Flight number record
DL 1009
Delta Air Lines · Newark to Salt Lake City
- Route
- EWR → SLC
- Departs
- 07:15
- Flights
- 365
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 1009, check with Delta Air Lines.
DL 1009 lands a B, 2 points better than the national rate of 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That rests on 365 flights, with a median arrival 1 minute early.
Key figures
On time
79.3%
Arrivals under 15 minutes late, of 357 completed flights
Avg delay
72 min
Across delayed arrivals only, not all flights
Cancelled
1.92%
National rate is 1.89%
1 hour+ late
7.6%
National rate is 8.3%
These figures cover 365 flights between September 2025 and August 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.
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Schedule
When DL 1009 flies
DL 1009 flies EWR to SLC without a single fixed slot. Its most common scheduled departure was 07:15, used on 164 of 365 flights, with 07:00 (108 flights) next.
- Departs 07:15164 flights44.9%
- Departs 07:00108 flights29.6%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 07:15 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 10 points worse at 79.3%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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Against the route
DL 1009 next to EWR to SLC
Every carrier on EWR to SLC combined arrived on time 76.9% of the time across 1,338 flights, so DL 1009 is 2 points ahead of it. Delta flew 723 flights on the same city pair under all its flight numbers, including this one, and those ran 76.7% on time. Across its whole network Delta Air Lines managed 81.1%, which this flight trails by 2 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 1009 | 365 | 79.3% | 72 min | 1.92% | B |
| All Delta Air Lines on EWR–SLC | 723 | 76.7% | 89 min | 2.35% | B |
| All carriers on EWR–SLC | 1,338 | 76.9% | 76 min | 2.24% | B |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 1009 quarter by quarter
DL 1009 did not run the same all year. Its best quarter was Jul–Sep 2025 at 93.3% on time and its weakest Oct–Dec 2025 at 67.4%, a swing of 26 points on roughly 73 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 202530 flights93.3%
- Oct–Dec 202592 flights67.4%
- Jan–Mar 202690 flights73.6%
- Apr–Jun 202691 flights88.9%
- Jul–Sep 202662 flights83.6%
Scale runs 60% to 100%.
By weekday, DL 1009 did best on Friday at 88.2% on time and worst on Saturday at 66.0%. Each day rests on about 52 flights, so a gap of 22 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 1009 runs when it is late
The 74 late arrivals split 25 under half an hour, 22 between 30 and 60 minutes, and 27 an hour or more.
- 15+ min early59 flights16.5%
- Within 15 min224 flights62.7%
- 15–29 min late25 flights7.0%
- 30–59 min late22 flights6.2%
- 1–2 hours late15 flights4.2%
- 2+ hours late12 flights3.4%
Scale runs 0% to 100%.
Share of 357 completed flights by arrival against schedule.
A late pushback is often recovered here: of 58 departures that left 15 minutes late or more, 18 still arrived on time. In the other direction, 34 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at SLC.
The worst days
Worst days for DL 1009
The latest arrival of the period was on 7 November 2025, 6 hours 2 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). Three of the five worst days fell in November 2025.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 7 November 2025 | 6 hours 2 minutes | Carrier |
| 13 November 2025 | 5 hours 8 minutes | Carrier |
| 15 November 2025 | 4 hours 42 minutes | Carrier |
| 27 December 2025 | 4 hours 7 minutes | Late-arriving aircraft |
| 27 January 2026 | 3 hours 39 minutes | Carrier |
Delay causes
Why DL 1009 runs late
Carrier accounts for 59% of the 5,289 delay minutes carriers reported here, and the remaining four split what is left.
- 59%Carrier
- 30%National Airspace System
- 8%Late-arriving aircraft
- 3%Extreme weather
The largest share of delay minutes, 59%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 3,110 of the 5,289 delay minutes reported here. The split is drawn from 5,289 delay minutes reported on DL 1009.
Cancellations sit at 1.92% against a national 1.89%, which is ordinary. Diversions add another 0.27%.
Connections and routes
What a delay on this flight costs
7.6% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over 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 365 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. 365 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 79.3% on time with 1.92% cancelled over 365 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- EWR to SLC, every carrier and departure
- SLC to EWR, the return direction
- Newark Liberty International (EWR) delay statistics
- Salt Lake City International (SLC) delay statistics
- Delta Air Lines on-time record
- Every Delta Air Lines flight number with a record
- The most and least reliable flight numbers in the US
- Worst months to fly in the US, ranked by the data
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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.