Flight number record

DL 1009

Delta Air Lines · Newark to Salt Lake City

Route: EWR → SLC
Departs: 07:00
Flights: 364
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s DL 1009, check with Delta Air Lines.

DL 1009 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 364 flights, with a median arrival right on schedule.

On time

78.7%

Arrivals under 15 minutes late, of 357 completed flights

Avg delay

67 min

Across delayed arrivals only, not all flights

Cancelled

1.65%

National rate is 1.81%

1 hour+ late

7.0%

National rate is 8.1%

These figures cover 364 flights between July 2025 and June 2026. On-time means an arrival less than 15 minutes after the scheduled gate time, the same threshold the Department of Transportation uses in its own reports. Cancelled and diverted flights are excluded from the on-time rate and counted separately, which is why the cancellation column matters on its own.

Schedule

When DL 1009 flies

DL 1009 flies EWR to SLC without a single fixed slot. Its most common scheduled departure was 07:00, used on 134 of 364 flights, with 07:15 (102 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 07:00134 flights36.8%
Departs 07:15102 flights28.0%

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 07:00 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and DL 1009 runs 11 points worse at 78.7%. 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 1009 next to EWR to SLC

Every carrier on EWR to SLC combined arrived on time 76.6% of the time across 1,337 flights, so DL 1009 is 2 points ahead of it. Delta flew 722 flights on the same city pair under all its flight numbers, including this one, and those ran 75.6% on time. Across its whole network Delta Air Lines managed 81.6%, which this flight trails by 3 points.

DL 1009 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
DL 1009thin sample	364	78.7%	67 min	1.65%	B
All Delta Air Lines on EWR–SLC	722	75.6%	88 min	2.22%	B
All carriers on EWR–SLC	1,337	76.6%	75 min	2.17%	B
Delta Air Lines, whole network	1,038,570	81.6%	71 min	1.62%	B

Across the year

DL 1009 quarter by quarter

DL 1009 did not run the same all year. Its best quarter was Apr–Jun 2026 at 88.9% on time and its weakest Oct–Dec 2025 at 67.4%, a swing of 22 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 202591 flights84.6%
Oct–Dec 202592 flights67.4%
Jan–Mar 202690 flights73.6%
Apr–Jun 202691 flights88.9%

Scale runs 60% to 95%. Rows with fewer than 30 flights show a dash.

By weekday, DL 1009 did best on Friday at 86.5% on time and worst on Saturday at 64.0%. Each day rests on about 52 flights, so a gap of 23 points is worth noticing but could still narrow in another year.

Delay causes

Why DL 1009 runs late

One category carries most of the weight here. Carrier accounts for 55% of the 5,101 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
55%
National Airspace System
35%
Late-arriving aircraft
7%
Extreme weather
3%

35% 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 1,800 minutes out of 5,101, against a national NAS share of 21%. The split is drawn from 5,101 delay minutes reported on DL 1009.

Cancellations sit at 1.65% against a national 1.81%, which is ordinary. Diversions add another 0.27%.

Connections and routes

What a delay on this flight costs

7.0% 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 1,969 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 364 flights under DL 1009 in the data flew EWR to SLC. 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. 364 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 1009

For a booking, read DL 1009 as 78.7% on time with 1.65% cancelled over 364 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