$444+ Cheap flights from Seattle (SEA) to Ko Samui (USM)

When flying from Seattle to Ko Samui, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 33% versus a flight in the evening.

Travelers seeking maximum savings on their Seattle to Ko Samui flight should consider departing on Monday afternoons when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

About 17% of weekly flights between Seattle and Ko Samui have experienced delays in the past year, with the average delay time being 158 minutes.

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

Tuesday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

Over the last year, Delta have had the lowest number of delays on this route, with just 10% of flights being delayed.