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Cheap flights from St. Louis to Uruguay from $950

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 1/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

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LATAM Airlines Logo
6:00 am - 6:45 amSTL-MVD
21h 45m2 stops
LATAM Airlines Logo
7:05 pm - 11:54 amMVD-STL
19h 49m2 stops
$950LATAM Airlines
Find Deal
Fri, Jan 16 - Fri, Jan 23
American Airlines Logo
6:02 pm - 10:15 amSTL-MVD
13h 13m1 stop
American Airlines Logo
1:05 pm - 11:03 amMVD-STL
24h 58m2 stops
$1,000American Airlines
Find Deal
Fri, Jan 16 - Fri, Jan 23
American Airlines Logo
11:19 am - 10:15 amSTL-MVD
19h 56m1 stop
American Airlines Logo
11:00 pm - 10:26 amMVD-STL
14h 26m1 stop
$1,010American Airlines
Find Deal
Mon, Feb 23 - Sat, Feb 28
American Airlines Logo
3:31 pm - 10:15 amSTL-MVD
15h 44m2 stops
American Airlines Logo
11:00 pm - 10:26 amMVD-STL
14h 26m1 stop
$1,014American Airlines
Find Deal
Mon, Feb 23 - Sat, Feb 28
LATAM Airlines Logo
10:13 am - 6:45 amSTL-MVD
41h 32m2 stops
LATAM Airlines Logo
2:25 am - 9:06 amMVD-STL
33h 41m2 stops
$1,106LATAM Airlines
Find Deal
Mon, Feb 23 - Fri, Feb 27
Multiple Airlines Logo
4:05 pm - 6:00 amSTL-MVD
34h 55m3 stops
Multiple Airlines Logo
7:50 am - 3:29 pmMVD-STL
34h 39m3 stops
$1,345Multiple Airlines
Find Deal
Mon, Feb 23 - Sat, Feb 28
Multiple Airlines Logo
4:05 pm - 6:00 amSTL-MVD
34h 55m3 stops
Multiple Airlines Logo
7:50 am - 3:29 pmMVD-STL
34h 39m3 stops
$1,431Multiple Airlines
Find Deal
Fri, Jan 16 - Fri, Jan 23
American Airlines Logo
6:02 pm - 10:15 amSTL-MVD
13h 13m1 stop
American Airlines Logo
11:05 pm - 11:59 pmMVD-STL
27h 54m1 stop
$1,554American Airlines
Find Deal
Fri, Jan 16 - Fri, Jan 23
Multiple Airlines Logo
4:05 pm - 6:00 amSTL-MVD
34h 55m2 stops
Multiple Airlines Logo
7:50 am - 3:29 pmMVD-STL
34h 39m3 stops
$1,608Multiple Airlines
Find Deal
Fri, Jan 16 - Fri, Jan 23
Multiple Airlines Logo
4:05 pm - 5:15 pmSTL-MVD
22h 10m2 stops
Multiple Airlines Logo
7:50 am - 3:29 pmMVD-STL
34h 39m3 stops
$2,131Multiple Airlines
Find Deal
Mon, Feb 23 - Sat, Feb 28

LATAM Airlines flights from St. Louis to Uruguay

Our best LATAM Airlines deals on St. Louis to Uruguay flight tickets
LATAM Airlines
Jan 16
STL6:00 amLambert-St Louis
21h 45m
2 stops
MVD6:45 amMontevideo Carrasco
Jan 23
MVD7:05 pmMontevideo Carrasco
19h 49m
2 stops
STL11:54 amLambert-St Louis
$950
Find similar
LATAM Airlines
Feb 23
STL10:13 amLambert-St Louis
41h 32m
2 stops
MVD6:45 amMontevideo Carrasco
Feb 27
MVD2:25 amMontevideo Carrasco
33h 41m
2 stops
STL9:06 amLambert-St Louis
$1,106
Find similar
LATAM Airlines
Dec 12
STL9:30 amLambert-St Louis
18h 15m
2 stops
MVD6:45 amMontevideo Carrasco
Jan 5
MVD11:35 amMontevideo Carrasco
24h 18m
2 stops
STL8:53 amLambert-St Louis
$2,570
Find similar

American Airlines flights from St. Louis to Uruguay

Our best American Airlines deals on St. Louis to Uruguay flight tickets
American Airlines
Jan 16
STL6:02 pmLambert-St Louis
13h 13m
1 stop
MVD10:15 amMontevideo Carrasco
Jan 23
MVD1:05 pmMontevideo Carrasco
24h 58m
2 stops
STL11:03 amLambert-St Louis
$1,000
Find similar
American Airlines
Feb 23
STL11:19 amLambert-St Louis
19h 56m
1 stop
MVD10:15 amMontevideo Carrasco
Feb 28
MVD11:00 pmMontevideo Carrasco
14h 26m
1 stop
STL10:26 amLambert-St Louis
$1,010
Find similar
American Airlines
Feb 23
STL3:31 pmLambert-St Louis
15h 44m
2 stops
MVD10:15 amMontevideo Carrasco
Feb 28
MVD11:00 pmMontevideo Carrasco
14h 26m
1 stop
STL10:26 amLambert-St Louis
$1,014
Find similar

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 December 2, 2025.
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

Fri 1/16

6:00 am-6:45 am

2 stops21h 45m

Montevideo Carrasco

Fri 1/23

7:05 pm-11:54 am

2 stops19h 49m

$950

St. LouisMontevideo

STL - MVD

STLMVD

Lambert-St Louis

Fri 1/16

6:02 pm-10:15 am

1 stop13h 13m

Montevideo Carrasco

Fri 1/23

1:05 pm-11:03 am

2 stops24h 58m

$1,000

St. LouisMontevideo

STL - MVD

STLMVD

Lambert-St Louis

Mon 2/23

11:19 am-10:15 am

1 stop19h 56m

Montevideo Carrasco

Sat 2/28

11:00 pm-10:26 am

1 stop14h 26m

$1,010

St. LouisMontevideo

STL - MVD

STLMVD

Lambert-St Louis

Mon 2/23

3:31 pm-10:15 am

2 stops15h 44m

Montevideo Carrasco

Sat 2/28

11:00 pm-10:26 am

1 stop14h 26m

$1,014

St. LouisMontevideo

STL - MVD

STLMVD

Lambert-St Louis

Mon 2/23

10:13 am-6:45 am

2 stops41h 32m

Montevideo Carrasco

Fri 2/27

2:25 am-9:06 am

2 stops33h 41m

$1,106

St. LouisMontevideo

STL - MVD

STLMVD

Lambert-St Louis

Mon 2/23

4:05 pm-6:00 am

3 stops34h 55m

Montevideo Carrasco

Sat 2/28

7:50 am-3:29 pm

3 stops34h 39m

$1,345

St. LouisMontevideo

STL - MVD

STLMVD

Lambert-St Louis

Fri 1/16

4:05 pm-6:00 am

3 stops34h 55m

Montevideo Carrasco

Fri 1/23

7:50 am-3:29 pm

3 stops34h 39m

$1,431

St. LouisMontevideo

STL - MVD

STLMVD

Lambert-St Louis

Fri 1/16

6:02 pm-10:15 am

1 stop13h 13m

Montevideo Carrasco

Fri 1/23

11:05 pm-11:59 pm

1 stop27h 54m

$1,554

St. LouisMontevideo

STL - MVD

STLMVD

Lambert-St Louis

Fri 1/16

4:05 pm-6:00 am

2 stops34h 55m

Montevideo Carrasco

Fri 1/23

7:50 am-3:29 pm

3 stops34h 39m

$1,608

St. LouisMontevideo

STL - MVD

STLMVD

Lambert-St Louis

Mon 2/23

4:05 pm-5:15 pm

2 stops22h 10m

Montevideo Carrasco

Sat 2/28

7:50 am-3:29 pm

3 stops34h 39m

$2,131

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Uruguay from

How to get the cheapest flight ticket from St. Louis to Uruguay

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Uruguay?

On average, the least expensive day to fly to Uruguay from St. Louis is on a Monday. momondo users have found tickets for Monday departures for as low as $1,185. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Saturday is the most expensive day to depart from St. Louis because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,692.

What is the cheapest time of day to depart on your flight to Uruguay?

Flying to Uruguay from St. Louis in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $1,354 when looking at flights departing in the afternoon. Try not to purchase tickets in the morning because they tend to be around $1,386. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

21h 45m

Direct flights

None
The fastest flight from St. Louis to Uruguay takes 21h 45m
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 $866Free CancellationRating
7.5
1,890 reviews
Search LATAM Airlines flights

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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