$652 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 6/14. 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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Everything you should know

Cheapest round-trip
$1,253
Typical prices: $1,131-$1,206
LATAM Airlines
Tue 3/31Wed 6/10
EZE - STL • 2 stops
Cheapest one-way
$652
Multiple Airlines
Sun 6/14
EZE - STL • 3 stops
Start a new search
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We hope you love your trip to St. Louis!
Flight Deals
Booking Insights
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

Tue, Mar 31 - Wed, Jun 10
LATAM Airlines Logo
3:55 am - 9:05 am
EZE
-
STL
31h 10m
2 stops
LATAM Airlines Logo
5:30 pm - 9:00 pm
STL
-
EZE
25h 30m
2 stops
$1,253LATAM Airlines
Tue, Apr 7 - Thu, Jun 11
Delta Logo
8:10 pm - 9:05 am
EZE
-
STL
14h 55m
1 stop
Delta Logo
5:30 pm - 9:45 am
STL
-
EZE
14h 15m
1 stop
$1,255Delta
Wed, Apr 1 - Wed, Jun 10
LATAM Airlines Logo
7:35 am - 11:58 pm
EZE
-
STL
18h 23m
2 stops
LATAM Airlines Logo
5:30 pm - 9:45 am
STL
-
EZE
14h 15m
1 stop
$1,256LATAM Airlines
Tue, Apr 7 - Thu, Jun 11
LATAM Airlines Logo
7:45 am - 11:58 pm
EZE
-
STL
18h 13m
2 stops
LATAM Airlines Logo
7:05 pm - 6:50 pm
STL
-
EZE
21h 45m
2 stops
$1,258LATAM Airlines
Tue, Mar 31 - Wed, Jun 10
LATAM Airlines Logo
3:55 am - 11:58 pm
EZE
-
STL
22h 03m
2 stops
LATAM Airlines Logo
6:00 am - 8:35 am
STL
-
EZE
24h 35m
2 stops
$1,259LATAM Airlines
Tue, Apr 7 - Thu, Jun 11
LATAM Airlines Logo
7:45 am - 11:58 pm
EZE
-
STL
18h 13m
2 stops
LATAM Airlines Logo
1:30 pm - 8:35 am
STL
-
EZE
17h 05m
2 stops
$1,261LATAM Airlines
Mon, Apr 6 - Sat, Jun 13
Delta Logo
8:10 pm - 9:05 am
EZE
-
STL
14h 55m
1 stop
Delta Logo
1:30 pm - 9:45 am
STL
-
EZE
18h 15m
1 stop
$1,309Delta
Wed, Apr 1 - Sun, Jun 14
LATAM Airlines Logo
7:35 am - 9:05 am
EZE
-
STL
27h 30m
2 stops
LATAM Airlines Logo
5:30 pm - 12:22 pm
STL
-
EZE
16h 52m
2 stops
$1,310LATAM Airlines
Mon, Apr 6 - Sat, Jun 13
LATAM Airlines Logo
7:35 am - 11:58 pm
EZE
-
STL
18h 23m
2 stops
LATAM Airlines Logo
1:30 pm - 9:45 am
STL
-
EZE
18h 15m
1 stop
$1,312LATAM Airlines
Tue, Apr 7 - Thu, Jun 11
Delta Logo
8:10 pm - 9:05 am
EZE
-
STL
14h 55m
1 stop
Delta Logo
7:05 pm - 9:45 am
STL
-
EZE
12h 40m
1 stop
$1,427Delta
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 23h 49m.

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

There are around 261 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$652
Best time to beat the crowds with an average 25% drop in price.
Most popular time to fly and prices are also 1% 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 1,824 direct flights from within Argentina to St. Louis. The most common day for departures is Friday, with 16% 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 8110 reviews
8.1Boarding
8.5Crew
7.2Food
7.9Comfort
7.8Entertainment
Airline reviews

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

2.0 MediocreAndrea, Jan 2026
CMH - MSP
Read more Delta reviews

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

Very convenient considering that is a non-stop flight, but the Aeromexico still has old model planes, so the entertainment was very poor and the space for carry-on luggage was very limited.

Flight taking off must have been behind, because there was no pre-departure drink for first class like normal. Also, person in front of mine’s seat got stuck in the as far back as it normally goes position for the whole flight even during landing, flight attendant unable to fix it. Gate was not empty when we arrived, but that is MSP’s fault since was overdue for push back, not Delta’s, so had to sit on tarmac for a while and international flight so then still had to go through customs. Flight crew was excellent throughout though!

Flight from MEX to ATL had to divert to Tampa. When we got off the plane, there were non directions on what to do. Nearly 30 minutes just standing around. Finally told to go through security with no boarding passes, and turned away. Then told to to go back. Took forever to leave Tampa for ATL. Missed my connection to Harrisburg.

This long-haul international flight was the most comfortable among any of the same kind of flight operated by an American-headquartered airline - second to none!

I've flown several other airlines, and Delta is really on top on things.

Outdated equipment in disrepair, wifi inoperable. Broken seats, taped air vents, generally poor condition, the 717 showed its age and lack of upkeep.

My flight out of Baton Rouge to Atlanta was delayed by a half hour. This got us into Atlanta airport 30 minutes late. I ran through the airport to get to my connecting flight. As I approached the boarding gate, I saw the boarding door was still open and a passenger was being checked in. But when I got to the gate, the boarding agent told me they had already given away my seat and there were no empty seats on that flight. So I had to take a later flight. That has never happened to me before. Very frustrating.

Connection through Atlanta was difficult. Mechanical issue on plane caused a two hour delay. New gate was a mile away.

No WiFi. Comfort plus should have alcohol provided, crew only offered water or tea. Who the heck wants tea?

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