Flight number record

DL 1014

Delta Air Lines · New York to Detroit

Route: LGA → DTW
Departs: 21:00
Flights: 298
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 1014, check with Delta Air Lines.

DL 1014 draws a C−. About one flight in three arrives at least 15 minutes late, and the typical late arrival is an hour and a half behind schedule. Build slack into anything you connect to. That rests on 298 flights, with a median arrival 11 minutes early.

The national on-time rate over the same period is 77.6%, so DL 1014 runs 10 points behind the country as a whole. Across a thousand flights that is about 102 extra late arrivals.

On time

67.4%

Arrivals under 15 minutes late, of 282 completed flights

Avg delay

85 min

Across delayed arrivals only, not all flights

Cancelled

5.37%

National rate is 1.81%

1 hour+ late

15.2%

National rate is 8.1%

These figures cover 298 flights between July 2025 and June 2026. Beyond the headline rate, 15.2% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.

Schedule

When DL 1014 flies

DL 1014 flies LGA to DTW without a single fixed slot. Its most common scheduled departure was 21:00, used on 52 of 298 flights, with 20:00 (51 flights) and 20:12 (48 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 21:0052 flights17.4%
Departs 20:0051 flights17.1%
Departs 20:1248 flights16.1%

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 21:00 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.5%, and DL 1014 runs 3 points worse at 67.4%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.

Against the route

DL 1014 next to LGA to DTW

Every carrier on LGA to DTW combined arrived on time 78.0% of the time across 4,011 flights, so DL 1014 is 11 points behind it. Delta flew 1,980 flights on the same city pair under all its flight numbers, including this one, and those ran 81.1% on time. Across its whole network Delta Air Lines managed 81.6%, which this flight trails by 14 points.

DL 1014 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 1014thin sample	298	67.4%	85 min	5.37%	C−
All Delta Air Lines on LGA–DTW	1,980	81.1%	85 min	3.54%	B−
All carriers on LGA–DTW	4,011	78.0%	82 min	4.94%	B−
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 1014 quarter by quarter

DL 1014 did not run the same all year. Its best quarter was Apr–Jun 2026 at 77.0% on time and its weakest Oct–Dec 2025 at 51.5%, a swing of 26 points on roughly 75 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 202578 flights66.2%
Oct–Dec 202568 flights51.5%
Jan–Mar 202674 flights73.5%
Apr–Jun 202678 flights77.0%

Scale runs 45% to 80%. Rows with fewer than 30 flights show a dash.

By weekday, DL 1014 did best on Tuesday at 72.3% on time and worst on Thursday at 58.3%. Each day rests on about 43 flights, so a gap of 14 points is worth noticing but could still narrow in another year.

Delay causes

Why DL 1014 runs late

One category carries most of the weight here. Late-arriving aircraft accounts for 49% of the 7,861 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.

Late-arriving aircraft
49%
Carrier
38%
National Airspace System
13%

49% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 7,861 reported delay minutes here, that single category outweighs weather by 49 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 7,861 delay minutes reported on DL 1014.

Cancellations run at 5.37%, against 1.81% nationally. That is about one flight in twenty cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.

Connections and routes

What a delay on this flight costs

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 15.2% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.

The 502 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.

The same number turns up on six other city pairs in the data, including JFK to SAT (13), SAV to DTW (3) and DTW to SAV (3), but none flew often enough under DL 1014 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to LGA to DTW only.

One caution: this is a thin sample. 298 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 1014

For a booking, the cancellation rate is the figure to plan around on DL 1014: 5.37% of its 298 scheduled flights did not operate. A late arrival costs an hour and a half, but a cancellation costs the day, so leave a later option open.

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