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

Icelandair and Alaska Airlines fly nonstop between Seattle (SEA) and Reykjavik (KEF), roughly 14 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 SEA to KEF departure, so you know which flights have space before you book.

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

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14
Nonstop flights a week
3,611 mi
Nonstop distance
Free
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Seattle to Reykjavik flight schedule

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

Schedule data dated .

Scheduled nonstop departures from Seattle (SEA) to Reykjavik (KEF)
Date Flight Airline Departs SEA Arrives KEF Duration Aircraft
FI 680Icelandair15:4006:157h 35m7M8
FI 682Icelandair19:0009:257h 25m7M8
FI 684Icelandair23:2514:007h 35m7M8
FI 680Icelandair15:4006:157h 35m7M8
FI 682Icelandair19:0009:257h 25m7M8
FI 684Icelandair23:2514:007h 35m7M8
FI 680Icelandair15:4006:157h 35m7M8
FI 682Icelandair19:0009:257h 25m7M8
FI 684Icelandair23:2514:007h 35m7M8
FI 680Icelandair15:4006:157h 35m7M8
FI 682Icelandair19:0009:257h 25m7M8
FI 684Icelandair23:2514:007h 35m7M8
FI 680Icelandair15:4006:157h 35m7M8
FI 682Icelandair19:0009:257h 25m7M8
FI 684Icelandair23:2514:007h 35m7M8
FI 680Icelandair15:4006:157h 35m7M8
FI 682Icelandair19:0009:257h 25m7M8
FI 682Icelandair19:0009:257h 25m32Q

Showing all 18 scheduled SEA to KEF 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 SEA to KEF date on the interactive map

Confirmed upgrade & award space on SEA to KEF departures

2LNR tracks confirmed upgrade and award space on Alaska Airlines, segment by segment and date by date. Open the calendar for Seattle to Reykjavik 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 SEA to KEF 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 SEA to KEF on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Seattle to Reykjavik nonstop

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

See SEA to KEF on the interactive map →

Frequently asked questions about SEA to KEF

How far is Reykjavik from Seattle?
SEA to KEF 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 SEA to KEF?
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 SEA to KEF?
About 14 nonstop flights a week run between Seattle and Reykjavik 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 SEA to KEF depart?
Scheduled SEA to KEF nonstops in the next 7 days with service leave between 15:40 and 23:25, local time at Seattle. 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 SEA to KEF?
Open the SEA to KEF 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 SEA to KEF 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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