HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Guam

$991+ Cheap flights from St. Louis (STL) to Guam

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/24. Fares are subject to change and may not be available on all flights or dates of travel.
STL — GUM
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from St. Louis to Guam with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from St. Louis to Guam

Keep the following information in mind while searching for St. Louis to Guam flight deals. Data was last updated February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$2,052
(Delta)
Provider with most accurate pricing for Lambert-St Louis-Tamuning Guam Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Tamuning Guam Intl flights.
Search Deals
From Lambert-St Louis to Guam
Search Deals

Find flight deals from St. Louis to Guam

Cheapest flights from St. Louis to Guam
Explore the most affordable flight options available from St. Louis to Guam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This United Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/246:00 pmSTL - GUM
2 stops57h 05mUnited Airlines
Sun 9/287:20 amGUM - STL
2 stops32h 07mUnited Airlines
Deal found 2/19$991
This Delta deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/76:00 amSTL - GUM
2 stops42h 15mDelta
Mon 4/145:00 pmGUM - STL
2 stops38h 47mDelta
Deal found 2/20$2,052

Find flights from St. Louis to Guam within your budget

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, Cheapflights users made 2,558,603 searches. Data last updated February 20, 2025.

Fly from

St. Louis

Fly to

Guam

Route

Depart

Return

Price

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Mon 4/7

6:00 am-3:15 pm

2 stops42h 15m

Tamuning Guam Intl

Mon 4/14

5:00 pm-4:47 pm

2 stops38h 47m

$2,052

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Fri 3/21

7:00 am-6:50 pm

2 stops44h 50m

Tamuning Guam Intl

Mon 3/24

12:45 pm-3:16 pm

2 stops41h 31m

$2,148

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Best time to book a flight from St. Louis to Guam

Have a flexible travel schedule? Discover the best time to fly to Guam from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from St. Louis to Guam

Get recent, data-driven insights about flights from St. Louis to Guam including ideal travel times, pricing trends, and more.

Rainfall in Guam by month

Plan your trip to Guam by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Guam ranges from 2.6 - 14.4 inches per month. August is typically the wettest month, when rainfall can reach 14.4 in. March is typically the driest time to visit Guam when rainfall is around 2.6 in.

Temperature in Guam by month

Plan your trip to Guam by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Guam, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 80.6 F).

Reviews of airlines servicing Guam

Get insights into the airlines that provide service to Guam. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Guam. Reviews last updated February 20, 2025.
Delta
8.0
Very good
8,220 reviews

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

8.0

Overall

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,220 reviews
Delta
8.0
Very good
8,220 reviews

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

8.0

Overall

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
8,766 reviews
Delta
8.0
Very good
8,220 reviews

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

8.0

Overall

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Guam. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from St. Louis to Guam?

    If you book a flight to Guam from St. Louis, you will be flying from Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis.

  • Can I find deals for flights from St. Louis to Guam that include hotel bookings?

    Yes. In addition to deals on St. Louis to Guam flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Guam?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Guam.

  • Can I find deals for business class flights from St. Louis to Guam?

    Yes. Cheapflights offers flight deals from St. Louis to Guam by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from St. Louis to Guam?

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Guam (average of $1,977). Flying from St. Louis to Guam in May is currently the most expensive (average of $2,214). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for St. Louis to Guam

See prices for flight routes from nearby airports that may be better suited for you.
Kansas City to Sydney flights
St. Louis to Melbourne flights
St. Louis to Sydney flights
Kansas City to Melbourne flights
Kansas City to Auckland flights
St. Louis to Auckland flights
Kansas City to Avalon flights
Kansas City to Christchurch flights
Kansas City to Queenstown flights
St. Louis to Perth flights
St. Louis to Papeete flights
Kansas City to Tamuning flights
Kansas City to Brisbane flights
St. Louis to Nadi flights
Kansas City to Papeete flights
St. Louis to Tamuning flights
Kansas City to Nadi flights
Kansas City to Vaitape flights
Columbia to Melbourne flights
St. Louis to Brisbane flights
St. Louis to Christchurch flights
Columbia to Sydney flights
Kansas City to Perth flights
St. Louis to Vaitape flights
St. Louis to Hobart flights
St. Louis to Cairns flights
St. Louis to Wellington flights
Springfield to Brisbane flights
Kansas City to Adelaide flights
St. Louis to Canberra flights
Springfield to Coolangatta flights
Kansas City to Wellington flights
Kansas City to Rarotonga flights
Kansas City to Pago Pago flights
Kansas City to Port Moresby flights
Kansas City to Canberra flights
St. Louis to Suva flights
Kansas City to Apia flights

Top airline flying from St. Louis to Guam

Discover the top airline that operate flights from St. Louis to Guam. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,916Average$2,326FlexibilityNo cancel feeOn-time69%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.