When did momondo last update prices for flights from Guam to San Antonio Airport?

Prices for flights from Guam to San Antonio Airport are updated daily.

How many operators does momondo search for flights from Guam to San Antonio Airport?

As of November 2025, there is 1 operator available to choose from for flights from Guam to San Antonio Airport.

How old do you have to be to fly from Guam to San Antonio Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Guam to San Antonio Airport.

What documentation or ID do you need to fly to San Antonio Airport?

The travel and health documents required for your trip to San Antonio Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Antonio Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$1,634 Cheap Flights from Guam to San Antonio in 2025/26

1 adult

0 bags

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Find the cheapest flights from Guam to San Antonio

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Recent round-trip flight deals from Guam to San Antonio

Enter your travel dates to find the best prices.

7:05 am - 9:55 pmGUM-SAT

29h 50m2 stops

12:24 pm - 6:50 pmSAT-GUM

39h 26m2 stops

$1,634United Airlines

Find Deal

Thu, Mar 12 - Mon, Mar 16

1:00 am - 10:19 pmGUM-SAT

36h 19m2 stops

8:00 am - 11:05 pmSAT-GUM

24h 05m2 stops

$1,911Delta

Find Deal

Wed, Mar 11 - Mon, Mar 16

7:25 am - 1:05 pmGUM-SAT

20h 40m2 stops

5:00 am - 1:45 amSAT-GUM

29h 45m3 stops

$1,941United Airlines

Find Deal

Thu, Mar 12 - Mon, Mar 16

United Airlines flights from Guam to San Antonio

Our best United Airlines deals on Guam to San Antonio flight tickets

United Airlines

Mar 12

GUM7:05 amTamuning Guam Intl

29h 50m

2 stops

SAT9:55 pmSan Antonio

Mar 16

SAT12:24 pmSan Antonio

39h 26m

2 stops

GUM6:50 pmTamuning Guam Intl

$1,634

Find similar

United Airlines

Mar 12

GUM7:25 amTamuning Guam Intl

20h 40m

2 stops

SAT1:05 pmSan Antonio

Mar 16

SAT5:00 amSan Antonio

29h 45m

3 stops

GUM1:45 amTamuning Guam Intl

$1,941

Find similar

Fly from

Fly to

Route

Depart

Return

Price

TamuningSan Antonio

GUM - SAT

GUMSAT

Tamuning Guam Intl

Thu 3/12

7:05 am-9:55 pm

2 stops29h 50m

San Antonio

Mon 3/16

12:24 pm-6:50 pm

2 stops39h 26m

$1,634

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

Thu 3/12

7:25 am-1:05 pm

2 stops20h 40m

San Antonio

Mon 3/16

5:00 am-1:45 am

3 stops29h 45m

$1,941

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Guam to San Antonio

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to San Antonio?

The cheapest day to depart on your flight to San Antonio is on a Friday when prices can be found for as low as $1,729. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to San Antonio on Sunday is $2,156.

What is the cheapest time of day to depart on your flight to San Antonio?

According to our data, the cheapest time of day to fly to San Antonio is in the morning. momondo users have found flights departing from Guam to San Antonio in the morning for as low as $1,790. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to San Antonio are more costly at noon, with an average ticket price of $1,796. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

Cheap Guam to San Antonio flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Guam to San Antonio

Direct flights	None

There are no direct flights from Guam to San Antonio. There are no popular flight routes from Guam to San Antonio.

Search flight deals

When did momondo last update prices for flights from Guam to San Antonio Airport?
Prices for flights from Guam to San Antonio Airport are updated daily.
How many operators does momondo search for flights from Guam to San Antonio Airport?
As of November 2025, there is 1 operator available to choose from for flights from Guam to San Antonio Airport.
How old do you have to be to fly from Guam to San Antonio Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Guam to San Antonio Airport.
What documentation or ID do you need to fly to San Antonio Airport?
The travel and health documents required for your trip to San Antonio Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Antonio Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Guam to San Antonio

Compare and see reviews for airlines that fly from Guam to San Antonio with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $1,580	Free Cancellation	Rating 7.4 8,994 reviews		Search United Airlines flights

New Braunfels

Boerne

Kerrville

Schertz

Pleasanton

Why use momondo?

Why should I use momondo to find a flight deal from Guam to San Antonio?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Antonio from Guam.

Can I find flights from Guam to San Antonio with flexible booking policies on momondo?

momondo does allow users to show only those flights to San Antonio from Guam which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Guam to San Antonio?

momondo helps you find the best flight between Guam and San Antonio by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Guam to San Antonio right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Guam to San Antonio flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.