$432 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 5/12. 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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

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

Wed, May 27 - Tue, Aug 4
United Airlines Logo
9:00 pm - 2:16 pm
EZE
-
STL
19h 16m
1 stop
United Airlines Logo
8:35 am - 8:00 am
STL
-
EZE
21h 25m
1 stop
$1,119United Airlines
Wed, May 27 - Tue, Aug 4
LATAM Airlines Logo
7:35 am - 11:59 pm
EZE
-
STL
18h 24m
2 stops
LATAM Airlines Logo
5:30 pm - 9:45 am
STL
-
EZE
14h 15m
1 stop
$1,153LATAM Airlines
Wed, Mar 25 - Fri, Apr 3
Multiple Airlines Logo
11:55 pm - 9:49 am
EZE
-
STL
35h 54m
3 stops
Multiple Airlines Logo
6:15 am - 9:25 pm
STL
-
EZE
37h 10m
2 stops
$1,219Multiple Airlines
Wed, May 27 - Tue, Aug 4
American Airlines Logo
9:05 pm - 2:06 pm
EZE
-
STL
19h 01m
2 stops
American Airlines Logo
1:26 pm - 7:15 am
STL
-
EZE
15h 49m
2 stops
$1,231American Airlines
Tue, Mar 24 - Fri, Apr 3
Multiple Airlines Logo
1:40 am - 3:11 pm
EZE
-
STL
39h 31m
2 stops
Multiple Airlines Logo
6:15 am - 1:20 am
STL
-
EZE
17h 05m
2 stops
$1,235Multiple Airlines
Thu, Apr 9 - Sun, Apr 12
Multiple Airlines Logo
7:10 am - 3:25 pm
EZE
-
STL
34h 15m
3 stops
Multiple Airlines Logo
4:05 pm - 2:30 pm
STL
-
EZE
20h 25m
2 stops
$1,240Multiple Airlines
Thu, Apr 2 - Tue, Apr 21
American Airlines Logo
8:30 pm - 10:32 am
EZE
-
STL
16h 02m
1 stop
American Airlines Logo
11:06 am - 7:15 am
STL
-
EZE
18h 09m
1 stop
$1,292American Airlines
Thu, Apr 2 - Tue, Apr 21
American Airlines Logo
8:30 pm - 10:32 am
EZE
-
STL
16h 02m
1 stop
American Airlines Logo
12:27 pm - 7:15 am
STL
-
EZE
16h 48m
2 stops
$1,296American Airlines
Thu, Apr 9 - Sun, Apr 12
Multiple Airlines Logo
7:10 am - 3:25 pm
EZE
-
STL
34h 15m
3 stops
Multiple Airlines Logo
4:05 pm - 1:20 am
STL
-
EZE
31h 15m
3 stops
$1,300Multiple Airlines
Wed, May 27 - Tue, Aug 4
Air Canada Logo
4:35 pm - 8:25 pm
EZE
-
STL
53h 50m
3 stops
Air Canada Logo
12:10 pm - 2:30 pm
STL
-
EZE
24h 20m
2 stops
$1,312Air Canada
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 14h 16m.

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

There are around 207 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 44% of flights departing in the morning.

Find deals

Good to know

Cheapest flight$432
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 1,444 direct flights from within Argentina to St. Louis. The most common day for departures is Thursday, 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 8271 reviews
7.8Entertainment
7.2Food
7.9Comfort
8.5Crew
8.1Boarding
Airline reviews

The flight was flying with 30% capacity. The flight my seat from preferred seating to back of the seat. Even though i can understand that this was to balance the flight weight. The flight attendance decided to do the serving near my seat and in the middle , their noices woke me up from sleep , when i realized that the service has ended and when they were going back asked for a coffee, for which they answered they have completed teh service in my location. That really upset me as they woke me up and also rejected the coffee i asked. I ended up landing with a headache, thanks to the crew that screwed up my travel

4.0 OkayGajendra Prasad, Mar 2026
LAN - DTW
Read more Delta reviews

The flight was flying with 30% capacity. The flight my seat from preferred seating to back of the seat. Even though i can understand that this was to balance the flight weight. The flight attendance decided to do the serving near my seat and in the middle , their noices woke me up from sleep , when i realized that the service has ended and when they were going back asked for a coffee, for which they answered they have completed teh service in my location. That really upset me as they woke me up and also rejected the coffee i asked. I ended up landing with a headache, thanks to the crew that screwed up my travel

I wish the inflight entertainment system options were broader, but overall this was a fantastic crew and I can’t express how cheerful, welcoming, and attentive they were.

Delayed. Hot. Passenger next to me was so large I couldn’t move.

Same experience as the flight from Norfolk to Atlanta where people are boarded in zones that don't make sense. People behind you on the plane will get on before you and they take the luggage space on your row.

The boarding process doesn't make sense since some people that will sit behind your rows are boarded before you and then they take up the luggage space above your head. I then have to wait for people to get off the plane before I can go back to get my luggage.

Good flight. Connector flight was delayed so made a short turnaround in Atlanta which was stressful. Otherwise, great crew, Staff in ATL was very informative about the delay and ensured people their connections were fine. Notified the ones that were not. Great communication.

The flight went very well, but the flight attendants didn't serve and food or drinks other than 1st class due to rough air but to be honest it wasn't that bumpy and I felt that they could've at least offered water and coffee perhaps. Also serving 1st class only is a bad look. I've been in 1st class many times and I would've felt that if the turbulence was too rough for the main cabin, it would be too rough for 1st class too.

There was an unruly family behind us that made the short flight miserable!!! The cabin crew did nothing to contain it.

My seatback screen didn’t work so that sucked because that’s what I was going to do on the plane.

Left a few minutes early. Got in 15 minutes early. Very attentive service on board. Very organized boarding.

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)