Flight number record
DL 486
Delta Air Lines · Kailua-Kona to Los Angeles
- Route
- KOA → LAX
- Departs
- 21:30
- Flights
- 365
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 486, check with Delta Air Lines.
DL 486 earns an A−. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 13 points better than the national rate of 77.3%. When something does go wrong the average delay runs about 50 minutes. That rests on 365 flights, with a median arrival 10 minutes early.
Set against the rest of the country, DL 486's record is 13 points better than the US average of 77.3%. That gap is worth roughly 131 fewer late arrivals for every thousand flights.
Key figures
On time
90.4%
Arrivals under 15 minutes late, of 354 completed flights
Avg delay
50 min
Across delayed arrivals only, not all flights
Cancelled
3.01%
National rate is 1.89%
1 hour+ late
2.5%
National rate is 8.3%
These figures cover 365 flights between September 2025 and August 2026. The median arrival is 10 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 486 flies
DL 486 flies KOA to LAX without a single fixed slot. Its most common scheduled departure was 21:30, used on 76 of 365 flights, with 22:55 (47 flights) and 22:15 (37 flights) next.
- Departs 21:3076 flights20.8%
- Departs 22:5547 flights12.9%
- Departs 22:1537 flights10.1%
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 21:30 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.1%, and DL 486 runs 20 points better at 90.4%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
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Against the route
DL 486 next to KOA to LAX
Every carrier on KOA to LAX combined arrived on time 86.5% of the time across 1,601 flights, so DL 486 is 4 points ahead of it. Across its whole network Delta Air Lines managed 81.1%, which this flight beats by 9 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 486 | 365 | 90.4% | 50 min | 3.01% | A− |
| All Delta Air Lines on KOA–LAX | 365 | 90.4% | 50 min | 3.01% | A− |
| All carriers on KOA–LAX | 1,601 | 86.5% | 72 min | 1.44% | A |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 486 quarter by quarter
DL 486 did not run the same all year. Its best quarter was Jul–Sep 2025 at 96.7% on time and its weakest Oct–Dec 2025 at 86.7%, a swing of 10 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 flights96.7%
- Oct–Dec 202592 flights86.7%
- Jan–Mar 202690 flights91.7%
- Apr–Jun 202691 flights89.9%
- Jul–Sep 202662 flights91.8%
Scale runs 80% to 100%.
By weekday, DL 486 did best on Tuesday at 98.0% on time and worst on Friday at 82.4%. Each day rests on about 52 flights, so a gap of 16 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 486 runs when it is late
DL 486 often beats the schedule: 123 of 354 completed flights, 35%, arrived 15 minutes or more early. The 34 late arrivals split 9 under half an hour, 16 between 30 and 60 minutes, and 9 an hour or more.
- 15+ min early123 flights34.7%
- Within 15 min197 flights55.6%
- 15–29 min late9 flights2.5%
- 30–59 min late16 flights4.5%
- 1–2 hours late7 flights2.0%
- 2+ hours late2 flights0.6%
Scale runs 0% to 100%.
Share of 354 completed flights by arrival against schedule.
A late pushback is often recovered here: of 43 departures that left 15 minutes late or more, 16 still arrived on time. Only 7 left on time and still arrived late.
The worst days
Worst days for DL 486
The latest arrival of the period was on 7 March 2026, 2 hours 22 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 |
|---|---|---|
| 7 March 2026 | 2 hours 22 minutes | Carrier |
| 2 January 2026 | 2 hours 7 minutes | Carrier |
| 26 December 2025 | 1 hour 23 minutes | Carrier |
| 11 May 2026 | 1 hour 15 minutes | Carrier |
| 6 March 2026 | 1 hour 14 minutes | National Airspace System |
Delay causes
Why DL 486 runs late
Carrier accounts for 64% of the 1,693 delay minutes carriers reported here, and the remaining four split what is left.
- 64%Carrier
- 22%National Airspace System
- 14%Late-arriving aircraft
The largest share of delay minutes, 64%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,079 of the 1,693 delay minutes reported here. The split is drawn from 1,693 delay minutes reported on DL 486.
Cancellations run at 3.01%, against 1.89% nationally. That is roughly one flight in 30 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
Badly late arrivals are rare here: only 2.5% 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 2,504 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 486 in the data flew KOA to LAX. 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 486
For a booking, the cancellation rate is the figure to plan around on DL 486: 3.01% of its 365 scheduled flights did not operate. A late arrival costs about 50 minutes, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- KOA to LAX, every carrier and departure
- LAX to KOA, the return direction
- United Airlines 2372 on the same route90.6%
- Alaska Airlines 561 on the same route78.2%
- American Airlines 58 on the same route83.5%
- 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
- 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.