$1,007 Find Cheap Flights from San Antonio to Guam

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Antonio to Guam departing on 4/18. 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

Sat, Apr 18 - Tue, Apr 21
United Airlines Logo
1:42 pm - 9:45 pmSAT-GUM
41h 03m2 stops
United Airlines Logo
7:05 am - 4:30 pmGUM-SAT
24h 25m2 stops
$1,007United Airlines
Find Deal
Sat, Apr 18 - Tue, Apr 21
United Airlines Logo
4:20 pm - 9:15 pmSAT-GUM
37h 55m2 stops
United Airlines Logo
7:05 am - 9:07 pmGUM-SAT
29h 02m2 stops
$1,085United Airlines
Find Deal
Mon, Dec 8 - Mon, Dec 29
United Airlines Logo
7:47 am - 6:50 pmSAT-GUM
19h 03m2 stops
United Airlines Logo
7:40 am - 1:12 pmGUM-SAT
21h 32m2 stops
$2,293United Airlines
Find Deal
Mon, Dec 8 - Sun, Dec 28
Delta Logo
6:25 am - 2:35 pmSAT-GUM
40h 10m2 stops
Delta Logo
1:00 am - 9:53 pmGUM-SAT
36h 53m2 stops
$2,320Delta
Find Deal
Fri, Dec 12 - Fri, Dec 19
United Airlines Logo
7:47 am - 6:50 pmSAT-GUM
19h 03m2 stops
United Airlines Logo
7:40 am - 9:00 pmGUM-SAT
29h 20m2 stops
$2,393United Airlines
Find Deal
Fri, Dec 12 - Fri, Dec 19
United Airlines Logo
7:47 am - 6:50 pmSAT-GUM
19h 03m2 stops
United Airlines Logo
7:40 am - 11:59 pmGUM-SAT
56h 19m3 stops
$2,437United Airlines
Find Deal
Fri, Dec 12 - Thu, Dec 18
Delta Logo
6:25 am - 2:35 pmSAT-GUM
40h 10m2 stops
Delta Logo
1:00 am - 9:25 pmGUM-SAT
36h 25m2 stops
$2,920Delta
Find Deal
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$1,007
Best time to beat the crowds with an average 40% drop in price.
Most popular time to fly and prices are also 8% 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 8999 reviews
7.3Comfort
6.6Food
7.1Entertainment
7.7Boarding
8.1Crew
Airline reviews

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.

4.0 OkayNicole, Oct 2025IAH - MCI
Read more United Airlines reviews

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”.

Overall it was good. I missed my connection but I was put on another flight.

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

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