--- title: "Seattle (SEA) to Reykjavik (KEF) flights: who flies it" description: "Alaska Airlines and Icelandair fly nonstop from SEA to KEF, about 8 flights a week, covering 3,611 miles. Upgrade and award space by date on 2LNR, next 14 days free." canonical: "https://2lnr.com/routes/sea-kef" url: "https://2lnr.com/routes/sea-kef.md" date_modified: "2026-10-18T05:10:47Z" --- # Seattle to Reykjavik (SEA-KEF): nonstop upgrade & award space Icelandair and Alaska Airlines fly the SEA to KEF nonstop about 8 times a week. The timetable below shows the nonstop scheduled at 7h 25m to 7h 40m for the 3,611 miles. 2LNR checks confirmed upgrade and award space on Alaska Airlines flights on this route, so you can see which departures have space before you book. Schedule last confirmed October 18, 2026. Departure times come from 2LNR's schedule data; confirm with the airline before you book. Updated October 23, 2026. See SEA to KEF on the interactive map [Get started free](https://2lnr.com/login) 8 Flights a week, 4-week average 7h 25m to 7h 40m Scheduled flight time 3,611 mi Nonstop distance Free To get started ## Seattle to Reykjavik flight schedule Scheduled nonstop departures for SEA to KEF 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 Seattle (SEA) to Reykjavik (KEF) | Date | Flight | Airline | Departs SEA | Arrives KEF | Duration | Aircraft | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | Fri, Oct 23 | FI 680 | Icelandair | 15:40 | 06:15 | 7h 35m | [Airbus A321neo family](https://2lnr.com/seatmaps/fi/a321neo.md) | | Fri, Oct 23 | FI 682 | Icelandair | 19:00 | 09:25 | 7h 25m | Airbus A321neo family | | Sat, Oct 24 | FI 680 | Icelandair | 15:40 | 06:15 | 7h 35m | Airbus A321neo family | | Sat, Oct 24 | FI 682 | Icelandair | 19:10 | 09:35 | 7h 25m | Airbus A321neo family | | Sun, Oct 25 | FI 680 | Icelandair | 16:55 | 07:35 | 7h 40m | [Boeing 737 MAX 8](https://2lnr.com/seatmaps/fi/737-max-8.md) | | Sun, Oct 25 | FI 682 | Icelandair | 19:10 | 09:35 | 7h 25m | Airbus A321neo family | | Mon, Oct 26 | FI 680 | Icelandair | 15:35 | 06:15 | 7h 40m | Airbus A321neo family | | Tue, Oct 27 | FI 680 | Icelandair | 15:35 | 06:15 | 7h 40m | Boeing 737 MAX 8 | | Wed, Oct 28 | FI 680 | Icelandair | 15:35 | 06:15 | 7h 40m | Airbus A321neo family | | Thu, Oct 29 | FI 680 | Icelandair | 15:35 | 06:15 | 7h 40m | Boeing 737 MAX 8 | Showing all 10 scheduled SEA to KEF 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 SEA to KEF date on the interactive map ## Aircraft on the Seattle to Reykjavik nonstop Icelandair flies the departures in the schedule table on this page with the [Airbus A321neo family](https://2lnr.com/seatmaps/fi/a321neo.md) and the [Boeing 737 MAX 8](https://2lnr.com/seatmaps/fi/737-max-8.md). Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure. ## 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 or award seats by date on the SEA to KEF 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 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. Where 2LNR tracks the carrier, its departures show confirmed upgrade or award space by date. - [Icelandair (FI) route map](https://2lnr.com/routes/airlines/fi.md)\ [The aircraft FI flies](https://2lnr.com/seatmaps/fi.md) - [Alaska Airlines (AS) route map](https://2lnr.com/routes/airlines/as.md)\ [The aircraft AS flies](https://2lnr.com/seatmaps/as.md) See SEA to KEF on the interactive map → ## Frequently asked questions about SEA to KEF **How long is the flight from Seattle (SEA) to Reykjavik (KEF)?** Scheduled flight times from Seattle (SEA) to Reykjavik (KEF) run from 7h 25m to 7h 40m across the departures in the schedule table on this page. The nonstop covers about 3,611 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book. **Which airlines fly nonstop from SEA to KEF?** Icelandair and Alaska Airlines fly SEA to KEF nonstop. 2LNR tracks confirmed upgrade and award space on Alaska Airlines. **How many flights a week are there from SEA to KEF?** About 8 nonstop flights a week run between Seattle (SEA) and Reykjavik (KEF) 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 15:35 and 19:10, local time at Seattle. The schedule table on this page lists every departure by date, with its arrival time and aircraft. **Which flights operate SEA to KEF nonstop?** In the schedule table on this page, SEA to KEF nonstops fly as FI 680 and FI 682 on Icelandair. The table lists each departure by date with its times 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. Flying the other way? See [KEF to SEA upgrade and award space](https://2lnr.com/routes/kef-sea.md). Award seats rather than schedules? See [Alaska Airlines award availability](https://2lnr.com/awards/as.md). Looking beyond this route? See [every route from Seattle (SEA)](https://2lnr.com/routes/sea.md), or [every route from Reykjavik (KEF)](https://2lnr.com/routes/kef.md). Nonstops to Reykjavik (KEF) from other airports within 150 miles of Seattle (SEA): - [Vancouver (YVR) to Reykjavik (KEF)](https://2lnr.com/routes/yvr-kef.md), 127 miles from SEA - [Portland (PDX) to Reykjavik (KEF)](https://2lnr.com/routes/pdx-kef.md), 129 miles from SEA Distances are great-circle between the airports, not driving distance. - [How Alaska upgrades clear](https://2lnr.com/about/as/upgrades.md) - [How to read award availability by date](https://2lnr.com/guides/award-availability.md) ## Never miss SEA to KEF upgrade or award space See what's open by date on this route, the next 14 days free on every product and the full horizon on Pro. [Get started free](https://2lnr.com/login)