Which airports can I use when flying from Portland to Ko Samui?

Flights from Portland to Ko Samui usually depart from Portland (PDX) and arrive at Ko Samui (USM).

What cabin classes can I book on flights from Portland to Ko Samui?

Only Economy Class is available on flights from Portland to Ko Samui.

Can I save money by using flexible dates for flights from Portland to Ko Samui?

Yes. Flexible dates can save you up to 30% on flights from Portland to Ko Samui. Sunday is the cheapest departure day at $1,282 round-trip on average, while Tuesday is the most expensive at $1,811, a difference of $529. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

What popular places can I visit in Ko Samui?

Some of the most popular sights in Ko Samui are Lamai Beach, Chaweng Beach and Choeng Mon Beach. These are among the most viewed places in Ko Samui on KAYAK.

Do I need a passport to fly from Portland to Ko Samui?

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

Have flight prices from Portland to Ko Samui changed much recently?

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $1,201 to $5,310. That means the highest observed fare was about 4x higher than the lowest one.

What is the time difference between Portland and Ko Samui?

Ko Samui is 15 hours ahead of Portland (Indochina Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

What car rental options are available at Ko Samui Airport (USM)?

Ko Samui Airport (USM) hosts 5 major car rental companies, with daily rates averaging $29 for economy cars. Top options include: • Drive Car Rental • Alamo • Sixt • Enterprise Rent-A-Car • Thai Rent

How much should I expect to pay for a Portland to Ko Samui flight?

Round-trip flights from Portland to Ko Samui range from $1,284 to $1,329, with an average of $1,322 over the past 12 months. Anything below $1,284 counts as a good deal.

How much is a round-trip flight from Portland to Ko Samui?

Round-trip flights from Portland to Ko Samui typically range from $1,284 to $1,329. The lowest price found in the past 5 days was $1,201, on Cathay Pacific.

Which airline is the cheapest to fly from Portland to Ko Samui?

Cathay Pacific ($1,201) offered the cheapest round-trip ticket from Portland to Ko Samui in the last 5 days.

$1,201 CHEAP FLIGHTS from Portland to Ko Samui (PDX - USM)

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Cheapest round-trip

$1,201

Typical prices: $1,284-$1,329

Cathay Pacific

Sun 4/15Thu 4/19

PDX - USM • 2 stops

When to travel

September

Cheapest • 7% price drop

February

Most popular

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Flight Deals

Cheap Flights from Portland to Ko Samui (PDX-USM)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Recent round-trip flight deals from Portland to Ko Samui

Thu, Apr 15 - Mon, Apr 19

10:30 am - 7:40 pmPDX Portland-USM Ko Samui

43h 10m2 stops Vancouver Intl Hong Kong Intl

11:55 am - 6:33 pmUSM Ko Samui-PDX Portland

44h 38m2 stops Hong Kong Intl Seattle/Tacoma Intl

$1,201Cathay Pacific

Thu, Apr 15 - Mon, Apr 19

10:30 am - 7:40 pmPDX Portland-USM Ko Samui

43h 10m2 stops Vancouver Intl Hong Kong Intl

11:55 am - 6:33 pmUSM Ko Samui-PDX Portland

44h 38m2 stops Hong Kong Intl Seattle/Tacoma Intl

$1,202Cathay Pacific

Tue, Dec 1 - Fri, Dec 11

7:00 am - 7:35 pmPDX Portland-USM Ko Samui

45h 35m2 stops Vancouver Intl Hong Kong Intl

11:40 am - 1:50 pmUSM Ko Samui-PDX Portland

41h 10m2 stops Hong Kong Intl San Francisco

$2,367Multiple Airlines

Tue, Dec 1 - Fri, Dec 11

7:00 am - 7:35 pmPDX Portland-USM Ko Samui

45h 35m2 stops Vancouver Intl Hong Kong Intl

11:40 am - 1:50 pmUSM Ko Samui-PDX Portland

41h 10m2 stops Hong Kong Intl San Francisco

$2,368Multiple Airlines

Tue, Dec 1 - Fri, Dec 11

2:34 pm - 7:35 pmPDX Portland-USM Ko Samui

38h 01m2 stops Dallas/Fort Worth Hong Kong Intl

11:40 am - 1:50 pmUSM Ko Samui-PDX Portland

41h 10m2 stops Hong Kong Intl San Francisco

$2,383Cathay Pacific

Tue, Dec 1 - Fri, Dec 11

3:15 pm - 7:35 pmPDX Portland-USM Ko Samui

37h 20m2 stops Vancouver Intl Hong Kong Intl

11:40 am - 9:27 amUSM Ko Samui-PDX Portland

36h 47m2 stops Hong Kong Intl San Francisco

$2,879Multiple Airlines

Tue, Dec 1 - Fri, Dec 11

7:30 am - 7:45 amPDX Portland-USM Ko Samui

33h 15m3 stops Seattle/Tacoma Intl Hong Kong Intl Bangkok Suvarnabhumi

11:40 am - 1:50 pmUSM Ko Samui-PDX Portland

41h 10m2 stops Hong Kong Intl San Francisco

$2,988Cathay Pacific

Booking Insights

Price, demand and travel trends for Portland to Ko Samui flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Prices

Airlines

How much is a round-trip flight from Portland to Ko Samui? This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Portland to Ko Samui departing in april.

Find deals

Expert advice

Our travel experts

Harriet Baskas

Expert on Alaska Airlines and JetBlue

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Low season	June
High season	February
Cheapest flight	$1,201

Beat the crowds with an average 82% drop in travelers.

The most popular month to fly with an average 26% increase in travelers.

Round-trip flight from Portland to Ko Samui

When to book flights from Portland to Ko Samui

Are your dates flexible? Find out the best times to travel from Portland to Ko Samui based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

What cabin classes can I book on flights from Portland to Ko Samui?
Only Economy Class is available on flights from Portland to Ko Samui.
Do I need a passport to fly from Portland to Ko Samui?
Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.
How much should I expect to pay for a Portland to Ko Samui flight?
Round-trip flights from Portland to Ko Samui range from $1,284 to $1,329, with an average of $1,322 over the past 12 months. Anything below $1,284 counts as a good deal.
Have flight prices from Portland to Ko Samui changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $1,201 to $5,310. That means the highest observed fare was about 4x higher than the lowest one.
What car rental options are available at Ko Samui Airport (USM)?
Ko Samui Airport (USM) hosts 5 major car rental companies, with daily rates averaging $29 for economy cars. Top options include:

• Drive Car Rental
• Alamo
• Sixt
• Enterprise Rent-A-Car
• Thai Rent
Which airports can I use when flying from Portland to Ko Samui?
Flights from Portland to Ko Samui usually depart from Portland (PDX) and arrive at Ko Samui (USM).
Can I save money by using flexible dates for flights from Portland to Ko Samui?
Yes. Flexible dates can save you up to 30% on flights from Portland to Ko Samui. Sunday is the cheapest departure day at $1,282 round-trip on average, while Tuesday is the most expensive at $1,811, a difference of $529.

Cheaper weekend fares like these are typical of routes dominated by weekday business travel.
What is the time difference between Portland and Ko Samui?
Ko Samui is 15 hours ahead of Portland (Indochina Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.
What popular places can I visit in Ko Samui?
Some of the most popular sights in Ko Samui are Lamai Beach, Chaweng Beach and Choeng Mon Beach. These are among the most viewed places in Ko Samui on KAYAK.

If your dates are flexible, aim for a Sunday departure and avoid flying on Tuesday. On this route, Sunday flights average $1,282, about $529 less than Tuesday fares (29% savings) based on the last 12 months.
If you can choose when to travel, plan your Portland to Ko Samui trip for September. Fares historically average $1,234 round-trip in that month - typically $577 less than the most expensive month, which is December (based on the last 12 months).
If you're arriving late at night and need somewhere to stay, check out these hotels close to Ko Samui Airport.

• Ozo Chaweng Samui - Sha Extra Plus
• Melia Koh Samui
• Amari Koh Samui

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Everything you should know

Cheap Flights from Portland to Ko Samui (PDX-USM)

Recent round-trip flight deals from Portland to Ko Samui

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Price, demand and travel trends for Portland to Ko Samui flights

How much is a round-trip flight from Portland to Ko Samui?

Which airline is the cheapest to fly from Portland to Ko Samui?

Expert advice for your flight from Portland to Ko Samui

Key details for Portland to Ko Samui flights

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When to book flights from Portland to Ko Samui

Your Portland to Ko Samui flight questions, answered

Your guide to booking Portland to Ko Samui flights

More options for your flight from Portland to Ko Samui

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