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Cheap flights from St. Louis to Guam from $1,918

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Guam departing on 2/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from St. Louis to Guam

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:00 am - 7:05 pm
STL
-
GUM
21h 05m2 stops
United Airlines Logo
7:40 am - 1:14 pm
GUM
-
STL
21h 34m2 stops
$1,918United Airlines
Mon, Feb 16 - Mon, Feb 23
United Airlines Logo
6:25 am - 6:50 pm
STL
-
GUM
21h 25m2 stops
United Airlines Logo
7:25 am - 11:34 pm
GUM
-
STL
31h 09m2 stops
$2,018United Airlines
Fri, Mar 13 - Fri, Mar 20
United Airlines Logo
6:25 am - 9:45 pm
STL
-
GUM
23h 20m3 stops
United Airlines Logo
7:40 am - 8:26 pm
GUM
-
STL
28h 46m2 stops
$2,099United Airlines
Mon, Feb 16 - Mon, Feb 23
Delta Logo
5:00 pm - 11:05 pm
STL
-
GUM
38h 05m2 stops
Delta Logo
1:00 am - 8:43 pm
GUM
-
STL
35h 43m2 stops
$2,158Delta
Sat, Jan 10 - Tue, Jan 27
Delta Logo
6:00 am - 11:05 pm
STL
-
GUM
25h 05m2 stops
Delta Logo
1:00 am - 11:25 pm
GUM
-
STL
38h 25m2 stops
$2,203Delta
Sun, Jan 11 - Sat, Jan 17
United Airlines Logo
6:00 am - 7:05 pm
STL
-
GUM
21h 05m2 stops
United Airlines Logo
7:40 am - 8:58 pm
GUM
-
STL
29h 18m2 stops
$2,278United Airlines
Mon, Jan 19 - Sat, Jan 24
United Airlines Logo
6:25 am - 9:45 pm
STL
-
GUM
23h 20m3 stops
United Airlines Logo
12:30 pm - 10:14 pm
GUM
-
STL
25h 44m3 stops
$2,454United Airlines
Mon, Feb 16 - Mon, Feb 23
United Airlines Logo
6:00 am - 7:05 pm
STL
-
GUM
21h 05m2 stops
United Airlines Logo
12:30 pm - 7:27 pm
GUM
-
STL
22h 57m3 stops
$2,554United Airlines
Sat, Jan 10 - Wed, Jan 28
United Airlines Logo
6:00 am - 7:05 pm
STL
-
GUM
21h 05m2 stops
United Airlines Logo
12:30 pm - 7:27 pm
GUM
-
STL
22h 57m3 stops
$2,604United Airlines
Sun, Jan 11 - Sun, Jan 18
United Airlines Logo
6:00 am - 9:45 pm
STL
-
GUM
24h 45m2 stops
United Airlines Logo
12:10 pm - 4:52 pm
GUM
-
STL
19h 42m2 stops
$4,153United Airlines
Tue, Mar 24 - Thu, Apr 2

United Airlines flights from St. Louis to Guam

Our best United Airlines deals on St. Louis to Guam flight tickets
United Airlines
Feb 16
STL6:00 amLambert-St Louis
21h 05m
2 stops
GUM7:05 pmTamuning Guam Intl
Feb 23
GUM7:40 amTamuning Guam Intl
21h 34m
2 stops
STL1:14 pmLambert-St Louis
$1,918
Find similar
United Airlines
Mar 13
STL6:25 amLambert-St Louis
21h 25m
2 stops
GUM6:50 pmTamuning Guam Intl
Mar 20
GUM7:25 amTamuning Guam Intl
31h 09m
2 stops
STL11:34 pmLambert-St Louis
$2,018
Find similar
United Airlines
Feb 16
STL6:25 amLambert-St Louis
23h 20m
3 stops
GUM9:45 pmTamuning Guam Intl
Feb 23
GUM7:40 amTamuning Guam Intl
28h 46m
2 stops
STL8:26 pmLambert-St Louis
$2,099
Find similar

Delta flights from St. Louis to Guam

Our best Delta deals on St. Louis to Guam flight tickets
Delta
Jan 10
STL5:00 pmLambert-St Louis
38h 05m
2 stops
GUM11:05 pmTamuning Guam Intl
Jan 27
GUM1:00 amTamuning Guam Intl
35h 43m
2 stops
STL8:43 pmLambert-St Louis
$2,158
Find similar
Delta
Jan 11
STL6:00 amLambert-St Louis
25h 05m
2 stops
GUM11:05 pmTamuning Guam Intl
Jan 17
GUM1:00 amTamuning Guam Intl
38h 25m
2 stops
STL11:25 pmLambert-St Louis
$2,203
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 December 16, 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

Mon 2/16

6:00 am-7:05 pm

2 stops21h 05m

Tamuning Guam Intl

Mon 2/23

7:40 am-1:14 pm

2 stops21h 34m

$1,918

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Fri 3/13

6:25 am-6:50 pm

2 stops21h 25m

Tamuning Guam Intl

Fri 3/20

7:25 am-11:34 pm

2 stops31h 09m

$2,018

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Mon 2/16

6:25 am-9:45 pm

3 stops23h 20m

Tamuning Guam Intl

Mon 2/23

7:40 am-8:26 pm

2 stops28h 46m

$2,099

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Sat 1/10

5:00 pm-11:05 pm

2 stops38h 05m

Tamuning Guam Intl

Tue 1/27

1:00 am-8:43 pm

2 stops35h 43m

$2,158

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Sun 1/11

6:00 am-11:05 pm

2 stops25h 05m

Tamuning Guam Intl

Sat 1/17

1:00 am-11:25 pm

2 stops38h 25m

$2,203

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Mon 1/19

6:00 am-7:05 pm

2 stops21h 05m

Tamuning Guam Intl

Sat 1/24

7:40 am-8:58 pm

2 stops29h 18m

$2,278

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Mon 2/16

6:25 am-9:45 pm

3 stops23h 20m

Tamuning Guam Intl

Mon 2/23

12:30 pm-10:14 pm

3 stops25h 44m

$2,454

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Sat 1/10

6:00 am-7:05 pm

2 stops21h 05m

Tamuning Guam Intl

Wed 1/28

12:30 pm-7:27 pm

3 stops22h 57m

$2,554

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Sun 1/11

6:00 am-7:05 pm

2 stops21h 05m

Tamuning Guam Intl

Sun 1/18

12:30 pm-7:27 pm

3 stops22h 57m

$2,604

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Tue 3/24

6:00 am-9:45 pm

2 stops24h 45m

Tamuning Guam Intl

Thu 4/2

12:10 pm-4:52 pm

2 stops19h 42m

$4,153

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

Fastest flight time

21h 05m

Direct flights

None
The fastest flight from St. Louis to Guam takes 21h 05m
There are no direct flights from St. Louis to Guam. There are no popular flight routes from St. Louis to Guam.
Search flight deals

  • 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 $888Free CancellationRating
7.4
9,092 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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Flights to Tamuningfrom $930