Cheap flights from Portland (PDX) to Koh Samui (USM)

Flight FAQs

From Portland to Koh Samui

Are flight prices decreasing from Portland to Koh Samui due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Portland and Koh Samui for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Does it rain more in Portland or Koh Samui?

When traveling, it's generally smart to pack in preparation for rain or any other conditions that may arise. The rainfall in Portland is roughly similar to Koh Samui. You can assume this to be the case over the next 21 days.

Is Portland weather warmer or cooler than Koh Samui?

Expect the weather to be around 91 °F on average in May. As the temperature peaks, try to get your plans done early, as flight price and availability will have an impact on your travels. The climate in Koh Samui is generally hotter than in Portland.