Flight number record
DL 1133
Delta Air Lines · Detroit to Orlando
- Route
- DTW → MCO
- Departs
- 16:56
- Flights
- 300
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 1133, check with Delta Air Lines.
DL 1133 draws a D. About one flight in three arrives at least 15 minutes late, and the typical late arrival is about an hour behind schedule. Build slack into anything you connect to. That rests on 300 flights, with a median arrival 2 minutes late.
The national on-time rate over the same period is 77.3%, so DL 1133 runs 13 points behind the country as a whole. Across a thousand flights that is about 131 extra late arrivals.
Key figures
On time
64.2%
Arrivals under 15 minutes late, of 293 completed flights
Avg delay
66 min
Across delayed arrivals only, not all flights
Cancelled
1.67%
National rate is 1.89%
1 hour+ late
12.3%
National rate is 8.3%
These figures cover 300 flights between September 2025 and August 2026. Beyond the headline rate, 12.3% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When DL 1133 flies
DL 1133 flies DTW to MCO without a single fixed slot. Its most common scheduled departure was 16:56, used on 49 of 300 flights, with 16:10 (39 flights) and 16:00 (37 flights) next.
- Departs 16:5649 flights16.3%
- Departs 16:1039 flights13.0%
- Departs 16:0037 flights12.3%
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 16:56 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 71.9%, and DL 1133 runs 8 points worse at 64.2%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
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Against the route
DL 1133 next to DTW to MCO
Every carrier on DTW to MCO combined arrived on time 75.4% of the time across 3,600 flights, so DL 1133 is 11 points behind it. Delta flew 2,211 flights on the same city pair under all its flight numbers, including this one, and those ran 75.3% on time. Across its whole network Delta Air Lines managed 81.1%, which this flight trails by 17 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 1133thin sample | 300 | 64.2% | 66 min | 1.67% | D |
| All Delta Air Lines on DTW–MCO | 2,211 | 75.3% | 73 min | 0.81% | B+ |
| All carriers on DTW–MCO | 3,600 | 75.4% | 74 min | 0.97% | B+ |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 1133 quarter by quarter
DL 1133 did not run the same all year. Its best quarter was Jul–Sep 2025 at 86.7% on time and its weakest Jan–Mar 2026 at 48.3%, a swing of 38 points on roughly 60 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 flights86.7%
- Oct–Dec 202571 flights63.2%
- Jan–Mar 202662 flights48.3%
- Apr–Jun 202681 flights69.1%
- Jul–Sep 202656 flights62.5%
Scale runs 40% to 90%.
By weekday, DL 1133 did best on Wednesday at 84.8% on time and worst on Saturday at 50.0%. Each day rests on about 43 flights, so a gap of 35 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 1133 runs when it is late
The 105 late arrivals split 43 under half an hour, 26 between 30 and 60 minutes, and 36 an hour or more.
- 15+ min early42 flights14.3%
- Within 15 min146 flights49.8%
- 15–29 min late43 flights14.7%
- 30–59 min late26 flights8.9%
- 1–2 hours late18 flights6.1%
- 2+ hours late18 flights6.1%
Scale runs 0% to 100%.
Share of 293 completed flights by arrival against schedule.
15 of 95 late departures made up the time and arrived on time, 16% of them. In the other direction, 25 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 1133
The latest arrival of the period was on 14 May 2026, 6 hours 16 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 14 May 2026 | 6 hours 16 minutes | Carrier |
| 14 December 2025 | 6 hours 10 minutes | Carrier |
| 27 October 2025 | 3 hours 52 minutes | National Airspace System |
| 25 January 2026 | 3 hours 52 minutes | Late-arriving aircraft |
| 24 October 2025 | 3 hours 27 minutes | Carrier |
Delay causes
Why DL 1133 runs late
Carrier accounts for 49% of the 6,975 delay minutes carriers reported here, and the remaining four split what is left.
- 49%Carrier
- 31%Late-arriving aircraft
- 19%National Airspace System
- 1%Extreme weather
The largest share of delay minutes, 49%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 3,391 of the 6,975 delay minutes reported here. The split is drawn from 6,975 delay minutes reported on DL 1133.
Cancellations sit at 1.67% against a national 1.89%, which is ordinary. Diversions add another 0.67%.
Connections and routes
What a delay on this flight costs
12.3% 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.
The 957 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.
The same number turns up on five other city pairs in the data, including MCO to DTW (163), ATL to CAE (19) and CAE to ATL (19), but none flew often enough under DL 1133 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to DTW to MCO only.
One caution: this is a thin sample. 300 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 1133
For a booking, DL 1133 is a flight to put a long connection behind. 12.3% 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
- DTW to MCO, every carrier and departure
- MCO to DTW, the return direction
- Delta Air Lines 337 on the same route74.8%
- Delta Air Lines 2555 on the same route91.3%
- Delta Air Lines 1455 on the same route86.4%
- Delta Air Lines 1747 on the same route72.2%
- Detroit Metropolitan Wayne County (DTW) 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.