$1,408+ 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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — USM
Oct 15 — Oct 221
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.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 September 15, 2025.
Round-trip from | $1,073 (Travelocity) |
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Find flight deals from Oregon to Ko Samui
Cheapest flights from Oregon to Ko SamuiExplore 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 September 15, 2025.
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 September 15, 2025.
This Gurufare deal was found by Cheapflights users on 9/15. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/238:37 pmPDX - USM
3 stops27h 08mMultiple Airlines
Tue 9/302:00 pmUSM - PDX
3 stops30h 17mMultiple Airlines
Deal found 9/15![Multiple Airlines logo]()
$1,408
This Singapore Airlines deal was found by Cheapflights users on 9/14. 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/207:00 amPDX - USM
2 stops45h 15mSingapore Airlines
Wed 9/241:30 pmUSM - PDX
2 stops38h 05mSingapore Airlines
Deal found 9/14![Singapore Airlines logo]()
$2,108
This FlightHub deal was found by Cheapflights users on 9/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/253:15 pmPDX - USM
2 stops27h 05mMultiple Airlines
Fri 1/21:25 pmUSM - PDX
2 stops34h 50mMultiple Airlines
Deal found 9/13![Multiple Airlines logo]()
$3,960
This Qatar Airways deal was found by Cheapflights users on 9/13. 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 12/2510:40 amPDX - USM
3 stops33h 00mQatar Airways
Fri 1/27:35 pmUSM - PDX
3 stops36h 22mQatar Airways
Deal found 9/13![Qatar Airways logo]()
$4,826
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 September 15, 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
Tue 9/23
11:03 am-6:35 pm
2 stops41h 32m
Ko Samui
Tue 9/30
6:55 pm-4:50 pm
3 stops35h 55m
$1,781
PortlandKo Samui
PDX - USM
PDXUSM
Portland
Sat 9/20
7:00 am-6:15 pm
2 stops45h 15m
Ko Samui
Wed 9/24
1:30 pm-1:35 pm
2 stops38h 05m
$2,108
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 September 15, 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.
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.
Traveling to a place near Ko Samui?
Book flights to Ko Samui if you plan to visit one of these locationsKo Tao
Ko Pha Ngan