$2,278 Find Cheap Flights from San Antonio to Guam

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Antonio to Guam departing on 12/26. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Flight Deals

Book Cheap San Antonio to Guam Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Antonio to Guam that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Antonio to Guam

Sun, Jan 18 - Fri, Jan 23
United Airlines Logo
2:05 pm - 7:05 pm
SAT
-
GUM
37h 00m3 stops
United Airlines Logo
7:40 am - 1:08 pm
GUM
-
SAT
21h 28m2 stops
$2,278United Airlines
Sun, Jan 18 - Fri, Jan 23
United Airlines Logo
4:04 pm - 7:05 pm
SAT
-
GUM
35h 01m2 stops
United Airlines Logo
7:40 am - 1:09 pm
GUM
-
SAT
21h 29m2 stops
$2,304United Airlines
Mon, Jan 19 - Fri, Jan 23
United Airlines Logo
7:29 am - 9:45 pm
SAT
-
GUM
22h 16m2 stops
United Airlines Logo
7:40 am - 3:31 pm
GUM
-
SAT
23h 51m2 stops
$3,434United Airlines
Sun, Jan 18 - Fri, Jan 23
United Airlines Logo
5:25 am - 9:45 pm
SAT
-
GUM
24h 20m2 stops
United Airlines Logo
7:40 am - 10:47 am
GUM
-
SAT
19h 07m2 stops
$3,484United Airlines
Mon, Jan 19 - Fri, Jan 23
United Airlines Logo
7:29 am - 9:45 pm
SAT
-
GUM
22h 16m2 stops
United Airlines Logo
12:30 pm - 7:41 pm
GUM
-
SAT
23h 11m3 stops
$3,689United Airlines
Sun, Jan 18 - Fri, Jan 23
United Airlines Logo
7:40 am - 9:45 pm
SAT
-
GUM
22h 05m2 stops
United Airlines Logo
12:30 pm - 7:41 pm
GUM
-
SAT
23h 11m3 stops
$3,739United Airlines
Booking Insights

KAYAK's insights & trends for San Antonio to Guam flights

Get data-powered insights and trends into flights from San Antonio to Guam to help you find the cheapest flights, the best time to fly and much more.

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

The average price of all round-trip flights from San Antonio to Guam clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from San Antonio to Guam, look for departures on Mondays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from Guam, Friday is the cheapest day to fly and Sunday is the most expensive.

Good to know

Low seasonSeptember
Cheapest flight$962
Best time to beat the crowds with an average 40% drop in price.
Most popular time to fly and prices are also 9% lower on average.
Flight from San Antonio to Tamuning

FAQs - booking Guam flights

  • How does KAYAK find such low prices on flights from San Antonio to Guam?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Antonio to Guam.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Antonio to Guam?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from San Antonio to Guam is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Antonio to Guam?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from San Antonio to Guam with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Antonio to Guam?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from San Antonio to Guam up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Guam?

    The cheapest time of day to fly to Guam is generally in the evening, when round-trip flights cost $2,094 on average. Morning departures are around 12% more expensive than evening flights, on average. The most expensive time of day to fly to Guam is generally in the morning, which is peak travel time and where the average cost of a ticket is $2,356.

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.
7.4
United AirlinesOverall score based on 9091 reviews
7.1Entertainment
6.6Food
8.1Crew
7.7Boarding
7.3Comfort
Airline reviews

Seats had less pitch than a regional jet. Food was OK. Have to buy alcohol on US based carriers flying international. Boarding was a mess. Did not have bags but overhead space was gone quick. Would like to see the airlines enforce the one bag over and one bag under policy

6.0 GoodAnonymous, Nov 2025
IAH - MEX
Read more United Airlines reviews

Seats had less pitch than a regional jet. Food was OK. Have to buy alcohol on US based carriers flying international. Boarding was a mess. Did not have bags but overhead space was gone quick. Would like to see the airlines enforce the one bag over and one bag under policy

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Crew was excellent. This was a relatively long flight though and had very little leg room, and no entertainment.

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

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.

Plane was crowded and even when we hit altitude, the plane was hot, not enough air flow.

Flight was delayed and missed my connection Lufthansa didn’t respond.

the delay for 3 hours was understandable due to weather conditions but the flight should’ve provided some on flight compensations or at least provide more food.

United could have one single once of customer service. No human United employee would help me with the invalid mileage plus number, they said I had to speak with the computer.

A little bit more leg room in premium economy. I am 6’4”.

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

Information on your arrival and departure airports