Flight number record
DL 1145
Delta Air Lines · Detroit to Myrtle Beach
- Route
- DTW → MYR
- Departs
- 08:40
- Flights
- 302
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 1145, check with Delta Air Lines.
DL 1145 earns a B+. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 7 points better than the national rate of 77.3%. When something does go wrong the average delay runs roughly 50 minutes. That rests on 302 flights, with a median arrival 8 minutes early.
Set against the rest of the country, DL 1145's record is 7 points better than the US average of 77.3%. That gap is worth roughly 73 fewer late arrivals for every thousand flights.
Key figures
On time
84.6%
Arrivals under 15 minutes late, of 298 completed flights
Avg delay
48 min
Across delayed arrivals only, not all flights
Cancelled
0.99%
National rate is 1.89%
1 hour+ late
4.4%
National rate is 8.3%
These figures cover 302 flights between September 2025 and August 2026. The median arrival is 8 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 1145 flies
DL 1145 flies DTW to MYR without a single fixed slot. Its most common scheduled departure was 08:40, used on 78 of 302 flights, with 08:45 (48 flights) and 08:38 (33 flights) next.
- Departs 08:4078 flights25.8%
- Departs 08:4548 flights15.9%
- Departs 08:3833 flights10.9%
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 08:40 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 83.9%, and DL 1145 runs level with that at 84.6%. 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 1145 next to DTW to MYR
Every carrier on DTW to MYR combined arrived on time 85.5% of the time across 352 flights, so DL 1145 is about level with it. Across its whole network Delta Air Lines managed 81.1%, which this flight beats by 4 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 1145thin sample | 302 | 84.6% | 48 min | 0.99% | B+ |
| All Delta Air Lines on DTW–MYRthin sample | 330 | 84.9% | 48 min | 1.52% | B |
| All carriers on DTW–MYRthin sample | 352 | 85.5% | 47 min | 1.42% | A |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 1145 quarter by quarter
Quarter by quarter DL 1145 held fairly steady: 83.3% in Jul–Sep 2025, 84.3% in Oct–Dec 2025, 86.8% in Apr–Jun 2026 and 80.0% in Jul–Sep 2026. A spread of 7 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202530 flights83.3%
- Oct–Dec 202591 flights84.3%
- Jan–Mar 202628 flights—
- Apr–Jun 202691 flights86.8%
- Jul–Sep 202662 flights80.0%
Scale runs 70% to 90%. Rows with fewer than 30 flights show a dash.
By weekday, DL 1145 did best on Tuesday at 93.0% on time and worst on Sunday at 76.7%. Each day rests on about 43 flights, so a gap of 16 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 1145 runs when it is late
The 46 late arrivals split 20 under half an hour, 13 between 30 and 60 minutes, and 13 an hour or more.
- 15+ min early73 flights24.5%
- Within 15 min179 flights60.1%
- 15–29 min late20 flights6.7%
- 30–59 min late13 flights4.4%
- 1–2 hours late11 flights3.7%
- 2+ hours late2 flights0.7%
Scale runs 0% to 100%.
Share of 298 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 3 made it up before arrival. 14 flights left on time and still arrived late.
The worst days
Worst days for DL 1145
The latest arrival of the period was on 5 December 2025, 2 hours 51 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. On three of the five worst days the largest share was filed as carrier-caused (crew, maintenance, fuelling, baggage).
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 5 December 2025 | 2 hours 51 minutes | Late-arriving aircraft |
| 5 July 2026 | 2 hours 38 minutes | Carrier |
| 19 September 2025 | 1 hour 53 minutes | Carrier |
| 29 July 2026 | 1 hour 38 minutes | Late-arriving aircraft |
| 22 June 2026 | 1 hour 24 minutes | Carrier |
Delay causes
Why DL 1145 runs late
Carrier accounts for 52% of the 2,219 delay minutes carriers reported here, and the remaining four split what is left.
- 52%Carrier
- 26%Late-arriving aircraft
- 20%National Airspace System
- 1%Extreme weather
The largest share of delay minutes, 52%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,161 of the 2,219 delay minutes reported here. The split is drawn from 2,219 delay minutes reported on DL 1145.
Cancellations sit at 0.99% against a national 1.89%, which is ordinary. Diversions add another 0.33%.
Connections and routes
What a delay on this flight costs
Badly late arrivals are rare here: only 4.4% 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 636 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.
DL 1145 is not only a DTW to MYR flight. It also flew MYR to DTW (302 flights, 85.2% 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. 302 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 |
|---|---|---|---|---|---|
| MYR to DTWthin sample | 302 | 85.2% | 88 min | 0.99% | A+ |
What to do with this
Booking DL 1145
For a booking, read DL 1145 as 84.6% on time with 0.99% cancelled over 302 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- Detroit Metropolitan Wayne County (DTW) 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.