Columbus
- Route
- ATL → CMH
- Departs
- 22:30
- Flights
- 318
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 1459, check with Delta Air Lines.
DL 1459 lands a B, about a point better than the national rate of 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by about an hour on average. That rests on 318 flights, with a median arrival 6 minutes early.
Key figures
On time
78.5%
Arrivals under 15 minutes late, of 311 completed flights
Avg delay
57 min
Across delayed arrivals only, not all flights
Cancelled
1.57%
National rate is 1.89%
1 hour+ late
6.4%
National rate is 8.3%
These figures cover 318 flights between September 2025 and August 2026. The median arrival is 6 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.
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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 318 flights, with 22:52 (56 flights) and 22:41 (37 flights) next.
- Departs 22:3087 flights27.4%
- Departs 22:5256 flights17.6%
- Departs 22:4137 flights11.6%
Scale runs 0% to 100%.
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 70.1%, and DL 1459 runs 8 points better at 78.5%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
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Against the route
DL 1459 next to ATL to CMH
Every carrier on ATL to CMH combined arrived on time 80.0% of the time across 3,130 flights, so DL 1459 is 2 points behind it. Delta flew 2,679 flights on the same city pair under all its flight numbers, including this one, and those ran 81.6% on time. Across its whole network Delta Air Lines managed 81.1%, which this flight trails by 3 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 1459thin sample | 318 | 78.5% | 57 min | 1.57% | B |
| All Delta Air Lines on ATL–CMH | 2,679 | 81.6% | 56 min | 1.38% | B |
| All carriers on ATL–CMH | 3,130 | 80.0% | 56 min | 1.41% | B |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 1459 quarter by quarter
DL 1459 did not run the same all year. Its best quarter was Jul–Sep 2025 at 90.0% on time and its weakest Jan–Mar 2026 at 75.6%, a swing of 14 points on roughly 80 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 202530 flights90.0%
- Oct–Dec 202592 flights85.6%
- Jan–Mar 202690 flights75.6%
- Apr–Jun 202677 flights84.2%
- Jul–Sep 202629 flights—
Scale runs 65% to 95%. Rows with fewer than 30 flights show a dash.
By weekday, DL 1459 did best on Tuesday at 90.0% on time and worst on Sunday at 60.0%. Each day rests on about 45 flights, so a gap of 30 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 1459 runs when it is late
The 67 late arrivals split 30 under half an hour, 17 between 30 and 60 minutes, and 20 an hour or more.
- 15+ min early53 flights17.0%
- Within 15 min191 flights61.4%
- 15–29 min late30 flights9.6%
- 30–59 min late17 flights5.5%
- 1–2 hours late15 flights4.8%
- 2+ hours late5 flights1.6%
Scale runs 0% to 100%.
Share of 311 completed flights by arrival against schedule.
10 of 68 late departures made up the time and arrived on time, 15% of them. 9 flights left on time and still arrived late.
The worst days
Worst days for DL 1459
The latest arrival of the period was on 21 December 2025, 9 hours 19 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The five worst days are spread across December, November and July, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 21 December 2025 | 9 hours 19 minutes | Carrier |
| 9 November 2025 | 3 hours 53 minutes | Late-arriving aircraft |
| 27 July 2026 | 3 hours 25 minutes | Late-arriving aircraft |
| 7 December 2025 | 3 hours 20 minutes | Extreme weather |
| 11 July 2026 | 2 hours 2 minutes | Carrier |
Delay causes
Why DL 1459 runs late
Carrier accounts for 58% of the 3,784 delay minutes carriers reported here, and the remaining four split what is left.
- 58%Carrier
- 24%Late-arriving aircraft
- 9%National Airspace System
- 9%Extreme weather
The largest share of delay minutes, 58%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 2,187 of the 3,784 delay minutes reported here. The split is drawn from 3,784 delay minutes reported on DL 1459.
Cancellations sit at 1.57% against a national 1.89%, which is ordinary. Diversions add another 0.63%.
Connections and routes
What a delay on this flight costs
6.4% of arrivals land an hour or more late, close to the national 8.3%, so 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 318 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. 318 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 78.5% on time with 1.57% cancelled over 318 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- ATL to CMH, every carrier and departure
- CMH to ATL, the return direction
- Delta Air Lines 1522 on the same route90.8%
- Delta Air Lines 2200 on the same route86.6%
- Delta Air Lines 1479 on the same route89.5%
- Delta Air Lines 2786 on the same route73.4%
- Delta Air Lines 1501 on the same route73.7%
- Hartsfield-Jackson Atlanta International (ATL) delay statistics
- John Glenn Columbus International (CMH) delay statistics
- Delta Air Lines on-time record
- Every Delta Air Lines flight number with a record
- The most and least reliable flight numbers in the US
- Worst months to fly in the US, ranked by the data
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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.