Route on-time record
HNL to SEA: most on-time flights and the best time to fly
Honolulu, Oahu (Daniel K. Inouye International Airport) to Seattle (Seattle–Tacoma International Airport). 2,946 nonstop flights in Jun 2025 to May 2026, 75% arrived within 15 minutes and 0.9% were cancelled. The most reliable flight number was Delta 440 at 10:40 PM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
HNL → SEA
Honolulu, Oahu to Seattle: 2,946 nonstop flights a year
On time (12 months)
75%
Cancelled
0.9%
avg delay 19 min
Best time to leave
After 9 PM
82% on time vs 65% 9 AM to noon
Most reliable airline
Delta
87% chance on time
Lowest nonstop fare seen in the next two months: $256 (Alaska 822 on 2026-10-20). Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Most reliable nonstop flights
Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.
#1 · Delta 440
10:40 PM → 7:35 AM5h 55m nonstop
Local times, typical schedule. Last flown 2026-05-31.
93%
chance on time
- On time (history)
- 94%
- Cancelled
- 1.6%
- Avg arrival delay
- 9 min
- Arrived on time 94% of the time (359 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (After 9 PM: 82% on time; 9 AM to noon: 65%).
Strong track record · 359 flights
Find Delta 440 fares Opens this date on Aviasales#2 · Delta 673
7:15 AM → 4:10 PM5h 55m nonstop
Local times, typical schedule. Last flown 2026-04-12.
92%
chance on time
- On time (history)
- 96%
- Cancelled
- 0.0%
- Avg arrival delay
- 23 min
- Arrived on time 96% of the time (26 flights, Jun 2025 to May 2026).
- Lands inside SEA's trouble window: 54% of its 68 ground stops and delay programs started between 4 PM and 10 PM.
- 77% of its delay minutes came from the plane arriving late from an earlier flight.
- Short track record (26 flights), so its score leans on the airline's record at this hour.
Limited track record · 26 flights
Find Delta 673 fares Opens this date on Aviasales#3 · Delta 359
12:35 PM → 9:34 PM5h 59m nonstop
Local times, typical schedule. Last flown 2026-05-31.
83%
chance on time
- On time (history)
- 84%
- Cancelled
- 1.4%
- Avg arrival delay
- 11 min
- Arrived on time 84% of the time (360 flights, Jun 2025 to May 2026).
- Lands inside SEA's trouble window: 54% of its 68 ground stops and delay programs started between 4 PM and 10 PM.
Strong track record · 360 flights
Find Delta 359 fares Opens this date on Aviasales#4 · Alaska 279
7:30 AM → 4:28 PM5h 58m nonstop
Local times, typical schedule. Last flown 2026-05-31.
81%
chance on time
- On time (history)
- 100%
- Cancelled
- 0.0%
- Avg arrival delay
- 2 min
- Arrived on time 100% of the time (11 flights, Jun 2025 to May 2026).
- Lands inside SEA's trouble window: 54% of its 68 ground stops and delay programs started between 4 PM and 10 PM.
- Short track record (11 flights), so its score leans on the airline's record at this hour.
Limited track record · 11 flights
Find Alaska 279 fares Opens this date on Aviasales#5 · Alaska 124
7:00 AM → 3:50 PM5h 50m nonstop
Local times, typical schedule. Last flown 2026-05-20.
78%
chance on time
- On time (history)
- 88%
- Cancelled
- 0.0%
- Avg arrival delay
- 10 min
- Arrived on time 88% of the time (8 flights, Jun 2025 to May 2026).
- Short track record (8 flights), so its score leans on the airline's record at this hour.
Limited track record · 8 flights
Find Alaska 124 fares Opens this date on Aviasales#6 · Alaska 222
11:15 AM → 8:12 PM5h 59m nonstop
Local times, typical schedule. Last flown 2026-05-12.
77%
chance on time
- On time (history)
- 79%
- Cancelled
- 0.0%
- Avg arrival delay
- 14 min
- Arrived on time 79% of the time (157 flights, Jun 2025 to May 2026).
- Never cancelled in 157 scheduled flights.
- Leaves in this route's least on-time window (9 AM to noon: 65% on time; After 9 PM: 82%).
- Lands inside SEA's trouble window: 54% of its 68 ground stops and delay programs started between 4 PM and 10 PM.
Moderate track record · 157 flights
Find Alaska 222 fares Opens this date on Aviasales#7 · Alaska 990
7:20 AM → 4:12 PM5h 52m nonstop
Local times, typical schedule. Last flown 2026-04-20.
76%
chance on time
- On time (history)
- 79%
- Cancelled
- 1.8%
- Avg arrival delay
- 25 min
- Arrived on time 79% of the time (108 flights, Jun 2025 to May 2026).
- Lands inside SEA's trouble window: 54% of its 68 ground stops and delay programs started between 4 PM and 10 PM.
Moderate track record · 108 flights
Find Alaska 990 fares Opens this date on Aviasales#8 · Alaska 900
11:20 PM → 8:09 AM5h 44m nonstop
Local times, typical schedule. Last flown 2026-05-31.
73%
chance on time
- On time (history)
- 75%
- Cancelled
- 0.8%
- Avg arrival delay
- 15 min
- Arrived on time 75% of the time (131 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (After 9 PM: 82% on time; 9 AM to noon: 65%).
Moderate track record · 131 flights
Find Alaska 900 fares Opens this date on Aviasales#9 · Alaska 142
9:15 PM → 6:00 AM5h 45m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Alaska 842; its record covers all of them.
73%
chance on time
- On time (history)
- 75%
- Cancelled
- 0.6%
- Avg arrival delay
- 23 min
- Arrived on time 75% of the time (159 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (After 9 PM: 82% on time; 9 AM to noon: 65%).
Moderate track record · 159 flights
Find Alaska 142 fares Opens this date on Aviasales#10 · Alaska 267
4:05 PM → 12:59 AM5h 57m nonstop
Local times, typical schedule. Last flown 2026-05-31.
71%
chance on time
- On time (history)
- 72%
- Cancelled
- 0.0%
- Avg arrival delay
- 17 min
- Arrived on time 72% of the time (216 flights, Jun 2025 to May 2026).
- Never cancelled in 216 scheduled flights.
- 51% of its delay minutes came from the plane arriving late from an earlier flight.
Strong track record · 216 flights
Find Alaska 267 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Delta Air Lines87%
789 flights · 89% on time as flown · 1.3% cancel
- Alaska Airlines71%
1,309 flights · 72% on time as flown · 0.8% cancel
- Hawaiian Airlines67%
848 flights · 66% on time as flown · 0.5% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM81%
415 flights · avg delay 20 min
- 9 AM to noon65%
258 flights · avg delay 19 min
- Noon to 3 PM68%
1,026 flights · avg delay 21 min
- 3 to 6 PM76%
186 flights · avg delay 16 min
- After 9 PM82%
1,052 flights · avg delay 17 min
On time by month
All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.
What delays this route
- Airline (crew, maintenance, boarding)59%
- Late-arriving aircraft30%
- Air traffic control and airport volume9%
- Severe weather1%
Share of delay minutes by the cause airlines report to the US DOT.
Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure
HNL to SEA questions
- What time of day is best to fly HNL to SEA?
- After 9 PM: 82% of flights arrived on time, against 65% for departures 9 AM to noon.
- Which airline is most on time from HNL to SEA?
- Delta, with a season-adjusted 87% chance of operating and arriving on time over 789 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
- What is the worst month for delays on HNL to SEA?
- April (75% on time); the best was November (82%), averaged over Jun 2023 to May 2026.
- Is this a prediction for my flight?
- No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.
More routes from HNL
- SEA to HNL (return)
- HNL to OGG 85%
- HNL to LIH 85%
- HNL to KOA 86%
- HNL to ITO 86%
- HNL to LAX 82%
- HNL to SFO 82%
- HNL to LAS 81%
- HNL to SAN 78%
- HNL to PHX 85%
- HNL to PDX 76%
- HNL to SLC 83%
- HNL to SJC 84%
Live status: FAA delays and ground stops