Cheap Flights from Guam (GUM) to Samui Intl. Airport (USM)

Popular airlines from Barrigada - A.B. Won Pat International Airport (GUM) to Samui Intl. Airport (USM)

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Cheap Flights from Guam to Samui Intl. Airport (GUM-USM)

Prices were available within the past 7 days and start at for one-way flights and $1,298 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Philippine Airlines
Wed, Jun 10 - Fri, Jun 26
GUM
Guam
USM
Koh Samui
$1,298 Roundtrip, found 21 hours ago
$1,298
Roundtrip
found 21 hours ago
Select Philippine Airlines flight, departing Wed, Jun 10 from Guam to Koh Samui, returning Fri, Jun 26, priced at $1,298 found 21 hours ago
Philippine Airlines
Fri, Dec 26 - Mon, Jan 5
GUM
Guam
USM
Koh Samui
$2,317 Roundtrip, found 1 day ago
$2,317
Roundtrip
found 1 day ago
Select Philippine Airlines flight, departing Fri, Dec 26 from Guam to Koh Samui, returning Mon, Jan 5, priced at $2,317 found 1 day ago
Philippine Airlines
Fri, Dec 26 - Mon, Jan 5
GUM
Guam
USM
Koh Samui
$2,321 Roundtrip, found 1 day ago
$2,321
Roundtrip
found 1 day ago
Select Philippine Airlines flight, departing Fri, Dec 26 from Guam to Koh Samui, returning Mon, Jan 5, priced at $2,321 found 1 day ago
Philippine Airlines
Fri, Dec 26 - Mon, Jan 5
GUM
Guam
USM
Koh Samui
$2,377 Roundtrip, found 1 day ago
$2,377
Roundtrip
found 1 day ago
Select Philippine Airlines flight, departing Fri, Dec 26 from Guam to Koh Samui, returning Mon, Jan 5, priced at $2,377 found 1 day ago
Philippine Airlines
Fri, Dec 26 - Mon, Jan 5
GUM
Guam
USM
Koh Samui
$2,399 Roundtrip, found 1 day ago
$2,399
Roundtrip
found 1 day ago
Select Philippine Airlines flight, departing Fri, Dec 26 from Guam to Koh Samui, returning Mon, Jan 5, priced at $2,399 found 1 day ago
Philippine Airlines
Fri, Dec 26 - Mon, Jan 5
GUM
Guam
USM
Koh Samui
$2,403 Roundtrip, found 1 day ago
$2,403
Roundtrip
found 1 day ago
Select Philippine Airlines flight, departing Fri, Dec 26 from Guam to Koh Samui, returning Mon, Jan 5, priced at $2,403 found 1 day ago
Philippine Airlines
Fri, Dec 26 - Mon, Jan 5
GUM
Guam
USM
Koh Samui
$2,437 Roundtrip, found 1 day ago
$2,437
Roundtrip
found 1 day ago
Select Philippine Airlines flight, departing Fri, Dec 26 from Guam to Koh Samui, returning Mon, Jan 5, priced at $2,437 found 1 day ago
Philippine Airlines
Fri, Dec 26 - Mon, Jan 5
GUM
Guam
USM
Koh Samui
$2,441 Roundtrip, found 1 day ago
$2,441
Roundtrip
found 1 day ago
Select Philippine Airlines flight, departing Fri, Dec 26 from Guam to Koh Samui, returning Mon, Jan 5, priced at $2,441 found 1 day ago
Philippine Airlines
Fri, Dec 26 - Mon, Jan 5
GUM
Guam
USM
Koh Samui
$2,449 Roundtrip, found 1 day ago
$2,449
Roundtrip
found 1 day ago
Select Philippine Airlines flight, departing Fri, Dec 26 from Guam to Koh Samui, returning Mon, Jan 5, priced at $2,449 found 1 day ago
Philippine Airlines
Fri, Dec 26 - Mon, Jan 5
GUM
Guam
USM
Koh Samui
$2,453 Roundtrip, found 1 day ago
$2,453
Roundtrip
found 1 day ago
Select Philippine Airlines flight, departing Fri, Dec 26 from Guam to Koh Samui, returning Mon, Jan 5, priced at $2,453 found 1 day ago
Philippine Airlines
Fri, Dec 26 - Mon, Jan 5
GUM
Guam
USM
Koh Samui
$2,459 Roundtrip, found 1 day ago
$2,459
Roundtrip
found 1 day ago
Select Philippine Airlines flight, departing Fri, Dec 26 from Guam to Koh Samui, returning Mon, Jan 5, priced at $2,459 found 1 day ago
Philippine Airlines
Fri, Dec 26 - Mon, Jan 5
GUM
Guam
USM
Koh Samui
$2,494 Roundtrip, found 1 day ago
$2,494
Roundtrip
found 1 day ago
Select Philippine Airlines flight, departing Fri, Dec 26 from Guam to Koh Samui, returning Mon, Jan 5, priced at $2,494 found 1 day ago
Philippine Airlines
Fri, Dec 26 - Mon, Jan 5
GUM
Guam
USM
Koh Samui
$2,498 Roundtrip, found 1 day ago
$2,498
Roundtrip
found 1 day ago
Select Philippine Airlines flight, departing Fri, Dec 26 from Guam to Koh Samui, returning Mon, Jan 5, priced at $2,498 found 1 day ago
Philippine Airlines
Fri, Dec 26 - Mon, Jan 5
GUM
Guam
USM
Koh Samui
$2,509 Roundtrip, found 1 day ago
$2,509
Roundtrip
found 1 day ago
Select Philippine Airlines flight, departing Fri, Dec 26 from Guam to Koh Samui, returning Mon, Jan 5, priced at $2,509 found 1 day ago
Philippine Airlines
Fri, Dec 26 - Mon, Jan 5
GUM
Guam
USM
Koh Samui
$2,519 Roundtrip, found 1 day ago
$2,519
Roundtrip
found 1 day ago
Select Philippine Airlines flight, departing Fri, Dec 26 from Guam to Koh Samui, returning Mon, Jan 5, priced at $2,519 found 1 day ago
Philippine Airlines
Fri, Dec 26 - Mon, Jan 5
GUM
Guam
USM
Koh Samui
$2,523 Roundtrip, found 1 day ago
$2,523
Roundtrip
found 1 day ago
Select Philippine Airlines flight, departing Fri, Dec 26 from Guam to Koh Samui, returning Mon, Jan 5, priced at $2,523 found 1 day ago
Philippine Airlines
Fri, Dec 26 - Mon, Jan 5
GUM
Guam
USM
Koh Samui
$2,554 Roundtrip, found 1 day ago
$2,554
Roundtrip
found 1 day ago
Select Philippine Airlines flight, departing Fri, Dec 26 from Guam to Koh Samui, returning Mon, Jan 5, priced at $2,554 found 1 day ago
Philippine Airlines
Fri, Dec 26 - Mon, Jan 5
GUM
Guam
USM
Koh Samui
$2,569 Roundtrip, found 1 day ago
$2,569
Roundtrip
found 1 day ago
Select Philippine Airlines flight, departing Fri, Dec 26 from Guam to Koh Samui, returning Mon, Jan 5, priced at $2,569 found 1 day ago
Philippine Airlines
Fri, Dec 26 - Mon, Jan 5
GUM
Guam
USM
Koh Samui
$2,573 Roundtrip, found 1 day ago
$2,573
Roundtrip
found 1 day ago
Select Philippine Airlines flight, departing Fri, Dec 26 from Guam to Koh Samui, returning Mon, Jan 5, priced at $2,573 found 1 day ago
Philippine Airlines
Fri, Dec 26 - Mon, Jan 5
GUM
Guam
USM
Koh Samui
$2,614 Roundtrip, found 1 day ago
$2,614
Roundtrip
found 1 day ago
Select Philippine Airlines flight, departing Fri, Dec 26 from Guam to Koh Samui, returning Mon, Jan 5, priced at $2,614 found 1 day ago

Frequently asked questions

How much does a flight from A.B. Won Pat Intl. Airport (GUM) to Ko Samui Airport (USM) cost?
Lock in a cheap one-way flight or cheap return flight from $1,298 from A.B. Won Pat Intl. Airport (GUM) to Ko Samui Airport (USM) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from A.B. Won Pat Intl. Airport (GUM) to Ko Samui Airport (USM)?
The cheapest month to fly from GUM to USM is June, when demand is low. Off-peak season is generally when airlines offer lower prices between these airports.
What is the cheapest airline that flies from A.B. Won Pat Intl. Airport (GUM) to Ko Samui Airport (USM)?
To find the cheapest airline flying from GUM to USM, use Expedia's filter tool. Tailor your search based on your travel style, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from A.B. Won Pat Intl. Airport (GUM) to Ko Samui Airport (USM)?
There are no daily direct flights departing from A.B. Won Pat Intl. Airport (GUM) to Ko Samui Airport (USM). But you can book flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be on your way in no time at all.
What day of the week has the most flights from GUM to USM?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can vary depending on a number of factors, including the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from A.B. Won Pat Intl. Airport (GUM) to Ko Samui Airport (USM)?
Opt for a flight from A.B. Won Pat Intl. Airport (GUM) to Ko Samui Airport (USM) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Departures after this hour are on average 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 A.B. Won Pat Intl. Airport (GUM) to Ko Samui Airport (USM) last-minute?
Last-minute bookings from GUM to USM are typically more expensive. To lock in the best prices, start looking for flights as soon as possible. That said, if your travel plans are flexible, it's possible to score a cheap fare right before your trip.
Is it cheaper to book a GUM to USM flight and hotel package?
Compared with arranging hotels and flights separately, booking a GUM to USM flight and hotel package with Expedia could result in significant savings. What's more, managing everything in one place will take the hassle out of planning your trip. Just secure your flights and select from our wide range of stays, then tailor your trip with other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from A.B. Won Pat Intl. Airport (GUM) to Ko Samui Airport (USM)?
Typically, you're able to reschedule or cancel your GUM to USM flight. However, there may be additional fees, especially if you made your booking over 24 hours ago. Double-check your itinerary for the airline's fees and policies on flight changes, or if you need further information, go to our Customer Service portal.

Travel information

Origin airport
A.B. Won Pat Intl.
Destination airport
Samui Intl. Airport
Roundtrip price
$1,298
Distance
3037 mi

Book with confidence

Guam to Samui Intl. Airport Flights

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

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

 

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

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

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 Guam to Samui Intl. Airport in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 Guam to Samui Intl. Airport 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 Guam to Samui Intl. Airport 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.

 

Guam to Samui Intl. Airport Flights
*Available to One Key members.