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Cheap flights from St. Louis to Uruguay from $1,331

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 Uruguay departing on 5/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from St. Louis to Uruguay

Cheap round-trip flights

Enter your travel dates to find the best prices.
LATAM Airlines Logo
6:00 am - 3:55 pm
STL
-
MVD
31h 55m
2 stops
LATAM Airlines Logo
12:43 pm - 5:46 pm
MVD
-
STL
31h 03m
2 stops
$1,331LATAM Airlines
Mon, May 25 - Mon, Jun 1
LATAM Airlines Logo
6:00 am - 4:15 pm
STL
-
MVD
32h 15m
2 stops
LATAM Airlines Logo
7:40 am - 11:46 pm
MVD
-
STL
18h 06m
2 stops
$1,540LATAM Airlines
Sun, Jun 21 - Sat, Jun 27
Multiple Airlines Logo
7:05 am - 5:45 pm
STL
-
MVD
32h 40m
2 stops
Multiple Airlines Logo
12:43 pm - 8:25 pm
MVD
-
STL
33h 42m
3 stops
$1,729Multiple Airlines
Mon, May 25 - Mon, Jun 1
Multiple Airlines Logo
2:15 pm - 1:50 am
STL
-
MVD
33h 35m
3 stops
Multiple Airlines Logo
7:21 pm - 8:25 pm
MVD
-
STL
27h 04m
3 stops
$1,867Multiple Airlines
Mon, May 25 - Mon, Jun 1
American Airlines Logo
5:16 am - 12:15 pm
STL
-
MVD
28h 59m
2 stops
American Airlines Logo
1:05 pm - 11:59 am
MVD
-
STL
24h 54m
3 stops
$2,811American Airlines
Sun, Jun 21 - Sat, Jun 27
American Airlines Logo
12:39 pm - 12:15 pm
STL
-
MVD
21h 36m
3 stops
American Airlines Logo
1:05 pm - 11:59 am
MVD
-
STL
24h 54m
3 stops
$4,107American Airlines
Sun, Jun 21 - Sat, Jun 27

LATAM Airlines flights from St. Louis to Uruguay

Our best LATAM Airlines deals on St. Louis to Uruguay flight tickets
LATAM Airlines
May 25
STL6:00 amLambert-St Louis
31h 55m
2 stops
MVD3:55 pmMontevideo Carrasco
Jun 1
MVD12:43 pmMontevideo Carrasco
31h 03m
2 stops
STL5:46 pmLambert-St Louis
$1,331
LATAM Airlines
Jun 21
STL6:00 amLambert-St Louis
32h 15m
2 stops
MVD4:15 pmMontevideo Carrasco
Jun 27
MVD7:40 amMontevideo Carrasco
18h 06m
2 stops
STL11:46 pmLambert-St Louis
$1,540

American Airlines flights from St. Louis to Uruguay

Our best American Airlines deals on St. Louis to Uruguay flight tickets
American Airlines
Jun 21
STL5:16 amLambert-St Louis
28h 59m
2 stops
MVD12:15 pmMontevideo Carrasco
Jun 27
MVD1:05 pmMontevideo Carrasco
24h 54m
3 stops
STL11:59 amLambert-St Louis
$2,811
American Airlines
Jun 21
STL12:39 pmLambert-St Louis
21h 36m
3 stops
MVD12:15 pmMontevideo Carrasco
Jun 27
MVD1:05 pmMontevideo Carrasco
24h 54m
3 stops
STL11:59 amLambert-St Louis
$4,107

momondo 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, momondo users made 832,500 searches. Data last updated May 4, 2026.
Use the filters below to find and compare flights from St. Louis to Uruguay that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisMontevideo

STL - MVD

STLMVD

Lambert-St Louis

Mon 5/25

6:00 am-3:55 pm

2 stops31h 55m

Montevideo Carrasco

Mon 6/1

12:43 pm-5:46 pm

2 stops31h 03m

$1,331

St. LouisMontevideo

STL - MVD

STLMVD

Lambert-St Louis

Sun 6/21

6:00 am-4:15 pm

2 stops32h 15m

Montevideo Carrasco

Sat 6/27

7:40 am-11:46 pm

2 stops18h 06m

$1,540

St. LouisMontevideo

STL - MVD

STLMVD

Lambert-St Louis

Mon 5/25

7:05 am-5:45 pm

2 stops32h 40m

Montevideo Carrasco

Mon 6/1

12:43 pm-8:25 pm

3 stops33h 42m

$1,729

St. LouisMontevideo

STL - MVD

STLMVD

Lambert-St Louis

Mon 5/25

2:15 pm-1:50 am

3 stops33h 35m

Montevideo Carrasco

Mon 6/1

7:21 pm-8:25 pm

3 stops27h 04m

$1,867

St. LouisMontevideo

STL - MVD

STLMVD

Lambert-St Louis

Sun 6/21

5:16 am-12:15 pm

2 stops28h 59m

Montevideo Carrasco

Sat 6/27

1:05 pm-11:59 am

3 stops24h 54m

$2,811
Quickest round-trip

St. LouisMontevideo

STL - MVD

STLMVD

Lambert-St Louis

Sun 6/21

12:39 pm-12:15 pm

3 stops21h 36m

Montevideo Carrasco

Sat 6/27

1:05 pm-11:59 am

3 stops24h 54m

$4,107

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

Cheap St. Louis to Uruguay flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Uruguay

Fastest flight time

32h 15m

Direct flights

None
The fastest flight from St. Louis to Uruguay takes 32h 15m
There are no direct flights from St. Louis to Uruguay. There are no popular flight routes from St. Louis to Uruguay.
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Frequently asked questions about flying from St. Louis to Uruguay

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Uruguay?

    Prices for flights from Lambert-St Louis Airport to Uruguay are updated daily.

  • How old do you have to be to fly from Lambert-St Louis Airport to Uruguay?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Uruguay.

  • What documentation or ID do you need to fly to Uruguay?

    The required travel and health documents for your Uruguay trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Uruguay. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Frequently asked questions about flying from St. Louis to Uruguay

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

    You can take advantage of momondo’s Price Alerts by first searching for your flights to St. Louis from Uruguay. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

  • How can I save money on flights from St. Louis to Uruguay with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • 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 Uruguay?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from St. Louis to Uruguay for you.

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

All flight searches from St. Louis to Uruguay on momondo can be filtered to show those which offer flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from St. Louis to Uruguay.

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

Of course. momondo tracks the price of St. Louis to Uruguay flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Find better results for your trip to Uruguay

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