Reykjavik to Seattle (KEF-SEA): nonstop upgrade & award space

Icelandair and Alaska Airlines fly nonstop between Reykjavik (KEF) and Seattle (SEA), roughly 21 times a week. Icelandair carries most of this long-haul schedule, so one carrier's release pattern decides when premium space appears, and it is rarely all at once. 2LNR tracks confirmed upgrade and award space on Alaska Airlines, on every KEF to SEA departure, so you know which flights have space before you book.

Schedule last confirmed September 6, 2026. Departure times come from 2LNR's schedule data; confirm with the airline before you book.

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Nonstop flights a week

3,611 mi

Nonstop distance

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Reykjavik to Seattle flight schedule

Scheduled nonstop departures for KEF to SEA, last checked against our schedule feed on September 6, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Scheduled nonstop departures from Reykjavik (KEF) to Seattle (SEA)
Date	Flight	Airline	Departs KEF	Arrives SEA	Duration	Aircraft
Wed, Sep 9	FI 685	Icelandair	10:40	11:45	8h 5m	7M8
Wed, Sep 9	AS 355	Alaska Airlines, Inc.	12:45	13:40	7h 55m	7M8
Wed, Sep 9	FI 681	Icelandair	16:50	17:55	8h 5m	7M8
Wed, Sep 9	FI 683	Icelandair	19:45	20:40	7h 55m	7M8
Thu, Sep 10	FI 685	Icelandair	10:40	11:45	8h 5m	7M8
Thu, Sep 10	AS 355	Alaska Airlines, Inc.	12:45	13:40	7h 55m	7M8
Thu, Sep 10	FI 681	Icelandair	16:50	17:55	8h 5m	7M8
Thu, Sep 10	FI 683	Icelandair	19:45	20:40	7h 55m	7M8
Fri, Sep 11	FI 685	Icelandair	10:40	11:45	8h 5m	7M8
Fri, Sep 11	AS 355	Alaska Airlines, Inc.	12:45	13:40	7h 55m	7M8
Fri, Sep 11	FI 681	Icelandair	16:50	17:55	8h 5m	7M8
Fri, Sep 11	FI 683	Icelandair	19:45	20:40	7h 55m	7M8
Sat, Sep 12	FI 685	Icelandair	10:40	11:45	8h 5m	7M8
Sat, Sep 12	AS 355	Alaska Airlines, Inc.	12:45	13:40	7h 55m	7M8
Sat, Sep 12	FI 681	Icelandair	16:50	17:55	8h 5m	7M8
Sat, Sep 12	FI 683	Icelandair	19:45	20:40	7h 55m	7M8
Sun, Sep 13	FI 685	Icelandair	10:40	11:45	8h 5m	7M8
Sun, Sep 13	AS 355	Alaska Airlines, Inc.	12:45	13:40	7h 55m	7M8
Sun, Sep 13	FI 681	Icelandair	16:50	17:55	8h 5m	7M8
Mon, Sep 14	AS 355	Alaska Airlines, Inc.	12:45	13:40	7h 55m	7M8
Mon, Sep 14	FI 681	Icelandair	16:50	17:55	8h 5m	32Q
Mon, Sep 14	FI 683	Icelandair	19:45	20:40	7h 55m	—
Tue, Sep 15	AS 355	Alaska Airlines, Inc.	12:45	13:40	7h 55m	7M8
Tue, Sep 15	FI 681	Icelandair	16:50	17:55	8h 5m	32Q
Tue, Sep 15	FI 683	Icelandair	19:45	20:40	7h 55m	32Q

Showing all 25 scheduled KEF to SEA departures across the next 7 days with service. 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 has not filed that value in the schedule data we hold. Aircraft are IATA equipment codes as filed, and can change up to departure.

See every KEF to SEA date on the interactive map

Confirmed upgrade & award space on KEF to SEA departures

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

See real availability

Confirmed upgrade and award seats on each KEF to SEA departure, checked against live inventory so you know what is open before you book.

Set an alert

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

Plan on the map

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

Airlines flying Reykjavik to Seattle nonstop

Carriers operating KEF to SEA nonstop in the current schedule. 2LNR tracks confirmed upgrade and award space on each of them.

See KEF to SEA on the interactive map →

Frequently asked questions about KEF to SEA

How far is Seattle from Reykjavik?

KEF to SEA covers about 3,611 miles nonstop. Flight times vary by aircraft and season; the schedule table on this page lists each scheduled departure with its own times.

Which airlines fly nonstop from KEF to SEA?

Icelandair and Alaska Airlines fly the route nonstop. 2LNR tracks confirmed upgrade and award space on Alaska Airlines.

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

About 21 nonstop flights a week run between Reykjavik and Seattle in the current schedule, operated by Icelandair and Alaska Airlines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next.

What time do flights from KEF to SEA depart?

Scheduled KEF to SEA nonstops in the next 7 days with service leave between 10:40 and 19:45, local time at Reykjavik. The schedule table on this page lists every departure by date, with its arrival time and aircraft.

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

Open the KEF to SEA route on the interactive map or the matrix to see confirmed upgrade and award space by date on Alaska Airlines, 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.

Never miss KEF to SEA upgrade or award space

See what is open by date on this route, the next 14 days free on every product and the full horizon on Pro.

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