₩301,300 Cheap Flights from Seoul (ICN) to Sihanoukville (KOS)

View ₩301,300 flight on Tue, Mar 24, 2026Opens in a new window

Popular airlines from Incheon Intl. Airport (ICN) to Sihanoukville (KOS)

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 40% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Seoul to Sihanoukville (ICN-KOS)

Prices were available within the past 7 days and start at ₩301,300 for one-way flights and ₩467,100 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Vietnam Airlines
Sat, Mar 21 - Fri, Mar 27
ICN
Seoul
KOS
Sihanoukville
₩467,100 Roundtrip, found 5 days ago
₩467,100
Roundtrip
found 5 days ago
Select Vietnam Airlines flight, departing Sat, Mar 21 from Seoul to Sihanoukville, returning Fri, Mar 27, priced at ₩467,100 found 5 days ago
Vietnam Airlines
Tue, Mar 24 - Fri, Mar 27
ICN
Seoul
KOS
Sihanoukville
₩497,100 Roundtrip, found 5 days ago
₩497,100
Roundtrip
found 5 days ago
Select Vietnam Airlines flight, departing Tue, Mar 24 from Seoul to Sihanoukville, returning Fri, Mar 27, priced at ₩497,100 found 5 days ago
Vietnam Airlines
Thu, Apr 23 - Mon, Apr 27
ICN
Seoul
KOS
Sihanoukville
₩518,500 Roundtrip, found 5 days ago
₩518,500
Roundtrip
found 5 days ago
Select Vietnam Airlines flight, departing Thu, Apr 23 from Seoul to Sihanoukville, returning Mon, Apr 27, priced at ₩518,500 found 5 days ago
Vietnam Airlines
Sat, Mar 21 - Sun, Mar 29
ICN
Seoul
KOS
Sihanoukville
₩527,800 Roundtrip, found 5 days ago
₩527,800
Roundtrip
found 5 days ago
Select Vietnam Airlines flight, departing Sat, Mar 21 from Seoul to Sihanoukville, returning Sun, Mar 29, priced at ₩527,800 found 5 days ago
Vietnam Airlines
Tue, Apr 21 - Fri, Apr 24
ICN
Seoul
KOS
Sihanoukville
₩543,500 Roundtrip, found 5 days ago
₩543,500
Roundtrip
found 5 days ago
Select Vietnam Airlines flight, departing Tue, Apr 21 from Seoul to Sihanoukville, returning Fri, Apr 24, priced at ₩543,500 found 5 days ago
Vietnam Airlines
Tue, Mar 24 - Sun, Mar 29
ICN
Seoul
KOS
Sihanoukville
₩557,800 Roundtrip, found 5 days ago
₩557,800
Roundtrip
found 5 days ago
Select Vietnam Airlines flight, departing Tue, Mar 24 from Seoul to Sihanoukville, returning Sun, Mar 29, priced at ₩557,800 found 5 days ago
Vietnam Airlines
Sat, Mar 21 - Mon, Mar 30
ICN
Seoul
KOS
Sihanoukville
₩566,700 Roundtrip, found 5 days ago
₩566,700
Roundtrip
found 5 days ago
Select Vietnam Airlines flight, departing Sat, Mar 21 from Seoul to Sihanoukville, returning Mon, Mar 30, priced at ₩566,700 found 5 days ago
Vietnam Airlines
Tue, Apr 21 - Fri, Apr 24
ICN
Seoul
KOS
Sihanoukville
₩568,500 Roundtrip, found 5 days ago
₩568,500
Roundtrip
found 5 days ago
Select Vietnam Airlines flight, departing Tue, Apr 21 from Seoul to Sihanoukville, returning Fri, Apr 24, priced at ₩568,500 found 5 days ago
Vietnam Airlines
Sat, Apr 11 - Tue, Apr 21
ICN
Seoul
KOS
Sihanoukville
₩582,400 Roundtrip, found 5 days ago
₩582,400
Roundtrip
found 5 days ago
Select Vietnam Airlines flight, departing Sat, Apr 11 from Seoul to Sihanoukville, returning Tue, Apr 21, priced at ₩582,400 found 5 days ago
Vietnam Airlines
Tue, Mar 24 - Mon, Mar 30
ICN
Seoul
KOS
Sihanoukville
₩596,700 Roundtrip, found 5 days ago
₩596,700
Roundtrip
found 5 days ago
Select Vietnam Airlines flight, departing Tue, Mar 24 from Seoul to Sihanoukville, returning Mon, Mar 30, priced at ₩596,700 found 5 days ago
Flights from Seoul (ICN) to Sihanoukville (KOS)
Origin airport
Incheon Intl.
Destination airport
Sihanoukville
Roundtrip price
₩467,100
Distance
3736 km

Incheon to Prey Nob Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from Incheon to Prey Nob will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring Prey Nob.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at Expedia.com, we’ll pair you up with ICN to KOS flights that won’t make your bank account wince. Ready to temporarily leave behind Incheon for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to KOS with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.

Frequently asked questions

How much is a flight from ICN to Sihanouk Intl. Airport?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price listed for a round-trip journey from Incheon Intl. Airport (ICN) to KOS was ₩467,100. Cheap fares don't hang around forever, so make sure you book yours ASAP. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Seoul–Incheon Intl. Airport to KOS?
The majority of flights can be canceled online, but every air carrier has different terms and conditions. If you do need to cancel your flight, go to our Customer Service Portal and follow the instructions.
How do I find cheap flights from Incheon Airport to Sihanouk Intl. Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for ICN to Sihanouk Intl. Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from ICN to KOS?
Around 3,800 kilometers separates South Korea and Preah Sihanouk, so pack something to help you fill in a few hours. That thrilling novel you haven't had time to start will do the trick.
Which airlines fly direct from ICN to Sihanoukville Airport (KOS)?
If you want to travel straight from Seoul–Incheon Intl. Airport to KOS, you'll need to book a flight with one or more stops. Unfortunately, there are no airlines that fly directly between these airports.
Are ICN to KOS flight tickets cheaper when they're purchased at the last minute?
Tickets from ICN to Sihanouk Intl. Airport are available up to a year before departure on Expedia. And although you may occasionally score fantastic last-minute deals, it's not something you should bank on. Also, booking your flights in advance means you'll have more choices — and you can avoid ending up with the dreaded middle seat! We regularly update our fares to bring you the best bargains, so keep checking in for all the latest specials.
*Available to Expedia members.