Flight number record
DL 958
Delta Air Lines · Los Angeles to New York
- Route
- LAX → JFK
- Departs
- 09:05
- Flights
- 364
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 958, check with Delta Air Lines.
DL 958 lands a B−, 5 points better than the national rate of 77.3%. About one flight in six arrives 15 minutes late or worse, and those flights are late by an hour and a half on average. That rests on 364 flights, with a median arrival 15 minutes early.
Set against the rest of the country, DL 958's record is 5 points better than the US average of 77.3%. That gap is worth roughly 51 fewer late arrivals for every thousand flights.
Key figures
On time
82.4%
Arrivals under 15 minutes late, of 346 completed flights
Avg delay
97 min
Across delayed arrivals only, not all flights
Cancelled
3.85%
National rate is 1.89%
1 hour+ late
7.2%
National rate is 8.3%
These figures cover 364 flights between September 2025 and August 2026. The median arrival is 15 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.
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Schedule
When DL 958 flies
DL 958 flies LAX to JFK without a single fixed slot. Its most common scheduled departure was 09:05, used on 61 of 364 flights, with 08:10 (56 flights) and 09:30 (39 flights) next.
- Departs 09:0561 flights16.8%
- Departs 08:1056 flights15.4%
- Departs 09:3039 flights10.7%
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 09:05 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 83.9%, and DL 958 runs level with that at 82.4%. 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 958 next to LAX to JFK
Every carrier on LAX to JFK combined arrived on time 77.5% of the time across 10,289 flights, so DL 958 is 5 points ahead of it. Delta flew 3,367 flights on the same city pair under all its flight numbers, including this one, and those ran 79.4% on time. Across its whole network Delta Air Lines managed 81.1%, close to this flight's figure.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 958thin sample | 364 | 82.4% | 97 min | 3.85% | B− |
| All Delta Air Lines on LAX–JFK | 3,367 | 79.4% | 87 min | 2.61% | B |
| All carriers on LAX–JFK | 10,289 | 77.5% | 90 min | 2.90% | B |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 958 quarter by quarter
Quarter by quarter DL 958 held fairly steady: 86.7% in Jul–Sep 2025, 85.9% in Oct–Dec 2025, 84.7% in Jan–Mar 2026, 77.0% in Apr–Jun 2026 and 78.8% in Jul–Sep 2026. A spread of 10 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202530 flights86.7%
- Oct–Dec 202592 flights85.9%
- Jan–Mar 202690 flights84.7%
- Apr–Jun 202690 flights77.0%
- Jul–Sep 202662 flights78.8%
Scale runs 70% to 90%.
By weekday, DL 958 did best on Sunday at 89.4% on time and worst on Tuesday at 74.5%. Each day rests on about 52 flights, so a gap of 15 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 958 runs when it is late
DL 958 often beats the schedule: 175 of 346 completed flights, 51%, arrived 15 minutes or more early. The 61 late arrivals split 18 under half an hour, 18 between 30 and 60 minutes, and 25 an hour or more.
- 15+ min early175 flights50.6%
- Within 15 min110 flights31.8%
- 15–29 min late18 flights5.2%
- 30–59 min late18 flights5.2%
- 1–2 hours late10 flights2.9%
- 2+ hours late15 flights4.3%
Scale runs 0% to 100%.
Share of 346 completed flights by arrival against schedule.
15 of 61 late departures made up the time and arrived on time, 25% of them. 15 flights left on time and still arrived late.
The worst days
Worst days for DL 958
The latest arrival of the period was on 24 July 2026, 13 hours 7 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 24 July 2026 | 13 hours 7 minutes | Carrier |
| 7 May 2026 | 5 hours 6 minutes | Carrier |
| 16 June 2026 | 5 hours 3 minutes | Carrier |
| 27 February 2026 | 4 hours 54 minutes | Late-arriving aircraft |
| 21 February 2026 | 4 hours 52 minutes | Carrier |
Delay causes
Why DL 958 runs late
Carrier accounts for 78% of the 5,884 delay minutes carriers reported here, and the remaining four split what is left.
- 78%Carrier
- 12%National Airspace System
- 9%Late-arriving aircraft
The largest share of delay minutes, 78%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 4,603 of the 5,884 delay minutes reported here. The split is drawn from 5,884 delay minutes reported on DL 958.
Cancellations run at 3.85%, against 1.89% nationally. That is about one flight in 25 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
7.2% 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 an hour and a half, which a normal layover absorbs.
At 2,475 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 958 in the data flew LAX to JFK. 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 958
For a booking, the cancellation rate is the figure to plan around on DL 958: 3.85% of its 364 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.
Related
Where to go next
- LAX to JFK, every carrier and departure
- JFK to LAX, the return direction
- Delta Air Lines 934 on the same route86.7%
- Delta Air Lines 960 on the same route83.1%
- American Airlines 118 on the same route83.6%
- American Airlines 307 on the same route74.6%
- American Airlines 274 on the same route57.9%
- American Airlines 238 on the same route67.0%
- Los Angeles International (LAX) delay statistics
- John F. Kennedy International (JFK) 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
- What a cancellation rate actually tells you (and what it hides)
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.