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Flights from Portland to Koh Samui
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Flights from Portland to Koh Samui Starting at £467

Whether you’re going for a one-way or round-trip to Koh Samui, we’ve got you covered! Check out these different flight options from Portland below.

  • One way
  • Round-trip
      • PDX07:54
        44h 36m
        2 stops
        USM18:30
        Tue, Apr 1|Portland - Koh Samui|United Airlines
        £467£1,041
        55% OFF
        55% OFF
        £1,041£467

        Choose United Airlines flights from Portland to Koh Samui. The one-way connecting flight with United Airlines departs from Portland International Airport on Tue, Apr 1, arriving at Samui International Airport. One-way Prices start from £467 including taxes and charges.

      • PDX07:54
        33h 56m
        2 stops
        USM07:50
        Wed, Apr 2|Portland - Koh Samui|United Airlines
        £495£1,041
        52% OFF
        52% OFF
        £1,041£495

        Choose United Airlines flights from Portland to Koh Samui. The one-way connecting flight with United Airlines departs from Portland International Airport on Wed, Apr 2, arriving at Samui International Airport. One-way Prices start from £495 including taxes and charges.

      • PDX15:25
        36h 50m
        2 stops
        USM18:15
        Thu, Apr 3|Portland - Koh Samui|Air Canada
        £568£1,041
        45% OFF
        45% OFF
        £1,041£568

        Choose Air Canada flights from Portland to Koh Samui. The one-way connecting flight with Air Canada departs from Portland International Airport on Thu, Apr 3, arriving at Samui International Airport. One-way Prices start from £568 including taxes and charges.

      • PDX10:21
        44h 49m
        2 stops
        USM21:10
        Thu, Apr 3|Portland - Koh Samui|United Airlines
        £597
        £597

        Choose United Airlines flights from Portland to Koh Samui. The one-way connecting flight with United Airlines departs from Portland International Airport on Thu, Apr 3, arriving at Samui International Airport. One-way Prices start from £597 including taxes and charges.

      • PDX07:21
        45h 14m
        2 stops
        USM18:35
        Wed, Apr 2|Portland - Koh Samui|Frontier Airlines
        £601
        £601

        Choose Frontier Airlines flights from Portland to Koh Samui. The one-way connecting flight with Frontier Airlines departs from Portland International Airport on Wed, Apr 2, arriving at Samui International Airport. One-way Prices start from £601 including taxes and charges.

      • PDX06:00
        25h 10m
        2 stops
        USM21:10
        Fri, Apr 4|Portland - Koh Samui|United Airlines
        £651
        £651

        Choose United Airlines flights from Portland to Koh Samui. The one-way connecting flight with United Airlines departs from Portland International Airport on Fri, Apr 4, arriving at Samui International Airport. One-way Prices start from £651 including taxes and charges.

      • PDX07:00
        45h 35m
        2 stops
        USM18:35
        Wed, Apr 2|Portland - Koh Samui|Hawaiian Airlines
        £657
        £657

        Choose Hawaiian Airlines flights from Portland to Koh Samui. The one-way connecting flight with Hawaiian Airlines departs from Portland International Airport on Wed, Apr 2, arriving at Samui International Airport. One-way Prices start from £657 including taxes and charges.

      • PDX07:05
        45h 30m
        2 stops
        USM18:35
        Wed, Apr 2|Portland - Koh Samui|Alaska Airlines
        £658
        £658

        Choose Alaska Airlines flights from Portland to Koh Samui. The one-way connecting flight with Alaska Airlines departs from Portland International Airport on Wed, Apr 2, arriving at Samui International Airport. One-way Prices start from £658 including taxes and charges.

      • PDX19:05
        25h 5m
        2 stops
        USM10:10
        Wed, Apr 2|Portland - Koh Samui|Air Canada
        £672
        £672

        Choose Air Canada flights from Portland to Koh Samui. The one-way connecting flight with Air Canada departs from Portland International Airport on Wed, Apr 2, arriving at Samui International Airport. One-way Prices start from £672 including taxes and charges.

      • PDX15:25
        36h 50m
        2 stops
        USM18:15
        Fri, Apr 4|Portland - Koh Samui|Air Canada
        £715
        £715

        Choose Air Canada flights from Portland to Koh Samui. The one-way connecting flight with Air Canada departs from Portland International Airport on Fri, Apr 4, arriving at Samui International Airport. One-way Prices start from £715 including taxes and charges.

      • PDX01:00 pm
        3h 5m
        Nonstop
        USM02:00 pm
        Sat, Feb 22|Portland - Koh Samui|United Airlines
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Portland to Koh Samui flight time & flight schedules

Flight info.
Departure
Arrival
Weekly Schedule

  1. UA5574

    United Airlines

    06:00

    PDX

    1.9h

    07:55

    SFO

    SMTWTFS
    Search

  2. UA029

    United Airlines

    10:25

    SFO

    17.0h

    18:25

    SIN

    SMTWTFS

  3. TR640

    Scoot

    07:00

    SIN

    2.0h

    08:00

    USM

    SMTWTFS

  4. UA2480

    United Airlines

    10:05

    PDX

    12.1h

    22:10

    SFO

    SMTWTFS
    Search

  5. UA029

    United Airlines

    10:25

    SFO

    17.0h

    18:25

    SIN

    SMTWTFS

  6. TR642

    Scoot

    10:00

    SIN

    1.8h

    10:50

    USM

    SMTWTFS

  7. UA5429

    United Airlines

    15:54

    PDX

    1.9h

    17:50

    SFO

    SMTWT-S
    Search

  8. UA001

    United Airlines

    22:40

    SFO

    18.3h

    08:00

    SIN

    SMTWTFS

  9. PG968

    Bangkok Airways

    17:20

    SIN

    1.9h

    18:15

    USM

    SMTWTFS

  10. CX7853

    Cathay Pacific

    17:30

    PDX

    2.5h

    19:58

    LAX

    SMTWTFS
    Search

  11. CX883

    Cathay Pacific

    23:15

    LAX

    16.0h

    06:15

    HKG

    SMTWTFS

  12. CX6503

    Cathay Pacific

    16:15

    HKG

    3.3h

    18:35

    USM

    SMTWTFS

  13. AS278

    Alaska Airlines

    17:30

    PDX

    2.5h

    19:58

    LAX

    SMTWTFS
    Search

  14. CX883

    Cathay Pacific

    23:15

    LAX

    16.0h

    06:15

    HKG

    SMTWTFS

  15. CX6503

    Cathay Pacific

    16:15

    HKG

    3.3h

    18:35

    USM

    SMTWTFS

  16. AS278

    Alaska Airlines

    17:30

    PDX

    2.5h

    19:58

    LAX

    SMTWTFS
    Search

  17. CX881

    Cathay Pacific

    00:20

    LAX

    16.0h

    07:20

    HKG

    SMTWTFS

  18. CX6503

    Cathay Pacific

    16:15

    HKG

    3.3h

    18:35

    USM

    SMTWTFS

  19. CX7965

    Cathay Pacific

    17:55

    PDX

    1.8h

    19:45

    SFO

    S--WTFS
    Search

  20. CX893

    Cathay Pacific

    00:35

    SFO

    15.3h

    06:55

    HKG

    SM-W-F-

  21. CX6503

    Cathay Pacific

    16:15

    HKG

    3.3h

    18:35

    USM

    SMTWTFS

  22. AS1295

    Alaska Airlines

    17:55

    PDX

    1.8h

    19:45

    SFO

    SMTWTFS
    Search

  23. CX893

    Cathay Pacific

    00:35

    SFO

    15.3h

    06:55

    HKG

    SM-W-F-

  24. CX6503

    Cathay Pacific

    16:15

    HKG

    3.3h

    18:35

    USM

    SMTWTFS

  25. AC8655

    Air Canada

    19:40

    PDX

    1.3h

    20:56

    YVR

    S-TWTFS
    Search

  26. AC065

    Air Canada

    22:45

    YVR

    16.5h

    06:15

    BKK

    SMTWTFS

  27. PG125

    Bangkok Airways

    07:00

    BKK

    1.2h

    08:10

    USM

    SMTWTFS

  28. UA436

    United Airlines

    19:46

    PDX

    1.9h

    21:41

    SFO

    SMTWTFS
    Search

  29. UA877

    United Airlines

    23:10

    SFO

    16.6h

    06:45

    HKG

    SMTWTFS

  30. PG806

    Bangkok Airways

    17:05

    HKG

    3.5h

    19:35

    USM

    SMTWTFS
Find more flights and airlines

Find the best time to fly from Portland to Koh Samui

Explore the best time to buy affordable tickets to Koh Samui with our price trend chart, which predicts how flight prices will change in the coming weeks from previous data.

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

FAQ

  • 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 date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much are flights from Portland (PDX) to Koh Samui (USM) cost?

    According to Trip.com's data, the lowest price is around £1,542.

  • What is the transportation method from the main airport to downtown in Koh Samui?

    • The distance from Samui International Airport to downtown is about 3km, by taxi about 20 minutes.

  • How many airports in Koh Samui (USM)?

    There are 1 airport(s) in Koh Samui (USM): Samui International Airport.

How to find a cheap flight from Portland to Koh Samui

If you leave it until the last minute and forget to check some of the key information when booking tickets, prices can often end up skyrocketing. Below, you can find our top tips for getting the best value flights – from changing dates to chasing deals, there are plenty ways to keep your next trip affordable.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Flight Information from Portland to Koh Samui

Off-season travel monthJanuary
Peak season for travelDecember
Flight distance12,552.9km
Popular airlineAlaska Airlines

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