Carrier route record

ASKOA→LAX

Alaska Airlines · Kailua-Kona to Los Angeles

Flights: 374
Period: September 2025 to August 2026
Share of route: 23%
Carriers: 5

Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with Alaska Airlines.

Alaska on KOA to LAX 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 roughly 50 minutes on average. That rests on 374 flights. The strongest carrier on the route with a full sample, United Airlines, flew 489 at 91.5% on time.

The US average over the same twelve months is 77.3%, so there is little to separate Alaska on KOA to LAX from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.

On time

79.5%

Arrivals under 15 minutes late, of 371 completed flights

Avg delay

48 min

Across delayed arrivals only, not all flights

Cancelled

0.80%

National rate is 1.89%

Whole route

86.5%

Every carrier on KOA to LAX, 1,601 flights

These figures cover 374 flights between September 2025 and August 2026. The median arrival is 6 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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Carrier by carrier

Alaska against every carrier on KOA to LAX

Alaska flew 374 of the 1,601 flights on KOA to LAX, about 23% of it. Its 79.5% on time is 7 points worse than the route as a whole, which runs 86.5%. Ranked by on-time rate it is last 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 two carriers here are closely matched: about a point separate the best from the worst. At that spread, schedule and price are better tie-breakers than reliability. Sample sizes are shown so you can see which rows are worth weighing.

On-time performance by carrier on KOA to LAX
Airline	Flights	On time	Avg delay	Cancelled	Grade
United Airlines	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 (this page)	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

Alaska flight numbers on KOA to LAX

AS 56114:3678.2% · 292 flights

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Departure window

When Alaska 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 374 flights.

5am–8am—
8am–11am—
11am–2pm99 flights80.4%
2pm–5pm241 flights77.1%
5pm–8pm24 flights—
8pm–5am10 flights—

Scale runs 70% to 85%. Rows with fewer than 30 flights show a dash.

The 11am–2pm window is the strongest at 80.4% on time. The full set of windows spans 3 points.

Across the year

Alaska on KOA to LAX through the year

Darker means more delays. Figures are on-time percentages.September best, January worst

January is the weak month at 67.7% on time, against 96.7% in September. Winter delays cluster: a single storm system can account for most of a month's shortfall, so an average December hides both very good weeks and genuinely unflyable days. April was the busiest month here, with 36 flights.

Across the week, Saturday is the strongest day at 89.1% on time and Thursday the weakest at 66.0%, a spread of 23 points.

Arrival by arrival

How late Alaska on KOA to LAX runs when it is late

Alaska on KOA to LAX often beats the schedule: 125 of 371 completed flights, 34%, arrived 15 minutes or more early. The 76 late arrivals split 33 under half an hour, 27 between 30 and 60 minutes, and 16 an hour or more.

15+ min early125 flights33.7%
Within 15 min170 flights45.8%
15–29 min late33 flights8.9%
30–59 min late27 flights7.3%
1–2 hours late10 flights2.7%
2+ hours late6 flights1.6%

Scale runs 0% to 100%.

Share of 371 completed flights by arrival against schedule.

A late pushback is often recovered here: of 104 departures that left 15 minutes late or more, 44 still arrived on time. 16 flights left on time and still arrived late.

The worst days

Worst days for Alaska on KOA to LAX

The latest arrival of the period was on 8 March 2026, 2 hours 38 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on four of the five worst days.

The latest arrivals of Alaska on KOA to LAX in the period
Date	Arrived late by	Largest filed cause
8 March 2026	2 hours 38 minutes	Late-arriving aircraft
30 April 2026	2 hours 38 minutes	Late-arriving aircraft
30 October 2025	2 hours 21 minutes	Late-arriving aircraft
16 August 2026	2 hours 20 minutes	Carrier
20 March 2026	2 hours 17 minutes	Late-arriving aircraft

Delay causes

Why Alaska runs late on this route

Late-arriving aircraft accounts for 53% of the 3,619 delay minutes carriers reported here, and the remaining four split what is left.

Late-arriving aircraft
53%
Carrier
32%
National Airspace System
13%
Extreme weather
1%
Security
1%

53% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 3,619 reported delay minutes here, that single category outweighs weather by 53 to one. The split is drawn from 3,619 reported delay minutes.

Cancellations are rare at 0.80%, below the national 1.89% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.

Connections and stage length

What a delay here costs

Badly late arrivals are rare here: only 4.3% 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 78.7% on time across 374 flights, within about a point 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. 374 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 Alaska on KOA to LAX

Put together: treat all of this as provisional. 374 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 79.5% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 371 completed flights over 12 months sit behind that.

Where to go next

Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated 22 October 2026; recomputed monthly. How this data is collected.

Key figures