How long is the flight from Houston to Guam?

Departing from Houston to Guam will take you 21h 05m. There are 7431 mi between Houston and Guam. This flight may include one or multiple stops.

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 HOU to GU?

When flying from Houston to Guam, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

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

How can I find direct flights from Houston to Guam?

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

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

Yes. Cheapflights offers flight deals from Houston 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.

$1,833+ Flights from Houston to Guam

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Cheap flight deals from Houston to Guam

Round-trip from	$1,833 (Delta)

From Houston to Guam

Search Deals

Find flight deals from Houston to Guam

Cheapest flights from Houston to Guam
Explore the most affordable flight options available from Houston to Guam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2025.

Wed 12/106:00 amIAH - GUM

2 stops20h 50mUnited Airlines

Tue 12/307:40 amGUM - IAH

2 stops22h 00mUnited Airlines

Deal found 11/19

$2,478

Tue 11/257:50 pmIAH - GUM

2 stops31h 00mUnited Airlines

Sun 11/307:20 pmGUM - IAH

2 stops41h 30mUnited Airlines

Deal found 11/19

$2,852

Mon 11/246:01 amIAH - GUM

2 stops20h 49mUnited Airlines

Wed 11/267:40 amGUM - IAH

2 stops22h 41mUnited Airlines

Deal found 11/20

$3,128

Best flights from Houston to Guam
Discover carefully curated flight deals from Houston to Guam that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 21, 2025.

Thu 3/1211:50 amIAH - GUM

2 stops44h 15mDelta

Wed 3/181:00 amGUM - IAH

2 stops46h 51mDelta

Deal found 11/19

$1,833

Tue 2/36:00 amIAH - GUM

2 stops21h 05mUnited Airlines

Tue 2/177:40 amGUM - IAH

2 stops21h 58mUnited Airlines

Deal found 11/21

$1,918

Thu 3/126:00 amHOU - GUM

2 stops41h 35mDelta

Thu 3/194:50 pmGUM - HOU

2 stops55h 42mDelta

Deal found 11/19

$1,898

Tue 1/209:40 amIAH - GUM

1 stop17h 25mUnited Airlines

Wed 4/227:05 amGUM - IAH

2 stops21h 18mUnited Airlines

Deal found 11/20

$1,918

Thu 3/1210:05 amIAH - GUM

1 stop17h 45mUnited Airlines

Thu 3/197:25 amGUM - IAH

1 stop16h 12mUnited Airlines

Deal found 11/19

$1,918

Fri 3/135:35 pmHOU - GUM

2 stops38h 30mDelta

Thu 3/261:00 amGUM - HOU

2 stops35h 46mDelta

Deal found 11/18

$1,933

Fri 3/136:00 pmIAH - GUM

2 stops29h 35mDelta

Thu 3/261:00 amGUM - IAH

2 stops37h 59mDelta

Deal found 11/18

$1,933

Mon 1/269:33 pmIAH - GUM

2 stops29h 32mUnited Airlines

Sun 7/197:30 pmGUM - IAH

2 stops40h 40mUnited Airlines

Deal found 11/19

$1,992

Last-minute flights from Houston to Guam
Discover last-minute flight deals from Houston to Guam. Data last updated November 21, 2025 and is based on user searches.

Mon 11/246:01 amIAH - GUM

2 stops20h 49mUnited Airlines

Wed 11/267:40 amGUM - IAH

2 stops22h 41mUnited Airlines

Deal found 11/20

$3,128

Tue 11/259:35 amIAH - GUM

1 stop17h 15mUnited Airlines

Sun 11/307:20 pmGUM - IAH

2 stops40h 50mUnited Airlines

Deal found 11/19

$2,852

Wed 12/106:00 amIAH - GUM

2 stops20h 50mUnited Airlines

Tue 12/307:40 amGUM - IAH

1 stop16h 24mUnited Airlines

Deal found 11/19

$2,478

Fly from

Fly to

Route

Depart

Return

Price

HoustonTamuning

IAH - GUM

IAHGUM

Houston George Bush Intcntl

Thu 3/12

11:50 am-11:05 pm

2 stops44h 15m

Tamuning Guam Intl

Wed 3/18

1:00 am-8:51 am

2 stops46h 51m

$1,833

HoustonTamuning

HOU - GUM

HOUGUM

Houston Hobby

Thu 3/12

6:00 am-2:35 pm

2 stops41h 35m

Tamuning Guam Intl

Thu 3/19

4:50 pm-9:32 am

2 stops55h 42m

$1,898

HoustonTamuning

IAH - GUM

IAHGUM

Houston George Bush Intcntl

Tue 2/3

6:00 am-7:05 pm

2 stops21h 05m

Tamuning Guam Intl

Tue 2/17

7:40 am-1:38 pm

2 stops21h 58m

$1,918

HoustonTamuning

IAH - GUM

IAHGUM

Houston George Bush Intcntl

Tue 1/20

9:40 am-7:05 pm

1 stop17h 25m

Tamuning Guam Intl

Wed 4/22

7:05 am-1:23 pm

2 stops21h 18m

$1,918

HoustonTamuning

IAH - GUM

IAHGUM

Houston George Bush Intcntl

Thu 3/12

10:05 am-6:50 pm

1 stop17h 45m

Tamuning Guam Intl

Thu 3/19

7:25 am-8:37 am

1 stop16h 12m

$1,918

HoustonTamuning

HOU - GUM

HOUGUM

Houston Hobby

Fri 3/13

5:35 pm-11:05 pm

2 stops38h 30m

Tamuning Guam Intl

Thu 3/26

1:00 am-9:46 pm

2 stops35h 46m

$1,933

HoustonTamuning

IAH - GUM

IAHGUM

Houston George Bush Intcntl

Fri 3/13

6:00 pm-2:35 pm

2 stops29h 35m

Tamuning Guam Intl

Thu 3/26

1:00 am-11:59 pm

2 stops37h 59m

$1,933

HoustonTamuning

IAH - GUM

IAHGUM

Houston George Bush Intcntl

Mon 1/26

9:33 pm-7:05 pm

2 stops29h 32m

Tamuning Guam Intl

Sun 7/19

7:30 pm-9:10 pm

2 stops40h 40m

$1,992

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Best time to book a flight from Houston to Guam

Have a flexible travel schedule? Discover the best time to fly to Guam from Houston 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 Houston to Guam

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

Reviews of airlines servicing Guam

Read through reviews of airlines operating flights from Houston to Guam, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

9,029 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

9,029 reviews

United Airlines

7.4

Good

9,029 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

How long is the flight from Houston to Guam?
Departing from Houston to Guam will take you 21h 05m. There are 7431 mi between Houston and Guam. This flight may include one or multiple stops.
Can I find deals for flights from Houston to Guam that include hotel bookings?
Yes. In addition to deals on Houston to Guam flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Houston to Guam?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Houston to Guam.
Can I find deals for business class flights from Houston to Guam?
Yes. Cheapflights offers flight deals from Houston 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Houston 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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$1,833+ Cheap flights from Houston 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 3/12. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Houston 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 Houston to Guam

Keep the following information in mind while searching for Houston to Guam flight deals. Data was last updated November 21, 2025.

Round-trip from

Find flight deals from Houston to Guam

Cheapest flights from Houston to GuamExplore the most affordable flight options available from Houston to Guam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2025.

Explore the most affordable flight options available from Houston to Guam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Houston to Guam

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

Cheapflights Insights

Everything you need to know about your flight from Houston 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 21, 2025.

Read through reviews of airlines operating flights from Houston to Guam, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

How long is the flight from Houston to Guam?

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

How can I find direct flights from Houston to Guam?

Can I find deals for business class flights from Houston 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 Houston to Guam

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

Top airline flying from Houston to Guam

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Book with Flexibility

Travel Smart

Cheapest flights from Houston to Guam
Explore the most affordable flight options available from Houston to Guam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2025.