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Flights from Phoenix to Koh Samui

Find cheap airlines flights from Phoenix to Koh Samui

Choose from 1 carriers that fly from Phoenix to Koh Samui, including Air Canada, Enjoy the cheapest tickets on this route with United Airlines.
Air Canada logo Air Canada

Find flight deals from Phoenix to Koh Samui for the next 3 months. Book one way flights from £546 or round trip flights from £784.

      • PHX 4:00 PM
        30h 35m
        2 stops
        USM 12:35 PM
        Phoenix - Koh Samui | Fri, Jan 16 | China Airlines
        USM 7:55 AM
        19h 40m
        2 stops
        PHX 1:35 PM
        Koh Samui - Phoenix | Fri, Jan 23 | Bangkok Airways
        £784 £1,404
        44% OFF
        44% OFF
        £1,404 £784
      • PHX 4:00 PM
        30h 35m
        2 stops
        USM 12:35 PM
        Phoenix - Koh Samui | Wed, Jan 14 | China Airlines
        USM 7:55 AM
        19h 40m
        2 stops
        PHX 1:35 PM
        Koh Samui - Phoenix | Wed, Jan 21 | Bangkok Airways
        £784 £1,404
        44% OFF
        44% OFF
        £1,404 £784
      • PHX 4:00 PM
        34h 40m
        2 stops
        USM 4:40 PM
        Phoenix - Koh Samui | Sun, Jan 18 | China Airlines
        USM 7:55 AM
        19h 40m
        2 stops
        PHX 1:35 PM
        Koh Samui - Phoenix | Sun, Jan 25 | Bangkok Airways
        £796 £1,404
        43% OFF
        43% OFF
        £1,404 £796
      • PHX 11:35 AM
        42h 55m
        2 stops
        USM 8:30 PM
        Phoenix - Koh Samui | Fri, Jan 16 | United Airlines
        USM 7:15 AM
        41h 39m
        2 stops
        PHX 10:54 AM
        Koh Samui - Phoenix | Fri, Jan 23 | Bangkok Airways
        £895
        36% OFF
        £1,404 £895
      • PHX 8:10 AM
        45h 25m
        2 stops
        USM 7:35 PM
        Phoenix - Koh Samui | Sat, Jan 10 | United Airlines
        USM 11:40 AM
        26h 17m
        2 stops
        PHX 11:57 PM
        Koh Samui - Phoenix | Sat, Jan 17 | Bangkok Airways
        £923
        34% OFF
        £1,404 £923
      • PHX 10:45 PM
        26h 50m
        2 stops
        USM 3:35 PM
        Phoenix - Koh Samui | Thu, Jan 22 | STARLUX Airlines
        USM 7:55 AM
        23h 45m
        2 stops
        PHX 5:40 PM
        Koh Samui - Phoenix | Thu, Jan 29 | Bangkok Airways
        £940
        33% OFF
        £1,404 £940
      • PHX 10:45 PM
        26h 50m
        2 stops
        USM 3:35 PM
        Phoenix - Koh Samui | Sun, Jan 18 | STARLUX Airlines
        USM 10:00 AM
        21h 40m
        2 stops
        PHX 5:40 PM
        Koh Samui - Phoenix | Sun, Jan 25 | Bangkok Airways
        £955
        32% OFF
        £1,404 £955
      • PHX 4:36 PM
        62h 29m
        2 stops
        USM 9:05 PM
        Phoenix - Koh Samui | Sun, Jan 18 | United Airlines
        USM 4:25 PM
        45h 32m
        2 stops
        PHX 11:57 PM
        Koh Samui - Phoenix | Sun, Jan 25 | Bangkok Airways
        £1,057
        25% OFF
        £1,404 £1,057
      • PHX 8:25 AM
        45h 10m
        2 stops
        USM 7:35 PM
        Phoenix - Koh Samui | Thu, Jan 22 | Cathay Pacific
        USM 11:40 AM
        23h 22m
        2 stops
        PHX 9:02 PM
        Koh Samui - Phoenix | Thu, Jan 29 | Cathay Pacific
        £1,126
        20% OFF
        £1,404 £1,126
      • PHX 4:36 PM
        30h 29m
        2 stops
        USM 1:05 PM
        Phoenix - Koh Samui | Thu, Jan 22 | United Airlines
        USM 11:40 AM
        26h 17m
        2 stops
        PHX 11:57 PM
        Koh Samui - Phoenix | Thu, Jan 29 | Bangkok Airways
        £1,249
        11% OFF
        £1,404 £1,249
      • PHX 1:00 PM
        17h 25m
        1 stop
        USM Invalid Date
        Phoenix - Koh Samui | Fri, Dec 12 | Normal Airline
        USM 3:00 PM
        6h
        Nonstop
        PHX 4:00 PM
        Koh Samui - Phoenix | Sun, Dec 14 | Normal Airline
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Displayed flight fares from Phoenix to Koh Samui are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Flight Info | Phoenix to Koh Samui

The distance between Phoenix and Koh Samui is approximately 14,153.35 km. Based on Trip.com's data travel demand peaks in December. The off-season for travel is October.

Cheapest one-way flight price£546
Cheapest round-trip ticket price£784
Off-season for travelOctober
Peak season for travelDecember
Flight distance14,153.35 km
Popular airlineAir Canada

When is the cheapest time to fly from Phoenix to Koh Samui?

The cheapest time for Phoenix to Koh Samui flights: Dec 21 to Dec 28 — one way flight prices from £545.

Cheapest flights
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  • 714
  • 1421
  • 2128

  • Jan

    284
  • 411
  • 1118
  • 1825

  • Feb

    251
  • 18
  • 815
  • 1522

  • Mar

    221
Displayed fare trends are based on Trip.com's aggregated average of the lowest flight prices from Phoenix to Koh Samui, calculated over the upcoming 10 weeks.

Frequently Asked Questions

  • What are the cheapest flights from Phoenix to Koh Samui (PHX-USM)?

    Based on Trip.com data, United Airlines offers one-way fares as low as £546 on Cheapest nonstop routes (e.g. PHX to USM on Sun, Dec 28), while China Airlines offers Cheapest nonstop round-trips from £784 departing on Fri, Jan 16 and returning on Fri, Jan 23.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Phoenix to Koh Samui is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from Phoenix to Koh Samui, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Sun, Dec 28, with one-way flights priced at just £546.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Koh Samui travel is around December.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Phoenix to Koh Samui is October, when demand for travel is lower.
  • The time difference between Koh Samui and Phoenix is 14h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

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