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Koh Samui

$1,211+ Cheap flights from Portland (PDX) 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 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — USM
Dec 23 — Dec 301
Mon 12/23
Mon 12/30
1 adult, Economy
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Cheap flight deals from Portland to Koh Samui

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Koh Samui (USM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 18, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,387
(CheapOair)

One-way from

$1,211
(Cathay Pacific)
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 Portland to Ko Samui
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One-way flight from Portland to Ko Samui
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Find flight deals from Portland to Koh Samui

Best flights from Portland to Koh Samui
Discover carefully curated flight deals from Portland to Koh Samui that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2024.

This CheapOair deal was found by Cheapflights users on 12/18. 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 3/267:05 pmPDX - USM
2 stops23h 35mMultiple Airlines
Wed 4/91:30 pmUSM - PDX
2 stops39h 14mMultiple Airlines
Deal found 12/18$1,387
This Qatar Airways deal was found by Cheapflights users on 12/18. 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
Wed 4/99:10 pmUSM - PDX
3 stops36h 12mQatar Airways
Deal found 12/18$2,051
This Ovago deal was found by Cheapflights users on 12/16. 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.
Thu 1/165:26 pmPDX - USM
2 stops35h 09mCathay Pacific
Fri 1/2411:40 amUSM - PDX
2 stops47h 14mCathay Pacific
Deal found 12/16$2,125
This FlightHub deal was found by Cheapflights users on 12/17. 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.
Wed 3/267:00 amPDX - USM
3 stops45h 15mSingapore Airlines
Wed 4/91:30 pmUSM - PDX
2 stops41h 35mSingapore Airlines
Deal found 12/17$2,273

Find flights from Portland to Koh Samui within your budget

Customize your flight search to find flights from Portland 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 December 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

PortlandKoh Samui

PDX - USM

PDXUSM

Portland

Wed 3/26

7:05 pm-8:40 am

2 stops23h 35m

Ko Samui

Wed 4/9

1:30 pm-2:44 pm

2 stops39h 14m

$1,387

PortlandKoh Samui

PDX - USM

PDXUSM

Portland

Wed 3/26

11:36 am-10:40 am

3 stops33h 04m

Ko Samui

Wed 4/9

9:10 pm-7:22 pm

3 stops36h 12m

$2,051

PortlandKoh Samui

PDX - USM

PDXUSM

Portland

Thu 1/16

5:26 pm-7:35 pm

2 stops35h 09m

Ko Samui

Fri 1/24

11:40 am-7:54 pm

2 stops47h 14m

$2,125

PortlandKoh Samui

PDX - USM

PDXUSM

Portland

Wed 3/26

7:00 am-6:15 pm

3 stops45h 15m

Ko Samui

Wed 4/9

1:30 pm-5:05 pm

2 stops41h 35m

$2,273

PortlandKoh Samui

PDX - USM

PDXUSM

Portland

Sun 1/5

6:14 pm-7:35 pm

2 stops34h 21m

$1,211

PortlandKoh Samui

PDX - USM

PDXUSM

Portland

Sun 1/5

9:20 am-7:40 am

3 stops31h 20m

$1,716

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/18

Compare providers for flights from Portland to Koh Samui

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Koh Samui in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*2 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Portland-Koh Samui flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-Koh Samui flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Koh Samui flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland-Koh Samui flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland-Koh Samui flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Portland to Koh Samui

Have a flexible travel schedule? Discover the best time to fly to Koh Samui from Portland 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 Portland to Koh Samui

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

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 December 18, 2024.
Japan Airlines
8.3
Very good
1,443 reviews

Boarding

8.4

Comfort

8.2

Entertainment

7.8

Crew

8.7

Overall

8.3

Food

7.7

Reviews

1 / 10

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Japan Airlines
8.3
Very good
1,443 reviews
Japan Airlines
8.3
Very good
1,443 reviews

Boarding

8.4

Comfort

8.2

Entertainment

7.8

Crew

8.7

Overall

8.3

Food

7.7

Reviews

1 / 10

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Singapore Airlines
8.1
Very good
1,329 reviews
Japan Airlines
8.3
Very good
1,443 reviews

Boarding

8.4

Comfort

8.2

Entertainment

7.8

Crew

8.7

Overall

8.3

Food

7.7

Reviews

1 / 10

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Cathay Pacific
7.5
Good
841 reviews
Japan Airlines
8.3
Very good
1,443 reviews

Boarding

8.4

Comfort

8.2

Entertainment

7.8

Crew

8.7

Overall

8.3

Food

7.7

Reviews

1 / 10

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Qatar Airways
7.5
Good
3,798 reviews
Japan Airlines
8.3
Very good
1,443 reviews

Boarding

8.4

Comfort

8.2

Entertainment

7.8

Crew

8.7

Overall

8.3

Food

7.7

Reviews

1 / 10

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Related info for your journey

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

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portland 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.

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