Kona (KOA) to Seattle (SEA) flights: who flies it

Kona to Seattle flight schedule

Scheduled nonstop departures for KOA to SEA starting October 23, 2026, last checked against our schedule feed on October 18, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Scheduled nonstop departures from Kona (KOA) to Seattle (SEA)
Date	Flight	Airline	Departs KOA	Arrives SEA	Duration	Aircraft
Fri, Oct 23	AS 735	Alaska Airlines, Inc.	11:59	20:59	6h	Boeing 737 MAX 8
Fri, Oct 23	DL 485	Delta Air Lines	21:06	06:07	6h 1m	Airbus A321neo family
Fri, Oct 23	AS 259	Alaska Airlines, Inc.	22:21	07:20	5h 59m	Boeing 737-900
Sat, Oct 24	AS 735	Alaska Airlines, Inc.	11:59	20:59	6h	Boeing 737 MAX 9
Sat, Oct 24	DL 485	Delta Air Lines	21:06	06:07	6h 1m	Airbus A321neo family
Sat, Oct 24	AS 259	Alaska Airlines, Inc.	22:21	07:20	5h 59m	Boeing 737-900
Sun, Oct 25	AS 735	Alaska Airlines, Inc.	11:59	20:59	6h	Boeing 737 MAX 8
Sun, Oct 25	DL 485	Delta Air Lines	21:06	06:07	6h 1m	Airbus A321neo family
Sun, Oct 25	AS 259	Alaska Airlines, Inc.	22:21	07:20	5h 59m	Boeing 737 MAX 9
Mon, Oct 26	AS 735	Alaska Airlines, Inc.	11:59	20:59	6h	Boeing 737-800
Mon, Oct 26	DL 485	Delta Air Lines	21:06	06:07	6h 1m	Airbus A321neo family
Mon, Oct 26	AS 259	Alaska Airlines, Inc.	22:21	07:20	5h 59m	Boeing 737 MAX 9
Tue, Oct 27	AS 735	Alaska Airlines, Inc.	11:59	20:59	6h	Boeing 737 MAX 9
Tue, Oct 27	DL 485	Delta Air Lines	21:06	06:07	6h 1m	Airbus A321neo family
Tue, Oct 27	AS 259	Alaska Airlines, Inc.	22:21	07:20	5h 59m	Boeing 737 MAX 9
Wed, Oct 28	AS 735	Alaska Airlines, Inc.	11:59	20:59	6h	Boeing 737 MAX 9
Wed, Oct 28	DL 485	Delta Air Lines	21:06	06:07	6h 1m	Airbus A321neo family
Wed, Oct 28	AS 259	Alaska Airlines, Inc.	22:21	07:20	5h 59m	Boeing 737 MAX 9
Thu, Oct 29	AS 735	Alaska Airlines, Inc.	11:59	20:59	6h	Boeing 737-800
Thu, Oct 29	DL 485	Delta Air Lines	21:06	06:07	6h 1m	Airbus A321neo family
Thu, Oct 29	AS 259	Alaska Airlines, Inc.	22:21	07:20	5h 59m	Boeing 737 MAX 9

Showing all 21 scheduled KOA to SEA departures across 7 days with service, starting October 23, 2026. Later dates are on the interactive map.

Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline hasn't filed that value in the schedule data we hold. Aircraft are the equipment the airline filed, named where the code pins down one type and shown as the family or the bare code where it doesn't. Swaps can happen up to departure.

See every KOA to SEA date on the interactive map

Aircraft on the Kona to Seattle nonstop

In the schedule table on this page, Alaska Airlines flies the Boeing 737 MAX 9, the Boeing 737 MAX 8, the Boeing 737-900, and the Boeing 737-800, and Delta Air Lines flies the Airbus A321neo family. Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure.

Confirmed upgrade & award space on KOA to SEA departures

2LNR tracks confirmed upgrade and award space on Alaska Airlines and Delta Air Lines, segment by segment and date by date. Open the calendar for Kona to Seattle to see which departures have space, the next 14 days free on every product and the full horizon on Pro.

In the 7 days to October 19, 2026, 2LNR checked award space on Kona to Seattle departures from October 19 to November 1. Alaska Airlines had space open on 4 of 14 dates checked and Delta Air Lines on 13 of 14.

See real availability

Confirmed upgrade or award seats by date on the KOA to SEA departures 2LNR tracks, checked against live inventory so you know what's open before you book.

Set an alert

Premium inventory turns over fast. Watch this route on Pro and 2LNR notifies you when space appears on a date you're tracking.

Plan on the map

See KOA to SEA on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Kona to Seattle nonstop

Carriers operating KOA to SEA nonstop in the current schedule. Where 2LNR tracks the carrier, its departures show confirmed upgrade or award space by date.

See KOA to SEA on the interactive map →

Frequently asked questions about KOA to SEA

How long is the flight from Kona (KOA) to Seattle (SEA)?

Scheduled flight times from Kona (KOA) to Seattle (SEA) run from 5h 59m to 6h 1m across the departures in the schedule table on this page. The nonstop covers about 2,688 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book.

Which airlines fly nonstop from KOA to SEA?

Alaska Airlines and Delta Air Lines fly KOA to SEA nonstop. 2LNR tracks confirmed upgrade and award space on Alaska Airlines and Delta Air Lines.

How many flights a week are there from KOA to SEA?

About 26 nonstop flights a week run between Kona (KOA) and Seattle (SEA) in the current schedule, operated by Alaska Airlines and Delta Air Lines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next.

What time do flights from KOA to SEA depart?

Scheduled KOA to SEA nonstops in the next 7 days with service leave between 11:59 and 22:21, local time at Kona. The schedule table on this page lists every departure by date, with its arrival time and aircraft.

Which flights operate KOA to SEA nonstop?

In the schedule table on this page, KOA to SEA nonstops fly as AS 259 and AS 735 on Alaska Airlines, and DL 485 on Delta Air Lines. The table lists each departure by date with its times and aircraft.

How do I check upgrade or award availability on KOA to SEA?

Open the KOA to SEA route on the interactive map or the matrix to see confirmed upgrade and award space by date on Alaska Airlines and Delta Air Lines, the next 14 days free and the full horizon on Pro. On Pro you can also set an alert on the route and 2LNR notifies you when space opens.