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Ko Samui

Cheap flights from Phnom Penh (PNH) to Ko Samui (USM)

PNH — USM
nov. 15 — nov. 221
sáb. 11/15
sáb. 11/22
1 adult, Economy
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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

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3. Compare prices and book

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Cheap flight deals from Phnom Penh to Ko Samui

Discover tips and strategies to find the most affordable flight options for your journey from Phnom Penh (PNH) to Ko Samui (USM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated octubre 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

May

Cheapest in

November

Average price

$464
Provider with most accurate pricing for Phnom Penh Pochentong-Ko Samui flight deals.
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Provider most trusted by Cheapflights users for Phnom Penh Pochentong-Ko Samui flights.
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Highest demand for flights based on searches. 7% potential increase in price ($36 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Compare providers for flights from Phnom Penh to Ko Samui

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Phnom Penh to Ko Samui in October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Phnom Penh-Ko Samui flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Phnom Penh-Ko Samui flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Phnom Penh-Ko Samui flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Phnom Penh-Ko Samui flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Phnom Penh-Ko Samui flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Phnom Penh to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui from Phnom Penh with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing Ko Samui

Get insights into the airlines that provide service to Ko Samui. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ko Samui. Reviews last updated octubre 16, 2025.
Read through reviews of airlines operating flights from Phnom Penh to Ko Samui, such as Bangkok Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Bangkok Airways
8.0
Very good
114 reviews

Crew

8.5

Boarding

8.0

Entertainment

6.1

Overall

8.0

Food

7.2

Comfort

7.9

Reviews

1 / 7
10.0
Excellent

Douglas,May 2025

USM - HKG

Flight was as expected: up and down at the right time and location without drama. Kayak needs to modify this survey to allow for “N/A.” For example, we didn’t use the entertainment system but are forced to rate it. In this case, the results are skewed and may lead to incorrect assumptions.
Bangkok Airways
8.0
Very good
114 reviews
Bangkok Airways
8.0
Very good
114 reviews

Crew

8.5

Boarding

8.0

Entertainment

6.1

Overall

8.0

Food

7.2

Comfort

7.9

Reviews

1 / 7
10.0
Excellent

Douglas,May 2025

USM - HKG

Flight was as expected: up and down at the right time and location without drama. Kayak needs to modify this survey to allow for “N/A.” For example, we didn’t use the entertainment system but are forced to rate it. In this case, the results are skewed and may lead to incorrect assumptions.

Related info for your journey

Find useful and relevant information for your journey from Phnom Penh to Ko Samui. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What is the cheapest airline to fly from Phnom Penh to Ko Samui round-trip?

    Flying on Bangkok Airways is currently your cheapest option to Ko Samui, with prices starting at $429. Users have found that Bangkok Airways is 9% cheaper than the other options available to this destination.

  • Can I find deals for flights from Phnom Penh to Ko Samui that include hotel bookings?

    Yes. In addition to deals on Phnom Penh to Ko Samui flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Phnom Penh to Ko Samui?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Phnom Penh to Ko Samui.

  • Can I find deals for business class flights from Phnom Penh to Ko Samui?

    Yes. Cheapflights offers flight deals from Phnom Penh to Ko Samui by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Ko Samui?

Book flights to Ko Samui if you plan to visit one of these locations
Ko Tao
Ko Pha Ngan

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Phnom Penh to Ko Samui

See prices for flight routes from nearby airports that may be better suited for you.
Phnom Penh to Suvarnabhumi flights
Phnom Penh to Don Mueang Intl flights
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Phnom Penh to Chiang Mai flights

Top airline flying from Phnom Penh to Ko Samui

Discover the top airline that operate flights from Phnom Penh to Ko Samui. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated octubre 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Bangkok AirwaysCheapest$429Average$507FlexibilityNo cancel feeOn-time74%

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