Carrier route record

ASSLC→HNL

Alaska Airlines · Salt Lake City to Honolulu

Flights: 244
Period: September 2025 to August 2026
Share of route: 28%
Carriers: 3

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

Alaska on SLC to HNL draws a D. Roughly one flight in three arrives at least 15 minutes late, and the typical late arrival is about an hour behind schedule. Build slack into anything you connect to. That rests on 244 flights, with a median arrival 8 minutes late.

The national on-time rate over the same period is 77.3%, so Alaska on SLC to HNL runs 14 points behind the country as a whole. Across a thousand flights that is about 140 extra late arrivals.

On time

63.3%

Arrivals under 15 minutes late, of 240 completed flights

Avg delay

58 min

Across delayed arrivals only, not all flights

Cancelled

1.23%

National rate is 1.89%

Whole route

75.6%

Every carrier on SLC to HNL, 858 flights

These figures cover 244 flights between September 2025 and August 2026. On-time means an arrival less than 15 minutes after the scheduled gate time, the same threshold the Department of Transportation uses in its own reports. Cancelled and diverted flights are excluded from the on-time rate and counted separately, which is why the cancellation column matters on its own.

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Carrier by carrier

Alaska against every carrier on SLC to HNL

Alaska flew 244 of the 858 flights on SLC to HNL, about 28% of it. Its 63.3% on time is 12 points worse than the route as a whole, which runs 75.6%. Ranked by on-time rate it is last of three carriers on the route, where the range runs from Delta at 80.9% to Alaska at 63.3%. 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 SLC to HNL
Airline	Flights	On time	Avg delay	Cancelled	Grade
Delta Air Lines	492	80.9%	74 min	3.05%	B−
Hawaiian Airlinesthin sample	122	78.7%	176 min	0.00%	B+
Alaska Airlines (this page)thin sample	244	63.3%	58 min	1.23%	D

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Departure window

When Alaska runs best on this route

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 12 points, against half a point between the best and worst carrier.

5am–8am161 flights67.5%
8am–11am82 flights55.7%
11am–2pm—
2pm–5pm—
5pm–8pm—
8pm–5am1 flights—

Scale runs 45% to 75%. Rows with fewer than 30 flights show a dash.

Book the early departure. Flights leaving between 5am–8am arrive on time 67.5% of the time, against 55.7% for the morning window. That is 12 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 5am–8am window is the busiest, with 161 flights scheduled in it.

Across the year

Alaska on SLC to HNL through the year

Jan–Mar 202691 flights51.1%
Apr–Jun 202691 flights70.0%
Jul–Sep 202662 flights71.0%

Scale runs 45% to 75%.

Monthly volumes are too low here to break the year into twelve reliable readings. What the twelve-month total says is 63.3% on time across 244 flights.

Alaska on SLC to HNL did not run the same all year. Its best quarter was Jul–Sep 2026 at 71.0% on time and its weakest Jan–Mar 2026 at 51.1%, a swing of 20 points on roughly 81 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.

Across the week, Wednesday is the strongest day at 76.5% on time and Tuesday the weakest at 52.9%, a spread of 24 points.

Arrival by arrival

How late Alaska on SLC to HNL runs when it is late

The 88 late arrivals split 36 under half an hour, 34 between 30 and 60 minutes, and 18 an hour or more.

15+ min early19 flights7.9%
Within 15 min133 flights55.4%
15–29 min late36 flights15.0%
30–59 min late34 flights14.2%
1–2 hours late8 flights3.3%
2+ hours late10 flights4.2%

Scale runs 0% to 100%.

Share of 240 completed flights by arrival against schedule.

16 of 69 late departures made up the time and arrived on time, 23% of them. In the other direction, 35 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at HNL.

The worst days

Worst days for Alaska on SLC to HNL

The latest arrival of the period was on 2 January 2026, 12 hours 40 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). Three of the five worst days fell in January 2026.

The latest arrivals of Alaska on SLC to HNL in the period
Date	Arrived late by	Largest filed cause
2 January 2026	12 hours 40 minutes	Carrier
30 January 2026	5 hours 1 minute	Carrier
12 June 2026	3 hours 8 minutes	Carrier
16 January 2026	2 hours 41 minutes	Late-arriving aircraft
19 April 2026	2 hours 34 minutes	Late-arriving aircraft

Delay causes

Why Alaska runs late on this route

Carrier accounts for 62% of the 5,082 delay minutes carriers reported here, and the remaining four split what is left.

Carrier
62%
Late-arriving aircraft
24%
National Airspace System
13%
Extreme weather
1%
Security
1%

The largest share of delay minutes, 62%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 3,126 of the 5,082 delay minutes reported here. The split is drawn from 5,082 reported delay minutes.

Cancellations sit at 1.23% against a national 1.89%, which is ordinary. Diversions add another 0.41%.

Connections and stage length

What a delay here costs

7.5% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about an hour, which a normal layover absorbs.

At 2,994 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 is a different operation and performs like one: it runs 79.2% on time across 242 flights, 16 points above this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 16 points of difference.

One caution: this is a thin sample. 244 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 SLC to HNL

Put together: treat all of this as provisional. 244 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 63.3% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 240 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