$155 Cheap Flights from General Santos (GES) to Siargao (IAO)

View $155 flight on Fri, Oct 24, 2025Opens in a new window

Popular airlines from General Santos (GES) to Siargao (IAO-Sayak)

    notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
    deals illustration

    Book smarter

    Save up to 30% on select hotels after you book a flight*
    trophy illustration

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from General Santos to Siargao (GES-IAO)

Prices were available within the past 7 days and start at $155 for one-way flights and $308 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Philippine Airlines
Wed, Dec 31 - Fri, Jan 2
GES
General Santos
IAO
Siargao Island
$308 Roundtrip, found 4 days ago
$308
Roundtrip
found 4 days ago
Select Philippine Airlines flight, departing Wed, Dec 31 from General Santos to Siargao Island, returning Fri, Jan 2, priced at $308 found 4 days ago
Philippine Airlines
Sun, Dec 28 - Tue, Dec 30
GES
General Santos
IAO
Siargao Island
$314 Roundtrip, found 4 days ago
$314
Roundtrip
found 4 days ago
Select Philippine Airlines flight, departing Sun, Dec 28 from General Santos to Siargao Island, returning Tue, Dec 30, priced at $314 found 4 days ago
Philippine Airlines
Mon, Dec 29 - Tue, Dec 30
GES
General Santos
IAO
Siargao Island
$323 Roundtrip, found 4 days ago
$323
Roundtrip
found 4 days ago
Select Philippine Airlines flight, departing Mon, Dec 29 from General Santos to Siargao Island, returning Tue, Dec 30, priced at $323 found 4 days ago
Philippine Airlines
Wed, Dec 31 - Mon, Jan 5
GES
General Santos
IAO
Siargao Island
$327 Roundtrip, found 4 days ago
$327
Roundtrip
found 4 days ago
Select Philippine Airlines flight, departing Wed, Dec 31 from General Santos to Siargao Island, returning Mon, Jan 5, priced at $327 found 4 days ago
Philippine Airlines
Sat, Dec 27 - Fri, Jan 2
GES
General Santos
IAO
Siargao Island
$333 Roundtrip, found 4 days ago
$333
Roundtrip
found 4 days ago
Select Philippine Airlines flight, departing Sat, Dec 27 from General Santos to Siargao Island, returning Fri, Jan 2, priced at $333 found 4 days ago
Philippine Airlines
Thu, Jan 1 - Fri, Jan 2
GES
General Santos
IAO
Siargao Island
$339 Roundtrip, found 4 days ago
$339
Roundtrip
found 4 days ago
Select Philippine Airlines flight, departing Thu, Jan 1 from General Santos to Siargao Island, returning Fri, Jan 2, priced at $339 found 4 days ago
Philippine Airlines
Fri, Jan 2 - Mon, Jan 5
GES
General Santos
IAO
Siargao Island
$342 Roundtrip, found 4 days ago
$342
Roundtrip
found 4 days ago
Select Philippine Airlines flight, departing Fri, Jan 2 from General Santos to Siargao Island, returning Mon, Jan 5, priced at $342 found 4 days ago
Philippine Airlines
Sat, Dec 27 - Mon, Dec 29
GES
General Santos
IAO
Siargao Island
$348 Roundtrip, found 4 days ago
$348
Roundtrip
found 4 days ago
Select Philippine Airlines flight, departing Sat, Dec 27 from General Santos to Siargao Island, returning Mon, Dec 29, priced at $348 found 4 days ago
Philippine Airlines
Sat, Dec 27 - Mon, Jan 5
GES
General Santos
IAO
Siargao Island
$352 Roundtrip, found 4 days ago
$352
Roundtrip
found 4 days ago
Select Philippine Airlines flight, departing Sat, Dec 27 from General Santos to Siargao Island, returning Mon, Jan 5, priced at $352 found 4 days ago
Philippine Airlines
Thu, Jan 1 - Mon, Jan 5
GES
General Santos
IAO
Siargao Island
$358 Roundtrip, found 4 days ago
$358
Roundtrip
found 4 days ago
Select Philippine Airlines flight, departing Thu, Jan 1 from General Santos to Siargao Island, returning Mon, Jan 5, priced at $358 found 4 days ago
Philippine Airlines
Fri, Dec 26 - Tue, Dec 30
GES
General Santos
IAO
Siargao Island
$406 Roundtrip, found 4 days ago
$406
Roundtrip
found 4 days ago
Select Philippine Airlines flight, departing Fri, Dec 26 from General Santos to Siargao Island, returning Tue, Dec 30, priced at $406 found 4 days ago
Philippine Airlines
Tue, Dec 30 - Wed, Dec 31
GES
General Santos
IAO
Siargao Island
$421 Roundtrip, found 4 days ago
$421
Roundtrip
found 4 days ago
Select Philippine Airlines flight, departing Tue, Dec 30 from General Santos to Siargao Island, returning Wed, Dec 31, priced at $421 found 4 days ago

Frequently asked questions

How much does a flight from General Santos Airport (GES) to Sayak Airport (IAO) cost?
Snag a cheap one-way flight from $155 or cheap return flight from $308 from General Santos Airport (GES) 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 General Santos Airport (GES) to Sayak Airport (IAO)?
December is the most affordable month to fly from GES to IAO. Traveling during quieter months is often the key to finding better fares.
What is the cheapest airline that flies from General Santos Airport (GES) to Sayak Airport (IAO)?
Use the filter tool on Expedia to compare airlines and find the most affordable carrier that'll fly you from GES to IAO. Then, sort your results by "Price (lowest to highest)" to pick up a good deal.
How many flights per day from General Santos Airport (GES) to Sayak Airport (IAO)?
Direct flights from General Santos Airport (GES) to Sayak Airport (IAO) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from GES to IAO?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can vary depending on various factors, including 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 General Santos Airport (GES) to Sayak Airport (IAO)?
To avoid potential delays on the General Santos Airport (GES) to Sayak Airport (IAO) route, fly before 3 PM. Flights after this time are 22% more likely to be canceled.**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 General Santos Airport (GES) to Sayak Airport (IAO) last-minute?
Booking your ticket from GES to IAO right before your trip is typically more expensive. But if there's some wiggle room with your departure dates and times, you could snag a cheap last-minute fare.
Can I cancel or change the date of my flight from General Santos Airport (GES) to Sayak Airport (IAO)?
If you reserved your GES to IAO flight in the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for further details.

Travel information

Origin airport
General Santos
Destination airport
Sayak
Roundtrip price
$308
Distance
269 mi

Book with confidence

General Santos to Siargao Flights

The cheapest times to fly from General Santos 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 General Santos to Siargao are during the month of December. You can find some of the cheapest flights from General Santos to Siargao with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from General Santos to Siargao

Sunday is one of the best days to book for cheap flights from General Santos 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 General Santos 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 General Santos to Siargao in 2025. You can also book with separate airlines for your outbound and return journeys, from $155 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 General Santos 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 General Santos 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.

 

General Santos to Siargao Flights

Explore a world of travel with Expedia

*Available to One Key members.