Flight number record
DL 1455
Delta Air Lines · Detroit to Orlando
- Route
- DTW → MCO
- Departs
- 08:45
- Flights
- 287
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 1455, check with Delta Air Lines.
DL 1455 earns an A+. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 9 points better than the national rate of 77.3%. When something does go wrong the average delay runs a little over an hour. That rests on 287 flights, with a median arrival 3 minutes early.
Set against the rest of the country, DL 1455's record is 9 points better than the US average of 77.3%. That gap is worth roughly 91 fewer late arrivals for every thousand flights.
Key figures
On time
86.4%
Arrivals under 15 minutes late, of 286 completed flights
Avg delay
71 min
Across delayed arrivals only, not all flights
Cancelled
0.35%
National rate is 1.89%
1 hour+ late
3.8%
National rate is 8.3%
These figures cover 287 flights between September 2025 and August 2026. The median arrival is 3 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 1455 flies
DL 1455 flies DTW to MCO without a single fixed slot. Its most common scheduled departure was 08:45, used on 96 of 287 flights, with 06:00 (38 flights) and 08:38 (34 flights) next.
- Departs 08:4596 flights33.4%
- Departs 06:0038 flights13.2%
- Departs 08:3834 flights11.8%
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 08:45 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 83.9%, and DL 1455 runs 3 points better at 86.4%. 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 1455 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 1455 is 11 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 5 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 1455thin sample | 287 | 86.4% | 71 min | 0.35% | 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 1455 quarter by quarter
DL 1455 did not run the same all year. Its best quarter was Jul–Sep 2025 at 100.0% on time and its weakest Oct–Dec 2025 at 82.0%, a swing of 18 points on roughly 57 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 202550 flights82.0%
- Jan–Mar 202666 flights84.8%
- Apr–Jun 202679 flights83.5%
- Jul–Sep 202662 flights88.5%
Scale runs 75% to 100%.
By weekday, DL 1455 did best on Friday at 95.1% on time and worst on Saturday at 78.0%. Each day rests on about 41 flights, so a gap of 17 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 1455 runs when it is late
The 39 late arrivals split 18 under half an hour, 10 between 30 and 60 minutes, and 11 an hour or more.
- 15+ min early56 flights19.6%
- Within 15 min191 flights66.8%
- 15–29 min late18 flights6.3%
- 30–59 min late10 flights3.5%
- 1–2 hours late9 flights3.1%
- 2+ hours late2 flights0.7%
Scale runs 0% to 100%.
Share of 286 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 35 departures that left 15 minutes late or more, only 4 made it up before arrival. 8 flights left on time and still arrived late.
The worst days
Worst days for DL 1455
The latest arrival of the period was on 23 December 2025, 14 hours 57 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). Three of the five worst days fell in January 2026.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 23 December 2025 | 14 hours 57 minutes | Carrier |
| 25 January 2026 | 5 hours 6 minutes | Carrier |
| 1 January 2026 | 1 hour 58 minutes | Carrier |
| 28 July 2026 | 1 hour 51 minutes | Late-arriving aircraft |
| 22 January 2026 | 1 hour 39 minutes | Carrier |
Delay causes
Why DL 1455 runs late
Carrier accounts for 76% of the 2,761 delay minutes carriers reported here, and the remaining four split what is left.
- 76%Carrier
- 16%National Airspace System
- 6%Late-arriving aircraft
- 1%Extreme weather
The largest share of delay minutes, 76%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 2,105 of the 2,761 delay minutes reported here. The split is drawn from 2,761 delay minutes reported on DL 1455.
Cancellations are rare at 0.35%, 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 3.8% 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.
The same number turns up on three other city pairs in the data, including MCO to DTW (242), MSP to ORD (1) and ORD to MSP (1), but none flew often enough under DL 1455 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. 287 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 1455
For a booking, DL 1455 has one of the better records a US domestic flight can show: 86.4% on time and 0.35% 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 2555 on the same route91.3%
- Delta Air Lines 1133 on the same route64.2%
- 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.