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Koh Samui

$668+ Cheap flights from Oregon to Koh Samui (USM)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/5. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — USM
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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Cheap flight deals from Oregon to Koh Samui

Keep the following information in mind while searching for Oregon to Koh Samui flight deals. Data was last updated February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,256
(Expedia)

One-way from

$668
(Kiwi.com)
Provider with most accurate pricing for Portland-Ko Samui flight deals.
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Provider most trusted by Cheapflights users for Portland-Ko Samui flights.
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From Oregon to Ko Samui
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One-way flight from Oregon to Ko Samui
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Find flight deals from Oregon to Koh Samui

Cheapest flights from Oregon to Koh Samui
Explore the most affordable flight options available from Oregon to Koh Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This Expedia deal was found by Cheapflights users on 2/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/267:05 pmPDX - USM
2 stops35h 40mMultiple Airlines
Fri 4/111:30 pmUSM - PDX
2 stops39h 15mMultiple Airlines
Deal found 2/20$1,256
This KAYAK deal was found by Cheapflights users on 2/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/266:05 pmPDX - USM
2 stops59h 30mCathay Pacific
Wed 4/910:55 amUSM - PDX
2 stops24h 04mCathay Pacific
Deal found 2/20$1,781
This CheapOair deal was found by Cheapflights users on 2/19. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/267:00 amPDX - USM
3 stops34h 40mJapan Airlines
Wed 4/99:00 pmUSM - PDX
3 stops33h 13mJapan Airlines
Deal found 2/19$1,972
This Qatar Airways deal was found by Cheapflights users on 2/20. 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.
Wed 3/2611:36 amPDX - USM
3 stops33h 04mQatar Airways
Fri 4/116:25 pmUSM - PDX
3 stops36h 03mQatar Airways
Deal found 2/20$2,565
This KAYAK deal was found by Cheapflights users on 2/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/267:00 amPDX - USM
3 stops45h 15mSingapore Airlines
Fri 4/111:30 pmUSM - PDX
2 stops47h 19mSingapore Airlines
Deal found 2/20$2,723

Find flights from Oregon to Koh Samui within your budget

Customize your flight search to find flights from Oregon to Koh 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 February 20, 2025.

Fly from

Oregon

Fly to

Koh Samui

Route

Depart

Return

Price

PortlandKoh Samui

PDX - USM

PDXUSM

Portland

Wed 3/26

7:05 pm-8:45 pm

2 stops35h 40m

Ko Samui

Fri 4/11

1:30 pm-2:45 pm

2 stops39h 15m

$1,256

PortlandKoh Samui

PDX - USM

PDXUSM

Portland

Wed 3/26

6:05 pm-7:35 pm

2 stops59h 30m

Ko Samui

Wed 4/9

10:55 am-8:59 pm

2 stops24h 04m

$1,781

PortlandKoh Samui

PDX - USM

PDXUSM

Portland

Wed 3/26

7:00 am-7:40 am

3 stops34h 40m

Ko Samui

Wed 4/9

9:00 pm-4:13 pm

3 stops33h 13m

$1,972

PortlandKoh Samui

PDX - USM

PDXUSM

Portland

Wed 3/26

11:36 am-10:40 am

3 stops33h 04m

Ko Samui

Fri 4/11

6:25 pm-4:28 pm

3 stops36h 03m

$2,565

PortlandKoh Samui

PDX - USM

PDXUSM

Portland

Wed 3/26

7:00 am-6:15 pm

3 stops45h 15m

Ko Samui

Fri 4/11

1:30 pm-10:49 pm

2 stops47h 19m

$2,723

PortlandKoh Samui

PDX - USM

PDXUSM

Portland

Sat 4/5

5:20 pm-6:30 pm

2 stops59h 10m

$668

PortlandKoh Samui

PDX - USM

PDXUSM

Portland

Mon 5/19

7:21 am-6:35 pm

2 stops45h 14m

$976

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Best time to book a flight from Oregon to Koh Samui

Have a flexible travel schedule? Discover the best time to fly to Koh 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.

Travel insights for flights from Oregon to Koh Samui

Get recent, data-driven insights about flights from Oregon to Koh Samui including ideal travel times, pricing trends, and more.

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

Find hourly flight availability from Oregon to Koh Samui. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 20, 2025.

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

Rainfall in Koh Samui by month

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

In terms of precipitation, rainfall in Koh 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 Koh Samui when rainfall is around 2.3 in.

Temperature in Koh Samui by month

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

If weather is an important factor for your trip to Koh 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 Koh Samui

Get insights into the airlines that provide service to Koh 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 Koh Samui. Reviews last updated February 20, 2025.
Singapore Airlines
8.1
Very good
1,299 reviews

Food

7.7

Overall

8.1

Comfort

7.9

Crew

8.6

Entertainment

8.0

Boarding

8.2

Reviews

1 / 20

6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles

Singapore Airlines
8.1
Very good
1,299 reviews
Singapore Airlines
8.1
Very good
1,299 reviews

Food

7.7

Overall

8.1

Comfort

7.9

Crew

8.6

Entertainment

8.0

Boarding

8.2

Reviews

1 / 20

6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles

Cathay Pacific
7.5
Good
821 reviews
Singapore Airlines
8.1
Very good
1,299 reviews

Food

7.7

Overall

8.1

Comfort

7.9

Crew

8.6

Entertainment

8.0

Boarding

8.2

Reviews

1 / 20

6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles

Qatar Airways
7.4
Good
3,609 reviews
Singapore Airlines
8.1
Very good
1,299 reviews

Food

7.7

Overall

8.1

Comfort

7.9

Crew

8.6

Entertainment

8.0

Boarding

8.2

Reviews

1 / 20

6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles

Related info for your journey

Find useful and relevant information for your journey from Oregon to Koh 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 Koh Samui from Oregon?

    If you book a flight to Koh 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 Koh Samui.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Oregon to Koh 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 Pha Ngan
Ko Tao

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Alternative routes for Oregon to Koh Samui

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