Flight number record

DL 864

Delta Air Lines · Las Vegas to Detroit

Route: LAS → DTW
Departs: 06:00
Flights: 359
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 864, check with Delta Air Lines.

DL 864 earns an A+. Nearly every flight arrives inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 17 points better than the national rate of 77.6%. When something does go wrong the average delay runs a little over an hour. That rests on 359 flights, with a median arrival 10 minutes early.

Set against the rest of the country, DL 864's record is 17 points better than the US average of 77.6%. That gap is worth roughly 168 fewer late arrivals for every thousand flights.

On time

94.4%

Arrivals under 15 minutes late, of 357 completed flights

Avg delay

73 min

Across delayed arrivals only, not all flights

Cancelled

0.28%

National rate is 1.81%

1 hour+ late

2.0%

National rate is 8.1%

These figures cover 359 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 864 flies

DL 864 flies LAS to DTW without a single fixed slot. Its most common scheduled departure was 06:00, used on 266 of 359 flights, with 06:05 (45 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 06:00266 flights74.1%
Departs 06:0545 flights12.5%

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 06:00 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and DL 864 runs 5 points better at 94.4%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

Against the route

DL 864 next to LAS to DTW

Every carrier on LAS to DTW combined arrived on time 81.7% of the time across 2,838 flights, so DL 864 is 13 points ahead of it. Delta flew 1,894 flights on the same city pair under all its flight numbers, including this one, and those ran 84.4% on time. Across its whole network Delta Air Lines managed 81.6%, which this flight beats by 13 points.

DL 864 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 864thin sample	359	94.4%	73 min	0.28%	A+
All Delta Air Lines on LAS–DTW	1,894	84.4%	74 min	0.53%	B+
All carriers on LAS–DTW	2,838	81.7%	71 min	0.60%	B+
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 864 quarter by quarter

Quarter by quarter DL 864 held fairly steady: 94.6% in Jul–Sep 2025, 90.1% in Oct–Dec 2025, 95.3% in Jan–Mar 2026 and 97.7% in Apr–Jun 2026. A spread of 8 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202592 flights94.6%
Oct–Dec 202592 flights90.1%
Jan–Mar 202686 flights95.3%
Apr–Jun 202689 flights97.7%

Scale runs 80% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, DL 864 ranged from 88.2% on Monday to 100.0% on Tuesday. With about 51 flights behind each day, a spread of 12 points is inside normal variation, so the day you fly is not worth changing for this flight.

Delay causes

Why DL 864 runs late

One category carries most of the weight here. Carrier accounts for 67% of the 1,458 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
67%
National Airspace System
21%
Late-arriving aircraft
12%

The largest share of delay minutes, 67%, 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 984 of the 1,458 delay minutes reported here. The split is drawn from 1,458 delay minutes reported on DL 864.

Cancellations are rare at 0.28%, 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 2.0% 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.

At 1,749 miles this is transcontinental flying, and long routes get a quiet structural advantage. Scheduled block time on a flight this length carries more padding in absolute minutes, so a twenty-minute late departure often still becomes an on-time arrival. Read the on-time rate here as slightly flattering next to a short-haul route with the same operational quality.

Every one of the 359 flights under DL 864 in the data flew LAS 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. 359 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 864

For a booking, DL 864 has one of the better records a US domestic flight can show: 94.4% on time and 0.28% 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