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Cheap flights from St. Louis to Uruguay from $1,091

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 3/23. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
12:04 pm - 6:45 am
STL
-
MVD
16h 41m
2 stops
Delta Logo
5:55 pm - 5:53 pm
MVD
-
STL
25h 58m
2 stops
$1,091Delta
Mon, Mar 23 - Mon, Apr 6
LATAM Airlines Logo
12:04 pm - 5:45 pm
STL
-
MVD
27h 41m
2 stops
LATAM Airlines Logo
11:35 am - 11:09 am
MVD
-
STL
25h 34m
2 stops
$1,133LATAM Airlines
Wed, Apr 1 - Mon, Apr 6
American Airlines Logo
6:20 pm - 10:15 am
STL
-
MVD
12h 55m
1 stop
American Airlines Logo
11:00 pm - 5:40 pm
MVD
-
STL
21h 40m
1 stop
$1,361American Airlines
Thu, Feb 12 - Thu, Feb 19
LATAM Airlines Logo
6:00 am - 6:45 am
STL
-
MVD
21h 45m
2 stops
LATAM Airlines Logo
7:05 pm - 9:06 am
MVD
-
STL
17h 01m
2 stops
$1,363LATAM Airlines
Thu, Feb 12 - Thu, Feb 19
American Airlines Logo
6:20 pm - 10:15 am
STL
-
MVD
12h 55m
1 stop
American Airlines Logo
11:00 pm - 5:13 pm
MVD
-
STL
21h 13m
2 stops
$1,365American Airlines
Thu, Feb 12 - Thu, Feb 19
Multiple Airlines Logo
4:05 pm - 3:55 pm
STL
-
MVD
21h 50m
2 stops
Multiple Airlines Logo
6:55 am - 3:24 pm
MVD
-
STL
34h 29m
3 stops
$1,584Multiple Airlines
Wed, Apr 1 - Mon, Apr 6
Multiple Airlines Logo
4:05 pm - 5:45 pm
STL
-
MVD
23h 40m
3 stops
Multiple Airlines Logo
6:55 am - 3:24 pm
MVD
-
STL
34h 29m
3 stops
$1,588Multiple Airlines
Wed, Apr 1 - Mon, Apr 6
Multiple Airlines Logo
4:05 pm - 10:10 am
STL
-
MVD
40h 05m
2 stops
Multiple Airlines Logo
9:55 am - 3:24 pm
MVD
-
STL
31h 29m
3 stops
$1,949Multiple Airlines
Mon, Mar 23 - Mon, Apr 6
Multiple Airlines Logo
4:05 pm - 8:35 pm
STL
-
MVD
26h 30m
3 stops
Multiple Airlines Logo
9:55 am - 3:24 pm
MVD
-
STL
31h 29m
3 stops
$2,363Multiple Airlines
Mon, Mar 23 - Mon, Apr 6

LATAM Airlines flights from St. Louis to Uruguay

Our best LATAM Airlines deals on St. Louis to Uruguay flight tickets
LATAM Airlines
Apr 1
STL12:04 pmLambert-St Louis
27h 41m
2 stops
MVD5:45 pmMontevideo Carrasco
Apr 6
MVD11:35 amMontevideo Carrasco
25h 34m
2 stops
STL11:09 amLambert-St Louis
$1,133
LATAM Airlines
Feb 12
STL6:00 amLambert-St Louis
21h 45m
2 stops
MVD6:45 amMontevideo Carrasco
Feb 19
MVD7:05 pmMontevideo Carrasco
17h 01m
2 stops
STL9:06 amLambert-St Louis
$1,363

American Airlines flights from St. Louis to Uruguay

Our best American Airlines deals on St. Louis to Uruguay flight tickets
American Airlines
Feb 12
STL6:20 pmLambert-St Louis
12h 55m
1 stop
MVD10:15 amMontevideo Carrasco
Feb 19
MVD11:00 pmMontevideo Carrasco
21h 40m
1 stop
STL5:40 pmLambert-St Louis
$1,361
American Airlines
Feb 12
STL6:20 pmLambert-St Louis
12h 55m
1 stop
MVD10:15 amMontevideo Carrasco
Feb 19
MVD11:00 pmMontevideo Carrasco
21h 13m
2 stops
STL5:13 pmLambert-St Louis
$1,365

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 January 18, 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

St. LouisMontevideo

STL - MVD

STLMVD

Lambert-St Louis

Mon 3/23

12:04 pm-6:45 am

2 stops16h 41m

Montevideo Carrasco

Mon 4/6

5:55 pm-5:53 pm

2 stops25h 58m

$1,091

St. LouisMontevideo

STL - MVD

STLMVD

Lambert-St Louis

Wed 4/1

12:04 pm-5:45 pm

2 stops27h 41m

Montevideo Carrasco

Mon 4/6

11:35 am-11:09 am

2 stops25h 34m

$1,133

St. LouisMontevideo

STL - MVD

STLMVD

Lambert-St Louis

Thu 2/12

6:20 pm-10:15 am

1 stop12h 55m

Montevideo Carrasco

Thu 2/19

11:00 pm-5:40 pm

1 stop21h 40m

$1,361

St. LouisMontevideo

STL - MVD

STLMVD

Lambert-St Louis

Thu 2/12

6:00 am-6:45 am

2 stops21h 45m

Montevideo Carrasco

Thu 2/19

7:05 pm-9:06 am

2 stops17h 01m

$1,363

St. LouisMontevideo

STL - MVD

STLMVD

Lambert-St Louis

Thu 2/12

6:20 pm-10:15 am

1 stop12h 55m

Montevideo Carrasco

Thu 2/19

11:00 pm-5:13 pm

2 stops21h 13m

$1,365

St. LouisMontevideo

STL - MVD

STLMVD

Lambert-St Louis

Wed 4/1

4:05 pm-3:55 pm

2 stops21h 50m

Montevideo Carrasco

Mon 4/6

6:55 am-3:24 pm

3 stops34h 29m

$1,584

St. LouisMontevideo

STL - MVD

STLMVD

Lambert-St Louis

Wed 4/1

4:05 pm-5:45 pm

3 stops23h 40m

Montevideo Carrasco

Mon 4/6

6:55 am-3:24 pm

3 stops34h 29m

$1,588

St. LouisMontevideo

STL - MVD

STLMVD

Lambert-St Louis

Mon 3/23

4:05 pm-10:10 am

2 stops40h 05m

Montevideo Carrasco

Mon 4/6

9:55 am-3:24 pm

3 stops31h 29m

$1,949

St. LouisMontevideo

STL - MVD

STLMVD

Lambert-St Louis

Mon 3/23

4:05 pm-8:35 pm

3 stops26h 30m

Montevideo Carrasco

Mon 4/6

9:55 am-3:24 pm

3 stops31h 29m

$2,363

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

17h 06m

Direct flights

None
The fastest flight from St. Louis to Uruguay takes 17h 06m
There are no direct flights from St. Louis to Uruguay. There are no popular flight routes from St. Louis to Uruguay.
Search flight deals

  • 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 many operators does momondo search for flights from Lambert-St Louis Airport to Uruguay?

  • 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.

Best airlines flying from St. Louis to Uruguay

Compare and see reviews for airlines that fly from St. Louis to Uruguay with momondo
Airline
Rating
Free Cancellation
Price
LATAM AirlinesPriceFrom $797Free CancellationRating
7.5
1,908 reviews
Search LATAM Airlines flights

  • 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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