$815 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 4/16. 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

Thu, May 7 - Fri, May 29
American Airlines Logo
8:35 pm - 10:16 am
EZE
-
STL
15h 41m
1 stop
American Airlines Logo
11:04 am - 8:35 am
STL
-
EZE
19h 31m
1 stop
$1,297American Airlines
Thu, May 7 - Fri, May 29
American Airlines Logo
8:35 pm - 12:48 pm
EZE
-
STL
18h 13m
2 stops
American Airlines Logo
9:41 am - 7:05 am
STL
-
EZE
19h 24m
1 stop
$1,301American Airlines
Tue, Apr 21 - Thu, May 28
LATAM Airlines Logo
8:10 pm - 10:34 am
EZE
-
STL
16h 24m
1 stop
LATAM Airlines Logo
7:01 pm - 9:45 am
STL
-
EZE
12h 44m
1 stop
$1,445LATAM Airlines
Tue, Apr 21 - Thu, May 28
Delta Logo
8:10 pm - 10:34 am
EZE
-
STL
16h 24m
1 stop
Delta Logo
5:20 pm - 9:45 am
STL
-
EZE
14h 25m
1 stop
$1,463Delta
Thu, May 7 - Fri, May 29
Multiple Airlines Logo
7:35 am - 12:06 pm
EZE
-
STL
30h 31m
3 stops
Multiple Airlines Logo
2:15 pm - 4:10 am
STL
-
EZE
35h 55m
3 stops
$1,510Multiple Airlines
Tue, Jun 30 - Sun, Jul 12
LATAM Airlines Logo
12:15 pm - 9:46 am
EZE
-
STL
23h 31m
2 stops
LATAM Airlines Logo
6:58 pm - 9:45 am
STL
-
EZE
12h 47m
1 stop
$1,511LATAM Airlines
Thu, May 7 - Fri, May 29
Air Canada Logo
4:35 pm - 8:25 pm
EZE
-
STL
53h 50m
3 stops
Air Canada Logo
7:05 am - 2:30 pm
STL
-
EZE
29h 25m
2 stops
$1,514Air Canada
Tue, Apr 21 - Thu, May 28
Multiple Airlines Logo
7:35 am - 3:25 pm
EZE
-
STL
33h 50m
3 stops
Multiple Airlines Logo
1:05 pm - 9:25 pm
STL
-
EZE
30h 20m
3 stops
$1,556Multiple Airlines
Tue, Jun 30 - Sun, Jul 12
Delta Logo
1:10 pm - 9:46 am
EZE
-
STL
22h 36m
2 stops
Delta Logo
10:51 am - 9:20 am
STL
-
EZE
20h 29m
2 stops
$1,559Delta
Tue, Apr 21 - Thu, May 28
LATAM Airlines Logo
7:45 am - 11:36 pm
EZE
-
STL
17h 51m
2 stops
LATAM Airlines Logo
10:49 am - 6:10 am
STL
-
EZE
17h 21m
2 stops
$1,572LATAM Airlines
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.

What is the cheapest flight to St. Louis?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

In the last 3 days, the cheapest flight deal to St. Louis was found on the route from Buenos Aires, at $1,297 return. The most popular connection is from New York to St. Louis and KAYAK users have found round-trip deals for as low as $294 in the last 3 days.

Find deals

Good to know

Cheapest flight$657
Flight from Buenos Aires to St. Louis

FAQs - booking St. Louis flights

  • What is the cheapest flight to St. Louis?

    In the last 3 days, the cheapest flight deal to St. Louis was found on the route from Buenos Aires, at $1,297 return. The most popular connection is from New York to St. Louis and KAYAK users have found round-trip deals for as low as $294 in the last 3 days.

  • 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 1,497 direct flights from within Argentina to St. Louis. The most common day for departures is Sunday, 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 8398 reviews
7.8Entertainment
8.1Boarding
7.2Food
8.5Crew
7.9Comfort
Airline reviews

Overall Good! The weather delayed our takeoff from Atlanta and our arrival in Miami! If Mother Nature can mess up a flight she will do it every time!

8.0 ExcellentPaul A, Apr 2026
ATL - MIA
Read more Delta reviews

Overall Good! The weather delayed our takeoff from Atlanta and our arrival in Miami! If Mother Nature can mess up a flight she will do it every time!

The flight was smooth, the crew was great but the plane was quite old

Everything was great until I lost my water bottle and they can’t seem to locate it. I know I left it on the plane though.

WiFi didn’t work most of the time. The usb chargers would work only occasionally for 5 mins and wouldn’t charge after that. Had to keep trying repeatedly at each of the seats in the row.

The crew bent over backwards to thank us for flying and make us comfortable. The food service was quick and efficient. The Captain communicated and said goodbye and thank you as we departed. They really stood out!

Okay considering we had weather delays which the Pilot notified us of immediately!

Generally on time departures and arrivals, clean planes, sky miles membership provides great benefits (complimentary upgrades, etc).

Flight from Fort Wayne to Atlanta was the smallest in terms of cabin space that I've ever seen. A carry on I've used for 20 years BARELY fit in overhead compartment. I'm 5'10" and felt very cramped. Not the best experience.

I am writing to express my dissatisfaction with the poor service and unprofessional staff we encountered when traveling with an infant. Our flight was delayed, and the gate staff failed to manage the boarding process appropriately. Due to incorrect, unavailable, or missing 'pink tag' stroller and car seat check-in procedures at the gate, we were forced to board last. Furthermore, the gate staff was rude and dismissive, causing significant distress to our infant. To make matters worse, one of our checked items—an infant sleeper/lounger—was returned to us broken. Given the unsafe handling of essential equipment and unprofessional treatment, I expect a prompt resolution regarding compensation for the damaged items.

We departed and landed early which was a nice surprise. The boarding process was slow.

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

St. Louis (STL)