Flight number record

DL 806

Delta Air Lines · New York to Las Vegas

Route: JFK → LAS
Departs: 16:45
Flights: 349
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 806, check with Delta Air Lines.

DL 806 lands a B, about a point better than the national rate of 77.6%. About one flight in five arrives 15 minutes late or worse, and those flights are late by about an hour on average. That is a workable record, not a spotless one. That rests on 349 flights, with a median arrival 10 minutes early.

On time

79.0%

Arrivals under 15 minutes late, of 343 completed flights

Avg delay

60 min

Across delayed arrivals only, not all flights

Cancelled

1.72%

National rate is 1.81%

1 hour+ late

7.3%

National rate is 8.1%

These figures cover 349 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 806 flies

DL 806 flies JFK to LAS without a single fixed slot. Its most common scheduled departure was 16:45, used on 70 of 349 flights, with 16:10 (62 flights) and 16:59 (43 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 16:4570 flights20.1%
Departs 16:1062 flights17.8%
Departs 16:5943 flights12.3%

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 16:45 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 72.4%, and DL 806 runs 7 points better at 79.0%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

DL 806 next to JFK to LAS

Every carrier on JFK to LAS combined arrived on time 79.9% of the time across 3,714 flights, so DL 806 is about level with it. Delta flew 1,676 flights on the same city pair under all its flight numbers, including this one, and those ran 78.5% on time. Across its whole network Delta Air Lines managed 81.6%, which this flight trails by 3 points.

DL 806 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 806thin sample	349	79.0%	60 min	1.72%	B
All Delta Air Lines on JFK–LAS	1,676	78.5%	53 min	2.33%	B
All carriers on JFK–LAS	3,714	79.9%	64 min	2.18%	B
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 806 quarter by quarter

Quarter by quarter DL 806 held fairly steady: 74.7% in Jul–Sep 2025, 76.2% in Oct–Dec 2025, 81.9% in Jan–Mar 2026 and 83.1% 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 flights74.7%
Oct–Dec 202580 flights76.2%
Jan–Mar 202686 flights81.9%
Apr–Jun 202691 flights83.1%

Scale runs 65% to 90%. Rows with fewer than 30 flights show a dash.

By weekday, DL 806 ranged from 75.5% on Monday to 85.7% on Friday. With about 50 flights behind each day, a spread of 10 points is inside normal variation, so the day you fly is not worth changing for this flight.

Delay causes

Why DL 806 runs late

Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 4,341 reported delay minutes.

National Airspace System
38%
Late-arriving aircraft
30%
Carrier
28%
Extreme weather
4%

38% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 1,646 minutes out of 4,341, against a national NAS share of 21%. The split is drawn from 4,341 delay minutes reported on DL 806.

Cancellations sit at 1.72% against a national 1.81%, which is ordinary. Diversions add another 0.00%.

Connections and routes

What a delay on this flight costs

7.3% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about an hour, which a normal layover absorbs.

At 2,248 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.

The same number turns up on one other city pair in the data, including ATL to DAY (16), but none flew often enough under DL 806 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to JFK to LAS only.

One caution: this is a thin sample. 349 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 806

For a booking, read DL 806 as 79.0% on time with 1.72% cancelled over 349 flights. Those are rates from the past twelve months, not a forecast for any particular 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