SEA → KEFSeattle to Reykjavík

live

Direct flights from Seattle (SEA) to Reykjavík (KEF): 7 nonstop departures observed each week across 1 airline. 86% of the last 7 operated flights arrived within 15 minutes of schedule. The median arrival is 20 minutes early. No cancellations were recorded across the 7 tracked flights. The nonstop covers 5,811 km, an estimated 7 hours 57 minutes in the air. Measured by Pro Flight Search from live flight boards at Seattle and Reykjavík. Updated 27 October 2026 at 09:19 UTC.

Today, SEA → KEF

Tue 27 Oct · local times
  1. 15:35 FI680Icelandair Sched 15:35Departure not confirmed by the board ·

Checked SEA board 02:19 · KEF board 08:52

SEA Seattle smooth · +0
KEF Reykjavík smooth · +0
5,811 km · ~7h 57m est.
dep bank 15:40–19:007x weekly
Runs reliable · 1 airline · 7x weekly · nonstop
86% on time

of the last 7 operated SEA → KEF flights arrived within 15 minutes

Median arrival delay is −20 min. 0 of 7 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival−20 minacross the last 7 operated legs
Flight time~7h 57mestimated from route distance
Weekly departures7x1 direct airline on the leg

The week

scheduled departures · origin local time
06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Icelandair

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
IcelandairFI86% on time

Flights FI680 15:40 Mo Tu We Fr Sa Su · FI682 19:00 daily

History

operated legs · board outcomes
10-26FI680arrived−20
10-25FI680arrived−24
10-25FI682arrived−2
10-24FI680arrived−31
10-24FI682arrived+19
10-23FI680arrived−29
10-23FI682arrived−15

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 +0 min smooth ⛅ overcast · S 4 kt Full SEA delay board →
KEFReykjavík +0 min smooth ⛅ overcast · NNW 15 kt Full KEF delay board →

Weather lens

Current conditions put the pressure at KEF: 30% odds of a 15+ minute delay and around +3 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 Reykjavík route actually runs

Pro Flight Search records official board updates for nonstop SEA to KEF 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 Reykjavík (KEF) route reliability, measured from operated flights on official airport boards.

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

SEA to KEF questions

Is SEA–KEF running on time right now?

Mostly on schedule. Both endpoints currently score the same, route health score 80/100. The airports section above carries the live status and delay window at both ends.

Morning or evening flight on SEA–KEF?

Operators schedule evening departures around 19:00 from SEA. Earlier flights typically land before destination-airport delays accumulate later in the day; check the KEF delay card to confirm conditions when you'd arrive.

How long is the flight from SEA to KEF?

Great-circle distance is 5,811 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 440–528 min gate-to-gate on this route.

How often does SEA–KEF fly?

Icelandair runs the route with about 13 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.