$435 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 1/1. 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, 0 bags

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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

Sat, Jan 24 - Sat, Jan 31
American Airlines Logo
9:25 am - 10:15 am
STL
-
MVD
21h 50m2 stops
American Airlines Logo
11:05 pm - 9:15 pm
MVD
-
STL
25h 10m2 stops
$954American Airlines
Sat, Jan 24 - Sat, Jan 31
American Airlines Logo
10:00 am - 10:15 am
STL
-
MVD
21h 15m1 stop
American Airlines Logo
11:05 pm - 5:22 pm
MVD
-
STL
21h 17m1 stop
$1,170American Airlines
Sat, Jan 24 - Sat, Jan 31
Multiple Airlines Logo
4:05 pm - 6:10 pm
STL
-
MVD
23h 05m2 stops
Multiple Airlines Logo
7:50 am - 10:13 am
MVD
-
STL
29h 23m3 stops
$1,889Multiple Airlines
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 is just one airline that flies from St. Louis to Uruguay direct and that is LATAM Airlines. The best round-trip deal found from LATAM Airlines for the route is to Montevideo (MVD) and costs $866.

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Good to know

Cheapest flight$435
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 airline 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.
7.5
LATAM AirlinesOverall score based on 1887 reviews
8.1Crew
7.6Boarding
6.7Food
7.4Comfort
7.0Entertainment
Airline reviews

Good flight, boarding ok and crew very nice. Flight was not full so I was able to be very comfortable. Blanket and pillow provided with was good as it was very cold during the flight . Food was very good(small snack sandwich and an excellent piece of orange cake). Overall good flight, no complaints.

10.0 ExcellentMaría Victoria, Nov 2025
GRU - COR
Read more LATAM Airlines reviews

Good flight, boarding ok and crew very nice. Flight was not full so I was able to be very comfortable. Blanket and pillow provided with was good as it was very cold during the flight . Food was very good(small snack sandwich and an excellent piece of orange cake). Overall good flight, no complaints.

Latam may be the worst airline in the world, far worse than even the lowest of low cost airlines in the USA. I wasted hours trying to PAY THEM TO CHECK A BAG! Then they misled me at the terminal, sent me through the wrong security line, the list goes on and on... Just absolutely terrible in every way. Avoid at all costs.

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.

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

Information on your arrival and departure airports

St. Louis (STL)