SEA → HNLSeattle to Honolulu

live

Direct flights from Seattle (SEA) to Honolulu (HNL): 14 nonstop departures observed each week across 2 airlines. 100% of the last 7 tracked flights arrived within 15 minutes of schedule. The median arrival is 11 minutes early. No cancellations were recorded across the 7 tracked flights. The nonstop covers 4,308 km, an estimated 6 hours 1 minutes in the air. Measured by Pro Flight Search from live flight boards at Seattle and Honolulu. Updated 28 October 2026 at 23:22 UTC.

Today, SEA → HNL

Wed 28 Oct · local times
AS821Alaska220 min late

The SEA board at 16:22 shows departure at 16:40 instead of 13:00, gate N16.

Later cancelled
2.6%of 2,562 past Alaska flights whose board showed 70 min or more late
Still to leave today
AS451 18:59Alaska · then AS268 20:45
Track AS821 →
  1. 07:45 AS121Alaska Departed HNL est. 10:39In the air · sched 11:03
  2. 08:25 DL351Delta Air Lines Departed HNL est. 11:45 +5In the air · sched 11:40
  3. 09:05 AS626Alaska Departed HNL est. 12:17In the air · sched 12:30
  4. 10:05 AS899Alaska Departed HNL est. 13:27In the air · sched 13:30
  5. 13:00 AS821Alaska Est. 16:40 +220Gate N16 ·
  6. 16:36 DL419Delta Air Lines Est. 16:31Departure not confirmed by the board ·
  7. 18:59 AS451Alaska On scheduleGate N19 ·
  8. 20:45 AS268Alaska Est. 20:40Gate N3 ·

Checked SEA board 16:22 · HNL board 10:18

SEA Seattle busy · +15
HNL Honolulu smooth · +2
4,308 km · ~6h 01m est.
dep bank 07:00–20:4514x weekly
Runs reliable · 2 airlines · 14x weekly · nonstop
100% on time

of the last 7 tracked SEA → HNL flights arrived within 15 minutes

Median arrival delay is −11 min. 0 of 7 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival−11 minacross the last 7 arrivals
Flight time~6h 01mestimated from route distance
Weekly departures14x2 direct airlines on the leg

The week

scheduled departures · origin local time
06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Alaska AirlinesDelta Air Lines

Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.

Who flies it

observed on the boards · 7 days
Alaska AirlinesAS100% on time

Flights AS821 07:00 daily · AS121 07:45 Mo Tu We Su · AS853 09:00 daily · AS626 10:05 daily

Delta Air LinesDL

Flights DL351 08:25 daily · DL419 16:36 daily

History

operated legs · board outcomes
10-28AS121arrived−24
10-28AS626arrived−13
10-28AS899arrived−3
10-28DL351arrived+5
10-27AS121arrived−33
10-27AS268arrived+13
10-27AS451arrived−11

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
SEASeattle +15 min busy 🌤 scattered clouds · S 10 kt Full SEA delay board →
HNLHonolulu +2 min smooth 🌤 overcast · S 4 kt Full HNL delay board →

Weather lens

Current conditions put the pressure at SEA and HNL: 36% odds of a 15+ minute delay and around +5 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →

How the Seattle to Honolulu route actually runs

Pro Flight Search records official board updates for nonstop SEA to HNL flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.

Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search — Seattle (SEA) to Honolulu (HNL) route reliability, measured from operated flights on official airport boards.

Canonical URL
https://proflightsearch.com/search-flights/SEA-HNL
How we measure this →

SEA to HNL questions

Is SEA–HNL running on time right now?

Smooth skies ahead. The departure side at SEA is the weaker end, route health score 90/100. The airports section above carries the live status and delay window at both ends.

Morning or evening flight on SEA–HNL?

Operators schedule morning departures around 07:00 and evening departures around 18:59 from SEA. Earlier flights typically land before destination-airport delays accumulate later in the day; check the HNL delay card to confirm conditions when you'd arrive.

How long is the flight from SEA to HNL?

Great-circle distance is 4,308 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 334–399 min gate-to-gate on this route.

How often does SEA–HNL fly?

2 carriers operate this route, around 60 flights a week between them. Compare carrier days and times in the airline list above.