914 € Cheap Flights from St Louis to Montevideo

Compare St Louis to Montevideo flight deals

Find the cheapest month or even day of the year to fly to Montevideo

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Flight deals from St Louis to Montevideo

Looking for a cheap last-minute deal or the best return flight from St Louis Airport to Montevideo Airport? If you want to travel next month, return fares start from 952 €. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from St Louis to Montevideo

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like St Louis to Montevideo flights are currently cheapest in August.

St Louis to Montevideo: Alternative routes

Compare routes from St Louis to Montevideo below. You may find an airport to fly into that's cheaper, faster, or easier than Montevideo.

St Louis to Montevideo: Flight information

The things to know before you go.
Cheapest flight found914 €
Cheapest month to flyAugust

Finding cheap flights from St Louis to Montevideo: Frequently asked questions

The best price we found for a return flight from St Louis to Montevideo is 914 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from St Louis to Montevideo. But we found flights with one or more stops from 914 €.
As of June 2026, there are no flights flying from St Louis to Montevideo.
The cheapest month to fly from St Louis to Montevideo is usually August.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from St Louis Airport to Montevideo Airport on Saturday, 1 August 2026.
No airlines currently offer direct flights between St Louis Airport and Montevideo Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Montevideo but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Montevideo is around 40 days in advance, so don’t leave your flight to the last minute.

Currently, Frontier Airlines offers the cheapest flight tickets to Montevideo.

Travelling from St Louis Airport (STL) to Montevideo Airport (MVD): what you need to know

  • Montevideo's timezone is UTC-3, making Montevideo three hours ahead of St Louis.

  • To ensure you get on your STL to MVD flight, leave enough time to navigate the airport and find your gate. Turning up two hours ahead of international departures and an hour before domestic flights is the general travel rule.

  • You can expect longer lines during popular months like July. Arriving up to four hours in advance for an international flight and two hours for a domestic departure will help ensure a smooth travel experience.

  • Pick a stopover if you want to break up your flight. Simply uncheck 'Direct flights only' to look at your options for tickets from St Louis Airport to Montevideo Airport. Miami International Airport is a top stopover on the STL to MVD route.

How to find the cheapest flights from St Louis Airport (STL) to Montevideo Airport (MVD)

  • The lowest price we've seen for a one-way St Louis Airport to Montevideo Airport flight is 396 €. A return fare right now is 914 €. Depending on the availability and when you book, these fares could change.

  • Don't leave things to the last minute. You're more likely to find cheap tickets from STL to MVD if you book in advance. Airlines often offer some excellent early bird deals.

  • The 'Whole month' search function shows you the cheapest flights from St Louis Airport to Montevideo Airport throughout the entire month. It's an easy way to snap up a bargain if your trip dates are flexible.

  • Save time searching for cheap flights from STL to MVD by setting up a Price Alert. We'll send you an email or notification through the app when a special offer becomes available.

  • Secure the right flight for you by using the filters. To see the 'Fastest,' 'Best' or 'Cheapest' flights from St Louis Airport to Montevideo Airport, use the 'Sort by' function. You can also filter by departure and arrival times, airline, and journey duration.

Handy information about St Louis Airport (STL)

Arriving at Montevideo Airport (MVD)

When to fly to Montevideo Airport (MVD)

  • June is the busiest month for flights from St Louis Airport to Montevideo Airport. To steer clear of the crowds, go to Montevideo in March.

  • Before locking in your flight from St Louis Airport to Montevideo Airport, think about the kind of weather you like. January is the warmest month in Montevideo, with temperatures ranging from 18ºC (64ºF) to 30ºC (86ºF).

  • If you like cooler conditions, search for a cheap ticket from STL to MVD in July. Temperatures average between 6ºC (43ºF) and 15ºC (59ºF) then.

Explore more of Uruguay

  • You've done Montevideo, now it's time to explore more of Uruguay. Journey around 418 kilometres north-west to Salto to check off its top attractions. From Hot Springs of Arapey to Acuamania and Lago Salto Grande. Salto, Uruguay, your itinerary will be busy.

  • Paysandu is another must-experience destination in Uruguay and is around 338 kilometres north-west of Montevideo. No journey is complete without seeing Museo de la Tradición, Catedral Basilica de Paysandu and Palacio Rizzo.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.