$1,355 Find Cheap Flights from San Antonio to Guam - Compare and Save

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Book Cheap San Antonio to Guam Plane Tickets

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Antonio to Guam

Wed, Dec 2 - Sun, Dec 6
United Airlines Logo
2:18 pm - 3:45 pmSAT  San Antonio-GUM Tamuning Guam Intl
57h 27m2 stops Houston George Bush Intcntl Tokyo Narita
United Airlines Logo
7:45 am - 1:06 pmGUM  Tamuning Guam Intl-SAT San Antonio
21h 21m2 stops Honolulu Houston George Bush Intcntl
$1,355United Airlines
Wed, Dec 2 - Sun, Dec 6
United Airlines Logo
4:10 pm - 3:45 pmSAT  San Antonio-GUM Tamuning Guam Intl
55h 35m2 stops Houston George Bush Intcntl Tokyo Narita
United Airlines Logo
7:45 am - 3:48 pmGUM  Tamuning Guam Intl-SAT San Antonio
24h 03m2 stops Honolulu Houston George Bush Intcntl
$1,405United Airlines
Wed, Dec 2 - Sun, Dec 6
United Airlines Logo
2:18 pm - 3:45 pmSAT  San Antonio-GUM Tamuning Guam Intl
57h 27m2 stops Houston George Bush Intcntl Tokyo Narita
United Airlines Logo
7:45 am - 1:06 pmGUM  Tamuning Guam Intl-SAT San Antonio
21h 21m2 stops Honolulu Houston George Bush Intcntl
$1,405United Airlines
Wed, Dec 2 - Sun, Dec 6
United Airlines Logo
9:41 am - 3:45 pmSAT  San Antonio-GUM Tamuning Guam Intl
62h 04m2 stops Houston George Bush Intcntl Tokyo Narita
United Airlines Logo
7:45 am - 7:20 pmGUM  Tamuning Guam Intl-SAT San Antonio
27h 35m2 stops Honolulu Houston George Bush Intcntl
$1,548United Airlines
Wed, Dec 2 - Sun, Dec 6
United Airlines Logo
9:41 am - 3:45 pmSAT  San Antonio-GUM Tamuning Guam Intl
62h 04m2 stops Houston George Bush Intcntl Tokyo Narita
United Airlines Logo
7:45 am - 7:20 pmGUM  Tamuning Guam Intl-SAT San Antonio
27h 35m2 stops Honolulu Houston George Bush Intcntl
$1,725United Airlines
Mon, Apr 5 - Wed, Apr 14
Delta Logo
4:25 pm - 11:55 pmSAT  San Antonio-GUM Tamuning Guam Intl
40h 30m2 stops Atlanta Hartsfield-Jackson Incheon Intl
Delta Logo
5:20 pm - 3:10 pmGUM  Tamuning Guam Intl-SAT San Antonio
36h 50m2 stops Incheon Intl Detroit Metropolitan Wayne County
$1,917Delta
Mon, Feb 1 - Sun, Feb 7
Delta Logo
7:35 am - 3:05 pmSAT  San Antonio-GUM Tamuning Guam Intl
39h 30m2 stops Salt Lake City Incheon Intl
Delta Logo
2:40 am - 10:31 pmGUM  Tamuning Guam Intl-SAT San Antonio
35h 51m2 stops Incheon Intl Atlanta Hartsfield-Jackson
$1,917Delta
Mon, Apr 5 - Wed, Apr 14
United Airlines Logo
5:00 pm - 6:05 pmSAT  San Antonio-GUM Tamuning Guam Intl
34h 05m3 stops Chicago O'Hare Intl Newark Honolulu
United Airlines Logo
7:10 am - 1:03 pmGUM  Tamuning Guam Intl-SAT San Antonio
20h 53m2 stops Honolulu Houston George Bush Intcntl
$1,919United Airlines
Mon, Mar 29 - Thu, Apr 8
Delta Logo
8:00 am - 11:55 pmSAT  San Antonio-GUM Tamuning Guam Intl
24h 55m2 stops Salt Lake City Incheon Intl
Delta Logo
3:00 am - 12:45 amGUM  Tamuning Guam Intl-SAT San Antonio
36h 45m2 stops Incheon Intl Salt Lake City
$1,955Delta
Mon, Mar 29 - Fri, Apr 9
United Airlines Logo
5:00 pm - 6:05 pmSAT  San Antonio-GUM Tamuning Guam Intl
34h 05m3 stops Chicago O'Hare Intl Newark Honolulu
United Airlines Logo
7:10 am - 5:33 pmGUM  Tamuning Guam Intl-SAT San Antonio
25h 23m2 stops Honolulu Houston George Bush Intcntl
$1,969United Airlines
Booking Insights

Price, demand and travel trends for San Antonio to Guam flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

What are the cheapest fares from San Antonio to Guam right now?

The cheapest fare from San Antonio to Guam in the last week was $1,355 round-trip, to Tamuning Guam Intl (GUM).

Which airport in Guam is the cheapest to fly to from San Antonio?

All flights from San Antonio to Guam arrive at Tamuning Guam Intl (GUM). On average, round-trip fares are around $2,214.

What’s the cheapest day to fly from San Antonio to Guam?

Wednesday tends to be the cheapest day to fly from San Antonio to Guam, while Monday is the most expensive. Fares run about 65% higher that day, based on the past 12 months of KAYAK data.

What's the cheapest time of day to fly from San Antonio to Guam?

Data from the past 12 months shows it's cheapest to fly to Guam during the morning with average prices of $2,214. The evening is the most expensive time to fly, with average prices of $3,111.

Find deals

Key details for San Antonio to Guam flights

Low season

February

Cheapest flight

$1,355
Beat the crowds with an average 59% drop in travelers.
The most popular month to fly with an average 49% increase in travelers.
Round-trip flight from San Antonio to Tamuning

Your San Antonio to Guam flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Is now a good time to book a flight from San Antonio to Guam?

    Yes. Fares from San Antonio to Guam are low right now. As a rule of thumb, a round-trip under $2,018 (cheaper than most fares this year) is a good deal, so if you spot one at or below that, it's a good time to book.

  • How much should I budget for a flight from San Antonio to Guam?

    Over the past 12 months, round-trip fares from San Antonio to Guam have ranged from $2,018 to $2,892.

  • What are the main airports serving Guam?

    Flights to Guam all arrive at Tamuning Guam Intl (GUM).

  • Which cabin classes are available on flights from San Antonio to Guam?

    On flights from San Antonio to Guam you can only book Economy Class.

  • What are some popular landmarks in Guam?

    KAYAK travelers' favorite landmarks in Guam include:

    • Tumon Bay
    • Dusit Thani Guam Resort and Convention Center

Your guide to booking San Antonio to Guam flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your travel dates are flexible, book your trip for September when flights are typically cheapest and avoid January when prices are at their highest.
  • Flying on Wednesday is usually the cheapest. Flights on Monday cost about 65% more on average, so being flexible with your travel dates could help you save.
  • Start your trip in Tamuning, which is the most popular destination in Guam. From there, it's easy to continue on to other popular destinations such as Yona, Dededo and Barrigada.

Reviews of the top airline flying from San Antonio to Guam

 
Need help choosing which airline to fly with from San Antonio to Guam? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.3
United AirlinesOverall score based on 10476 reviews
7.7Boarding
8.1Crew
7.3Comfort
7.1Entertainment
6.7Food
Airline reviews

Just having a little bit more legroom would've been nice.

8.0 ExcellentIsabella, Sep 2026
Read more United Airlines reviews

Just having a little bit more legroom would've been nice.

Awful. Delayed flights, missed connection to Toronto. Hotel vouchers were for already booked hotels x3. Giant waste of my time

The entertainment is a bit limited, it would be better if they added some games to play besides the movies and tv shows. But the seats are comfortable and the crew is polite

The pilot had to extend the flight time from san antonio to Houston to burn off fuel. This caused a lot of unnecessary stress since we had a tight connection to Aruba. And with no other flights going to Aruba we were worried about spending a night in Houston. We had to to run to our connection because of the flight crews mistake. Not happy.

Fine. The issues I had were associated with luggage being delayed from Turkey to Tanzania

Do not like the size of the overhead bin. I think staff should monitor the size of suitcases that are being carried on by passengers to ensure they meet the size requirement.

Flight was good and crew was super polite. However, there were around 5 kids screaming the WHOLE 2 hours. I understand kids have to come but parents need to do something to control their children. They make the experience terrible, especially after finishing 16 hour shifts at the hospital I needed some sleep, which I did not get.

Gate agent did not hold flight for connection, provided no assistance to get new flight

Nothing they cancelled my connection and couldn't get me on a flight for 3 more days

The plane was dirty and the in seat air wasn't blowing as planes usually do.

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