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Guam

$560+ Cheap flights from St. Louis (STL) to Guam

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
STL — GUM
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
1 adult, Economy
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Cheap flight deals from St. Louis to Guam

Keep the following information in mind while searching for St. Louis to Guam flight deals. Data was last updated August 20, 2025.

Round-trip from

$999
(United Airlines)

One-way from

$560
(Kiwi.com)

Popular in

December

Cheapest in

November
From Lambert-St Louis to Guam
Search Deals
One-way flight from Lambert-St Louis to Guam
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($69 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($40 potential savings vs. average RT price).
Search Deals

Find flight deals from St. Louis to Guam

Cheapest flights from St. Louis to Guam
Explore the most affordable flight options available from St. Louis to Guam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2025.

This United Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/285:29 pmSTL - GUM
2 stops54h 16mUnited Airlines
Tue 12/27:25 amGUM - STL
2 stops21h 14mUnited Airlines
Deal found 8/18$999
This United Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:00 amSTL - GUM
2 stops21h 00mUnited Airlines
Wed 1/147:25 amGUM - STL
2 stops30h 41mUnited Airlines
Deal found 8/18$2,017
This United Airlines deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2011:06 amSTL - GUM
2 stops61h 44mUnited Airlines
Fri 10/247:10 amGUM - STL
2 stops24h 44mUnited Airlines
Deal found 8/19$2,023
This United Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:00 amSTL - GUM
2 stops21h 00mUnited Airlines
Sun 1/115:00 pmGUM - STL
2 stops41h 03mUnited Airlines
Deal found 8/18$2,053
This United Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:00 amSTL - GUM
2 stops21h 00mUnited Airlines
Sat 1/107:25 amGUM - STL
2 stops25h 10mUnited Airlines
Deal found 8/18$2,067
This United Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/186:41 amSTL - GUM
2 stops44h 19mUnited Airlines
Tue 1/67:25 amGUM - STL
2 stops29h 34mUnited Airlines
Deal found 8/18$2,095
This Delta deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/72:25 pmSTL - GUM
2 stops42h 45mDelta
Sun 9/215:00 pmGUM - STL
2 stops45h 09mDelta
Deal found 8/20$2,108
This Delta deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/143:36 pmSTL - GUM
2 stops32h 39mDelta
Sun 9/215:00 pmGUM - STL
2 stops45h 09mDelta
Deal found 8/18$2,153
This United Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/226:15 amSTL - GUM
2 stops28h 30mUnited Airlines
Sun 8/247:15 amGUM - STL
2 stops24h 18mUnited Airlines
Deal found 8/18$2,284

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Guam that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 20, 2025.
Use the filters below to find and compare flights from St. Louis to Guam that are best for you.

Fly from

St. Louis

Fly to

Guam

Route

Depart

Return

Price

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Fri 11/28

5:29 pm-3:45 pm

2 stops54h 16m

Tamuning Guam Intl

Tue 12/2

7:25 am-4:28 pm

2 stops25h 03m

$999

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Wed 12/31

6:00 am-7:00 pm

2 stops21h 00m

Tamuning Guam Intl

Thu 1/15

7:25 am-4:35 pm

2 stops25h 10m

$2,017

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Mon 1/5

6:00 am-7:00 pm

2 stops21h 00m

Tamuning Guam Intl

Mon 1/12

7:25 am-12:43 pm

2 stops21h 18m

$2,017

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Tue 12/30

6:00 am-7:00 pm

2 stops21h 00m

Tamuning Guam Intl

Wed 1/14

7:25 am-10:06 pm

2 stops30h 41m

$2,017

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Mon 1/5

6:00 am-7:00 pm

2 stops21h 00m

Tamuning Guam Intl

Tue 1/13

7:25 am-4:35 pm

2 stops25h 10m

$2,017

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Thu 1/1

6:00 am-7:00 pm

2 stops21h 00m

Tamuning Guam Intl

Thu 1/15

7:25 am-10:06 pm

2 stops30h 41m

$2,017

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Thu 1/1

6:00 am-7:00 pm

2 stops21h 00m

Tamuning Guam Intl

Wed 1/14

7:25 am-4:26 pm

2 stops25h 01m

$2,017

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Wed 12/31

6:00 am-7:00 pm

2 stops21h 00m

Tamuning Guam Intl

Mon 1/12

7:25 am-8:59 pm

2 stops29h 34m

$2,017

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Mon 1/5

6:00 am-7:00 pm

2 stops21h 00m

Tamuning Guam Intl

Thu 1/15

7:25 am-8:59 pm

2 stops29h 34m

$2,017

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Tue 12/30

6:00 am-7:00 pm

2 stops21h 00m

Tamuning Guam Intl

Mon 1/12

7:25 am-4:35 pm

2 stops25h 10m

$2,017

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/19

Showing 1-10 of 13 results
1
2

Best time to book a flight from St. Louis to Guam

Have a flexible travel schedule? Discover the best time to fly to Guam from St. Louis 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 St. Louis to Guam
No data available for this route at this time. Please check back soon.

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 August 20, 2025.
See what other customers who have flown with United Airlines from St. Louis to Guam have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,928 reviews

Overall

7.4

Comfort

7.3

Entertainment

7.1

Crew

8.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,928 reviews
United Airlines
7.4
Good
8,928 reviews

Overall

7.4

Comfort

7.3

Entertainment

7.1

Crew

8.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

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

  • What airport do you fly from for flights from St. Louis to Guam?

    If you book a flight to Guam from St. Louis, you will be flying from Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis.

  • How long is the flight from St. Louis to Guam?

    Airlines like United Airlines fly from St. Louis to Guam in about 54h 16m. The time it takes to get you to your destination can typically vary by up to . The distance between St. Louis and Guam is about 7367 mi.

  • Can I find deals for flights from St. Louis to Guam that include hotel bookings?

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

  • How can I find direct flights from St. Louis to Guam?

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

  • Can I find deals for business class flights from St. Louis to Guam?

    Yes. Cheapflights offers flight deals from St. Louis 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.

  • What is the cheapest month to book a flight from St. Louis to Guam?

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Guam (average of $1,977). Flying from St. Louis to Guam in May is currently the most expensive (average of $2,214). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top airline flying from St. Louis to Guam

Discover the top airline that operate flights from St. Louis to Guam. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$948Average$2,317FlexibilityNo cancel feeOn-time69%

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