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

There is 1 operator available for flights from Lambert-St Louis Airport to Tamuning Guam Intl Airport as of September 2025.

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.

$897 Cheap Flights from St. Louis to Tamuning in 2025/26

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Cheap round-trip flights

5:29 pm - 3:45 pmSTL-GUM

54h 16m2 stops

7:40 am - 9:58 pmGUM-STL

30h 18m2 stops

$897United Airlines

Find Deal

Fri, Nov 28 - Tue, Dec 2

5:29 pm - 3:45 pmSTL-GUM

54h 16m2 stops

7:40 am - 8:57 pmGUM-STL

29h 17m2 stops

$999United Airlines

Find Deal

Fri, Nov 28 - Tue, Dec 2

5:29 pm - 3:45 pmSTL-GUM

54h 16m2 stops

7:40 am - 4:28 pmGUM-STL

24h 48m2 stops

$1,079United Airlines

Find Deal

Fri, Nov 28 - Tue, Dec 2

6:00 am - 11:05 pmSTL-GUM

25h 05m2 stops

1:00 am - 5:09 pmGUM-STL

32h 09m2 stops

$2,303Delta

Find Deal

Fri, Nov 28 - Mon, Dec 1

6:30 am - 6:05 pmSTL-GUM

20h 35m2 stops

7:40 am - 4:27 pmGUM-STL

23h 47m2 stops

$2,427United Airlines

Find Deal

Thu, Oct 23 - Thu, Oct 30

5:00 am - 6:05 pmSTL-GUM

22h 05m2 stops

1:00 pm - 9:54 pmGUM-STL

23h 54m3 stops

$2,455United Airlines

Find Deal

Thu, Oct 23 - Thu, Oct 30

United Airlines flights from St. Louis to Tamuning

Our best United Airlines deals on St. Louis to Tamuning flight tickets

United Airlines

Nov 28

STL5:29 pmLambert-St Louis

54h 16m

2 stops

GUM3:45 pmTamuning Guam Intl

Dec 2

GUM7:40 amTamuning Guam Intl

30h 18m

2 stops

STL9:58 pmLambert-St Louis

$897

Find similar

United Airlines

Nov 28

STL5:29 pmLambert-St Louis

54h 16m

2 stops

GUM3:45 pmTamuning Guam Intl

Dec 2

GUM7:40 amTamuning Guam Intl

29h 17m

2 stops

STL8:57 pmLambert-St Louis

$999

Find similar

United Airlines

Nov 28

STL5:29 pmLambert-St Louis

54h 16m

2 stops

GUM3:45 pmTamuning Guam Intl

Dec 2

GUM7:40 amTamuning Guam Intl

24h 48m

2 stops

STL4:28 pmLambert-St Louis

$1,079

Find similar

Fly from

Fly to

Route

Depart

Return

Price

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

7:40 am-9:58 pm

2 stops30h 18m

$897

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

7:40 am-8:57 pm

2 stops29h 17m

$999

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

7:40 am-4:28 pm

2 stops24h 48m

$1,079

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Fri 11/28

6:00 am-11:05 pm

2 stops25h 05m

Tamuning Guam Intl

Mon 12/1

1:00 am-5:09 pm

2 stops32h 09m

$2,303

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Thu 10/23

6:30 am-6:05 pm

2 stops20h 35m

Tamuning Guam Intl

Thu 10/30

7:40 am-4:27 pm

2 stops23h 47m

$2,427

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Thu 10/23

5:00 am-6:05 pm

2 stops22h 05m

Tamuning Guam Intl

Thu 10/30

1:00 pm-9:54 pm

3 stops23h 54m

$2,455

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

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 Tamuning?

The cheapest day to depart from St. Louis to Tamuning is on a Wednesday. Travelers who choose to depart for Tamuning on a Wednesday will often find tickets for as low as $2,016. The most expensive day to fly to Tamuning is Sunday, with ticket prices averaging around $2,352.

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

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Direct flights	None

There are no direct flights from St. Louis to Tamuning. There are no popular flight routes from St. Louis to Tamuning.

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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 20h 35m.
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 many operators does momondo search for flights from Lambert-St Louis Airport to Tamuning Guam Intl Airport?
There is 1 operator available for flights from Lambert-St Louis Airport to Tamuning Guam Intl Airport as of September 2025.
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.
What is the most popular airline from St. Louis to Tamuning?
Based on momondo bookings for this flight route, the most popular airline on flight routes from St. Louis to Tamuning is United Airlines (100% of total bookings).

Best airlines flying from St. Louis to Tamuning

Compare and see reviews for airlines that fly from St. Louis to Tamuning with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $948	Free Cancellation	Rating 7.4 8,928 reviews		Search United Airlines flights

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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.

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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.

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Cheap flights from St. Louis to Tamuning from $897

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 11/28. 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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Filter for what you want

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

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 Tamuning?

The cheapest day to depart from St. Louis to Tamuning is on a Wednesday. Travelers who choose to depart for Tamuning on a Wednesday will often find tickets for as low as $2,016. The most expensive day to fly to Tamuning is Sunday, with ticket prices averaging around $2,352.

When to book flights from St. Louis to Tamuning

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

Direct flights

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

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

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

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

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

What is the most popular airline from St. Louis to Tamuning?

Best airlines flying from St. Louis to Tamuning

Compare and see reviews for airlines that fly from St. Louis to Tamuning with momondo

Why use momondo?

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

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

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

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

An easier way to manage your Tamuning trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Guam

Fly your favorite airline to Tamuning

Airlines are sorted and displayed according to clicks in the past 7 days on momondo