Home / Routes / KEF–SEA Flight Route
Reykjavik → Seattle Flights from Reykjavik (KEF) to Seattle (SEA)
Timezone shift +8h Direction westbound Flight time 7h 16m Distance 5,808 km Direct 2 airlines
Overview Airlines(20) Awards(1) Seasonal
Alliances Star Alliance SkyTeam Oneworld
Classes Economy Premium Economy Business First
Schedule su mo tu we th fr sa
Aircraft Airbus A321neo
Boeing 737 MAX 8
Boeing 757-200 (winglets)
Reykjavik to Seattle Flights Flights from Reykjavik to Seattle are operated 20 times. Departure times vary between 10:40 and 17:00. You can fly in Y and W and J and F. The flight distance is 5,808 km (3,609 miles).
Arrival Windows Best times to arrive for faster recovery
7AM–7PM
Morning light helps you stay awake longer
9PM–5AM
Arriving during your body's sleep window makes adjustment harder
The difference: choosing the right arrival window can save 1–2+ days of recovery time.
Departure Timing Best hours to depart for jetlag recovery
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Night (00–05) Morning (06–11) Afternoon (12–17) Evening (18–23)
Arrival Strategy for Seattle How to manage jetlag based on arrival time
Upon morning arrival, immediately engage with local time by getting natural sunlight and staying active. Avoid long naps and consume light, nutritious meals to help reset your circadian rhythm.
Afternoon arrivals should minimize caffeine and exposure to screens. Take a short 20-30 minute nap if necessary, but ensure it doesn't extend beyond that to prevent deeper sleep disruption.
For evening arrivals, limit heavy meals and alcohol. Create a dark, quiet sleep environment and aim to align with local nighttime as quickly as possible to minimize jetlag impact.
Best Time to Visit Seattle Monthly climate overview
Temperate oceanic (marine west coast)
Airport Recovery Facilities Jetlag-friendly amenities at each airport
Top Airlines Nonstop service on this route
10:40 Boeing 737 MAX 8 7h 16m
10:40 Boeing 737 MAX 8 7h 16m
10:40 Boeing 737 MAX 8 7h 16m
Frequently Asked Questions How many flights per week from Reykjavik to Seattle?
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Jetlag Score 40
Challenging K2 composite score
Recovery Estimate Conservative 7.0 days
Aggressive 3.0 days
Direction westbound
Route Facts Origin KEF
Destination SEA
Distance 5,808 km
Timezone Shift +8h
Direct Airlines 2
Currency USD
Languages English,Spanish
Airport Amenities SEA
Quiet Zones Lounge Beds
Search Flights Compare KEF → SEA flights ranked by jetlag score
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