$864 Cheap Flights from San Antonio (SAT) to Guam (GUM)

View $864 flight on Fri, Jan 9, 2026Opens in a new window

Popular airlines from San Antonio International Airport (SAT) to Barrigada - A.B. Won Pat International Airport (GUM)

Cheap Flights from San Antonio to Guam (SAT-GUM)

Prices were available within the past 7 days and start at $864 for one-way flights and $876 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sun, Jan 25 - Tue, Jan 27
SAT
San Antonio
GUM
Guam
$876 Roundtrip, found 2 days ago
$876
Roundtrip
found 2 days ago
Select United flight, departing Sun, Jan 25 from San Antonio to Guam, returning Tue, Jan 27, priced at $876 found 2 days ago
United
Sun, Jan 25 - Tue, Jan 27
SAT
San Antonio
GUM
Guam
$997 Roundtrip, found 2 days ago
$997
Roundtrip
found 2 days ago
Select United flight, departing Sun, Jan 25 from San Antonio to Guam, returning Tue, Jan 27, priced at $997 found 2 days ago
United
Sun, Jan 25 - Tue, Jan 27
SAT
San Antonio
GUM
Guam
$1,084 Roundtrip, found 2 days ago
$1,084
Roundtrip
found 2 days ago
Select United flight, departing Sun, Jan 25 from San Antonio to Guam, returning Tue, Jan 27, priced at $1,084 found 2 days ago
United
Sun, Jan 25 - Tue, Jan 27
SAT
San Antonio
GUM
Guam
$1,118 Roundtrip, found 2 days ago
$1,118
Roundtrip
found 2 days ago
Select United flight, departing Sun, Jan 25 from San Antonio to Guam, returning Tue, Jan 27, priced at $1,118 found 2 days ago
United
Sun, Jan 25 - Tue, Jan 27
SAT
San Antonio
GUM
Guam
$1,205 Roundtrip, found 2 days ago
$1,205
Roundtrip
found 2 days ago
Select United flight, departing Sun, Jan 25 from San Antonio to Guam, returning Tue, Jan 27, priced at $1,205 found 2 days ago
United
Sun, Jan 25 - Tue, Jan 27
SAT
San Antonio
GUM
Guam
$1,326 Roundtrip, found 2 days ago
$1,326
Roundtrip
found 2 days ago
Select United flight, departing Sun, Jan 25 from San Antonio to Guam, returning Tue, Jan 27, priced at $1,326 found 2 days ago
Hawaiian Airlines
Thu, Feb 12 - Sat, Feb 21
SAT
San Antonio
GUM
Guam
$1,668 Roundtrip, found 2 days ago
$1,668
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Thu, Feb 12 from San Antonio to Guam, returning Sat, Feb 21, priced at $1,668 found 2 days ago
Hawaiian Airlines
Thu, Feb 12 - Fri, Feb 20
SAT
San Antonio
GUM
Guam
$1,705 Roundtrip, found 2 days ago
$1,705
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Thu, Feb 12 from San Antonio to Guam, returning Fri, Feb 20, priced at $1,705 found 2 days ago
Hawaiian Airlines
Thu, Jan 8 - Fri, Jan 23
SAT
San Antonio
GUM
Guam
$1,739 Roundtrip, found 1 day ago
$1,739
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Thu, Jan 8 from San Antonio to Guam, returning Fri, Jan 23, priced at $1,739 found 1 day ago
Delta
Mon, Feb 2 - Mon, Feb 16
SAT
San Antonio
GUM
Guam
$1,915 Roundtrip, just found
$1,915
Roundtrip
just found
Select Delta flight, departing Mon, Feb 2 from San Antonio to Guam, returning Mon, Feb 16, priced at $1,915 just found

Find the cheapest month to fly from San Antonio (SAT) to Barrigada (GUM)

January is typically the cheapest month to fly

From $1,284 - $2,614 per traveler.

Alternative airports near Barrigada

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to A.B. Won Pat Intl. GUM. Cheapest option available. Flights from $2,121
GUM
A.B. Won Pat Intl.
Cheapest
Flights from $2,121
Flights from San Antonio (SAT) to Guam (GUM)
Origin airport
San Antonio Intl.
Destination airport
A.B. Won Pat Intl.
Airlines serving
Delta, United
Roundtrip price
$876
Distance
7281 mi

San Antonio to Guam Flights

The cheapest times to fly from San Antonio to Guam

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 San Antonio to Guam are during the month of January. You can find some of the cheapest flights from San Antonio to Guam with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Antonio to Guam

Sunday is one of the best days to book for cheap flights from San Antonio to Guam: 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 San Antonio to Guam

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 San Antonio to Guam in 2026. You can also book with separate airlines for your outbound and return journeys, from $864 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 San Antonio to Guam 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 San Antonio to Guam 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 San Antonio Intl. Airport (SAT) to A.B. Won Pat Intl. Airport (GUM) cost?
Get a cheap one-way flight from $864 or cheap return flight from $876 from San Antonio Intl. Airport (SAT) to A.B. Won Pat Intl. Airport (GUM) 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 San Antonio Intl. Airport (SAT) to A.B. Won Pat Intl. Airport (GUM)?
The cheapest month to fly from SAT to GUM is January, when demand is low. Off-peak season is generally when you'll find cheap fares for travel between these airports.
What is the cheapest airline that flies from San Antonio Intl. Airport (SAT) to A.B. Won Pat Intl. Airport (GUM)?
To find the cheapest airline that'll fly you from SAT to GUM, use Expedia's filter tool. Customize your search based on your travel needs, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from San Antonio Intl. Airport (SAT) to A.B. Won Pat Intl. Airport (GUM)?
Nonstop flights from San Antonio Intl. Airport (SAT) to A.B. Won Pat Intl. Airport (GUM) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SAT to GUM?
Typically you'll find the widest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* But this can vary based on the time of year, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from San Antonio Intl. Airport (SAT) to A.B. Won Pat Intl. Airport (GUM)?
To avoid possible delays on the San Antonio Intl. Airport (SAT) to A.B. Won Pat Intl. Airport (GUM) route, aim to fly before 3 PM. Departures after this hour have a 22% higher chance of being 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 San Antonio Intl. Airport (SAT) to A.B. Won Pat Intl. Airport (GUM) last-minute?
Booking your plane ticket from SAT to GUM shortly before your getaway is typically more expensive. But if you're flexible with your schedule, you could snag a cheap last-minute fare.
Is it cheaper to book a SAT to GUM flight and hotel package?
You can save money by booking a SAT to GUM flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one place. After selecting your ideal flights and accommodations, consider adding extras including tours, activities and car rentals.
Can I cancel or change the date of my flight from San Antonio Intl. Airport (SAT) to A.B. Won Pat Intl. Airport (GUM)?
If you reserved your SAT to GUM flight in the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you want more information.

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*Available to One Key members.