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Cheap flights from St. Louis to Guam from $552

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Guam departing on 9/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from St. Louis to Guam

Cheap round-trip flights

United Airlines Logo
11:20 am - 3:45 pmSTL-GUM
60h 25m2 stops
United Airlines Logo
7:25 am - 9:58 pmGUM-STL
30h 33m2 stops
$996United Airlines
Find Deal
Fri, Nov 28 - Tue, Dec 2
United Airlines Logo
5:29 pm - 3:45 pmSTL-GUM
54h 16m2 stops
United Airlines Logo
7:25 am - 12:39 pmGUM-STL
21h 14m2 stops
$999United Airlines
Find Deal
Fri, Nov 28 - Tue, Dec 2
United Airlines Logo
11:20 am - 3:45 pmSTL-GUM
60h 25m2 stops
United Airlines Logo
7:25 am - 4:04 pmGUM-STL
24h 39m2 stops
$1,156United Airlines
Find Deal
Fri, Nov 28 - Tue, Dec 2
United Airlines Logo
6:00 am - 7:05 pmSTL-GUM
21h 05m2 stops
United Airlines Logo
7:25 am - 7:03 pmGUM-STL
27h 38m2 stops
$1,917United Airlines
Find Deal
Wed, Feb 11 - Wed, Feb 25

United Airlines flights from St. Louis to Guam

Our best United Airlines deals on St. Louis to Guam flight tickets
United Airlines
Nov 28
STL11:20 amLambert-St Louis
60h 25m
2 stops
GUM3:45 pmTamuning Guam Intl
Dec 2
GUM7:25 amTamuning Guam Intl
30h 33m
2 stops
STL9:58 pmLambert-St Louis
$996
Find similar
United Airlines
Nov 28
STL5:29 pmLambert-St Louis
54h 16m
2 stops
GUM3:45 pmTamuning Guam Intl
Dec 2
GUM7:25 amTamuning Guam Intl
21h 14m
2 stops
STL12:39 pmLambert-St Louis
$999
Find similar
United Airlines
Nov 28
STL11:20 amLambert-St Louis
60h 25m
2 stops
GUM3:45 pmTamuning Guam Intl
Dec 2
GUM7:25 amTamuning Guam Intl
24h 39m
2 stops
STL4:04 pmLambert-St Louis
$1,156
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated August 25, 2025.
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

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Fri 11/28

11:20 am-3:45 pm

2 stops60h 25m

Tamuning Guam Intl

Tue 12/2

7:25 am-9:58 pm

2 stops30h 33m

$996

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-12:39 pm

2 stops21h 14m

$999

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Fri 11/28

11:20 am-3:45 pm

2 stops60h 25m

Tamuning Guam Intl

Tue 12/2

7:25 am-4:04 pm

2 stops24h 39m

$1,156

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Wed 2/11

6:00 am-7:05 pm

2 stops21h 05m

Tamuning Guam Intl

Wed 2/25

7:25 am-7:03 pm

2 stops27h 38m

$1,917

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Thu 9/4

6:00 am-2:00 am

3 stops53h 00m

$552

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Thu 9/4

10:20 am-3:15 pm

2 stops37h 55m

$1,547

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Guam from

How to get the cheapest flight ticket from St. Louis to Guam

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Guam?

The cheapest day to depart from St. Louis to Guam is on a Wednesday when prices can be found for as low as $2,016. Flights from St. Louis to Guam on a Sunday will generally be more expensive and average around $2,352. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Cheap St. Louis to Guam flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Guam

Direct flights

None
There are no direct flights from St. Louis to Guam. There are no popular flight routes from St. Louis to Guam.
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  • When did momondo last update prices for flights from Lambert-St Louis Airport to Guam?

    Prices for flights from Lambert-St Louis Airport to Guam refresh daily.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Guam?

  • How old do you have to be to fly from Lambert-St Louis Airport to Guam?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Guam.

  • What documentation or ID do you need to fly to Guam?

    The necessary travel and health documents for your Guam trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from St. Louis to Guam

Compare and see reviews for airlines that fly from St. Louis to Guam with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $948Free CancellationRating
7.4
8,940 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Guam?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Guam from St. Louis.

Can I find flights from St. Louis to Guam with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Guam from St. Louis with this policy.

How can momondo help me find flights from St. Louis to Guam?

momondo provides multiple filters to help you find the best flight to Guam from St. Louis. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from St. Louis to Guam right now. Can momondo alert me if prices change?

Yes. momondo can track prices for St. Louis to Guam flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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