$537 Cheap Flights from Samui Intl. Airport (USM) to Siargao (IAO)

View $537 flight on Wed, May 13, 2026Opens in a new window

Popular airlines from Samui Intl. Airport (USM) to Siargao (IAO-Sayak)

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Cheap Flights from Samui Intl. Airport to Siargao (USM-IAO)

Prices were available within the past 7 days and start at $537 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Flights from Samui Intl. Airport (USM) to Siargao (IAO)
Origin airport
Samui Intl. Airport
Destination airport
Sayak
Distance
1767 mi

Samui Intl. Airport to Siargao Flights

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

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 Siargao are during the month of . You can find some of the cheapest flights from Samui Intl. Airport to Siargao with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Samui Intl. Airport to Siargao: 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 Siargao

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 Siargao in 2026. You can also book with separate airlines for your outbound and return journeys, from $537 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 Siargao 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 Siargao 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 much does a flight from Ko Samui Airport (USM) to Sayak Airport (IAO) cost?
Lock in a cheap one-way flight from $537 or cheap return flight from Ko Samui Airport (USM) to Sayak Airport (IAO) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Ko Samui Airport (USM) to Sayak Airport (IAO)?
is the cheapest month to fly from USM to IAO. Avoiding peak travel times is often the key to better flight prices.
What is the cheapest airline that flies from Ko Samui Airport (USM) to Sayak Airport (IAO)?
Use the filter tool on Expedia to compare different airlines and find the most affordable carrier that'll fly you from USM to IAO. Then, sort your results by "Price (lowest to highest)" to snap up a good deal.
How many flights per day from Ko Samui Airport (USM) to Sayak Airport (IAO)?
You'll need to hop on a flight with a layover when traveling from Ko Samui Airport (USM) to Sayak Airport (IAO). There are no daily direct flights on this route. However, just filter your search to include one or two stops to find an option that works for you.
What day of the week has the most flights from USM to IAO?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can vary based on a number of factors, such as the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Ko Samui Airport (USM) to Sayak Airport (IAO)?
Opt for a flight from Ko Samui Airport (USM) to Sayak Airport (IAO) that takes off before 3 PM to reduce the risk of delays and cancellations. Departures after this hour have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Ko Samui Airport (USM) to Sayak Airport (IAO) last-minute?
Waiting until just before your trip to book a ticket from USM to IAO often results in higher prices. While you might find some last-minute discounts, they aren't always guaranteed. Keep your travel schedule open for the best chance of scoring a bargain.
Can I cancel or change the date of my flight from Ko Samui Airport (USM) to Sayak Airport (IAO)?
Typically, you're able to reschedule or cancel your USM to IAO flight. However, there may be additional charges, especially if your booking was made more than 24 hours ago. Double-check your itinerary for the airline's fees and rules on flight changes, or if you'd like more information, go to our Customer Service portal.
*Available to One Key members.