S$221 Cheap Flights from Sihanoukville to Singapore

View S$221 flight on Wed, 4 Feb, 2026Opens in a new window

Popular airlines from Sihanoukville (KOS) to Singapore Changi Airport (SIN)

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Cheap Flights from Sihanoukville to Singapore (KOS-SIN)

Prices were available within the past 7 days and start at S$221 for one-way flights and S$432 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

AirAsia
Mon, 26 Jan - Fri, 30 Jan
KOS
Sihanoukville
SIN
Singapore
S$432 Return, found 3 days ago
S$432
Return
found 3 days ago
Select AirAsia flight, departing Mon, 26 Jan from Sihanoukville to Singapore, returning Fri, 30 Jan, priced at S$432 found 3 days ago
AirAsia
Mon, 26 Jan - Fri, 30 Jan
KOS
Sihanoukville
SIN
Singapore
S$438 Return, found 3 days ago
S$438
Return
found 3 days ago
Select AirAsia flight, departing Mon, 26 Jan from Sihanoukville to Singapore, returning Fri, 30 Jan, priced at S$438 found 3 days ago
AirAsia
Mon, 26 Jan - Fri, 30 Jan
KOS
Sihanoukville
SIN
Singapore
S$440 Return, found 3 days ago
S$440
Return
found 3 days ago
Select AirAsia flight, departing Mon, 26 Jan from Sihanoukville to Singapore, returning Fri, 30 Jan, priced at S$440 found 3 days ago
AirAsia
Mon, 26 Jan - Fri, 30 Jan
KOS
Sihanoukville
SIN
Singapore
S$440 Return, found 3 days ago
S$440
Return
found 3 days ago
Select AirAsia flight, departing Mon, 26 Jan from Sihanoukville to Singapore, returning Fri, 30 Jan, priced at S$440 found 3 days ago
AirAsia
Mon, 26 Jan - Fri, 30 Jan
KOS
Sihanoukville
SIN
Singapore
S$444 Return, found 3 days ago
S$444
Return
found 3 days ago
Select AirAsia flight, departing Mon, 26 Jan from Sihanoukville to Singapore, returning Fri, 30 Jan, priced at S$444 found 3 days ago
AirAsia
Mon, 26 Jan - Fri, 30 Jan
KOS
Sihanoukville
SIN
Singapore
S$447 Return, found 3 days ago
S$447
Return
found 3 days ago
Select AirAsia flight, departing Mon, 26 Jan from Sihanoukville to Singapore, returning Fri, 30 Jan, priced at S$447 found 3 days ago
AirAsia
Mon, 26 Jan - Fri, 30 Jan
KOS
Sihanoukville
SIN
Singapore
S$449 Return, found 3 days ago
S$449
Return
found 3 days ago
Select AirAsia flight, departing Mon, 26 Jan from Sihanoukville to Singapore, returning Fri, 30 Jan, priced at S$449 found 3 days ago
AirAsia
Mon, 26 Jan - Fri, 30 Jan
KOS
Sihanoukville
SIN
Singapore
S$452 Return, found 3 days ago
S$452
Return
found 3 days ago
Select AirAsia flight, departing Mon, 26 Jan from Sihanoukville to Singapore, returning Fri, 30 Jan, priced at S$452 found 3 days ago
Air Cambodia
Thu, 19 Mar - Mon, 23 Mar
KOS
Sihanoukville
SIN
Singapore
S$600 Return, found 1 day ago
S$600
Return
found 1 day ago
Select Air Cambodia flight, departing Thu, 19 Mar from Sihanoukville to Singapore, returning Mon, 23 Mar, priced at S$600 found 1 day ago
AirAsia Cambodia
Thu, 19 Mar - Mon, 23 Mar
KOS
Sihanoukville
SIN
Singapore
S$640 Return, found 1 day ago
S$640
Return
found 1 day ago
Select AirAsia Cambodia flight, departing Thu, 19 Mar from Sihanoukville to Singapore, returning Mon, 23 Mar, priced at S$640 found 1 day ago
Sihanoukville to Singapore route information
Origin airport
Sihanoukville
Destination airport
Changi
Return price
S$432
Distance
1020 km

Perfect flights from Sihanoukville to Singapore

Your Journey from Sihanoukville to Singapore

Start your unforgettable journey with Expedia. Our broad selection of flights from Sihanoukville to Singapore caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
 

Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including AirAsia, Air Cambodia, AirAsia Cambodia. Our selection of flights from Sihanoukville to Changi caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 20 airlines, you're bound to find the perfect flight.
 

Maximizing Value with Sihanoukville to Singapore Flights

Experience the joy of finding cheap flights from Sihanoukville to Changi that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$221 and roundtrip prices from S$432*.
 

Pre-Flight Essentials

Ensure a smooth journey from Sihanoukville to Singapore with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant Singapore

Picture yourself stepping off the plane in Singapore and immersing yourself in the unique atmosphere of . From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your Sihanoukville to Singapore Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from Sihanoukville to Singapore.
 

Beyond the Flight – Exploring Singapore

With Expedia, your adventure extends beyond the flight. Explore Singapore at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from Sihanoukville to Singapore with Confidence

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from Sihanoukville to Singapore with confidence. Book your travel arrangements with Expedia today.
 
*Note: Prices may vary based on availability and are subject to change.

Frequently asked questions

How much is a flight from Sihanoukville Airport (KOS) to Changi Airport (SIN)?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price quoted for a round-trip flight between KOS and Changi Airport (SIN) was S$432. Fares this cheap don't hang around, so make sure you book yours today. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from KOS to Changi Airport?
The majority of flights can be cancelled online, but each airline has different terms and conditions. If you do have to cancel your flight, visit our Customer Service Portal and follow the instructions.
How do I find cheap flights from Sihanouk Intl. Airport to Singapore 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 KOS to Changi Airport (SIN) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Sihanoukville Airport (KOS) to SIN?
With a flight distance of 1,050 kilometres, it's just a hop from KOS to Changi Airport. It might be a quick journey, but it's still worth bringing a good book to read.
Which airlines fly direct from Sihanoukville Airport (KOS) to Singapore Airport?
At the moment, no airlines offer direct flights from Sihanoukville Airport (KOS) to Singapore Airport. You'll have to book a flight with at least one stop. To score the best price and connections, lock in your airfare well in advance.
Are Sihanouk Intl. Airport to Changi Airport (SIN) flight tickets cheaper when they're purchased at the last minute?
Last-minute bookings from Sihanouk Intl. Airport to Changi Airport can be hit-or-miss. It is possible to find a bargain, but you could also completely miss out! If you'd rather start your trip planning early on, Expedia compares flight deals up to 12 months in advance. Just keep in mind that not all airlines issue their prices that far in advance. Our top tip? Check back often as prices are updated frequently.

Explore a world of travel with Expedia

*Available to Expedia members.