$122 Cheap Flights from Samui Intl. Airport (USM) to Singapore (SIN)

View $122 flight on Sun, Jun 22, 2025Opens in a new window

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Find available prices by choosing your travel dates.

Cheap Flights from Samui Intl. Airport to Singapore (USM-SIN)

Prices were available within the past 7 days and start at $122 for one-way flights and $273 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scoot
Tue, Jun 24 - Sat, Jun 28
USM
Koh Samui
SIN
Singapore
$273 Roundtrip, found 1 day ago
$273
Roundtrip
found 1 day ago
Select Scoot flight, departing Tue, Jun 24 from Koh Samui to Singapore, returning Sat, Jun 28, priced at $273 found 1 day ago
Scoot
Thu, May 1 - Sun, May 4
USM
Koh Samui
SIN
Singapore
$274 Roundtrip, found 15 hours ago
$274
Roundtrip
found 15 hours ago
Select Scoot flight, departing Thu, May 1 from Koh Samui to Singapore, returning Sun, May 4, priced at $274 found 15 hours ago
Scoot
Thu, Jun 19 - Tue, Jun 24
USM
Koh Samui
SIN
Singapore
$276 Roundtrip, found 2 days ago
$276
Roundtrip
found 2 days ago
Select Scoot flight, departing Thu, Jun 19 from Koh Samui to Singapore, returning Tue, Jun 24, priced at $276 found 2 days ago
Scoot
Tue, Jun 24 - Sat, Jun 28
USM
Koh Samui
SIN
Singapore
$279 Roundtrip, found 1 day ago
$279
Roundtrip
found 1 day ago
Select Scoot flight, departing Tue, Jun 24 from Koh Samui to Singapore, returning Sat, Jun 28, priced at $279 found 1 day ago
Scoot
Thu, May 1 - Sun, May 4
USM
Koh Samui
SIN
Singapore
$280 Roundtrip, found 15 hours ago
$280
Roundtrip
found 15 hours ago
Select Scoot flight, departing Thu, May 1 from Koh Samui to Singapore, returning Sun, May 4, priced at $280 found 15 hours ago
Scoot
Thu, Jun 19 - Tue, Jun 24
USM
Koh Samui
SIN
Singapore
$282 Roundtrip, found 2 days ago
$282
Roundtrip
found 2 days ago
Select Scoot flight, departing Thu, Jun 19 from Koh Samui to Singapore, returning Tue, Jun 24, priced at $282 found 2 days ago
Scoot
Wed, May 7 - Wed, May 14
USM
Koh Samui
SIN
Singapore
$286 Roundtrip, found 12 hours ago
$286
Roundtrip
found 12 hours ago
Select Scoot flight, departing Wed, May 7 from Koh Samui to Singapore, returning Wed, May 14, priced at $286 found 12 hours ago
Scoot
Thu, Jun 19 - Tue, Jun 24
USM
Koh Samui
SIN
Singapore
$289 Roundtrip, found 2 days ago
$289
Roundtrip
found 2 days ago
Select Scoot flight, departing Thu, Jun 19 from Koh Samui to Singapore, returning Tue, Jun 24, priced at $289 found 2 days ago
Bangkok Airways
Tue, Jun 24 - Sat, Jun 28
USM
Koh Samui
SIN
Singapore
$469 Roundtrip, found 1 day ago
$469
Roundtrip
found 1 day ago
Select Bangkok Airways flight, departing Tue, Jun 24 from Koh Samui to Singapore, returning Sat, Jun 28, priced at $469 found 1 day ago
Thai Airways International
Tue, Jun 24 - Sat, Jun 28
USM
Koh Samui
SIN
Singapore
$481 Roundtrip, found 1 day ago
$481
Roundtrip
found 1 day ago
Select Thai Airways International flight, departing Tue, Jun 24 from Koh Samui to Singapore, returning Sat, Jun 28, priced at $481 found 1 day ago
Flights from Samui Intl. Airport (USM) to Singapore (SIN)
Origin airport
Samui Intl. Airport
Destination airport
Changi
Airlines serving
Bangkok Airways, Scoot, Thai Airways International
Roundtrip price
$273
Distance
627 mi

Samui Intl. Airport to Singapore Flights

The cheapest times to fly from Samui Intl. Airport to Singapore

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Samui Intl. Airport to Singapore are during the month of June. You can find some of the cheapest flights from Samui Intl. Airport to Singapore with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Samui Intl. Airport to Singapore

Sunday is one of the best days to book for cheap flights from Samui Intl. Airport to Singapore: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Samui Intl. Airport to Singapore

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Samui Intl. Airport to Singapore in 2025. You can also book with separate airlines for your outbound and return journeys, from $122 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Samui Intl. Airport to Singapore flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Samui Intl. Airport to Singapore airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How long does it take to fly from Ko Samui Airport (USM) to Changi Airport (SIN)?
With Bangkok Airways, a direct flight takes roughly 1 hour and 55 minutes. Grab a seat on the 1:30PM flight from Ko Samui Airport and come in to land at SIN at 4:25PM. Clinch an epic deal on this and other routes when you book your ticket with Expedia.
Is it cheaper to buy a plane ticket from Ko Samui Airport to Changi Airport (SIN) last minute?
When it’s time to book your flights, being organized pays off. While you may be able to find a deal on a Ko Samui Airport to Changi Airport (SIN) flight at the last minute, prices usually don’t get cheaper as the departure date nears. Based on flight pricing and demand studies in 2022, we have found that the sweet spot to book a domestic flight is between 28 – 35 days ahead. For international journeys it’s between three and four months.
What airline has the least delays from USM to Changi Airport?
Head off with Bangkok Airways from Ko Samui Airport to Changi Airport (SIN) and land at the time printed on your ticket. This airline is the top performer on this route, with 80% of on-time arrivals. If your flight is delayed for some reason, the free Expedia App is an easy way to stay in the loop. Our popular app provides real-time trip alerts, from flight delays to gate changes and the carousel number to collect your luggage.
What airports do you fly into for Singapore from Koh Samui?
Changi Airport (SIN), Paya Lebar Air Base Airport (QPG) and Seletar Airport (XSP) are your options when jetting off from Koh Samui to Singapore. About 11 mi northeast of the heart of Singapore, Changi Airport (SIN) is the city’s main hub. Keep in mind things such as flight arrival and departure times and the distance to your hotel before picking your airport. Universal Studios Singapore and Haji Lane are a couple of leading attractions to check out when you reach your destination.
What are the most popular departure times for flights from Ko Samui Airport (USM) to Singapore Airport?
The most popular departure times for flights from Ko Samui Airport (USM) to Changi Airport (SIN) are between 1:00 PM - 2:00 PM on Bangkok Airways. One helpful tip is to head off in the morning. The earlier you travel, the better your chances of a delay-free flight as air traffic hasn’t yet built up around airports.
Can I change the date of my flight from Ko Samui Airport (USM) to SIN?
We know plans can get upended, so Expedia is here to help make amending your journey as easy as possible. First, find your Ko Samui Airport to Singapore Airport itinerary through the Expedia Trips portal and check the ticket conditions and rules to see if change fees apply. If you purchased your ticket in the last 24 hours, some airlines will allow you to cancel for free and book new flights. If you booked more than 24 hours ago, connect with us through our Customer Service portal to see how we can assist.

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*Available to One Key members.