$502 Find Cheap Flights from Argentina to St. Louis

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to St. Louis departing on 5/17. 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

KAYAK searches hundreds of travel sites at once for deals on flights to St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results for flights to St. Louis, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to St. Louis, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Argentina to St. Louis

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Argentina to St. Louis 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 Argentina to St. Louis

Sun, May 17 - Wed, May 27
American Airlines Logo
8:35 pm - 10:16 am
EZE
-
STL
15h 41m
1 stop
American Airlines Logo
1:20 pm - 7:10 am
STL
-
EZE
15h 50m
1 stop
$1,007American Airlines
Tue, May 19 - Thu, Jun 11
American Airlines Logo
8:35 pm - 1:22 pm
EZE
-
STL
18h 47m
2 stops
American Airlines Logo
12:39 pm - 7:15 am
STL
-
EZE
16h 36m
2 stops
$1,011American Airlines
Sun, May 17 - Wed, May 27
United Airlines Logo
9:00 pm - 1:23 pm
EZE
-
STL
18h 23m
2 stops
United Airlines Logo
9:23 am - 8:00 am
STL
-
EZE
20h 37m
2 stops
$1,070United Airlines
Tue, Apr 7 - Thu, Jun 11
LATAM Airlines Logo
7:35 am - 11:58 pm
EZE
-
STL
18h 23m
2 stops
LATAM Airlines Logo
7:05 pm - 9:45 am
STL
-
EZE
12h 40m
1 stop
$1,281LATAM Airlines
Tue, Apr 7 - Thu, Jun 11
Delta Logo
8:10 pm - 9:05 am
EZE
-
STL
14h 55m
1 stop
Delta Logo
3:42 pm - 9:45 am
STL
-
EZE
16h 03m
1 stop
$1,282Delta
Tue, Apr 7 - Mon, Jun 8
Delta Logo
1:20 pm - 12:58 pm
EZE
-
STL
25h 38m
2 stops
Delta Logo
9:00 am - 8:35 am
STL
-
EZE
21h 35m
2 stops
$1,318Delta
Tue, May 19 - Thu, Jun 11
Multiple Airlines Logo
7:10 am - 8:39 am
EZE
-
STL
27h 29m
2 stops
Multiple Airlines Logo
1:00 pm - 2:30 pm
STL
-
EZE
47h 30m
3 stops
$1,335Multiple Airlines
Mon, Apr 6 - Sat, Jun 13
LATAM Airlines Logo
7:35 am - 9:05 am
EZE
-
STL
27h 30m
2 stops
LATAM Airlines Logo
1:30 pm - 11:30 am
STL
-
EZE
20h 00m
2 stops
$1,337LATAM Airlines
Sat, Apr 11 - Thu, Jun 18
LATAM Airlines Logo
11:30 am - 8:47 am
EZE
-
STL
23h 17m
2 stops
LATAM Airlines Logo
1:30 pm - 9:45 am
STL
-
EZE
18h 15m
1 stop
$1,338LATAM Airlines
Sat, Apr 11 - Thu, Jun 18
Delta Logo
1:20 pm - 3:13 pm
EZE
-
STL
27h 53m
2 stops
Delta Logo
9:00 am - 8:35 am
STL
-
EZE
21h 35m
2 stops
$1,373Delta
Booking Insights

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

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

How long is the flight to St. Louis?

The duration of your flight to St. Louis depends on your departure and arrival airports. Obviously any flights that include a layover will also be longer. The most popular route to St. Louis on KAYAK is from Buenos Aires, which takes 15h 26m.

How many direct flights to St. Louis are there each day?

There are around 328 direct flights from within Argentina to St. Louis every day. Most flights depart in the morning, with 7:00 am the most common departure time and 45% of flights departing in the morning.

Good to know

Low seasonApril
Cheapest flight$502
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly and prices are also 21% lower on average.
Flight from Buenos Aires to St. Louis

FAQs - booking St. Louis flights

  • How far is Lambert-St Louis Airport from central St. Louis?

    Lambert-St Louis Airport is 13 miles from the center of St. Louis.

  • What is the name of St. Louis’s airport?

    St. Louis is served by Lambert-St Louis Airport, also commonly referred to as Lambert Field, Lambert-St Louis, St. Louis Lambert, or St. Louis Lambert Intl. The airport code is STL.

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

    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 to St. Louis.

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

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

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

    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 to St. Louis 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 to St. Louis?

    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 to St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • How many direct flights to St. Louis are there each week?

    Each week there are around 2,292 direct flights from within Argentina to St. Louis. The most common day for departures is Friday, with 15% of flights taking off on this day.

Top tips for finding cheap flights to St. Louis

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest St. Louis flight deals.

Reviews of the top airline flying from Argentina to St. Louis

 
See real verified KAYAK customer reviews for airlines flying to St. Louis. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Argentina to St. Louis. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to St. Louis? 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 8212 reviews
8.1Boarding
8.5Crew
7.8Entertainment
7.2Food
7.9Comfort
Airline reviews

Terrible. Four hour delay because Delta could not find crew to man the aircraft. Terrible communication. Terrible insight into the delays. One of the worst flight experiences I’ve had.

2.0 MediocreDonna, Feb 2026
DEN - LGA
Read more Delta reviews

Terrible. Four hour delay because Delta could not find crew to man the aircraft. Terrible communication. Terrible insight into the delays. One of the worst flight experiences I’ve had.

The landing was the worst I’ve experienced with a flight.

The crew, and fellow passengers, were super gracious and kind. There seemed to be plenty of bin space even though the plane was full. It’s nice to get a glass of wine with dinner in Premiere seating, and there was a lot of food.

First flight out and was 85 minutes delayed. Notification came out way too late

Delta flights recently are always delayed AND at jfk tney get the gates further away (need To walk 20’ to get to them/all the way at the end of the terminal). Not sure whats happening but price doesnt match experience!

Boarding was efficient and smooth. Departure time was on time. Arrival to Detroit was early. Average food . Average crew service Very average cabin comfort. Nothing spectacular one way ir another, except for the excellent on time performance.

Everything I mentioned earlier - the airbus was more comfortable indeed and the experience was further enhanced.

Delta continues to set the benchmark for traveler-friendly service with minimal disruption and clear communication within the mainland US (coast to coast). I am consistently pleased to be a Delta customer, and this experience once again met my expectations. There was a brief delay departing from MIA due to a technical issue that required the aircraft to return to the gate. However, the situation was handled professionally and transparently. Fortunately, my planned layover allowed ample buffer time, so the adjustment caused no stress. Overall, another smooth and reassuring experience.

Good experience and the flight landed early. There was no food I had or entertainment.

Flight was delayed and no reasons provided. After the passengers were boarded, the crew made announcement that the captain has jot arrived and he would take another 15 mins. All passengers patiently sat until the captain came and started. Terrible experience!

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
O'Fallon
Wentzville
Farmington
Eureka
Litchfield
Grafton
Shrewsbury
Glencoe

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

Information on the airport you'll fly into in St. Louis