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Cheap flights from San Antonio to Guam from $1,228

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from San Antonio to Guam departing on 4/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from San Antonio to Guam

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:02 pm - 3:40 pm
SAT
-
GUM
54h 38m
2 stops
United Airlines Logo
7:05 am - 1:00 pm
GUM
-
SAT
20h 55m
2 stops
$1,228United Airlines
Mon, Apr 20 - Fri, Apr 24
Delta Logo
7:00 am - 3:35 pm
SAT
-
GUM
41h 35m
2 stops
Delta Logo
5:20 pm - 12:44 am
GUM
-
SAT
46h 24m
2 stops
$1,953Delta
Mon, May 4 - Sat, May 16
Delta Logo
5:20 am - 11:55 pm
SAT
-
GUM
27h 35m
2 stops
Delta Logo
2:00 am - 12:13 am
GUM
-
SAT
37h 13m
2 stops
$1,990Delta
Fri, May 1 - Thu, May 7
United Airlines Logo
7:43 am - 6:05 pm
SAT
-
GUM
19h 22m
2 stops
United Airlines Logo
7:05 am - 9:13 pm
GUM
-
SAT
29h 08m
2 stops
$2,019United Airlines
Tue, Jul 14 - Tue, Jul 28
United Airlines Logo
7:35 am - 3:50 pm
SAT
-
GUM
41h 15m
2 stops
United Airlines Logo
7:05 am - 7:50 pm
GUM
-
SAT
27h 45m
2 stops
$2,039United Airlines
Mon, Jul 13 - Tue, Jul 28
United Airlines Logo
6:15 am - 6:05 pm
SAT
-
GUM
20h 50m
2 stops
United Airlines Logo
12:10 pm - 10:54 pm
GUM
-
SAT
25h 44m
3 stops
$2,305United Airlines
Mon, May 4 - Sat, May 16
Delta Logo
7:00 am - 11:55 pm
SAT
-
GUM
25h 55m
2 stops
Delta Logo
2:00 am - 11:08 pm
GUM
-
SAT
36h 08m
2 stops
$2,310Delta
Fri, Apr 17 - Wed, Apr 22
United Airlines Logo
7:35 am - 6:05 pm
SAT
-
GUM
19h 30m
2 stops
United Airlines Logo
7:30 pm - 10:54 pm
GUM
-
SAT
42h 24m
3 stops
$2,352United Airlines
Fri, May 1 - Fri, May 8
United Airlines Logo
6:12 am - 6:05 pm
SAT
-
GUM
20h 53m
2 stops
United Airlines Logo
7:05 am - 4:57 pm
GUM
-
SAT
24h 52m
2 stops
$2,429United Airlines
Thu, Apr 23 - Thu, Apr 30
Delta Logo
6:31 am - 11:55 pm
SAT
-
GUM
26h 24m
2 stops
Delta Logo
2:00 am - 12:30 am
GUM
-
SAT
37h 30m
2 stops
$2,565Delta
Fri, Jun 12 - Thu, Jun 18

United Airlines flights from San Antonio to Guam

Our best United Airlines deals on San Antonio to Guam flight tickets
United Airlines
Apr 20
SAT6:02 pmSan Antonio
54h 38m
2 stops
GUM3:40 pmTamuning Guam Intl
Apr 24
GUM7:05 amTamuning Guam Intl
20h 55m
2 stops
SAT1:00 pmSan Antonio
$1,228
United Airlines
Jul 14
SAT7:43 amSan Antonio
19h 22m
2 stops
GUM6:05 pmTamuning Guam Intl
Jul 28
GUM7:05 amTamuning Guam Intl
29h 08m
2 stops
SAT9:13 pmSan Antonio
$2,019
United Airlines
Jul 13
SAT7:35 amSan Antonio
41h 15m
2 stops
GUM3:50 pmTamuning Guam Intl
Jul 28
GUM7:05 amTamuning Guam Intl
27h 45m
2 stops
SAT7:50 pmSan Antonio
$2,039

Delta flights from San Antonio to Guam

Our best Delta deals on San Antonio to Guam flight tickets
Delta
May 4
SAT7:00 amSan Antonio
41h 35m
2 stops
GUM3:35 pmTamuning Guam Intl
May 16
GUM5:20 pmTamuning Guam Intl
46h 24m
2 stops
SAT12:44 amSan Antonio
$1,953
Delta
May 1
SAT5:20 amSan Antonio
27h 35m
2 stops
GUM11:55 pmTamuning Guam Intl
May 7
GUM2:00 amTamuning Guam Intl
37h 13m
2 stops
SAT12:13 amSan Antonio
$1,990
Delta
Apr 17
SAT7:00 amSan Antonio
25h 55m
2 stops
GUM11:55 pmTamuning Guam Intl
Apr 22
GUM2:00 amTamuning Guam Intl
36h 08m
2 stops
SAT11:08 pmSan Antonio
$2,310

momondo Fare Finder

 
Customize your flight search to find flights from San Antonio to Guam 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, momondo users made 832,500 searches. Data last updated April 2, 2026.
Use the filters below to find and compare flights from San Antonio to Guam that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San AntonioTamuning

SAT - GUM

SATGUM

San Antonio

Mon 4/20

6:02 pm-3:40 pm

2 stops54h 38m

Tamuning Guam Intl

Fri 4/24

7:05 am-1:00 pm

2 stops20h 55m

$1,228

San AntonioTamuning

SAT - GUM

SATGUM

San Antonio

Mon 5/4

7:00 am-3:35 pm

2 stops41h 35m

Tamuning Guam Intl

Sat 5/16

5:20 pm-12:44 am

2 stops46h 24m

$1,953

San AntonioTamuning

SAT - GUM

SATGUM

San Antonio

Fri 5/1

5:20 am-11:55 pm

2 stops27h 35m

Tamuning Guam Intl

Thu 5/7

2:00 am-12:13 am

2 stops37h 13m

$1,990

San AntonioTamuning

SAT - GUM

SATGUM

San Antonio

Tue 7/14

7:43 am-6:05 pm

2 stops19h 22m

Tamuning Guam Intl

Tue 7/28

7:05 am-9:13 pm

2 stops29h 08m

$2,019

San AntonioTamuning

SAT - GUM

SATGUM

San Antonio

Mon 7/13

7:35 am-3:50 pm

2 stops41h 15m

Tamuning Guam Intl

Tue 7/28

7:05 am-7:50 pm

2 stops27h 45m

$2,039

San AntonioTamuning

SAT - GUM

SATGUM

San Antonio

Mon 5/4

6:15 am-6:05 pm

2 stops20h 50m

Tamuning Guam Intl

Sat 5/16

12:10 pm-10:54 pm

3 stops25h 44m

$2,305

San AntonioTamuning

SAT - GUM

SATGUM

San Antonio

Fri 4/17

7:00 am-11:55 pm

2 stops25h 55m

Tamuning Guam Intl

Wed 4/22

2:00 am-11:08 pm

2 stops36h 08m

$2,310

San AntonioTamuning

SAT - GUM

SATGUM

San Antonio

Fri 5/1

7:35 am-6:05 pm

2 stops19h 30m

Tamuning Guam Intl

Fri 5/8

7:30 pm-10:54 pm

3 stops42h 24m

$2,352
Quickest round-trip

San AntonioTamuning

SAT - GUM

SATGUM

San Antonio

Thu 4/23

6:12 am-6:05 pm

2 stops20h 53m

Tamuning Guam Intl

Thu 4/30

7:05 am-4:57 pm

2 stops24h 52m

$2,429

San AntonioTamuning

SAT - GUM

SATGUM

San Antonio

Fri 6/12

6:31 am-11:55 pm

2 stops26h 24m

Tamuning Guam Intl

Thu 6/18

2:00 am-12:30 am

2 stops37h 30m

$2,565

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first
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Cheap San Antonio to Guam flight deals and tips

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

Fastest flight time

26h 16m

Direct flights

None
The fastest flight from San Antonio to Guam takes 26h 16m
There are no direct flights from San Antonio to Guam. There are no popular flight routes from San Antonio to Guam.
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Frequently asked questions about flying from San Antonio to Guam

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

    Prices for flights from San Antonio Airport to Guam refresh daily.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from San Antonio Airport to Guam.

  • What documentation or ID do you need to fly to Guam?

    The travel and health documents required for your trip to Guam 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 Guam. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from San Antonio to Guam

Compare and see reviews for airlines that fly from San Antonio to Guam with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $1,471Free CancellationRating
7.4
9,533 reviews
Search United Airlines flights

Frequently asked questions about flying from San Antonio to Guam

  • How do I get Price Alerts for flights from San Antonio to Guam?

    Search flight deals from San Antonio to Guam. While viewing offers you’ll have the option to create a Price Alert.

  • How can I save money on flights from San Antonio to Guam with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from San Antonio to Guam for you.

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

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

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

Once you have performed a search for San Antonio to Guam flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are simply researching potential flights to Guam, momondo offers a useful price alert feature which will track prices for flights to Guam from San Antonio and alert you when they change.

An easier way to manage your Guam trip

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