$451 Find Cheap Flights from St. Louis to Uruguay

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Uruguay departing on 11/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

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Flight Deals

Book Cheap St. Louis to Uruguay Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Uruguay that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Uruguay

Tue, Dec 2 - Fri, Dec 5
LATAM Airlines Logo
2:11 pm - 12:20 amSTL-MVD
31h 09m2 stops
LATAM Airlines Logo
7:50 am - 11:42 pmMVD-STL
18h 52m2 stops
$797LATAM Airlines
Find Deal
Tue, Dec 2 - Fri, Dec 5
Delta Logo
4:32 pm - 10:30 amSTL-MVD
38h 58m2 stops
Delta Logo
7:05 pm - 5:29 pmMVD-STL
25h 24m2 stops
$806Delta
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 - 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, Feb 28 - Sun, Mar 8
LATAM Airlines Logo
10:00 am - 6:45 amSTL-MVD
17h 45m2 stops
LATAM Airlines Logo
7:40 am - 11:40 pmMVD-STL
42h 00m2 stops
$866LATAM Airlines
Find Deal
Sat, Feb 28 - Sat, Mar 7
GOL Logo
4:59 pm - 12:05 pmSTL-MVD
40h 06m2 stops
GOL Logo
3:30 am - 9:29 amMVD-STL
32h 59m2 stops
$1,026GOL
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Tue, Dec 2 - Thu, Dec 4
United Airlines Logo
11:10 am - 7:26 amSTL-MVD
17h 16m2 stops
United Airlines Logo
12:37 am - 4:04 pmMVD-STL
18h 27m2 stops
$1,394United Airlines
Find Deal
Thu, Dec 4 - Wed, Jan 7
United Airlines Logo
11:10 am - 7:26 amSTL-MVD
41h 16m2 stops
United Airlines Logo
12:53 am - 10:52 amMVD-STL
36h 59m2 stops
$1,537United Airlines
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Wed, Dec 17 - Tue, Dec 30
Delta Logo
11:40 am - 10:30 amSTL-MVD
19h 50m2 stops
Delta Logo
2:25 am - 4:59 pmMVD-STL
41h 34m2 stops
$1,740Delta
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Sat, Dec 20 - Sun, Jan 4
GOL Logo
6:00 pm - 12:05 pmSTL-MVD
39h 05m2 stops
GOL Logo
1:05 pm - 10:35 pmMVD-STL
36h 30m2 stops
$3,062GOL
Find Deal
Booking Insights

KAYAK's insights & trends for St. Louis to Uruguay flights

Get data-powered insights and trends into flights from St. Louis to Uruguay to help you find the cheapest flights, the best time to fly and much more.

Which airlines fly non-stop between St. Louis and Uruguay?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from St. Louis to Uruguay.

There are 2 airlines that fly nonstop from St. Louis to Uruguay. They are LATAM Airlines and Delta. The cheapest airline for this route is LATAM Airlines, with the best round-trip deal found costing $866 and arriving in Montevideo (MVD). On average, Delta offers the best prices for nonstop flights between St. Louis and Uruguay.

Which airlines provide the cheapest flights from St. Louis to Uruguay?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from St. Louis to Uruguay were found on LATAM Airlines ($797) and Delta ($806).

Good to know

Cheapest flight$451
Flight from St. Louis to Montevideo

FAQs - booking Uruguay flights

  • How does KAYAK find such low prices on flights from St. Louis to Uruguay?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Uruguay.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Uruguay?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from St. Louis to Uruguay is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Uruguay?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from St. Louis to Uruguay with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Uruguay?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from St. Louis to Uruguay up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Uruguay?

    The cheapest time of day to fly to Uruguay is generally in the evening, when round-trip flights cost $1,354 on average. Morning departures are around 2% more expensive than evening flights, on average. The most expensive time of day to fly to Uruguay is generally in the morning, which is peak travel time and where the average cost of a ticket is $1,386.

Reviews of the top airlines flying from St. Louis to Uruguay

 
Need help choosing which airline to fly with from St. Louis to Uruguay? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 7978 reviews
7.3Food
8.2Boarding
7.9Entertainment
8.5Crew
7.9Comfort
Airline reviews

The aircraft interior is old and tired on this aircraft. The entertainment system never worked despite the crews attempt to reset the system.

6.0 GoodDavid, Oct 2025JFK - KEF
Read more Delta reviews

The aircraft interior is old and tired on this aircraft. The entertainment system never worked despite the crews attempt to reset the system.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Old plane and old configuration/seats but still comfortable for a morning flight

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

Flight was crowded and the woman sitting on my left was large & kept crouching in to my space. You need bigger seats or smaller passengers to fit into the seats you DO have! Snack were OK. Would appreciate if airlines had more savory rather than sweet snacks, thank you!

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

We were delayed, which I think had to do with air traffic control. Otherwise, everything was great.

The boarding process needs to be refined. Sometimes the gate crew calls out the zones and then flip to showing the.zones boarding on the gate monitor display. So, unless you are huddled around the gate lanes watching the monitor, you could miss your boarding zone. Suggest the zones be announced each time a new zone is allowed to board.

The boarding process needs to be refined. Sometimes the gate crew call out the boarding zone, and then flip to the monitor to show which zones are boarding. So unless everyone is gathered around to see the monitor there is usually confusion as wi which zones are boarding.

Poor handling of carry on luggage. We had a 8 hour stop in Santiago, are over 70 and, in spite of paying full fare they wanted to send carry on to luggage hold. No empathy. We had to show that several group 4/5 passengers were not sending their carry ons before they finally let Is keep them. Very poor .

Really bad experience – delayed for 6 hours without any notice, no food or drinks provided, and stuck in the horrible Cartagena airport.

I’m entitled to a refund per LATAM due to the mid flight itinerary change and being stuck in São Paulo for 24 hours and needing to get a hotel. The airline was dismissive and of no help.

The flight was late. Please do not delay next time.

I couldn't travel, now I can't get a refund and to change the date I have to pay an absurd fine.

My biggest complaint is the comfort. I am not tall and there was no legroom. It was very uncomfortable. During my transfer in Sao Paola, the flight was slightly delayed so boarding was confusing because there were no instructions in English.

Bought a ticket that included a bag and they still charged me to check it in, latam is the worst airline.

I never got this flight. You sent me to Chile!!! And from Chile I got the other flight to São Paulo... I've arrived 7h latter than I was supposed to arrive because of Delta delays.

Because the flight was late, we lost the connection to Brazil. You, Delta delayed, and you Delta anticipated the door closing in 15 min from Miami to GRU. Why? It caused a lot of stress! I almost could not see my mother in law alive because of your delay.

It’s a delta flight operated by LATAM. The whole ticket sale is a mess, delta changed my flight but didn’t update it in LATAM system, I couldn’t get my boarding pass, it took me hours to resolve this issue with delta. I had to change my travel plan. No apology from Delta even though it’s their fault.

Everything you need to know for your flight from St. Louis to Uruguay

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