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Ko Samui

$1,335+ Cheap flights from Oregon to Ko Samui (USM)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — USM
Apr 7 — Apr 141
Mon 4/7
Mon 4/14
1 adult, Economy
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Cheap flight deals from Oregon to Ko Samui

Keep the following information in mind while searching for Oregon to Ko Samui flight deals. Data was last updated April 2, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,342
(Gotogate)
Provider with most accurate pricing for Portland-Ko Samui flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Ko Samui flights.
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From Oregon to Ko Samui
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Find flight deals from Oregon to Ko Samui

Cheapest flights from Oregon to Ko Samui
Explore the most affordable flight options available from Oregon to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 2, 2025.

This Ovago deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/58:45 pmPDX - USM
3 stops27h 10mMultiple Airlines
Wed 12/107:00 pmUSM - PDX
3 stops42h 26mMultiple Airlines
Deal found 4/1$1,335
This StudentUniverse deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/59:30 pmPDX - USM
2 stops32h 35mSingapore Airlines
Wed 12/104:25 pmUSM - PDX
2 stops33h 30mSingapore Airlines
Deal found 4/1$1,445
This Qatar Airways deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2510:35 amPDX - USM
3 stops33h 05mQatar Airways
Fri 1/27:10 pmUSM - PDX
3 stops34h 39mQatar Airways
Deal found 4/1$2,552
This business-class.com deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure business-class.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/226:55 pmPDX - USM
2 stops33h 40mCathay Pacific
Tue 5/610:55 amUSM - PDX
2 stops26h 47mCathay Pacific
Deal found 3/31$6,190

Cheapflights Fare Finder

Customize your flight search to find flights from Oregon to Ko Samui that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 2, 2025.
Use the filters below to find and compare flights from Oregon to Ko Samui that are best for you.

Fly from

Oregon

Fly to

Ko Samui

Route

Depart

Return

Price

PortlandKo Samui

PDX - USM

PDXUSM

Portland

Fri 5/16

7:40 pm-9:10 pm

2 stops35h 30m

Ko Samui

Fri 5/23

4:25 pm-6:45 pm

2 stops40h 20m

$1,342

PortlandKo Samui

PDX - USM

PDXUSM

Portland

Tue 4/22

6:55 pm-6:35 pm

2 stops33h 40m

Ko Samui

Tue 5/6

10:55 am-11:42 pm

2 stops26h 47m

$6,190

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

Best time to book a flight from Oregon to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui from Oregon with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Oregon to Ko Samui

What is the cheapest time of day to fly from OR to USM?

Find hourly flight availability from Oregon to Ko Samui. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 2, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Oregon to Ko Samui as you normally would.

Rainfall in Ko Samui by month

Plan your trip to Ko Samui by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ko Samui ranges from 2.3 - 19.3 inches per month. November is typically the wettest month, when rainfall can reach 19.3 in. February is typically the driest time to visit Ko Samui when rainfall is around 2.3 in.

Temperature in Ko Samui by month

Plan your trip to Ko Samui by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ko Samui, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 80.6 F).

Reviews of airlines servicing Ko Samui

Get insights into the airlines that provide service to Ko Samui. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ko Samui. Reviews last updated April 2, 2025.
Cathay Pacific
7.5
Good
841 reviews

Food

7.2

Comfort

7.6

Entertainment

7.7

Overall

7.5

Crew

8.0

Boarding

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Mar 2025

BOS - HKG

It would have been nice to understand the dates of takeoff! We missed our flight and now have to pay an extra $454.00 Very stressful and not easy to check in or get information
Cathay Pacific
7.5
Good
841 reviews
Cathay Pacific
7.5
Good
841 reviews

Food

7.2

Comfort

7.6

Entertainment

7.7

Overall

7.5

Crew

8.0

Boarding

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Mar 2025

BOS - HKG

It would have been nice to understand the dates of takeoff! We missed our flight and now have to pay an extra $454.00 Very stressful and not easy to check in or get information

Related info for your journey

Find useful and relevant information for your journey from Oregon to Ko Samui. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Ko Samui from Oregon?

    If you book a flight to Ko Samui from Oregon, you will be flying to Ko Samui, which is the city’s only airport. Ko Samui (USM) is located 2.1 mi from the center of Ko Samui.

  • Can I find deals for flights from Oregon to Ko Samui that include hotel bookings?

    Yes. In addition to deals on Oregon to Ko Samui flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Oregon to Ko Samui?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Oregon to Ko Samui.

  • Can I find deals for business class flights from Oregon to Ko Samui?

    Yes. Cheapflights offers flight deals from Oregon to Ko Samui by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Oregon?

Book flights to Oregon if you plan to visit one of these locations
Ko Tao
Ko Pha Ngan

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