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Cheap flights from Ko Samui to Phnom Penh from ฿6,232

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/8. Fares are subject to change and may not be available on all flights or dates of travel.
USM — PNH
20 May — 27 May1
1 adult

Find flight deals from Ko Samui to Phnom Penh

Cheapest flights from Ko Samui to Phnom Penh
Explore the most affordable flight options available from Ko Samui to Phnom Penh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 May 2025.

Sat 17/506:55USM - PNH
1 stop9h 25mMultiple Airlines
Tue 20/511:05PNH - USM
1 stop6h 00mMultiple Airlines
Deal found 14/5฿13,131
Sat 17/519:10USM - PNH
3 stops17h 50mVietnam Airlines
Tue 20/515:00PNH - USM
2 stops22h 45mVietnam Airlines
Deal found 14/5฿32,993
Sat 17/513:50USM - PNH
2 stops20h 10mMalaysia Airlines
Mon 19/511:10PNH - USM
2 stops20h 25mMalaysia Airlines
Deal found 14/5฿72,351

Cheapflights Fare Finder

Customise your flight search to find flights from Ko Samui to Phnom Penh that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 17,341 searches. Data last updated 15 May 2025.
Use the filters below to find and compare flights from Ko Samui to Phnom Penh that are best for you.

Fly from

Ko Samui

Fly to

Phnom Penh

Route

Depart

Return

Price

Ko SamuiPhnom Penh

USM - PNH

USMPNH

Ko Samui

Thu 14/8

12:30-18:15

2 stops29h 45m

฿6,232

Ko SamuiPhnom Penh

USM - PNH

USMPNH

Ko Samui

Thu 14/8

17:25-13:00

3 stops19h 35m

฿22,762

Flights are sorted by cheapest return flights first.

Deals found on 14/5

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

Have a flexible travel schedule? Discover the best time to fly to Phnom Penh from Ko Samui with our price prediction graph.
Estimated return 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.

Cheapflights Insights

Everything you need to know about your flight from Ko Samui to Phnom Penh

Rainfall in Phnom Penh by month

Plan your trip to Phnom Penh by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Phnom Penh ranges from 0.0 - 250.0 inches per month. October is typically the wettest month, when rainfall can reach 250.0 mm. January is typically the driest time to visit Phnom Penh when rainfall is around 0.0 mm.

Temperature in Phnom Penh by month

Plan your trip to Phnom Penh by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Phnom Penh, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 29.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 25.0 C).

Reviews of airlines servicing Phnom Penh

Get insights into the airlines that provide service to Phnom Penh. 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 Phnom Penh. Reviews last updated 15 May 2025.
Vietnam Airlines
7.6
Good
196 reviews
Check prices

Entertainment

6.2

Comfort

7.5

Crew

8.1

Boarding

7.5

Food

6.8

Overall

7.6

Reviews

1 / 13
10.0
Excellent

Hamish,May 2025

SGN - MEL

Great experience with airline and quality of aircraft and crew service. Traveled in premium economy. Good comfy seats with excellent recline so could sleep fine.
Vietnam Airlines
7.6
Good
196 reviews
Vietnam Airlines
7.6
Good
196 reviews
Check prices

Entertainment

6.2

Comfort

7.5

Crew

8.1

Boarding

7.5

Food

6.8

Overall

7.6

Reviews

1 / 13
10.0
Excellent

Hamish,May 2025

SGN - MEL

Great experience with airline and quality of aircraft and crew service. Traveled in premium economy. Good comfy seats with excellent recline so could sleep fine.

Related info for your journey

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

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

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

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

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

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

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

  • What is the cheapest month to book a flight from Ko Samui to Phnom Penh?

    Currently, May is the cheapest month in which you can book a flight from Ko Samui to Phnom Penh (average of ฿109). Flying from Ko Samui to Phnom Penh in October is currently the most expensive (average of ฿145). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Ko Samui to Phnom Penh

See prices for flight routes from nearby airports that may be better suited for you.
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