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Cheap flights from St. Louis to Tamuning from $1,360

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 Tamuning 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.
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Find the cheapest flights from St. Louis to Tamuning

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:25 pm - 3:45 pm
STL
-
GUM
54h 20m2 stops
United Airlines Logo
7:40 am - 10:14 pm
GUM
-
STL
30h 34m3 stops
$1,360United Airlines
Mon, Feb 16 - Fri, Feb 20
United Airlines Logo
6:00 am - 7:05 pm
STL
-
GUM
21h 05m2 stops
United Airlines Logo
7:25 am - 8:56 pm
GUM
-
STL
28h 31m2 stops
$1,918United Airlines
Mon, Mar 2 - Tue, Mar 10
United Airlines Logo
6:25 am - 6:50 pm
STL
-
GUM
21h 25m2 stops
United Airlines Logo
7:30 pm - 10:56 pm
GUM
-
STL
42h 26m2 stops
$1,941United Airlines
Thu, Mar 12 - Sun, Apr 12
United Airlines Logo
7:00 pm - 6:50 pm
STL
-
GUM
32h 50m2 stops
United Airlines Logo
7:05 am - 4:08 pm
GUM
-
STL
24h 03m2 stops
$1,946United Airlines
Sun, Mar 22 - Wed, Apr 1
United Airlines Logo
6:55 pm - 4:20 am
STL
-
GUM
41h 25m2 stops
United Airlines Logo
7:25 am - 4:49 pm
GUM
-
STL
24h 24m2 stops
$1,949United Airlines
Sun, Mar 1 - Mon, Mar 9
Delta Logo
6:59 pm - 3:15 pm
STL
-
GUM
53h 16m2 stops
Delta Logo
5:00 pm - 8:42 pm
GUM
-
STL
42h 42m2 stops
$1,953Delta
Sun, Mar 29 - Tue, Apr 7
United Airlines Logo
2:40 pm - 6:05 pm
STL
-
GUM
60h 25m2 stops
United Airlines Logo
7:05 am - 1:08 pm
GUM
-
STL
21h 03m2 stops
$1,954United Airlines
Sat, Apr 4 - Mon, Apr 13
United Airlines Logo
6:25 am - 6:50 pm
STL
-
GUM
21h 25m2 stops
United Airlines Logo
7:25 am - 4:59 pm
GUM
-
STL
24h 34m2 stops
$1,968United Airlines
Thu, Mar 19 - Fri, Mar 27
United Airlines Logo
6:51 am - 3:40 pm
STL
-
GUM
40h 49m2 stops
United Airlines Logo
7:25 am - 10:16 pm
GUM
-
STL
29h 51m2 stops
$1,988United Airlines
Sat, Mar 7 - Mon, Mar 16
United Airlines Logo
6:00 am - 7:05 pm
STL
-
GUM
21h 05m2 stops
United Airlines Logo
7:20 pm - 7:14 pm
GUM
-
STL
38h 54m2 stops
$1,991United Airlines
Fri, Mar 6 - Sun, Mar 15

United Airlines flights from St. Louis to Tamuning

Our best United Airlines deals on St. Louis to Tamuning flight tickets
United Airlines
Feb 16
STL5:25 pmLambert-St Louis
54h 20m
2 stops
GUM3:45 pmTamuning Guam Intl
Feb 20
GUM7:40 amTamuning Guam Intl
30h 34m
3 stops
STL10:14 pmLambert-St Louis
$1,360
Find similar
United Airlines
Mar 2
STL6:00 amLambert-St Louis
21h 05m
2 stops
GUM7:05 pmTamuning Guam Intl
Apr 2
GUM7:05 amTamuning Guam Intl
21h 03m
2 stops
STL1:08 pmLambert-St Louis
$1,918
Find similar
United Airlines
Mar 12
STL6:25 amLambert-St Louis
21h 25m
2 stops
GUM6:50 pmTamuning Guam Intl
Apr 12
GUM7:30 pmTamuning Guam Intl
42h 26m
2 stops
STL10:56 pmLambert-St Louis
$1,941
Find similar

Delta flights from St. Louis to Tamuning

Our best Delta deals on St. Louis to Tamuning flight tickets
Delta
Mar 29
STL6:59 pmLambert-St Louis
53h 16m
2 stops
GUM3:15 pmTamuning Guam Intl
Apr 7
GUM5:00 pmTamuning Guam Intl
42h 42m
2 stops
STL8:42 pmLambert-St Louis
$1,953
Find similar
Delta
Mar 7
STL5:01 pmLambert-St Louis
29h 34m
2 stops
GUM2:35 pmTamuning Guam Intl
Mar 15
GUM4:50 pmTamuning Guam Intl
35h 08m
2 stops
STL12:58 pmLambert-St Louis
$2,003
Find similar
Delta
Mar 20
STL5:25 pmLambert-St Louis
38h 40m
2 stops
GUM11:05 pmTamuning Guam Intl
Mar 29
GUM5:00 pmTamuning Guam Intl
42h 42m
2 stops
STL8:42 pmLambert-St Louis
$2,012
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Tamuning 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 January 1, 2026.
Use the filters below to find and compare flights from St. Louis to Tamuning that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Mon 2/16

5:25 pm-3:45 pm

2 stops54h 20m

Tamuning Guam Intl

Fri 2/20

7:40 am-10:14 pm

3 stops30h 34m

$1,360

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Mon 3/2

6:00 am-7:05 pm

2 stops21h 05m

Tamuning Guam Intl

Tue 3/10

7:25 am-8:56 pm

2 stops28h 31m

$1,918

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Thu 3/12

6:25 am-6:50 pm

2 stops21h 25m

Tamuning Guam Intl

Sun 4/12

7:30 pm-10:56 pm

2 stops42h 26m

$1,941

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Sun 3/22

7:00 pm-6:50 pm

2 stops32h 50m

Tamuning Guam Intl

Wed 4/1

7:05 am-4:08 pm

2 stops24h 03m

$1,946

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Sun 3/1

6:55 pm-4:20 am

2 stops41h 25m

Tamuning Guam Intl

Mon 3/9

7:25 am-4:49 pm

2 stops24h 24m

$1,949

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Sun 3/29

6:59 pm-3:15 pm

2 stops53h 16m

Tamuning Guam Intl

Tue 4/7

5:00 pm-8:42 pm

2 stops42h 42m

$1,953

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Sat 4/4

2:40 pm-6:05 pm

2 stops60h 25m

Tamuning Guam Intl

Mon 4/13

7:05 am-1:08 pm

2 stops21h 03m

$1,954

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Thu 3/19

6:25 am-6:50 pm

2 stops21h 25m

Tamuning Guam Intl

Fri 3/27

7:25 am-4:59 pm

2 stops24h 34m

$1,968

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Sat 3/7

6:51 am-3:40 pm

2 stops40h 49m

Tamuning Guam Intl

Mon 3/16

7:25 am-10:16 pm

2 stops29h 51m

$1,988

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Fri 3/6

6:00 am-7:05 pm

2 stops21h 05m

Tamuning Guam Intl

Sun 3/15

7:20 pm-7:14 pm

2 stops38h 54m

$1,991

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from St. Louis to Tamuning

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Tamuning according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Tamuning (STL to GUM) flight deals and tips

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

Fastest flight time

21h 05m

Direct flights

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

  • How far is Lambert-St Louis to Tamuning Guam Intl by plane?

    There are 7379.5 mi between Lambert-St Louis and Tamuning Guam Intl. In terms of flight time, this usually takes a little over 21h 05m.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Tamuning Guam Intl Airport?

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

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

    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 Tamuning Guam Intl Airport.

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

    The necessary travel and health documents for your Tamuning Guam Intl Airport 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.

  • How do I get Price Alerts for flights from St. Louis to Tamuning?

    Search flight deals from St. Louis to Tamuning. While viewing offers you’ll have the option to create a Price Alert.

  • How can I save money on flights from St. Louis to Tamuning with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Why use momondo?

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

It is quick and easy to find St. Louis to Tamuning flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Tamuning that suits you.

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

Yes. momondo allows you to filter the results for St. Louis to Tamuning flights to just show those with flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Tamuning 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 Tamuning right now. Can momondo alert me if prices change?

If you are not ready to book a flight from St. Louis to Tamuning now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Tamuning and let you know when they change.

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Cabin classes currently available on flights to Tamuning

List of cabin classes available on flights landing in Tamuning. Availability may vary depending on flight origin and airline.
First Class to Tamuning
Business Class to Tamuning