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Cheap flights from St. Louis to Guam from $2,212

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 7/27. 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 Guam

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:00 am - 6:05 pm
STL
-
GUM
21h 05m
2 stops
United Airlines Logo
7:30 pm - 11:36 pm
GUM
-
STL
43h 06m
2 stops
$2,212United Airlines
Mon, Jul 27 - Mon, Aug 3
United Airlines Logo
12:55 pm - 3:45 pm
STL
-
GUM
59h 50m
2 stops
United Airlines Logo
7:05 am - 4:33 pm
GUM
-
STL
24h 28m
2 stops
$2,214United Airlines
Mon, Jun 1 - Fri, Jun 5
United Airlines Logo
12:55 pm - 3:45 pm
STL
-
GUM
59h 50m
2 stops
United Airlines Logo
7:05 am - 3:46 pm
GUM
-
STL
47h 41m
3 stops
$2,247United Airlines
Mon, Jun 1 - Fri, Jun 5
Delta Logo
5:36 pm - 3:35 pm
STL
-
GUM
30h 59m
2 stops
Delta Logo
5:20 pm - 9:43 am
GUM
-
STL
55h 23m
2 stops
$2,263Delta
Sat, Jul 4 - Sat, Jul 11
United Airlines Logo
7:23 pm - 6:05 pm
STL
-
GUM
31h 42m
2 stops
United Airlines Logo
7:05 am - 12:42 pm
GUM
-
STL
20h 37m
2 stops
$2,359United Airlines
Tue, Jun 16 - Tue, Jun 23
United Airlines Logo
6:00 am - 4:20 am
STL
-
GUM
31h 20m
2 stops
United Airlines Logo
7:05 am - 10:45 pm
GUM
-
STL
30h 40m
2 stops
$2,382United Airlines
Mon, Jun 8 - Mon, Jun 15
United Airlines Logo
6:00 am - 9:15 pm
STL
-
GUM
24h 15m
2 stops
United Airlines Logo
7:05 am - 6:17 pm
GUM
-
STL
26h 12m
2 stops
$2,385United Airlines
Thu, Jun 4 - Thu, Jun 11
United Airlines Logo
7:23 pm - 6:05 pm
STL
-
GUM
31h 42m
2 stops
United Airlines Logo
7:05 am - 4:33 pm
GUM
-
STL
24h 28m
2 stops
$2,409United Airlines
Sat, Jun 27 - Thu, Jul 2
United Airlines Logo
4:48 pm - 9:45 pm
STL
-
GUM
37h 57m
2 stops
United Airlines Logo
7:30 pm - 6:17 pm
GUM
-
STL
37h 47m
2 stops
$2,415United Airlines
Sun, Jun 7 - Sun, Jun 14
United Airlines Logo
9:06 am - 6:05 pm
STL
-
GUM
41h 59m
2 stops
United Airlines Logo
7:30 pm - 6:17 pm
GUM
-
STL
37h 47m
2 stops
$2,422United Airlines
Sun, Jun 21 - Sun, Jun 28

United Airlines flights from St. Louis to Guam

Our best United Airlines deals on St. Louis to Guam flight tickets
United Airlines
Jul 27
STL6:00 amLambert-St Louis
21h 05m
2 stops
GUM6:05 pmTamuning Guam Intl
Aug 3
GUM7:30 pmTamuning Guam Intl
43h 06m
2 stops
STL11:36 pmLambert-St Louis
$2,212
United Airlines
Jun 1
STL12:55 pmLambert-St Louis
59h 50m
2 stops
GUM3:45 pmTamuning Guam Intl
Jun 5
GUM7:05 amTamuning Guam Intl
24h 28m
2 stops
STL4:33 pmLambert-St Louis
$2,214
United Airlines
Jun 1
STL12:55 pmLambert-St Louis
59h 50m
2 stops
GUM3:45 pmTamuning Guam Intl
Jun 5
GUM7:05 amTamuning Guam Intl
47h 41m
3 stops
STL3:46 pmLambert-St Louis
$2,247

Delta flights from St. Louis to Guam

Our best Delta deals on St. Louis to Guam flight tickets
Delta
Jul 4
STL5:36 pmLambert-St Louis
30h 59m
2 stops
GUM3:35 pmTamuning Guam Intl
Jul 11
GUM2:00 amTamuning Guam Intl
46h 43m
2 stops
STL9:43 amLambert-St Louis
$2,263
Delta
Jun 4
STL6:21 amLambert-St Louis
42h 14m
2 stops
GUM3:35 pmTamuning Guam Intl
Jun 11
GUM5:20 pmTamuning Guam Intl
46h 23m
2 stops
STL12:43 amLambert-St Louis
$2,579
Delta
Jun 6
STL7:05 pmLambert-St Louis
29h 30m
2 stops
GUM3:35 pmTamuning Guam Intl
Jun 13
GUM5:20 pmTamuning Guam Intl
53h 56m
2 stops
STL8:16 amLambert-St Louis
$2,629

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 May 9, 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

Mon 7/27

6:00 am-6:05 pm

2 stops21h 05m

Tamuning Guam Intl

Mon 8/3

7:30 pm-11:36 pm

2 stops43h 06m

$2,212

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Mon 6/1

12:55 pm-3:45 pm

2 stops59h 50m

Tamuning Guam Intl

Fri 6/5

7:05 am-4:33 pm

2 stops24h 28m

$2,214

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Mon 6/1

12:55 pm-3:45 pm

2 stops59h 50m

Tamuning Guam Intl

Fri 6/5

7:05 am-3:46 pm

3 stops47h 41m

$2,247

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Sat 7/4

5:36 pm-3:35 pm

2 stops30h 59m

Tamuning Guam Intl

Sat 7/11

5:20 pm-9:43 am

2 stops55h 23m

$2,263

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Tue 6/16

7:23 pm-6:05 pm

2 stops31h 42m

Tamuning Guam Intl

Tue 6/23

7:05 am-12:42 pm

2 stops20h 37m

$2,359

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Mon 6/8

6:00 am-4:20 am

2 stops31h 20m

Tamuning Guam Intl

Mon 6/15

7:05 am-10:45 pm

2 stops30h 40m

$2,382
Quickest round-trip

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Thu 6/4

6:00 am-9:15 pm

2 stops24h 15m

Tamuning Guam Intl

Thu 6/11

7:05 am-6:17 pm

2 stops26h 12m

$2,385

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Sat 6/27

7:23 pm-6:05 pm

2 stops31h 42m

Tamuning Guam Intl

Thu 7/2

7:05 am-4:33 pm

2 stops24h 28m

$2,409

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Sun 6/7

4:48 pm-9:45 pm

2 stops37h 57m

Tamuning Guam Intl

Sun 6/14

7:30 pm-6:17 pm

2 stops37h 47m

$2,415

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Sun 6/21

9:06 am-6:05 pm

2 stops41h 59m

Tamuning Guam Intl

Sun 6/28

7:30 pm-6:17 pm

2 stops37h 47m

$2,422

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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.
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Frequently asked questions about flying from St. Louis to Guam

  • 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 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.

Frequently asked questions about flying from St. Louis to Guam

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

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

  • How can I save money on flights from St. Louis to Guam 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 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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