In terms of precipitation, rainfall in Guam ranges from 2.6 - 14.4 inches per month. August is typically the wettest month, when rainfall can reach 14.4 in. March is typically the driest time to visit Guam when rainfall is around 2.6 in.

If weather is an important factor for your trip to Guam, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 80.6 F).

What is the cheapest time of day to fly from G4L to GU?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Galveston to Guam as you normally would.

Can I find deals for flights from Galveston to Guam that include hotel bookings?

Yes. In addition to deals on Galveston to Guam flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Galveston to Guam?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Galveston to Guam.

Can I find deals for business class flights from Galveston to Guam?

Yes. Cheapflights offers flight deals from Galveston to Guam by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$2,533+ Flights from Galveston to Guam

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Cheap flight deals from Galveston to Guam

Round-trip from	$2,719 (Delta)
Popular in	December
Cheapest in	September
Average price	$1,994

From Galveston to Guam

Search Deals

Highest demand for flights based on searches. 5% potential increase in price ($150 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($77 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in November 2025

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Cheapest flights from Galveston to Guam
Explore the most affordable flight options available from Galveston to Guam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 3, 2025.

Tue 11/410:13 amHOU - GUM

2 stops44h 52mDelta

Tue 11/254:50 pmGUM - HOU

2 stops46h 17mDelta

Deal found 11/3

$2,533

Last-minute flights from Galveston to Guam
Discover last-minute flight deals from Galveston to Guam. Data last updated November 3, 2025 and is based on user searches.

Tue 11/410:13 amHOU - GUM

2 stops44h 52mDelta

Tue 11/254:50 pmGUM - HOU

2 stops46h 17mDelta

Deal found 11/3

$2,533

One-way flights from Galveston to Guam
Search for one-way flight options from Galveston to Guam. Find affordable one-way fares based on user searches. Data last updated November 3, 2025.

Mon 1/265:04 pmHOU - GUM

2 stops38h 01mDelta

Deal found 11/2

$8,835

Fly from

Fly to

Route

Depart

Return

Price

HoustonTamuning

HOU - GUM

HOUGUM

Houston Hobby

Mon 1/26

5:04 pm-11:05 pm

2 stops38h 01m

$8,835

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

Best time to book a flight from Galveston to Guam

Have a flexible travel schedule? Discover the best time to fly to Guam from Galveston with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Galveston to Guam

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Guam

Peruse reviews from past customers who have flown with United Airlines from Galveston to Guam to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

8,997 reviews

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

United Airlines

7.4

Good

8,997 reviews

United Airlines

7.4

Good

8,997 reviews

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Related info for your journey

Can I find deals for flights from Galveston to Guam that include hotel bookings?
Yes. In addition to deals on Galveston to Guam flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Galveston to Guam?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Galveston to Guam.
Can I find deals for business class flights from Galveston to Guam?
Yes. Cheapflights offers flight deals from Galveston to Guam by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Galveston to Guam

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$1,917	Average$2,206	FlexibilityNo cancel fee	On-time69%

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$2,533+ Cheap flights from Galveston, TX to Guam

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/4. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Galveston to Guam with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Galveston to Guam

Keep the following information in mind while searching for Galveston to Guam flight deals. Data was last updated November 3, 2025.

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from Galveston to Guam

Cheapest flights from Galveston to GuamExplore the most affordable flight options available from Galveston to Guam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 3, 2025.

Explore the most affordable flight options available from Galveston to Guam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 3, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Galveston to Guam that are best for you.

Best time to book a flight from Galveston to Guam

Have a flexible travel schedule? Discover the best time to fly to Guam from Galveston with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Galveston to Guam

Reviews of airlines servicing Guam

Get insights into the airlines that provide service to Guam. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Guam. Reviews last updated November 3, 2025.

Peruse reviews from past customers who have flown with United Airlines from Galveston to Guam to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Galveston to Guam. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

Can I find deals for flights from Galveston to Guam that include hotel bookings?

How can I find direct flights from Galveston to Guam?

Can I find deals for business class flights from Galveston to Guam?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Galveston to Guam

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Galveston to Guam

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Galveston to Guam
Explore the most affordable flight options available from Galveston to Guam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 3, 2025.