HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Guam

$1,988+ Cheap flights from St. Louis (STL) 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 10/17. Fares are subject to change and may not be available on all flights or dates of travel.
STL — GUM
May 23 — May 301
Sat 5/23
Sat 5/30
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from St. Louis to Guam with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 April 23, 2026.

This United Airlines deal was found by Cheapflights users on 4/19. 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.
Sat 10/178:35 am
STL
-
GUM
2 stops64h 15m
United Airlines
Wed 10/217:10 am
GUM
-
STL
2 stops24h 51m
United Airlines
Deal found 4/19$1,988
This United Airlines deal was found by Cheapflights users on 4/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/121:36 pm
STL
-
GUM
2 stops61h 29m
United Airlines
Mon 9/217:10 am
GUM
-
STL
2 stops41h 59m
United Airlines
Deal found 4/20$2,018
This United Airlines deal was found by Cheapflights users on 4/18. 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 7/105:10 am
STL
-
GUM
2 stops25h 35m
United Airlines
Sun 8/307:30 pm
GUM
-
STL
2 stops42h 30m
United Airlines
Deal found 4/18$2,111
This United Airlines deal was found by Cheapflights users on 4/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/226:00 am
STL
-
GUM
2 stops21h 05m
United Airlines
Mon 6/297:05 am
GUM
-
STL
2 stops26h 12m
United Airlines
Deal found 4/20$2,182
This United Airlines deal was found by Cheapflights users on 4/21. 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 4/237:05 pm
STL
-
GUM
2 stops32h 00m
United Airlines
Wed 5/277:05 am
GUM
-
STL
2 stops22h 11m
United Airlines
Deal found 4/21$2,211
This Delta deal was found by Cheapflights users on 4/21. 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.
Tue 5/196:57 pm
STL
-
GUM
2 stops29h 38m
Delta
Mon 5/252:00 am
GUM
-
STL
2 stops26h 10m
Delta
Deal found 4/21$2,429
This United Airlines deal was found by Cheapflights users on 4/19. 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.
Sun 5/178:46 am
STL
-
GUM
2 stops42h 19m
United Airlines
Sun 5/247:30 pm
GUM
-
STL
2 stops37h 47m
United Airlines
Deal found 4/19$2,492
This United Airlines deal was found by Cheapflights users on 4/18. 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.
Sat 5/164:15 pm
STL
-
GUM
2 stops58h 50m
United Airlines
Tue 5/267:30 pm
GUM
-
STL
2 stops37h 47m
United Airlines
Deal found 4/18$2,494

Find 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 April 23, 2026.

Round-trip from

$1,988
(United Airlines)
From Lambert-St Louis to Guam
Search Deals

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 April 23, 2026.
Use the filters below to find and compare flights from St. Louis to Guam that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Sat 10/17

8:35 am-3:50 pm

2 stops64h 15m

Tamuning Guam Intl

Wed 10/21

7:10 am-5:01 pm

2 stops24h 51m

$1,988

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Sat 9/12

1:36 pm-6:05 pm

2 stops61h 29m

Tamuning Guam Intl

Mon 9/21

7:10 am-3:38 pm

3 stops47h 28m

$2,035
Quickest round-trip

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Tue 5/19

6:57 pm-3:35 pm

2 stops29h 38m

Tamuning Guam Intl

Mon 5/25

2:00 am-1:10 pm

2 stops26h 10m

$2,429

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Sun 5/17

8:46 am-6:05 pm

2 stops42h 19m

Tamuning Guam Intl

Sun 5/24

7:30 pm-6:17 pm

2 stops37h 47m

$2,492

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Sat 5/16

4:15 pm-6:05 pm

2 stops58h 50m

Tamuning Guam Intl

Tue 5/26

7:30 pm-6:17 pm

2 stops37h 47m

$2,494

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/19

Sorted by cheapest first

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.

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 64h 15m. 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.

See more FAQs

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.