Carrier route record
UAKOA→LAX
United Airlines · Kailua-Kona to Los Angeles
- Flights
- 489
- Period
- September 2025 to August 2026
- Share of route
- 31%
- Carriers
- 5
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with United Airlines.
United on KOA to LAX 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 14 points better than the national rate of 77.3%. When something does go wrong the average delay runs a little over an hour. That rests on 489 flights. The strongest carrier on the route with a full sample, Delta Air Lines, flew 365 at 90.4% on time.
Set against the rest of the country, United's KOA to LAX record is 14 points better than the US average of 77.3%. That gap is worth roughly 142 fewer late arrivals for every thousand flights.
Key figures
On time
91.5%
Arrivals under 15 minutes late, of 484 completed flights
Avg delay
77 min
Across delayed arrivals only, not all flights
Cancelled
1.02%
National rate is 1.89%
Whole route
86.5%
Every carrier on KOA to LAX, 1,601 flights
These figures cover 489 flights between September 2025 and August 2026. The median arrival is 14 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.
Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Carrier by carrier
United against every carrier on KOA to LAX
United flew 489 of the 1,601 flights on KOA to LAX, about 31% of it. Its 91.5% on time is 5 points better than the route as a whole, which runs 86.5%. Ranked by on-time rate it is first of five carriers on the route, where the range runs from United at 91.5% to Alaska at 79.5%. Two of those carriers flew fewer than 365 flights here, so treat their positions as rough.
The choice of carrier is not cosmetic here. Delta Air Lines arrives on time 90.4% of the time; Alaska Airlines manages 79.5%. Sample sizes sit next to every figure, because a two-point gap across 374 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| United Airlines (this page) | 489 | 91.5% | 77 min | 1.02% | A |
| Delta Air Lines | 365 | 90.4% | 50 min | 3.01% | A− |
| American Airlinesthin sample | 350 | 83.2% | 116 min | 1.14% | B |
| Southwest Airlinesthin sample | 23 | 82.6% | 48 min | 0.00% | B+ |
| Alaska Airlines | 374 | 79.5% | 48 min | 0.80% | B+ |
Delta Air Lines cancels 3.0% of what it schedules here, the highest in the table. A cancelled flight never appears in an on-time rate, so read that column alongside the punctuality one rather than after it.
Flight by flight
United flight numbers on KOA to LAX
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Departure window
When United runs best on this route
Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 489 flights.
- 5am–8am—
- 8am–11am—
- 11am–2pm239 flights91.1%
- 2pm–5pm133 flights89.5%
- 5pm–8pm—
- 8pm–5am117 flights94.8%
Scale runs 80% to 100%. Rows with fewer than 30 flights show a dash.
The 8pm–5am window is the strongest at 94.8% on time. The full set of windows spans 5 points.
Across the year
United on KOA to LAX through the year
November is the best month on the calendar at 100.0% on time. Shoulder season thins the schedule and takes the summer weather with it, and the operation gets its margin back. July was the busiest month here, with 66 flights.
Across the week, Tuesday is the strongest day at 98.5% on time and Sunday the weakest at 86.4%, a spread of 12 points.
Arrival by arrival
How late United on KOA to LAX runs when it is late
United on KOA to LAX often beats the schedule: 239 of 484 completed flights, 49%, arrived 15 minutes or more early. The 41 late arrivals split 18 under half an hour, 14 between 30 and 60 minutes, and 9 an hour or more.
- 15+ min early239 flights49.4%
- Within 15 min204 flights42.1%
- 15–29 min late18 flights3.7%
- 30–59 min late14 flights2.9%
- 1–2 hours late5 flights1.0%
- 2+ hours late4 flights0.8%
Scale runs 0% to 100%.
Share of 484 completed flights by arrival against schedule.
A late pushback is often recovered here: of 33 departures that left 15 minutes late or more, 12 still arrived on time. 20 flights left on time and still arrived late.
The worst days
Worst days for United on KOA to LAX
The latest arrival of the period was on 8 July 2026, 20 hours 13 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). On four of the five worst days the largest share was filed as a late-arriving aircraft.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 8 July 2026 | 20 hours 13 minutes | Carrier |
| 24 December 2025 | 3 hours 40 minutes | Late-arriving aircraft |
| 5 January 2026 | 3 hours 20 minutes | Late-arriving aircraft |
| 30 October 2025 | 2 hours 45 minutes | Late-arriving aircraft |
| 19 April 2026 | 1 hour 47 minutes | Late-arriving aircraft |
Delay causes
Why United runs late on this route
Carrier accounts for 46% of the 3,172 delay minutes carriers reported here, and the remaining four split what is left.
- 46%Carrier
- 35%Late-arriving aircraft
- 20%National Airspace System
35% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 3,172 reported delay minutes here, that single category outweighs weather by 35 to one. The split is drawn from 3,172 reported delay minutes.
The largest share of delay minutes, 46%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,448 of the 3,172 delay minutes reported here.
Cancellations sit at 1.02% against a national 1.89%, which is ordinary. Diversions add another 0.00%.
Connections and stage length
What a delay here costs
Badly late arrivals are rare here: only 1.9% 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.
The return leg runs 89.2% on time across 489 flights, within 2 points of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.
One caution: this is a thin sample. 489 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 United on KOA to LAX
Put together: treat all of this as provisional. 489 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 91.5% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 484 completed flights over 12 months sit behind that.
Related
Where to go next
- KOA to LAX, every carrier
- United on LAX to KOA, the return leg
- Delta Air Lines on KOA to LAX90.4%
- American Airlines on KOA to LAX83.2%
- Alaska Airlines on KOA to LAX79.5%
- United Airlines network-wide record
- Los Angeles International (LAX) delay statistics
- Same route, different airline: where the carrier you pick matters most
- Why the first flight of the morning is statistically safest
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.