Flight number record
DL 1497
Delta Air Lines · Atlanta to Orlando
- Route
- ATL → MCO
- Departs
- 17:15
- Flights
- 364
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 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 77.3%. Late arrivals average a little over 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 77.3%, so DL 1497 runs 20 points behind the country as a whole. Across a thousand flights that is about 202 extra late arrivals.
Key figures
On time
57.1%
Arrivals under 15 minutes late, of 361 completed flights
Avg delay
71 min
Across delayed arrivals only, not all flights
Cancelled
0.82%
National rate is 1.89%
1 hour+ late
17.5%
National rate is 8.3%
These figures cover 364 flights between September 2025 and August 2026. Beyond the headline rate, 17.5% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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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 17:00 (89 flights) and 17:05 (49 flights) next.
- Departs 17:15108 flights29.7%
- Departs 17:0089 flights24.5%
- Departs 17:0549 flights13.5%
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 17:15 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, 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.
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Against the route
DL 1497 next to ATL to MCO
Every carrier on ATL to MCO combined arrived on time 70.3% of the time across 8,267 flights, so DL 1497 is 13 points behind it. Delta flew 5,534 flights on the same city pair under all its flight numbers, including this one, and those ran 70.5% on time. Across its whole network Delta Air Lines managed 81.1%, which this flight trails by 24 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 1497thin sample | 364 | 57.1% | 71 min | 0.82% | D+ |
| All Delta Air Lines on ATL–MCO | 5,534 | 70.5% | 65 min | 1.32% | C |
| All carriers on ATL–MCO | 8,267 | 70.3% | 75 min | 1.58% | C |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | 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 2026 at 41.9%, a swing of 24 points on roughly 73 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 flights56.7%
- Oct–Dec 202591 flights65.9%
- Jan–Mar 202690 flights55.2%
- Apr–Jun 202691 flights60.4%
- Jul–Sep 202662 flights41.9%
Scale runs 35% to 70%.
By weekday, DL 1497 did best on Wednesday at 75.0% on time and worst on Sunday at 37.3%. Each day rests on about 52 flights, so a gap of 38 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 1497 runs when it is late
The 155 late arrivals split 46 under half an hour, 46 between 30 and 60 minutes, and 63 an hour or more.
- 15+ min early17 flights4.7%
- Within 15 min189 flights52.4%
- 15–29 min late46 flights12.7%
- 30–59 min late46 flights12.7%
- 1–2 hours late38 flights10.5%
- 2+ hours late25 flights6.9%
Scale runs 0% to 100%.
Share of 361 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 132 departures that left 15 minutes late or more, only 13 made it up before arrival. In the other direction, 36 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at MCO.
The worst days
Worst days for DL 1497
The latest arrival of the period was on 17 July 2026, 5 hours 52 minutes behind schedule; most of its delay minutes were filed as extreme weather. The five worst days are spread across July, June and August, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 17 July 2026 | 5 hours 52 minutes | Extreme weather |
| 14 June 2026 | 5 hours 28 minutes | Carrier |
| 15 June 2026 | 4 hours 38 minutes | Carrier |
| 6 August 2026 | 4 hours 12 minutes | National Airspace System |
| 21 August 2026 | 4 hours 6 minutes | National Airspace System |
Delay causes
Why DL 1497 runs late
National Airspace System accounts for 49% of the 11,000 delay minutes carriers reported here, and the remaining four split what is left.
- 49%National Airspace System
- 35%Carrier
- 9%Late-arriving aircraft
- 7%Extreme weather
The largest share of delay minutes, 35%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 3,842 of the 11,000 delay minutes reported here. The split is drawn from 11,054 delay minutes reported on DL 1497.
Cancellations are rare at 0.82%, below the national 1.89% 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
17.5% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection 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 (301 flights, 66.9% 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 | 301 | 66.9% | 87 min | 1.66% | C |
What to do with this
Booking DL 1497
For a booking, DL 1497 is a flight to put a long connection behind. 17.5% 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 1658 on the same route83.4%
- Delta Air Lines 1030 on the same route80.2%
- Delta Air Lines 1213 on the same route86.9%
- Delta Air Lines 1742 on the same route55.5%
- Delta Air Lines 664 on the same route84.0%
- Delta Air Lines 1150 on the same route61.3%
- 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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.