Carrier route record
ASHNL→SEA
Alaska Airlines · Honolulu to Seattle
- Flights
- 1,663
- Period
- September 2025 to August 2026
- Share of route
- 57%
- Carriers
- 3
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with Alaska Airlines.
Alaska on HNL to SEA sits in the middle of the pack with a C. About seven flights in ten arrive on time by the DOT's definition, 6 points worse than the national rate of 77.3%. The late ones land about an hour behind schedule. That rests on 1,663 flights. The strongest carrier on the route with a full sample, Delta Air Lines, flew 789 at 88.7% on time.
The national on-time rate over the same period is 77.3%, so Alaska on HNL to SEA runs 6 points behind the country as a whole. Across a thousand flights that is about 62 extra late arrivals.
Key figures
On time
71.1%
Arrivals under 15 minutes late, of 1,642 completed flights
Avg delay
62 min
Across delayed arrivals only, not all flights
Cancelled
1.26%
National rate is 1.89%
Whole route
74.9%
Every carrier on HNL to SEA, 2,931 flights
These figures cover 1,663 flights between September 2025 and August 2026. Beyond the headline rate, 8.2% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Carrier by carrier
Alaska against every carrier on HNL to SEA
Alaska flew 1,663 of the 2,931 flights on HNL to SEA, most of the route. Its 71.1% on time is 4 points worse than the route as a whole, which runs 74.9%. Ranked by on-time rate it is number two of three carriers on the route, where the range runs from Delta at 88.7% to Hawaiian at 65.2%.
The choice of carrier is not cosmetic here. Delta Air Lines arrives on time 88.7% of the time; Hawaiian Airlines manages 65.2%. Sample sizes sit next to every figure, because a two-point gap across 479 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Delta Air Lines | 789 | 88.7% | 76 min | 1.01% | A |
| Alaska Airlines (this page) | 1,663 | 71.1% | 62 min | 1.26% | C |
| Hawaiian Airlines | 479 | 65.2% | 97 min | 0.63% | C+ |
The spread between Delta and Hawaiian is 24 points, wide enough that it should decide the booking. On a hundred trips that is 24 more arrivals inside the on-time window.
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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 25 points, against 24 points between the best and worst carrier.
- 5am–8am179 flights84.8%
- 8am–11am193 flights69.6%
- 11am–2pm448 flights59.5%
- 2pm–5pm384 flights74.3%
- 5pm–8pm—
- 8pm–5am459 flights74.9%
Scale runs 50% to 90%. Rows with fewer than 30 flights show a dash.
The weak window here is the middle of the day, not the evening: 11am–2pm runs 59.5% on time against 84.8% for 5am–8am. That shape usually means a departure bank rather than an accumulating delay, so the recovery later in the afternoon is real rather than noise. The 8pm–5am window is the busiest, with 459 flights scheduled in it.
Across the year
Alaska on HNL to SEA through the year
July is the worst month at 63.8% on time, 15 points below February, the best at 78.3%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. May was the busiest month here, with 186 flights.
Across the week, Friday is the strongest day at 73.8% on time and Wednesday the weakest at 68.8%, a spread of 5 points.
Arrival by arrival
How late Alaska on HNL to SEA runs when it is late
The 475 late arrivals split 199 under half an hour, 141 between 30 and 60 minutes, and 135 an hour or more.
- 15+ min early375 flights22.8%
- Within 15 min792 flights48.2%
- 15–29 min late199 flights12.1%
- 30–59 min late141 flights8.6%
- 1–2 hours late71 flights4.3%
- 2+ hours late64 flights3.9%
Scale runs 0% to 100%.
Share of 1,642 completed flights by arrival against schedule.
A late pushback is often recovered here: of 531 departures that left 15 minutes late or more, 183 still arrived on time. In the other direction, 127 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 SEA.
The worst days
Worst days for Alaska on HNL to SEA
The latest arrival of the period was on 19 February 2026, 15 hours 45 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. On three of the five worst days the largest share was filed as carrier-caused (crew, maintenance, fuelling, baggage).
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 19 February 2026 | 15 hours 45 minutes | Late-arriving aircraft |
| 7 March 2026 | 7 hours 17 minutes | Carrier |
| 13 January 2026 | 6 hours 23 minutes | Late-arriving aircraft |
| 15 June 2026 | 6 hours 13 minutes | Carrier |
| 25 July 2026 | 5 hours 26 minutes | Carrier |
Delay causes
Why Alaska runs late on this route
Carrier accounts for 48% of the 29,000 delay minutes carriers reported here, and the remaining four split what is left.
- 48%Carrier
- 35%Late-arriving aircraft
- 15%National Airspace System
- 2%Extreme weather
- 1%Security
35% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 29,000 reported delay minutes here, that single category outweighs weather by 20 to one. The split is drawn from 29,412 reported delay minutes.
The largest share of delay minutes, 48%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 14,000 of the 29,000 delay minutes reported here.
Cancellations sit at 1.26% against a national 1.89%, which is ordinary. Diversions add another 0.00%.
Connections and stage length
What a delay here costs
8.2% 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 2,677 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 61.7% on time across 1,659 flights, 9 points below 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 9 points of difference.
The sample behind these figures is 1,663 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 HNL to SEA
Put together: the calendar is the biggest lever here, not the carrier or the hour. February runs 78.3% on time and July 63.8%, a swing of 15 points. If the dates move at all, move them out of July before you think about anything else. 1,642 completed flights over 12 months sit behind that.
Related
Where to go next
- HNL to SEA, every carrier
- Alaska on SEA to HNL, the return leg
- Delta Air Lines on HNL to SEA88.7%
- Hawaiian Airlines on HNL to SEA65.2%
- Alaska Airlines network-wide record
- Daniel K. Inouye International (HNL) delay statistics
- Seattle-Tacoma International (SEA) delay statistics
- Why the first flight of the morning is statistically safest
- Same route, different airline: where the carrier you pick matters most
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.