Cheap Flights from Portland to Koh Samui
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Flights from Portland to Koh Samui
Flight deals from Portland to Koh Samui
We've found these cheap flights for you. You can book one-way or return flight tickets.
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Round-trip
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One way
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PDX 15:4536h 45m2 stopsUSM 18:30Portland - Koh Samui | Wed, Apr 16 | United Airlines
USM 08:4541h 54m2 stopsPDX 12:39Koh Samui - Portland | Tue, Apr 22 | ScootNZD 2,201 NZD 4,29749% OFF49% OFFNZD 4,297 NZD 2,201 -
PDX 13:4538h 30m2 stopsUSM 18:15Portland - Koh Samui | Wed, May 7 | United Airlines
USM 16:2534h 14m2 stopsPDX 12:39Koh Samui - Portland | Wed, May 14 | Bangkok AirwaysNZD 2,345 NZD 4,29745% OFF45% OFFNZD 4,297 NZD 2,345
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PDX 13:4538h 30m2 stopsUSM 18:15Portland - Koh Samui | Wed, Apr 30 | United Airlines
USM 16:2546h 6m2 stopsPDX 00:31Koh Samui - Portland | Wed, May 7 | Bangkok AirwaysNZD 2,347 NZD 4,29745% OFF45% OFFNZD 4,297 NZD 2,347
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PDX 19:3332h 42m2 stopsUSM 18:15Portland - Koh Samui | Sun, Apr 20 | United Airlines
USM 08:2030h 10m2 stopsPDX 00:30Koh Samui - Portland | Sat, Apr 26 | Bangkok AirwaysNZD 2,65338% OFFNZD 4,297 NZD 2,653
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PDX 17:0635h 29m2 stopsUSM 18:35Portland - Koh Samui | Wed, May 21 | Alaska Airlines
USM 10:5527h 4m2 stopsPDX 23:59Koh Samui - Portland | Wed, May 28 | Cathay PacificNZD 2,93132% OFFNZD 4,297 NZD 2,931 -
PDX 17:3934h 56m2 stopsUSM 18:35Portland - Koh Samui | Wed, May 7 | Alaska Airlines
USM 10:5523h 42m2 stopsPDX 20:37Koh Samui - Portland | Wed, May 14 | Cathay PacificNZD 2,98331% OFFNZD 4,297 NZD 2,983
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PDX 17:3958h 56m2 stopsUSM 18:35Portland - Koh Samui | Wed, Apr 30 | Cathay Pacific
USM 10:5526h 47m2 stopsPDX 23:42Koh Samui - Portland | Wed, May 7 | Cathay PacificNZD 3,03928% OFFNZD 4,297 NZD 3,039 -
PDX 07:0045h 35m2 stopsUSM 18:35Portland - Koh Samui | Wed, May 7 | Cathay Pacific
USM 10:5526h 47m2 stopsPDX 23:42Koh Samui - Portland | Wed, May 14 | Cathay PacificNZD 3,04028% OFFNZD 4,297 NZD 3,040
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PDX 08:0044h 35m2 stopsUSM 18:35Portland - Koh Samui | Sun, Apr 20 | Cathay Pacific
USM 10:5543h 24m2 stopsPDX 16:19Koh Samui - Portland | Sat, Apr 26 | Cathay PacificNZD 3,09628% OFFNZD 4,297 NZD 3,096
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PDX 18:5533h 40m2 stopsUSM 18:35Portland - Koh Samui | Sun, Apr 20 | Alaska Airlines
USM 10:5548h 50m2 stopsPDX 21:45Koh Samui - Portland | Sat, Apr 26 | Cathay PacificNZD 3,13627% OFFNZD 4,297 NZD 3,136
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PDX 13:0017h 25m1 stopsUSM Invalid DatePortland - Koh Samui | Fri, Apr 18 | Normal Airline
USM 15:006hDirectPDX 16:00Koh Samui - Portland | Sun, Apr 20 | Normal AirlineFind More FlightsFind More Flights
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PDX 13:4538h 30m2 stopsUSM 18:15Portland - Koh Samui | Fri, May 2 | United AirlinesNZD 1,327 NZD 2,45246% OFF46% OFFNZD 2,452 NZD 1,327
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PDX 17:5048h2 stopsUSM 07:50Portland - Koh Samui | Fri, May 2 | Alaska AirlinesNZD 1,515 NZD 2,45238% OFF38% OFFNZD 2,452 NZD 1,515
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PDX 07:5444h 41m2 stopsUSM 18:35Portland - Koh Samui | Wed, May 7 | United AirlinesNZD 1,561 NZD 2,45236% OFF36% OFFNZD 2,452 NZD 1,561
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PDX 17:5034h 45m2 stopsUSM 18:35Portland - Koh Samui | Wed, May 7 | Hawaiian AirlinesNZD 1,57436% OFFNZD 2,452 NZD 1,574 -
PDX 10:3042h 5m2 stopsUSM 18:35Portland - Koh Samui | Wed, May 7 | Alaska AirlinesNZD 1,57636% OFFNZD 2,452 NZD 1,576
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PDX 17:0635h 29m2 stopsUSM 18:35Portland - Koh Samui | Wed, May 21 | Alaska AirlinesNZD 1,64933% OFFNZD 2,452 NZD 1,649
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PDX 07:2134h 29m2 stopsUSM 07:50Portland - Koh Samui | Tue, May 20 | Alaska AirlinesNZD 1,66132% OFFNZD 2,452 NZD 1,661
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PDX 17:5034h 45m2 stopsUSM 18:35Portland - Koh Samui | Wed, May 7 | Cathay PacificNZD 1,68031% OFFNZD 2,452 NZD 1,680
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PDX 17:5034h 45m2 stopsUSM 18:35Portland - Koh Samui | Fri, May 2 | Hawaiian AirlinesNZD 1,68331% OFFNZD 2,452 NZD 1,683
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PDX 17:5034h 45m2 stopsUSM 18:35Portland - Koh Samui | Fri, May 2 | Cathay PacificNZD 1,79027% OFFNZD 2,452 NZD 1,790
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PDX 13:0017h 25m1 stopsUSM Invalid DatePortland - Koh Samui | Fri, Apr 18 | Normal AirlineFind More FlightsFind More Flights
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Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.
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FAQ
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When are flight tickets from Portland (PDX) to Koh Samui (USM) the cheapest?
Airlines adjust prices for flights from Portland to Koh Samui based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays. -
How much do flights from Portland (PDX) to Koh Samui (USM) cost?
According to Trip.com's data, the lowest price is around NZD 3,916.
How to find a cheap flight from Portland to Koh Samui
Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Portland to Koh Samui. Book your flights at the right time and save more.
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Flight Information from Portland to Koh Samui
| Off-season for travel | January |
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| Peak season for travel | May |
| Flight distance | 12,552.9 km |
| Popular airline | Alaska Airlines |