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Cheap flights from St. Louis to Montevideo from $749

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 Montevideo departing on 12/4. 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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Cheap round-trip flights

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American Airlines Logo
2:09 pm - 10:10 amSTL-MVD
17h 01m2 stops
American Airlines Logo
10:40 pm - 2:49 pmMVD-STL
19h 09m2 stops
$749American Airlines
Find Deal
Thu, Dec 4 - Mon, Dec 8
Delta Logo
10:00 am - 10:30 amSTL-MVD
22h 30m2 stops
Delta Logo
2:25 am - 11:40 pmMVD-STL
23h 15m2 stops
$797Delta
Find Deal
Sun, Mar 8 - Tue, Mar 17
American Airlines Logo
8:13 am - 10:15 amSTL-MVD
23h 02m2 stops
American Airlines Logo
11:25 pm - 6:34 pmMVD-STL
22h 09m2 stops
$833American Airlines
Find Deal
Sat, Jan 10 - Sat, Jan 24
American Airlines Logo
8:13 am - 10:15 amSTL-MVD
23h 02m2 stops
American Airlines Logo
11:25 pm - 11:59 pmMVD-STL
27h 34m1 stop
$843American Airlines
Find Deal
Sat, Jan 10 - Sat, Jan 24
American Airlines Logo
5:03 pm - 10:10 amSTL-MVD
15h 07m1 stop
American Airlines Logo
1:05 pm - 6:15 pmMVD-STL
31h 10m2 stops
$844American Airlines
Find Deal
Sun, Mar 8 - Wed, Mar 18
United Airlines Logo
6:15 am - 7:26 amSTL-MVD
22h 11m2 stops
United Airlines Logo
12:37 am - 9:58 pmMVD-STL
24h 21m2 stops
$1,394United Airlines
Find Deal
Tue, Dec 2 - Thu, Dec 4
United Airlines Logo
6:15 am - 7:26 amSTL-MVD
22h 11m2 stops
United Airlines Logo
12:37 am - 9:58 pmMVD-STL
24h 21m2 stops
$1,441United Airlines
Find Deal
Thu, Dec 4 - Sun, Dec 7
LATAM Airlines Logo
6:00 am - 10:30 amSTL-MVD
25h 30m2 stops
LATAM Airlines Logo
2:25 am - 11:40 pmMVD-STL
24h 15m2 stops
$2,935LATAM Airlines
Find Deal
Fri, Dec 12 - Sun, Jan 4
LATAM Airlines Logo
1:00 pm - 3:35 pmSTL-MVD
23h 35m3 stops
LATAM Airlines Logo
11:35 am - 9:04 amMVD-STL
24h 29m2 stops
$2,975LATAM Airlines
Find Deal
Sat, Jan 10 - Sat, Jan 24
Delta Logo
7:05 am - 6:45 amSTL-MVD
20h 40m2 stops
Delta Logo
2:25 am - 11:40 pmMVD-STL
24h 15m2 stops
$4,375Delta
Find Deal
Fri, Dec 12 - Sun, Jan 4

American Airlines flights from St. Louis to Montevideo

Our best American Airlines deals on St. Louis to Montevideo flight tickets
American Airlines
Dec 4
STL2:09 pmLambert-St Louis
17h 01m
2 stops
MVD10:10 amMontevideo Carrasco
Dec 8
MVD10:40 pmMontevideo Carrasco
19h 09m
2 stops
STL2:49 pmLambert-St Louis
$749
Find similar
American Airlines
Jan 10
STL8:13 amLambert-St Louis
23h 02m
2 stops
MVD10:15 amMontevideo Carrasco
Jan 24
MVD11:25 pmMontevideo Carrasco
22h 09m
2 stops
STL6:34 pmLambert-St Louis
$833
Find similar
American Airlines
Jan 10
STL8:13 amLambert-St Louis
23h 02m
2 stops
MVD10:15 amMontevideo Carrasco
Jan 24
MVD11:25 pmMontevideo Carrasco
27h 34m
1 stop
STL11:59 pmLambert-St Louis
$843
Find similar

LATAM Airlines flights from St. Louis to Montevideo

Our best LATAM Airlines deals on St. Louis to Montevideo flight tickets
LATAM Airlines
Dec 12
STL6:00 amLambert-St Louis
25h 30m
2 stops
MVD10:30 amMontevideo Carrasco
Jan 4
MVD2:25 amMontevideo Carrasco
24h 15m
2 stops
STL11:40 pmLambert-St Louis
$2,935
Find similar
LATAM Airlines
Jan 10
STL1:00 pmLambert-St Louis
23h 35m
3 stops
MVD3:35 pmMontevideo Carrasco
Jan 24
MVD11:35 amMontevideo Carrasco
24h 29m
2 stops
STL9:04 amLambert-St Louis
$2,975
Find similar
LATAM Airlines
Dec 12
STL6:00 amLambert-St Louis
21h 45m
2 stops
MVD6:45 amMontevideo Carrasco
Jan 4
MVD2:25 amMontevideo Carrasco
24h 15m
2 stops
STL11:40 pmLambert-St Louis
$4,237
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Montevideo 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 October 23, 2025.
Use the filters below to find and compare flights from St. Louis to Montevideo that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisMontevideo

STL - MVD

STLMVD

Lambert-St Louis

Thu 12/4

2:09 pm-10:10 am

2 stops17h 01m

Montevideo Carrasco

Mon 12/8

10:40 pm-2:49 pm

2 stops19h 09m

$749

St. LouisMontevideo

STL - MVD

STLMVD

Lambert-St Louis

Sun 3/8

10:00 am-10:30 am

2 stops22h 30m

Montevideo Carrasco

Tue 3/17

2:25 am-11:40 pm

2 stops23h 15m

$797

St. LouisMontevideo

STL - MVD

STLMVD

Lambert-St Louis

Sat 1/10

8:13 am-10:15 am

2 stops23h 02m

Montevideo Carrasco

Sat 1/24

11:25 pm-6:34 pm

2 stops22h 09m

$833

St. LouisMontevideo

STL - MVD

STLMVD

Lambert-St Louis

Sat 1/10

8:13 am-10:15 am

2 stops23h 02m

Montevideo Carrasco

Sat 1/24

11:25 pm-11:59 pm

1 stop27h 34m

$843

St. LouisMontevideo

STL - MVD

STLMVD

Lambert-St Louis

Sun 3/8

5:03 pm-10:10 am

1 stop15h 07m

Montevideo Carrasco

Wed 3/18

1:05 pm-6:15 pm

2 stops31h 10m

$844

St. LouisMontevideo

STL - MVD

STLMVD

Lambert-St Louis

Tue 12/2

6:15 am-7:26 am

2 stops22h 11m

Montevideo Carrasco

Thu 12/4

12:37 am-9:58 pm

2 stops24h 21m

$1,394

St. LouisMontevideo

STL - MVD

STLMVD

Lambert-St Louis

Thu 12/4

6:15 am-7:26 am

2 stops22h 11m

Montevideo Carrasco

Sun 12/7

12:37 am-9:58 pm

2 stops24h 21m

$1,441

St. LouisMontevideo

STL - MVD

STLMVD

Lambert-St Louis

Fri 12/12

6:00 am-10:30 am

2 stops25h 30m

Montevideo Carrasco

Sun 1/4

2:25 am-11:40 pm

2 stops24h 15m

$2,935

St. LouisMontevideo

STL - MVD

STLMVD

Lambert-St Louis

Sat 1/10

1:00 pm-3:35 pm

3 stops23h 35m

Montevideo Carrasco

Sat 1/24

11:35 am-9:04 am

2 stops24h 29m

$2,975

St. LouisMontevideo

STL - MVD

STLMVD

Lambert-St Louis

Fri 12/12

7:05 am-6:45 am

2 stops20h 40m

Montevideo Carrasco

Sun 1/4

2:25 am-11:40 pm

2 stops24h 15m

$4,375

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Montevideo from

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

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 Montevideo?

The cheapest day to depart on your flight to Montevideo is on a Monday when prices can be found for as low as $1,185. This is often the case because there is less demand to fly during this day of the week. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from St. Louis to Montevideo for around $1,692.

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

The cheapest time of day to fly to Montevideo is in the afternoon when flights can be purchased for as low as $1,354. In the morning is when there is more demand to fly to Montevideo, so prices are often more expensive at around $1,386 per ticket.

When to book flights from St. Louis to Montevideo

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Montevideo according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Montevideo (STL to MVD) flight deals and tips

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

Direct flights

None
There are no direct flights from St. Louis to Montevideo. There are no popular flight routes from St. Louis to Montevideo.
Search flight deals

  • How far is Lambert-St Louis to Montevideo Carrasco by plane?

    Montevideo Carrasco is 5522.6 mi away from Lambert-St Louis. Typically, this will take 14h 08m by plane in normal conditions.

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

    Prices for flights from Lambert-St Louis Airport to Montevideo Carrasco Airport were last updated today.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Montevideo Carrasco Airport.

  • What documentation or ID do you need to fly to Montevideo Carrasco Airport?

    The travel and health documents you'll need for your trip to Montevideo Carrasco Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Montevideo Carrasco Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from St. Louis to Montevideo?

Best airlines flying from St. Louis to Montevideo

Compare and see reviews for airlines that fly from St. Louis to Montevideo with momondo
Airline
Rating
Free Cancellation
Price
LATAM AirlinesPriceFrom $866Free CancellationRating
7.5
1,870 reviews
Search LATAM Airlines flights
DeltaPriceFrom $1,006Free CancellationRating
7.9
7,981 reviews
Search Delta flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Montevideo?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Montevideo from St. Louis.

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

Flights from St. Louis to Montevideo with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once all potential St. Louis to Montevideo flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are simply researching potential flights to Montevideo, momondo offers a useful price alert feature which will track prices for flights to Montevideo from St. Louis and alert you when they change.

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