Flight number record
DL 1519
Delta Air Lines · Minneapolis to Detroit
- Route
- MSP → DTW
- Departs
- 12:45
- Flights
- 365
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 1519, check with Delta Air Lines.
DL 1519 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 12 points better than the national rate of 77.3%. When something does go wrong the average delay runs about an hour. That rests on 365 flights, with a median arrival 10 minutes early.
Set against the rest of the country, DL 1519's record is 12 points better than the US average of 77.3%. That gap is worth roughly 120 fewer late arrivals for every thousand flights.
Key figures
On time
89.3%
Arrivals under 15 minutes late, of 363 completed flights
Avg delay
62 min
Across delayed arrivals only, not all flights
Cancelled
0.55%
National rate is 1.89%
1 hour+ late
3.3%
National rate is 8.3%
These figures cover 365 flights between September 2025 and August 2026. The median arrival is 10 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 1519 flies
DL 1519 flies MSP to DTW without a single fixed slot. Its most common scheduled departure was 12:45, used on 192 of 365 flights, with 12:55 (67 flights) and 12:50 (59 flights) next.
- Departs 12:45192 flights52.6%
- Departs 12:5567 flights18.4%
- Departs 12:5059 flights16.2%
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 12:45 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.3%, and DL 1519 runs 11 points better at 89.3%. 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 1519 next to MSP to DTW
Every carrier on MSP to DTW combined arrived on time 82.7% of the time across 1,884 flights, so DL 1519 is 7 points ahead of it. Delta flew 1,881 flights on the same city pair under all its flight numbers, including this one, and those ran 82.8% on time. Across its whole network Delta Air Lines managed 81.1%, which this flight beats by 8 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 1519 | 365 | 89.3% | 62 min | 0.55% | A+ |
| All Delta Air Lines on MSP–DTW | 1,881 | 82.8% | 59 min | 0.58% | B+ |
| All carriers on MSP–DTW | 1,884 | 82.7% | 59 min | 0.58% | B+ |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 1519 quarter by quarter
DL 1519 did not run the same all year. Its best quarter was Jul–Sep 2026 at 95.2% on time and its weakest Jan–Mar 2026 at 83.1%, a swing of 12 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 flights90.0%
- Oct–Dec 202592 flights85.7%
- Jan–Mar 202690 flights83.1%
- Apr–Jun 202691 flights94.5%
- Jul–Sep 202662 flights95.2%
Scale runs 75% to 100%.
By weekday, DL 1519 did best on Thursday at 96.2% on time and worst on Saturday at 80.8%. Each day rests on about 52 flights, so a gap of 15 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 1519 runs when it is late
DL 1519 often beats the schedule: 92 of 363 completed flights, 25%, arrived 15 minutes or more early. Most of the lateness is short. 23 of the 39 late arrivals were under half an hour behind, and 12 reached an hour or more.
- 15+ min early92 flights25.3%
- Within 15 min232 flights63.9%
- 15–29 min late23 flights6.3%
- 30–59 min late4 flights1.1%
- 1–2 hours late6 flights1.7%
- 2+ hours late6 flights1.7%
Scale runs 0% to 100%.
Share of 363 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 26 departures that left 15 minutes late or more, only 3 made it up before arrival. 16 flights left on time and still arrived late.
The worst days
Worst days for DL 1519
The latest arrival of the period was on 28 December 2025, 5 hours 7 minutes behind schedule; most of its delay minutes were filed as national airspace system delay. 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 |
|---|---|---|
| 28 December 2025 | 5 hours 7 minutes | National Airspace System |
| 28 March 2026 | 4 hours 32 minutes | Carrier |
| 28 February 2026 | 4 hours 15 minutes | Carrier |
| 22 December 2025 | 2 hours 58 minutes | Late-arriving aircraft |
| 17 January 2026 | 2 hours 38 minutes | Carrier |
Delay causes
Why DL 1519 runs late
Carrier accounts for 60% of the 2,397 delay minutes carriers reported here, and the remaining four split what is left.
- 60%Carrier
- 25%National Airspace System
- 13%Late-arriving aircraft
- 1%Extreme weather
The largest share of delay minutes, 60%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,448 of the 2,397 delay minutes reported here. The split is drawn from 2,397 delay minutes reported on DL 1519.
Cancellations are rare at 0.55%, 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 3.3% 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 528 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 365 flights under DL 1519 in the data flew MSP to DTW. 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. 365 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 1519
For a booking, DL 1519 has one of the better records a US domestic flight can show: 89.3% on time and 0.55% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- MSP to DTW, every carrier and departure
- DTW to MSP, the return direction
- Delta Air Lines 1461 on the same route93.6%
- Delta Air Lines 1476 on the same route78.8%
- Delta Air Lines 1484 on the same route66.2%
- Delta Air Lines 1433 on the same route88.1%
- Minneapolis-St Paul International (MSP) delay statistics
- 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.