Flight number record

DL 807

Delta Air Lines · Las Vegas to New York

Route: LAS → JFK
Departs: 15:45
Flights: 257
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 807, check with Delta Air Lines.

DL 807 lands a B, 2 points 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 an hour and a half on average. That is a workable record, not a spotless one. That rests on 257 flights, with a median arrival 14 minutes early.

On time

79.1%

Arrivals under 15 minutes late, of 249 completed flights

Avg delay

91 min

Across delayed arrivals only, not all flights

Cancelled

2.72%

National rate is 1.81%

1 hour+ late

10.8%

National rate is 8.1%

These figures cover 257 flights between July 2025 and June 2026. Beyond the headline rate, 10.8% 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 807 flies

DL 807 flies LAS to JFK without a single fixed slot. Its most common scheduled departure was 15:45, used on 50 of 257 flights, with 15:30 (36 flights) and 15:10 (35 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 15:4550 flights19.5%
Departs 15:3036 flights14.0%
Departs 15:1035 flights13.6%

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 15:45 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 72.4%, and DL 807 runs 7 points better at 79.1%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

DL 807 next to LAS to JFK

Every carrier on LAS to JFK combined arrived on time 81.3% of the time across 3,710 flights, so DL 807 is 2 points behind it. Delta flew 1,676 flights on the same city pair under all its flight numbers, including this one, and those ran 84.2% on time. Across its whole network Delta Air Lines managed 81.6%, which this flight trails by 3 points.

DL 807 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 807thin sample	257	79.1%	91 min	2.72%	B
All Delta Air Lines on LAS–JFK	1,676	84.2%	78 min	2.45%	B
All carriers on LAS–JFK	3,710	81.3%	87 min	2.40%	B
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 807 quarter by quarter

DL 807 did not run the same all year. Its best quarter was Jan–Mar 2026 at 85.7% on time and its weakest Jul–Sep 2025 at 71.4%, a swing of 14 points on roughly 86 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 flights71.4%
Oct–Dec 202579 flights81.6%
Jan–Mar 202674 flights85.7%
Apr–Jun 202612 flights—

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

By weekday, DL 807 ranged from 72.7% on Wednesday to 84.4% on Tuesday. With about 37 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 807 runs late

One category carries most of the weight here. Carrier accounts for 59% of the 4,728 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
59%
National Airspace System
22%
Late-arriving aircraft
16%
Extreme weather
2%

The largest share of delay minutes, 59%, 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 2,807 of the 4,728 delay minutes reported here. The split is drawn from 4,728 delay minutes reported on DL 807.

Cancellations run at 2.72%, against 1.81% nationally. That is roughly one flight in 40 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. 10.8% 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.

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 three other city pairs in the data, including JFK to LAS (177), ATL to CLT (16) and CLT to ATL (9), but none flew often enough under DL 807 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to LAS to JFK only.

One caution: this is a thin sample. 257 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 807

For a booking, the cancellation rate is the figure to plan around on DL 807: 2.72% of its 257 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