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$1,135+ 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 11/28. Fares are subject to change and may not be available on all flights or dates of travel.
STL — GUM
Nov 22 — Nov 291
Sat 11/22
Sat 11/29
1 adult, Economy
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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 October 23, 2025.

This United Airlines deal was found by Cheapflights users on 10/21. 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.
Fri 11/285:29 pmSTL - GUM
2 stops54h 16mUnited Airlines
Tue 12/27:40 amGUM - STL
2 stops30h 18mUnited Airlines
Deal found 10/21$1,135
This Delta deal was found by Cheapflights users on 10/21. 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.
Sun 11/166:00 amSTL - GUM
2 stops40h 35mDelta
Sun 11/234:50 pmGUM - STL
2 stops37h 01mDelta
Deal found 10/21$2,103
This Delta deal was found by Cheapflights users on 10/22. 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.
Fri 11/286:00 amSTL - GUM
2 stops25h 05mDelta
Mon 12/11:00 amGUM - STL
2 stops28h 53mDelta
Deal found 10/22$2,303
This United Airlines deal was found by Cheapflights users on 10/22. 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.
Mon 12/156:15 amSTL - GUM
2 stops20h 35mUnited Airlines
Sun 12/217:20 pmGUM - STL
2 stops43h 23mUnited Airlines
Deal found 10/22$2,382
This United Airlines deal was found by Cheapflights users on 10/21. 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.
Sun 11/166:30 amSTL - GUM
3 stops23h 15mUnited Airlines
Sun 11/237:40 amGUM - STL
2 stops20h 59mUnited Airlines
Deal found 10/21$2,555
This Delta deal was found by Cheapflights users on 10/22. 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 12/156:30 amSTL - GUM
2 stops24h 35mDelta
Sat 12/201:00 amGUM - STL
2 stops38h 42mDelta
Deal found 10/22$2,603

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 October 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,135
(United Airlines)
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
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Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated October 23, 2025.
Use the filters below to find and compare flights from St. Louis to Guam that are best for you.

Fly from

St. Louis

Fly to

Guam

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

$1,135

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Sun 11/16

6:00 am-2:35 pm

2 stops40h 35m

Tamuning Guam Intl

Sun 11/23

4:50 pm-1:51 pm

2 stops37h 01m

$2,103

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-9:57 pm

2 stops36h 57m

$2,303

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Mon 12/15

6:15 am-6:50 pm

2 stops20h 35m

Tamuning Guam Intl

Sun 12/21

7:20 pm-10:43 pm

2 stops43h 23m

$2,382

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Sun 11/16

6:30 am-9:45 pm

3 stops23h 15m

Tamuning Guam Intl

Sun 11/23

7:40 am-12:39 pm

2 stops20h 59m

$2,555

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Mon 12/15

6:30 am-11:05 pm

2 stops24h 35m

Tamuning Guam Intl

Sat 12/20

1:00 am-11:42 pm

2 stops38h 42m

$2,603

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/21

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.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Guam
No data available for this route at this time. Please check back soon.

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 October 23, 2025.
See what other customers who have flown with United Airlines from St. Louis to Guam have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,995 reviews

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
United Airlines
7.4
Good
8,995 reviews
United Airlines
7.4
Good
8,995 reviews

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

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.

  • How long is the flight from St. Louis to Guam?

    Airlines like United Airlines and Delta fly from St. Louis to Guam in about 40h 35m. The time it takes to get you to your destination can typically vary by up to 13h 41m. The distance between St. Louis and Guam is about 7367 mi. This flight may include one or multiple stops.

  • 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.

See more FAQs

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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 October 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$948Average$2,326FlexibilityNo cancel feeOn-time69%

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