Flight number record
DL 1497
Delta Air Lines · Atlanta to Orlando
- Route
- ATL → MCO
- Departs
- 17:15
- Flights
- 364
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s DL 1497, check with Delta Air Lines.
DL 1497 earns a D+, which is as low as this site's scale goes for a reason. Only 57.1% of flights arrive inside the 15-minute window, 20 points worse than the national rate of 77.6%. Late arrivals average about an hour. Treat any tight connection here as a coin flip. That rests on 364 flights, with a median arrival 9 minutes late.
The national on-time rate over the same period is 77.6%, so DL 1497 runs 20 points behind the country as a whole. Across a thousand flights that is about 205 extra late arrivals.
Key figures
On time
57.1%
Arrivals under 15 minutes late, of 359 completed flights
Avg delay
65 min
Across delayed arrivals only, not all flights
Cancelled
0.82%
National rate is 1.81%
1 hour+ late
15.0%
National rate is 8.1%
These figures cover 364 flights between July 2025 and June 2026. Beyond the headline rate, 15.0% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.
Schedule
When DL 1497 flies
DL 1497 flies ATL to MCO without a single fixed slot. Its most common scheduled departure was 17:15, used on 108 of 364 flights, with 17:05 (69 flights) and 17:00 (63 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 17:15108 flights29.7%
- Departs 17:0569 flights19.0%
- Departs 17:0063 flights17.3%
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 17:15 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.2%, and DL 1497 runs 11 points worse at 57.1%. 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 1497 next to ATL to MCO
Every carrier on ATL to MCO combined arrived on time 70.7% of the time across 8,211 flights, so DL 1497 is 14 points behind it. Delta flew 5,465 flights on the same city pair under all its flight numbers, including this one, and those ran 70.7% on time. Across its whole network Delta Air Lines managed 81.6%, which this flight trails by 24 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 1497thin sample | 364 | 57.1% | 65 min | 0.82% | D+ |
| All Delta Air Lines on ATL–MCO | 5,465 | 70.7% | 64 min | 1.17% | C |
| All carriers on ATL–MCO | 8,211 | 70.7% | 73 min | 1.36% | C |
| Delta Air Lines, whole network | 1,038,570 | 81.6% | 71 min | 1.62% | B |
Across the year
DL 1497 quarter by quarter
DL 1497 did not run the same all year. Its best quarter was Oct–Dec 2025 at 65.9% on time and its weakest Jul–Sep 2025 at 46.7%, a swing of 19 points on roughly 91 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 flights46.7%
- Oct–Dec 202591 flights65.9%
- Jan–Mar 202690 flights55.2%
- Apr–Jun 202691 flights60.4%
Scale runs 40% to 70%. Rows with fewer than 30 flights show a dash.
By weekday, DL 1497 did best on Wednesday at 71.2% on time and worst on Sunday at 35.3%. Each day rests on about 52 flights, so a gap of 36 points is worth noticing but could still narrow in another year.
Delay causes
Why DL 1497 runs late
One category carries most of the weight here. National Airspace System accounts for 46% of the 9,956 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.
- 46%National Airspace System
- 39%Carrier
- 11%Late-arriving aircraft
- 3%Extreme weather
The largest share of delay minutes, 39%, 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 3,926 of the 9,956 delay minutes reported here. The split is drawn from 9,956 delay minutes reported on DL 1497.
Cancellations are rare at 0.82%, below the national 1.81% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.
Connections and routes
What a delay on this flight costs
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 15.0% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.
DL 1497 is not only a ATL to MCO flight. It also flew MCO to ATL (288 flights, 66.1% on time) often enough to be scored on its own. Airlines attach one number to several legs of an aircraft's day, and each leg keeps its own record here, so check which city pair is on your booking before reading a rate.
One caution: this is a thin sample. 364 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.
| Also flown as | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| MCO to ATLthin sample | 288 | 66.1% | 90 min | 1.74% | C |
What to do with this
Booking DL 1497
For a booking, DL 1497 is a flight to put a long connection behind. 15.0% of its completed flights arrived an hour or more late, which a short layover will not absorb. If the onward flight is on a separate ticket, the risk sits with you.
Related
Where to go next
- ATL to MCO, every carrier and departure
- MCO to ATL, the return direction
- Delta Air Lines 1030 on the same route78.9%
- Delta Air Lines 1658 on the same route83.1%
- Delta Air Lines 1213 on the same route85.9%
- Delta Air Lines 1742 on the same route55.3%
- Delta Air Lines 1150 on the same route64.3%
- Delta Air Lines 664 on the same route83.5%
- Hartsfield-Jackson Atlanta International (ATL) delay statistics
- Orlando International (MCO) 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
- How often a connection fails at the major US hubs
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.