Carrier route record

ASSEA→OGG

Alaska Airlines · Seattle to Kahului

Flights: 1,260
Period: July 2025 to June 2026
Share of route: 70%
Carriers: 3

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

Alaska on SEA to OGG lands a B+, level with the national rate of 77.6%. Roughly one flight in four arrives 15 minutes late or worse, and those flights are late by roughly 45 minutes on average. That is a workable record, not a spotless one. That rests on 1,260 flights, with a median arrival 6 minutes early.

The US average over the same twelve months is 77.6%, so there is little to separate Alaska on SEA to OGG from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.

On time

76.9%

Arrivals under 15 minutes late, of 1,244 completed flights

Avg delay

47 min

Across delayed arrivals only, not all flights

Cancelled

0.63%

National rate is 1.81%

Whole route

79.0%

Every carrier on SEA to OGG, 1,809 flights

These figures cover 1,260 flights between July 2025 and June 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.

Carrier by carrier

Alaska against every carrier on SEA to OGG

Alaska flew 1,260 of the 1,809 flights on SEA to OGG, most of the route. Its 76.9% on time is 2 points worse than the route as a whole, which runs 79.0%. Ranked by on-time rate it is number two of three carriers on the route, where the range runs from Delta at 87.7% to Hawaiian at 76.4%. One of those carriers flew fewer than 365 flights here, so treat their positions as rough.

Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.

On-time performance by carrier on SEA to OGG
Airline	Flights	On time	Avg delay	Cancelled	Grade
Delta Air Lines	365	87.7%	41 min	1.10%	A
Alaska Airlines (this page)	1,260	76.9%	47 min	0.63%	B+
Hawaiian Airlinesthin sample	184	76.4%	63 min	0.00%	B+

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 1,260 flights.

5am–8am—
8am–11am545 flights79.1%
11am–2pm344 flights76.0%
2pm–5pm21 flights—
5pm–8pm350 flights73.3%
8pm–5am—

Scale runs 65% to 85%. Rows with fewer than 30 flights show a dash.

The early departures do better, though not dramatically: 79.1% on time for the 8am–11am window against 73.3% for 5pm–8pm. Worth taking if the schedule allows, not worth an extra connection. The 8am–11am window is the busiest, with 545 flights scheduled in it.

Across the year

Alaska on SEA to OGG through the year

Darker means more delays. Figures are on-time percentages.June best, December worst

December is the weak month at 69.9% on time, against 90.0% in June. 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. January was the busiest month here, with 124 flights.

Across the week, Wednesday is the strongest day at 83.8% on time and Friday the weakest at 71.2%. 13 points is a smaller lever than departure hour, but it is free.

Delay causes

Why Alaska runs late on this route

One category carries most of the weight here. Carrier accounts for 50% of the 13,000 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.

Carrier
50%
Late-arriving aircraft
24%
National Airspace System
21%
Extreme weather
5%

The largest share of delay minutes, 50%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 6,628 of the 13,000 delay minutes reported here. The split is drawn from 13,360 reported delay minutes.

Cancellations are rare at 0.63%, below the national 1.81% 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 4.9% land an hour or more behind schedule, against 8.1% 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 2,639 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 77.6% on time across 1,260 flights, within half a point of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.

The sample behind these figures is 1,260 flights, enough that the headline rate is stable to within roughly a point. The hour-block and month splits divide that further, so read the thinner bars with more caution than the headline.

What to do with this

Booking Alaska on SEA to OGG

Put together: the calendar is the biggest lever here, not the carrier or the hour. June runs 90.0% on time and December 69.9%, a swing of 20 points. If the dates move at all, move them out of December before you think about anything else. 1,244 completed flights over 12 months sit behind that.

Where to go next

Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.

Key figures