S$293 Cheap Flights from Sihanoukville to Singapore

View S$293 flight on Sun, 30 Nov, 2025Opens 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$293 for one-way flights and S$542 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

AirAsia Cambodia
Tue, 23 Dec - Mon, 29 Dec
KOS
Sihanoukville
SIN
Singapore
S$542 Return, found 23 hours ago
S$542
Return
found 23 hours ago
Select AirAsia Cambodia flight, departing Tue, 23 Dec from Sihanoukville to Singapore, returning Mon, 29 Dec, priced at S$542 found 23 hours ago
AirAsia Cambodia
Tue, 23 Dec - Mon, 29 Dec
KOS
Sihanoukville
SIN
Singapore
S$545 Return, found 23 hours ago
S$545
Return
found 23 hours ago
Select AirAsia Cambodia flight, departing Tue, 23 Dec from Sihanoukville to Singapore, returning Mon, 29 Dec, priced at S$545 found 23 hours ago
AirAsia Cambodia
Tue, 23 Dec - Mon, 29 Dec
KOS
Sihanoukville
SIN
Singapore
S$554 Return, found 23 hours ago
S$554
Return
found 23 hours ago
Select AirAsia Cambodia flight, departing Tue, 23 Dec from Sihanoukville to Singapore, returning Mon, 29 Dec, priced at S$554 found 23 hours ago
AirAsia Cambodia
Tue, 23 Dec - Mon, 29 Dec
KOS
Sihanoukville
SIN
Singapore
S$560 Return, found 23 hours ago
S$560
Return
found 23 hours ago
Select AirAsia Cambodia flight, departing Tue, 23 Dec from Sihanoukville to Singapore, returning Mon, 29 Dec, priced at S$560 found 23 hours ago
AirAsia Cambodia
Tue, 23 Dec - Mon, 29 Dec
KOS
Sihanoukville
SIN
Singapore
S$563 Return, found 23 hours ago
S$563
Return
found 23 hours ago
Select AirAsia Cambodia flight, departing Tue, 23 Dec from Sihanoukville to Singapore, returning Mon, 29 Dec, priced at S$563 found 23 hours ago
AirAsia Cambodia
Tue, 23 Dec - Mon, 29 Dec
KOS
Sihanoukville
SIN
Singapore
S$572 Return, found 23 hours ago
S$572
Return
found 23 hours ago
Select AirAsia Cambodia flight, departing Tue, 23 Dec from Sihanoukville to Singapore, returning Mon, 29 Dec, priced at S$572 found 23 hours ago
AirAsia Cambodia
Tue, 23 Dec - Mon, 29 Dec
KOS
Sihanoukville
SIN
Singapore
S$576 Return, found 23 hours ago
S$576
Return
found 23 hours ago
Select AirAsia Cambodia flight, departing Tue, 23 Dec from Sihanoukville to Singapore, returning Mon, 29 Dec, priced at S$576 found 23 hours ago
AirAsia Cambodia
Tue, 23 Dec - Mon, 29 Dec
KOS
Sihanoukville
SIN
Singapore
S$579 Return, found 23 hours ago
S$579
Return
found 23 hours ago
Select AirAsia Cambodia flight, departing Tue, 23 Dec from Sihanoukville to Singapore, returning Mon, 29 Dec, priced at S$579 found 23 hours ago
AirAsia Cambodia
Tue, 23 Dec - Mon, 29 Dec
KOS
Sihanoukville
SIN
Singapore
S$588 Return, found 23 hours ago
S$588
Return
found 23 hours ago
Select AirAsia Cambodia flight, departing Tue, 23 Dec from Sihanoukville to Singapore, returning Mon, 29 Dec, priced at S$588 found 23 hours ago
Air Cambodia
Thu, 15 Jan - Wed, 21 Jan
KOS
Sihanoukville
SIN
Singapore
S$605 Return, found 4 hours ago
S$605
Return
found 4 hours ago
Select Air Cambodia flight, departing Thu, 15 Jan from Sihanoukville to Singapore, returning Wed, 21 Jan, priced at S$605 found 4 hours ago

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Sihanoukville to Singapore route information
Origin airport
Sihanoukville
Destination airport
Changi
Return price
S$542
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$293 and roundtrip prices from S$542*.
 

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$542. 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.