Flight number record
DL 1150
Delta Air Lines · Orlando to Atlanta
- Route
- MCO → ATL
- Departs
- 17:30
- Flights
- 363
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 1150, check with Delta Air Lines.
DL 1150 draws a D. Roughly one flight in two arrives at least 15 minutes late, and the typical late arrival is an hour and a half behind schedule. Build slack into anything you connect to. That rests on 363 flights, with a median arrival 3 minutes late.
The national on-time rate over the same period is 77.3%, so DL 1150 runs 19 points behind the country as a whole. Across a thousand flights that is about 193 extra late arrivals.
Key figures
On time
58.0%
Arrivals under 15 minutes late, of 357 completed flights
Avg delay
89 min
Across delayed arrivals only, not all flights
Cancelled
1.65%
National rate is 1.89%
1 hour+ late
20.7%
National rate is 8.3%
These figures cover 363 flights between September 2025 and August 2026. Beyond the headline rate, 20.7% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When DL 1150 flies
DL 1150 flies MCO to ATL without a single fixed slot. Its most common scheduled departure was 17:30, used on 116 of 363 flights, with 17:45 (109 flights) and 17:35 (69 flights) next.
- Departs 17:30116 flights32.0%
- Departs 17:45109 flights30.0%
- Departs 17:3569 flights19.0%
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 17:30 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, and DL 1150 runs 10 points worse at 58.0%. 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 1150 next to MCO to ATL
Every carrier on MCO to ATL combined arrived on time 74.9% of the time across 8,259 flights, so DL 1150 is 17 points behind it. Delta flew 5,531 flights on the same city pair under all its flight numbers, including this one, and those ran 78.3% on time. Across its whole network Delta Air Lines managed 81.1%, which this flight trails by 23 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 1150thin sample | 363 | 58.0% | 89 min | 1.65% | D |
| All Delta Air Lines on MCO–ATL | 5,531 | 78.3% | 88 min | 1.39% | B |
| All carriers on MCO–ATL | 8,259 | 74.9% | 80 min | 1.65% | C |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 1150 quarter by quarter
DL 1150 did not run the same all year. Its best quarter was Jan–Mar 2026 at 66.7% on time and its weakest Jul–Sep 2026 at 35.0%, a swing of 32 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 202592 flights65.6%
- Jan–Mar 202688 flights66.7%
- Apr–Jun 202691 flights57.8%
- Jul–Sep 202662 flights35.0%
Scale runs 25% to 70%.
By weekday, DL 1150 did best on Thursday at 68.0% on time and worst on Sunday at 45.1%. Each day rests on about 52 flights, so a gap of 23 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 1150 runs when it is late
The 150 late arrivals split 26 under half an hour, 50 between 30 and 60 minutes, and 74 an hour or more.
- 15+ min early86 flights24.1%
- Within 15 min121 flights33.9%
- 15–29 min late26 flights7.3%
- 30–59 min late50 flights14.0%
- 1–2 hours late41 flights11.5%
- 2+ hours late33 flights9.2%
Scale runs 0% to 100%.
Share of 357 completed flights by arrival against schedule.
34 of 169 late departures made up the time and arrived on time, 20% of them. 15 flights left on time and still arrived late.
The worst days
Worst days for DL 1150
The latest arrival of the period was on 7 December 2025, 9 hours 4 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, February, July and November, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 7 December 2025 | 9 hours 4 minutes | Carrier |
| 27 February 2026 | 8 hours 25 minutes | National Airspace System |
| 29 July 2026 | 6 hours 36 minutes | Carrier |
| 9 November 2025 | 5 hours 44 minutes | Late-arriving aircraft |
| 13 July 2026 | 4 hours 33 minutes | Late-arriving aircraft |
Delay causes
Why DL 1150 runs late
Late-arriving aircraft accounts for 57% of the 13,000 delay minutes carriers reported here, and the remaining four split what is left.
- 57%Late-arriving aircraft
- 19%National Airspace System
- 18%Carrier
- 6%Extreme weather
57% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 13,000 reported delay minutes here, that single category outweighs weather by 10 to one. The split is drawn from 13,355 delay minutes reported on DL 1150.
Cancellations sit at 1.65% against a national 1.89%, which is ordinary. Diversions add another 0.00%.
Connections and routes
What a delay on this flight costs
20.7% 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 1150 is not only a MCO to ATL flight. It also flew ATL to MCO (363 flights, 61.3% 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. 363 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 |
|---|---|---|---|---|---|
| ATL to MCOthin sample | 363 | 61.3% | 71 min | 0.83% | D+ |
What to do with this
Booking DL 1150
For a booking, DL 1150 is a flight to put a long connection behind. 20.7% 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
- MCO to ATL, every carrier and departure
- ATL to MCO, the return direction
- Delta Air Lines 1658 on the same route79.9%
- Delta Air Lines 1213 on the same route83.1%
- Delta Air Lines 1494 on the same route94.2%
- Delta Air Lines 664 on the same route79.2%
- Delta Air Lines 2080 on the same route89.6%
- Delta Air Lines 1463 on the same route88.6%
- Orlando International (MCO) delay statistics
- Hartsfield-Jackson Atlanta International (ATL) 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
- Why the first flight of the morning is statistically safest
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.