$1,141+ Cheap flights from St. Louis (STL) to Uruguay
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 3/21. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MVD
Jan 3 — Jan 101
1 adult, Economy
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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 Uruguay
Cheapest flights from St. Louis to UruguayExplore the most affordable flight options available from St. Louis to Uruguay. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 4, 2025.
Explore the most affordable flight options available from St. Louis to Uruguay. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 4, 2025.
This United Airlines deal was found by Cheapflights users on 12/2. 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 12/511:10 amSTL - MVD
2 stops34h 52mUnited Airlines
Mon 12/812:37 amMVD - STL
2 stops24h 21mUnited Airlines
Deal found 12/2![United Airlines logo]()
$1,537
This FlightHub deal was found by Cheapflights users on 12/3. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/121:57 pmSTL - MVD
2 stops24h 18mLATAM Airlines
Mon 1/56:35 pmMVD - STL
2 stops43h 30mLATAM Airlines
Deal found 12/3![LATAM Airlines logo]()
$2,015
This American Airlines deal was found by Cheapflights users on 12/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/128:13 amSTL - MVD
2 stops22h 57mAmerican Airlines
Mon 1/511:15 pmMVD - STL
2 stops18h 49mAmerican Airlines
Deal found 12/3![American Airlines logo]()
$2,482
Find flight deals from St. Louis to Uruguay
Keep the following information in mind while searching for St. Louis to Uruguay flight deals. Data was last updated December 4, 2025.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $950 (LATAM Airlines) |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Uruguay 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 December 4, 2025.
Use the filters below to find and compare flights from St. Louis to Uruguay that are best for you.
Fly from
St. Louis
Fly to
Uruguay
Route
Depart
Return
Price
St. LouisMontevideo
STL - MVD
STLMVD
Lambert-St Louis
Sat 3/21
3:22 pm-12:05 pm
2 stops18h 43m
Montevideo Carrasco
Mon 3/30
1:05 pm-2:52 pm
2 stops27h 47m
$1,141
St. LouisMontevideo
STL - MVD
STLMVD
Lambert-St Louis
Sat 3/21
6:30 pm-6:45 am
3 stops34h 15m
Montevideo Carrasco
Mon 3/30
6:55 am-3:24 pm
3 stops34h 29m
$1,744
St. LouisMontevideo
STL - MVD
STLMVD
Lambert-St Louis
Sat 3/21
6:00 am-6:45 am
2 stops22h 45m
Montevideo Carrasco
Mon 3/30
7:35 am-11:42 pm
2 stops18h 07m
$3,920
Best time to book a flight from St. Louis to Uruguay
Have a flexible travel schedule? Discover the best time to fly to Uruguay 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 Uruguay
No data available for this route at this time. Please check back soon.
Reviews of airlines servicing Uruguay
Get insights into the airlines that provide service to Uruguay. 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 Uruguay. Reviews last updated December 4, 2025.
Read through reviews of airlines operating flights from St. Louis to Uruguay, such as LATAM Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
6.7
Crew
8.0
Boarding
7.6
Overall
7.5
Entertainment
7.0
Comfort
7.4
Reviews
1 / 20
2.0
MediocreAnonymous,Oct 2025
MIA - GRU
Food
6.7
Crew
8.0
Boarding
7.6
Overall
7.5
Entertainment
7.0
Comfort
7.4
Reviews
1 / 20
2.0
MediocreAnonymous,Oct 2025
MIA - GRU
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Uruguay. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for St. Louis to Uruguay
See prices for flight routes from nearby airports that may be better suited for you.
Top airline flying from St. Louis to Uruguay
Discover the top airline that operate flights from St. Louis to Uruguay. 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 December 4, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$866 | Average$1,779 | FlexibilityNo cancel fee | On-time81% |