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$1,634+ Cheap flights from Guam to San Antonio (SAT)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/12. Fares are subject to change and may not be available on all flights or dates of travel.
GUM — SAT
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap flight deals from Guam to San Antonio

Keep the following information in mind while searching for Guam to San Antonio flight deals. Data was last updated September 16, 2025.

Round-trip from

$1,634
(United Airlines)

Popular in

August

Cheapest in

March
From Guam to San Antonio
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($238 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($47 potential savings vs. average RT price).
Search Deals

Find flight deals from Guam to San Antonio

Cheapest flights from Guam to San Antonio
Explore the most affordable flight options available from Guam to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This Delta deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/161:00 amGUM - SAT
2 stops49h 55mDelta
Mon 1/128:00 amSAT - GUM
2 stops23h 05mDelta
Deal found 9/16$1,654
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/157:40 amGUM - SAT
2 stops23h 38mUnited Airlines
Thu 2/267:40 amSAT - GUM
2 stops23h 00mUnited Airlines
Deal found 9/15$4,987
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/141:00 amGUM - SAT
2 stops36h 02mDelta
Thu 2/266:20 pmSAT - GUM
2 stops36h 45mDelta
Deal found 9/15$11,467

Cheapflights Fare Finder

 
Customize your flight search to find flights from Guam to San Antonio that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 16, 2025.
Use the filters below to find and compare flights from Guam to San Antonio that are best for you.

Fly from

Guam

Fly to

San Antonio

Route

Depart

Return

Price

TamuningSan Antonio

GUM - SAT

GUMSAT

Tamuning Guam Intl

Thu 3/12

7:05 am-12:03 am

2 stops31h 58m

San Antonio

Mon 3/16

5:55 pm-6:50 pm

2 stops33h 55m

$1,634

TamuningSan Antonio

GUM - SAT

GUMSAT

Tamuning Guam Intl

Sun 11/16

1:00 am-10:55 am

2 stops49h 55m

San Antonio

Mon 1/12

8:00 am-11:05 pm

2 stops23h 05m

$1,654

TamuningSan Antonio

GUM - SAT

GUMSAT

Tamuning Guam Intl

Wed 3/11

1:00 am-10:19 pm

2 stops36h 19m

San Antonio

Mon 3/16

8:00 am-11:05 pm

2 stops24h 05m

$1,911

TamuningSan Antonio

GUM - SAT

GUMSAT

Tamuning Guam Intl

Sat 11/15

7:40 am-3:18 pm

2 stops23h 38m

San Antonio

Thu 2/26

7:40 am-10:40 pm

2 stops23h 00m

$4,987

TamuningSan Antonio

GUM - SAT

GUMSAT

Tamuning Guam Intl

Fri 11/14

1:00 am-9:02 pm

2 stops36h 02m

San Antonio

Thu 2/26

6:20 pm-11:05 pm

2 stops36h 45m

$11,467

TamuningSan Antonio

GUM - SAT

GUMSAT

Tamuning Guam Intl

Mon 10/20

3:00 am-12:04 am

3 stops36h 04m

$2,436

TamuningSan Antonio

GUM - SAT

GUMSAT

Tamuning Guam Intl

Tue 10/21

7:10 am-4:50 pm

2 stops24h 40m

$2,504

TamuningSan Antonio

GUM - SAT

GUMSAT

Tamuning Guam Intl

Mon 10/20

1:55 am-12:31 am

2 stops37h 36m

$4,029

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Best time to book a flight from Guam to San Antonio

Have a flexible travel schedule? Discover the best time to fly to San Antonio from Guam with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Guam to San Antonio

What is the cheapest time of day to fly from GU to SAT?

Find hourly flight availability from Guam to San Antonio. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

When flying from Guam to San Antonio, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing San Antonio

Get insights into the airlines that provide service to San Antonio. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Antonio. Reviews last updated September 16, 2025.
Get a feel of what it's like to fly with United Airlines from Guam to San Antonio by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,924 reviews

Food

6.6

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
United Airlines
7.4
Good
8,924 reviews
United Airlines
7.4
Good
8,924 reviews

Food

6.6

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Related info for your journey

Find useful and relevant information for your journey from Guam to San Antonio. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to San Antonio from Guam?

    For a flight from Guam to San Antonio, you will be flying into San Antonio. San Antonio (SAT) is just 7.6 mi from the center of the city.

  • How long is the flight from Guam to San Antonio?

    For as low as $1,634, United Airlines can have you in San Antonio from Guam in 31h 58m. The distance from Guam to San Antonio is about 7278 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Guam to San Antonio that include hotel bookings?

    Yes. In addition to deals on Guam to San Antonio flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Guam to San Antonio?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Guam to San Antonio.

  • Can I find deals for business class flights from Guam to San Antonio?

    Yes. Cheapflights offers flight deals from Guam to San Antonio by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Guam to San Antonio?

    Currently, August is the cheapest month in which you can book a flight from Guam to San Antonio (average of $295). Flying from Guam to San Antonio in March is currently the most expensive (average of $376). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
New Braunfels
Kerrville

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Top airline flying from Guam to San Antonio

Discover the top airline that operate flights from Guam to San Antonio. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,580Average$1,815FlexibilityNo cancel feeOn-time69%

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