Flight number record
DL 393
Delta Air Lines · Cincinnati to Los Angeles
- Route
- CVG → LAX
- Departs
- 06:30
- Flights
- 337
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 393, check with Delta Air Lines.
DL 393 earns a B. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 8 points better than the national rate of 77.3%. When something does go wrong the average delay runs about an hour. That rests on 337 flights, with a median arrival 9 minutes early.
Set against the rest of the country, DL 393's record is 8 points better than the US average of 77.3%. That gap is worth roughly 76 fewer late arrivals for every thousand flights.
Key figures
On time
84.9%
Arrivals under 15 minutes late, of 331 completed flights
Avg delay
58 min
Across delayed arrivals only, not all flights
Cancelled
1.78%
National rate is 1.89%
1 hour+ late
3.6%
National rate is 8.3%
These figures cover 337 flights between September 2025 and August 2026. The median arrival is 9 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 393 flies
DL 393 flies CVG to LAX without a single fixed slot. Its most common scheduled departure was 06:30, used on 135 of 337 flights, with 06:15 (55 flights) and 07:00 (48 flights) next.
- Departs 06:30135 flights40.1%
- Departs 06:1555 flights16.3%
- Departs 07:0048 flights14.2%
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 06:30 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and DL 393 runs 4 points worse at 84.9%. 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 393 next to CVG to LAX
Every carrier on CVG to LAX combined arrived on time 83.8% of the time across 351 flights, so DL 393 is about level with it. Across its whole network Delta Air Lines managed 81.1%, which this flight beats by 4 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 393thin sample | 337 | 84.9% | 58 min | 1.78% | B |
| All Delta Air Lines on CVG–LAXthin sample | 337 | 84.9% | 58 min | 1.78% | B |
| All carriers on CVG–LAXthin sample | 351 | 83.8% | 62 min | 1.71% | B |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 393 quarter by quarter
Quarter by quarter DL 393 held fairly steady: 86.2% in Oct–Dec 2025, 81.4% in Jan–Mar 2026, 83.9% in Apr–Jun 2026 and 88.5% in Jul–Sep 2026. A spread of 7 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202526 flights—
- Oct–Dec 202581 flights86.2%
- Jan–Mar 202689 flights81.4%
- Apr–Jun 202688 flights83.9%
- Jul–Sep 202653 flights88.5%
Scale runs 75% to 95%. Rows with fewer than 30 flights show a dash.
By weekday, DL 393 did best on Wednesday at 90.4% on time and worst on Friday at 78.4%. Each day rests on about 48 flights, so a gap of 12 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 393 runs when it is late
DL 393 often beats the schedule: 100 of 331 completed flights, 30%, arrived 15 minutes or more early. The 50 late arrivals split 22 under half an hour, 16 between 30 and 60 minutes, and 12 an hour or more.
- 15+ min early100 flights30.2%
- Within 15 min181 flights54.7%
- 15–29 min late22 flights6.6%
- 30–59 min late16 flights4.8%
- 1–2 hours late6 flights1.8%
- 2+ hours late6 flights1.8%
Scale runs 0% to 100%.
Share of 331 completed flights by arrival against schedule.
15 of 51 late departures made up the time and arrived on time, 29% of them. 14 flights left on time and still arrived late.
The worst days
Worst days for DL 393
The latest arrival of the period was on 9 January 2026, 5 hours 6 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 |
|---|---|---|
| 9 January 2026 | 5 hours 6 minutes | Carrier |
| 5 January 2026 | 3 hours 42 minutes | Carrier |
| 31 October 2025 | 3 hours 36 minutes | Late-arriving aircraft |
| 6 June 2026 | 3 hours 22 minutes | Carrier |
| 8 December 2025 | 3 hours 13 minutes | Carrier |
Delay causes
Why DL 393 runs late
Carrier accounts for 51% of the 2,917 delay minutes carriers reported here, and the remaining four split what is left.
- 51%Carrier
- 34%Late-arriving aircraft
- 12%National Airspace System
- 2%Extreme weather
34% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 2,917 reported delay minutes here, that single category outweighs weather by 16 to one. The split is drawn from 2,917 delay minutes reported on DL 393.
Cancellations sit at 1.78% against a national 1.89%, which is ordinary. Diversions add another 0.00%.
Connections and routes
What a delay on this flight costs
Badly late arrivals are rare here: only 3.6% land an hour or more behind schedule, against 8.3% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.
At 1,900 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 CHA (1), but none flew often enough under DL 393 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to CVG to LAX only.
One caution: this is a thin sample. 337 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 393
For a booking, read DL 393 as 84.9% on time with 1.78% cancelled over 337 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- Cincinnati/Northern Kentucky International (CVG) delay statistics
- Los Angeles International (LAX) 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
- Why the first flight of the morning is statistically safest
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.