USM - KTI

฿6,576 Find Cheap Flights from Ko Samui to Phnom Penh – Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest return flight
฿10,587
Typical prices: ฿13,743-฿17,122
Multiple Airlines
Sun 25/11Thu 29/11
USM - KTI • 1 stop
Cheapest one-way flight
฿6,576
Typical prices: ฿8,188-฿9,330
Multiple Airlines
Fri 21/9
USM - KTI • 1 stop
Direct flights
Not available
There are currently no direct flights between Ko Samui and Phnom Penh. You'll need to take a connecting flight to reach the destination.
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Flight Deals

Cheap Flights from Ko Samui to Phnom Penh (USM-KTI)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Ko Samui to Phnom Penh

Wed 25 Nov - Sun 29 Nov
Multiple Airlines Logo
07:00 - 19:00USM  Ko Samui-KTI Phnom Penh Techo Intl
12h 00m1 stop Bangkok Suvarnabhumi
Multiple Airlines Logo
19:55 - 17:00KTI  Phnom Penh Techo Intl-USM Ko Samui
21h 05m1 stop Bangkok Suvarnabhumi
฿10,587Multiple Airlines
Wed 25 Nov - Sun 29 Nov
Multiple Airlines Logo
07:00 - 18:55USM  Ko Samui-KTI Phnom Penh Techo Intl
11h 55m1 stop Bangkok Suvarnabhumi
Multiple Airlines Logo
13:50 - 07:10KTI  Phnom Penh Techo Intl-USM Ko Samui
17h 20m2 stops Ho Chi Minh City Bangkok Suvarnabhumi
฿18,742Multiple Airlines
Wed 25 Nov - Sun 29 Nov
Multiple Airlines Logo
21:10 - 17:30USM  Ko Samui-KTI Phnom Penh Techo Intl
20h 20m2 stops Bangkok Suvarnabhumi Kuala Lumpur Intl
Multiple Airlines Logo
11:10 - 20:25KTI  Phnom Penh Techo Intl-USM Ko Samui
9h 15m2 stops Kuala Lumpur Intl Bangkok Suvarnabhumi
฿21,076Multiple Airlines
Booking Insights

Price, demand, and travel trends for Ko Samui to Phnom Penh flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights from Ko Samui to Phnom Penh with more confidence.

What is the cheapest stopover airport when flying from Ko Samui to Phnom Penh?

Flights via Bangkok Suvarnabhumi (BKK) offer the most affordable fares, with an average return price of ฿15,414. Based on KAYAK data over the past 3 months.

When flying from Ko Samui to Phnom Penh, which airport offers the shortest stopover?

Bangkok Suvarnabhumi (BKK) had the shortest average connection time for Ko Samui to Phnom Penh stopovers at 264 minutes over the past 3 months.

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Key details for Ko Samui to Phnom Penh flights

Cheapest flight

฿6,576
Flights from Ko Samui to Phnom Penh

When to book flights from Ko Samui to Phnom Penh

Are your dates flexible? Find out the best times to travel from Ko Samui to Phnom Penh based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your Ko Samui to Phnom Penh flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • Which airports can I use when flying from Ko Samui to Phnom Penh?

    Flights from Ko Samui to Phnom Penh usually depart from Ko Samui (USM) and arrive at Phnom Penh Techo Intl (KTI).

  • Which airports do connecting flights from Ko Samui to Phnom Penh pass through?

    Most connecting flights from Ko Samui to Phnom Penh pass through Bangkok Suvarnabhumi (BKK), which handles 100% of one-stop traffic on this route. Other stopover airports each see under 5%.

  • Can I save money by using flexible dates for flights from Ko Samui to Phnom Penh?

    Yes. Being flexible with your travel dates can save you up to 21% on the Ko Samui to Phnom Penh route. Thursday is the cheapest departure day at ฿13,612 return on average, while Friday is the most expensive at ฿17,131, a difference of ฿3,518. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How long is a flight from Ko Samui to Phnom Penh?

    A direct flight from Ko Samui to Phnom Penh takes 0h 00m, covering 915 km.

  • Do I need a passport to fly from Ko Samui to Phnom Penh?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • Have flight prices from Ko Samui to Phnom Penh changed much recently?

    Yes. Based on fares seen in the past 5 days, return prices on this route varied from about ฿10,587 to ฿21,076. That means the highest observed fare was about 99% higher than the lowest one.

  • How are flight prices from Ko Samui to Phnom Penh looking right now?

    One-way fares from Ko Samui to Phnom Penh are currently lower than usual. Average one-way flight prices are about ฿7,339, which is 16% below the typical average for this route.

Your guide to booking Ko Samui to Phnom Penh flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Thursday departure instead of Friday. On this route, Thursday flights average ฿13,612 – about ฿3,518 less than Friday (21% savings) based on the last 12 months.

More options for your flight from Ko Samui to Phnom Penh

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