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Cheap flights from St. Louis to Tamuning from $2,042

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 6/3. 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
7:23 pm - 6:05 pm
STL
-
GUM
31h 42m
2 stops
United Airlines Logo
7:30 pm - 9:16 pm
GUM
-
STL
40h 46m
2 stops
$2,042United Airlines
Wed, Jun 3 - Mon, Jun 15
Delta Logo
6:29 am - 3:35 pm
STL
-
GUM
42h 06m
2 stops
Delta Logo
5:20 pm - 12:21 am
GUM
-
STL
46h 01m
2 stops
$2,054Delta
Mon, Mar 30 - Mon, Apr 6
United Airlines Logo
6:00 am - 6:05 pm
STL
-
GUM
21h 05m
2 stops
United Airlines Logo
12:15 pm - 3:46 pm
GUM
-
STL
42h 31m
3 stops
$2,073United Airlines
Wed, Jun 3 - Mon, Jun 15
Delta Logo
4:41 pm - 11:55 pm
STL
-
GUM
40h 14m
2 stops
Delta Logo
3:00 am - 11:36 pm
GUM
-
STL
35h 36m
2 stops
$2,109Delta
Sun, Apr 19 - Fri, May 1
United Airlines Logo
7:23 pm - 6:05 pm
STL
-
GUM
55h 42m
2 stops
United Airlines Logo
12:15 pm - 11:57 pm
GUM
-
STL
26h 42m
2 stops
$2,133United Airlines
Sat, Jun 6 - Sat, Jun 20
United Airlines Logo
4:49 pm - 6:05 pm
STL
-
GUM
34h 16m
2 stops
United Airlines Logo
7:05 am - 4:56 pm
GUM
-
STL
24h 51m
2 stops
$2,213United Airlines
Sun, Apr 5 - Thu, Apr 9
Delta Logo
6:29 am - 3:35 pm
STL
-
GUM
42h 06m
2 stops
Delta Logo
3:00 am - 11:25 pm
GUM
-
STL
35h 25m
2 stops
$2,354Delta
Wed, Apr 1 - Tue, Apr 7
United Airlines Logo
6:00 am - 6:05 pm
STL
-
GUM
21h 05m
2 stops
United Airlines Logo
4:55 pm - 5:50 am
GUM
-
STL
51h 55m
2 stops
$2,587United Airlines
Sun, Mar 29 - Sat, Apr 4
United Airlines Logo
8:30 am - 6:05 pm
STL
-
GUM
42h 35m
2 stops
United Airlines Logo
7:05 am - 5:47 am
GUM
-
STL
37h 42m
2 stops
$5,504United Airlines
Wed, May 6 - Wed, May 20
United Airlines Logo
8:30 am - 4:20 am
STL
-
GUM
28h 50m
2 stops
United Airlines Logo
12:10 pm - 4:56 pm
GUM
-
STL
19h 46m
2 stops
$7,170United Airlines
Tue, Mar 24 - Thu, Apr 2

United Airlines flights from St. Louis to Tamuning

Our best United Airlines deals on St. Louis to Tamuning flight tickets
United Airlines
Jun 3
STL7:23 pmLambert-St Louis
31h 42m
2 stops
GUM6:05 pmTamuning Guam Intl
Jun 15
GUM7:30 pmTamuning Guam Intl
40h 46m
2 stops
STL9:16 pmLambert-St Louis
$2,042
United Airlines
Jun 3
STL6:00 amLambert-St Louis
21h 05m
2 stops
GUM6:05 pmTamuning Guam Intl
Jun 15
GUM12:15 pmTamuning Guam Intl
42h 31m
3 stops
STL3:46 pmLambert-St Louis
$2,073
United Airlines
Jun 6
STL7:23 pmLambert-St Louis
55h 42m
2 stops
GUM6:05 pmTamuning Guam Intl
Jun 20
GUM12:15 pmTamuning Guam Intl
26h 42m
2 stops
STL11:57 pmLambert-St Louis
$2,133

Delta flights from St. Louis to Tamuning

Our best Delta deals on St. Louis to Tamuning flight tickets
Delta
Mar 30
STL6:29 amLambert-St Louis
42h 06m
2 stops
GUM3:35 pmTamuning Guam Intl
Apr 6
GUM5:20 pmTamuning Guam Intl
46h 01m
2 stops
STL12:21 amLambert-St Louis
$2,054
Delta
Apr 19
STL4:41 pmLambert-St Louis
40h 14m
2 stops
GUM11:55 pmTamuning Guam Intl
May 1
GUM3:00 amTamuning Guam Intl
35h 36m
2 stops
STL11:36 pmLambert-St Louis
$2,109
Delta
Apr 1
STL6:29 amLambert-St Louis
42h 06m
2 stops
GUM3:35 pmTamuning Guam Intl
Apr 7
GUM3:00 amTamuning Guam Intl
35h 25m
2 stops
STL11:25 pmLambert-St Louis
$2,354

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 March 7, 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

Cheapest round-trip

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Wed 6/3

7:23 pm-6:05 pm

2 stops31h 42m

Tamuning Guam Intl

Mon 6/15

7:30 pm-9:16 pm

2 stops40h 46m

$2,042

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Mon 3/30

6:29 am-3:35 pm

2 stops42h 06m

Tamuning Guam Intl

Mon 4/6

5:20 pm-12:21 am

2 stops46h 01m

$2,054

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Wed 6/3

6:00 am-6:05 pm

2 stops21h 05m

Tamuning Guam Intl

Mon 6/15

12:15 pm-3:46 pm

3 stops42h 31m

$2,073

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Sun 4/19

4:41 pm-11:55 pm

2 stops40h 14m

Tamuning Guam Intl

Fri 5/1

3:00 am-11:36 pm

2 stops35h 36m

$2,109

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Sat 6/6

7:23 pm-6:05 pm

2 stops55h 42m

Tamuning Guam Intl

Sat 6/20

12:15 pm-11:57 pm

2 stops26h 42m

$2,133

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Sun 4/5

4:49 pm-6:05 pm

2 stops34h 16m

Tamuning Guam Intl

Thu 4/9

7:05 am-4:56 pm

2 stops24h 51m

$2,213

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Wed 4/1

6:29 am-3:35 pm

2 stops42h 06m

Tamuning Guam Intl

Tue 4/7

3:00 am-11:25 pm

2 stops35h 25m

$2,354

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Sun 3/29

6:00 am-6:05 pm

2 stops21h 05m

Tamuning Guam Intl

Sat 4/4

4:55 pm-5:50 am

2 stops51h 55m

$2,587

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Wed 5/6

8:30 am-6:05 pm

2 stops42h 35m

Tamuning Guam Intl

Wed 5/20

7:05 am-5:47 am

2 stops37h 42m

$5,504
Quickest round-trip

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Tue 3/24

8:30 am-4:20 am

2 stops28h 50m

Tamuning Guam Intl

Thu 4/2

12:10 pm-4:56 pm

2 stops19h 46m

$7,170

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

38h 05m

Direct flights

None
The fastest flight from St. Louis to Tamuning takes 38h 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 38h 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 Tamuningfrom $2,531