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 ฿43,000 return on average, while Tuesday is the most expensive at ฿60,743, a difference of ฿17,743. 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 Chaweng Beach, Lamai Beach, and Bophut 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, return flight prices on this route showed a wide range, from about ฿36,426 to ฿224,177. That means the highest observed fare was about 6x higher than the lowest one.

How are flight prices from Portland to Ko Samui looking right now?

One-way fares from Portland to Ko Samui are currently higher than usual. Average one-way flight prices are about ฿60,827, which is 47% above the typical average for this route.

What is the time difference between Portland and Ko Samui?

Ko Samui is 14 hours ahead of Portland (Indochina Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

Which car hire options are available at Ko Samui Airport (USM)?

Ko Samui Airport (USM) hosts 5 major car rental companies, with daily rates starting from around ฿428 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?

Return flights from Portland to Ko Samui range from ฿43,016 to ฿44,339, with an average of ฿44,339 over the past 12 months. Anything below ฿43,016 counts as a good deal.

Cheap Flights from Portland to Ko Samui | KAYAK

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Cheapest return flight

฿36,426

Typical prices: ฿43,016-฿44,339

Multiple Airlines

Fri 16/11Fri 23/11

PDX - USM • 2 stops

Cheapest one-way flight

฿59,570

Typical prices: ฿22,168-฿41,303

Multiple Airlines

Tue 25/12

PDX - USM • 3 stops

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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.

Return

One-way

Recent return flight deals from Portland to Ko Samui

Mon 16 Nov - Mon 23 Nov

17:04 - 19:35PDX Portland-USM Ko Samui

35h 31m2 stops Los Angeles Hong Kong Intl

11:40 - 20:47USM Ko Samui-PDX Portland

24h 07m2 stops Hong Kong Intl Los Angeles

฿36,426Multiple Airlines

22 hours ago

Sat 27 Feb - Thu 11 Mar

21:50 - 19:35PDX Portland-USM Ko Samui

54h 45m2 stops San Francisco Hong Kong Intl

11:40 - 23:54USM Ko Samui-PDX Portland

27h 14m2 stops Hong Kong Intl Los Angeles

฿36,828Multiple Airlines

22 hours ago

Sun 1 Nov - Thu 26 Nov

10:46 - 19:35PDX Portland-USM Ko Samui

41h 49m2 stops Los Angeles Hong Kong Intl

11:40 - 10:36USM Ko Samui-PDX Portland

37h 56m2 stops Hong Kong Intl Los Angeles

฿37,130Multiple Airlines

4 hours ago

Mon 16 Nov - Mon 23 Nov

17:04 - 19:35PDX Portland-USM Ko Samui

35h 31m2 stops Los Angeles Hong Kong Intl

20:30 - 11:40USM Ko Samui-PDX Portland

30h 10m3 stops Bangkok Suvarnabhumi Hong Kong Intl Seattle/Tacoma Intl

฿37,499Multiple Airlines

22 hours ago

Tue 16 Feb - Tue 23 Feb

17:40 - 19:35PDX Portland-USM Ko Samui

34h 55m2 stops Los Angeles Hong Kong Intl

16:30 - 09:46USM Ko Samui-PDX Portland

32h 16m3 stops Bangkok Suvarnabhumi Hong Kong Intl San Francisco

฿39,009Multiple Airlines

3+ days ago

Sun 1 Nov - Thu 26 Nov

17:04 - 19:35PDX Portland-USM Ko Samui

35h 31m2 stops Los Angeles Hong Kong Intl

11:40 - 09:43USM Ko Samui-PDX Portland

37h 03m3 stops Hong Kong Intl Vancouver Intl Seattle/Tacoma Intl

฿39,176Multiple Airlines

4 hours ago

Mon 16 Nov - Mon 23 Nov

06:53 - 07:10PDX Portland-USM Ko Samui

33h 17m3 stops Los Angeles Hong Kong Intl Bangkok Suvarnabhumi

20:30 - 11:40USM Ko Samui-PDX Portland

30h 10m3 stops Bangkok Suvarnabhumi Hong Kong Intl Seattle/Tacoma Intl

฿40,484Multiple Airlines

22 hours ago

Sat 27 Feb - Fri 12 Mar

21:30 - 07:10PDX Portland-USM Ko Samui

42h 40m3 stops Los Angeles Hong Kong Intl Bangkok Suvarnabhumi

16:30 - 09:46USM Ko Samui-PDX Portland

32h 16m3 stops Bangkok Suvarnabhumi Hong Kong Intl San Francisco

฿42,162Multiple Airlines

1 day ago

Sat 27 Feb - Fri 12 Mar

17:40 - 19:35PDX Portland-USM Ko Samui

34h 55m2 stops Los Angeles Hong Kong Intl

16:30 - 09:46USM Ko Samui-PDX Portland

32h 16m3 stops Bangkok Suvarnabhumi Hong Kong Intl San Francisco

฿42,363Multiple Airlines

1 day ago

Fri 2 Apr - Wed 14 Apr

17:35 - 07:10PDX Portland-USM Ko Samui

47h 35m3 stops Seattle/Tacoma Intl Hong Kong Intl Bangkok Suvarnabhumi

11:55 - 20:31USM Ko Samui-PDX Portland

22h 36m2 stops Hong Kong Intl Los Angeles

฿43,101Multiple Airlines

3+ days ago

Useful Info

Cheapest flight	฿36,426

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 return price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns 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.

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?
Return flights from Portland to Ko Samui range from ฿43,016 to ฿44,339, with an average of ฿44,339 over the past 12 months. Anything below ฿43,016 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, return flight prices on this route showed a wide range, from about ฿36,426 to ฿224,177. That means the highest observed fare was about 6x higher than the lowest one.
How are flight prices from Portland to Ko Samui looking right now?
One-way fares from Portland to Ko Samui are currently higher than usual. Average one-way flight prices are about ฿60,827, which is 47% above the typical average for this route.
Which car hire options are available at Ko Samui Airport (USM)?
Ko Samui Airport (USM) hosts 5 major car rental companies, with daily rates starting from around ฿428 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 ฿43,000 return on average, while Tuesday is the most expensive at ฿60,743, a difference of ฿17,743.

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 14 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 Chaweng Beach, Lamai Beach, and Bophut 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 ฿43,000, about ฿17,743 less than Tuesday fares (29% savings) 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
• Royal Muang Samui Villas

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PDX - USM

฿36,426 Find Cheap Flights from Portland to Ko Samui – Compare and Save

Everything you should know

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

Recent return flight deals from Portland to Ko Samui

Recent one-way flight deals from Portland to Ko Samui

Key details for Portland to Ko Samui flights

Cheapest flight

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

Complete your trip to Ko Samui with a hotel stay or car hire

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