Flight number record
DL 2555
Delta Air Lines · Detroit to Orlando
- Route
- DTW → MCO
- Departs
- 07:05
- Flights
- 313
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 2555, check with Delta Air Lines.
DL 2555 earns an A+. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 14 points better than the national rate of 77.3%. When something does go wrong the average delay runs roughly 45 minutes. That rests on 313 flights, with a median arrival 7 minutes early.
Set against the rest of the country, DL 2555's record is 14 points better than the US average of 77.3%. That gap is worth roughly 140 fewer late arrivals for every thousand flights.
Key figures
On time
91.3%
Arrivals under 15 minutes late, of 312 completed flights
Avg delay
43 min
Across delayed arrivals only, not all flights
Cancelled
0.32%
National rate is 1.89%
1 hour+ late
1.3%
National rate is 8.3%
These figures cover 313 flights between September 2025 and August 2026. The median arrival is 7 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 2555 flies
DL 2555 flies DTW to MCO without a single fixed slot. Its most common scheduled departure was 07:05, used on 131 of 313 flights, with 07:00 (69 flights) and 07:10 (38 flights) next.
- Departs 07:05131 flights41.9%
- Departs 07:0069 flights22.0%
- Departs 07:1038 flights12.1%
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 07:05 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and DL 2555 runs 2 points better at 91.3%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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Against the route
DL 2555 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 2555 is 16 points ahead of 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 beats by 10 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 2555thin sample | 313 | 91.3% | 43 min | 0.32% | A+ |
| 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 2555 quarter by quarter
DL 2555 did not run the same all year. Its best quarter was Jul–Sep 2025 at 100.0% on time and its weakest Jan–Mar 2026 at 88.5%, a swing of 12 points on roughly 63 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 flights100.0%
- Oct–Dec 202580 flights90.0%
- Jan–Mar 202662 flights88.5%
- Apr–Jun 202679 flights91.1%
- Jul–Sep 202662 flights91.9%
Scale runs 80% to 100%.
By weekday, DL 2555 ranged from 84.4% on Friday to 95.5% on Saturday. With about 45 flights behind each day, a spread of 11 points is inside normal variation, so the day you fly is not worth changing for this flight.
Arrival by arrival
How late DL 2555 runs when it is late
Most of the lateness is short. 18 of the 27 late arrivals were under half an hour behind, and 4 reached an hour or more.
- 15+ min early77 flights24.7%
- Within 15 min208 flights66.7%
- 15–29 min late18 flights5.8%
- 30–59 min late5 flights1.6%
- 1–2 hours late1 flights0.3%
- 2+ hours late3 flights1.0%
Scale runs 0% to 100%.
Share of 312 completed flights by arrival against schedule.
A late pushback is often recovered here: of 27 departures that left 15 minutes late or more, 11 still arrived on time. 11 flights left on time and still arrived late.
The worst days
Worst days for DL 2555
The latest arrival of the period was on 5 December 2025, 3 hours 33 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on five of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 5 December 2025 | 3 hours 33 minutes | Carrier |
| 5 July 2026 | 2 hours 21 minutes | Carrier |
| 28 January 2026 | 2 hours 3 minutes | Carrier |
| 10 August 2026 | 1 hour 8 minutes | Carrier |
| 2 December 2025 | 52 minutes | Carrier |
Delay causes
Why DL 2555 runs late
Carrier accounts for 76% of the 1,158 delay minutes carriers reported here, and the remaining four split what is left.
- 76%Carrier
- 21%National Airspace System
- 2%Extreme weather
- 1%Late-arriving aircraft
The largest share of delay minutes, 76%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 880 of the 1,158 delay minutes reported here. The split is drawn from 1,158 delay minutes reported on DL 2555.
Cancellations are rare at 0.32%, 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
Badly late arrivals are rare here: only 1.3% land an hour or more behind schedule, against 8.3% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.
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.
Every one of the 313 flights under DL 2555 in the data flew DTW to MCO. 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. 313 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 2555
For a booking, DL 2555 has one of the better records a US domestic flight can show: 91.3% on time and 0.32% cancelled. That is a base rate, not a promise about any single day.
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 1133 on the same route64.2%
- 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
- 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.