Flight number record

DL 1519

Delta Air Lines · Minneapolis to Detroit

Route: MSP → DTW
Departs: 12:45
Flights: 365
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 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 11 points better than the national rate of 77.6%. 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 11 points better than the US average of 77.6%. That gap is worth roughly 114 fewer late arrivals for every thousand flights.

On time

89.0%

Arrivals under 15 minutes late, of 362 completed flights

Avg delay

61 min

Across delayed arrivals only, not all flights

Cancelled

0.55%

National rate is 1.81%

1 hour+ late

3.3%

National rate is 8.1%

These figures cover 365 flights between July 2025 and June 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.

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 215 of 365 flights, with 12:50 (94 flights) and 12:55 (42 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 12:45215 flights58.9%
Departs 12:5094 flights25.8%
Departs 12:5542 flights11.5%

Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.

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 78.8%, and DL 1519 runs 10 points better at 89.0%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

DL 1519 next to MSP to DTW

Every carrier on MSP to DTW combined arrived on time 82.3% of the time across 1,932 flights, so DL 1519 is 7 points ahead of it. Delta flew 1,887 flights on the same city pair under all its flight numbers, including this one, and those ran 82.1% on time. Across its whole network Delta Air Lines managed 81.6%, which this flight beats by 7 points.

DL 1519 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 1519	365	89.0%	61 min	0.55%	A+
All Delta Air Lines on MSP–DTW	1,887	82.1%	65 min	0.53%	B+
All carriers on MSP–DTW	1,932	82.3%	66 min	0.52%	B+
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 1519 quarter by quarter

DL 1519 did not run the same all year. Its best quarter was Apr–Jun 2026 at 94.5% on time and its weakest Jan–Mar 2026 at 83.1%, a swing of 11 points on roughly 91 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 202592 flights92.3%
Oct–Dec 202592 flights85.7%
Jan–Mar 202690 flights83.1%
Apr–Jun 202691 flights94.5%

Scale runs 75% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, DL 1519 did best on Thursday at 96.2% on time and worst on Saturday at 82.7%. Each day rests on about 52 flights, so a gap of 14 points is worth noticing but could still narrow in another year.

Delay causes

Why DL 1519 runs late

One category carries most of the weight here. Carrier accounts for 61% of the 2,437 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.

Carrier
61%
National Airspace System
27%
Late-arriving aircraft
11%
Extreme weather
1%

The largest share of delay minutes, 61%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 1,479 of the 2,437 delay minutes reported here. The split is drawn from 2,437 delay minutes reported on DL 1519.

Cancellations are rare at 0.55%, below the national 1.81% 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 8.1% 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. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.

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: 89.0% on time and 0.55% cancelled. That is a base rate, not a promise about any single day.

Where to go next

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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.

Key figures