Seattle to Reykjavik Jetlag Recovery Guide
Flying eastbound from Seattle to Reykjavik involves a 7-hour timezone shift, rated "3" in difficulty. Expect around 7.8 days for full recovery. Below you will find departure timing tips, a day-by-day recovery plan, and seasonal advice.
SeattleReykjavik
SEA to KEF
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Airlines on this route: Alaska (AS)
Flight Options & Recovery Plans
Scheduled flights from Seattle to Reykjavik with estimated jetlag recovery timelines. Departure time significantly affects recovery — earlier or later flights can mean days of difference.
Frequently Asked Questions: Seattle to Reykjavik Jetlag
How bad is jetlag from Seattle to Reykjavik?+
Jetlag from Seattle (SEA) to Reykjavik (KEF) is rated "3" with a 7-hour timezone shift traveling eastbound. Conservative recovery estimate is 7.8 days.
What is the best time to fly from Seattle to Reykjavik for jetlag?+
For eastbound travel from Seattle to Reykjavik, overnight flights arriving in the morning tend to minimize jetlag impact.
How long does it take to recover from Seattle to Reykjavik jetlag?+
Recovery from Seattle to Reykjavik jetlag typically takes 7.8 days with a conservative approach or 5.4 days with an aggressive light therapy and melatonin strategy. The 7-hour eastbound shift is harder because your body must advance its clock.
Is eastbound or westbound worse for jetlag?+
Eastbound travel is generally harder for jetlag recovery because it requires advancing your circadian clock, which the body resists. Westbound travel involves delaying your clock, which is more natural. For every hour of timezone shift, eastbound recovery takes about 1.5 days vs 1 day for westbound.