$542 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 6/16. 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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% 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, Jul 8 - Mon, Jul 13
Multiple Airlines Logo
11:25 pm - 2:23 pm
EZE
-
STL
40h 58m
2 stops
Multiple Airlines Logo
6:30 am - 2:35 am
STL
-
EZE
18h 05m
1 stop
$1,203Multiple Airlines
Mon, Sep 28 - Thu, Oct 22
Delta Logo
4:45 pm - 12:53 pm
EZE
-
STL
22h 08m
2 stops
Delta Logo
5:30 pm - 9:45 am
STL
-
EZE
14h 15m
1 stop
$1,215Delta
Wed, Jul 8 - Mon, Jul 13
Delta Logo
8:10 pm - 8:19 am
EZE
-
STL
14h 09m
1 stop
Delta Logo
6:00 am - 9:45 am
STL
-
EZE
25h 45m
1 stop
$1,228Delta
Tue, Sep 29 - Fri, Oct 23
Delta Logo
8:10 pm - 10:41 am
EZE
-
STL
16h 31m
1 stop
Delta Logo
2:18 pm - 9:40 am
STL
-
EZE
17h 22m
2 stops
$1,249Delta
Sun, Sep 27 - Thu, Oct 22
United Airlines Logo
9:00 pm - 10:10 am
EZE
-
STL
15h 10m
1 stop
United Airlines Logo
11:10 am - 8:00 am
STL
-
EZE
18h 50m
1 stop
$1,258United Airlines
Mon, Sep 28 - Fri, Oct 23
Delta Logo
8:10 pm - 8:06 am
EZE
-
STL
13h 56m
1 stop
Delta Logo
3:42 pm - 9:40 am
STL
-
EZE
15h 58m
2 stops
$1,263Delta
Sun, Sep 27 - Fri, Oct 23
United Airlines Logo
9:00 pm - 10:10 am
EZE
-
STL
15h 10m
1 stop
United Airlines Logo
3:07 pm - 8:00 am
STL
-
EZE
14h 53m
1 stop
$1,301United Airlines
Sun, Sep 27 - Sat, Oct 24
LATAM Airlines Logo
12:15 pm - 8:06 am
EZE
-
STL
21h 51m
2 stops
LATAM Airlines Logo
5:30 pm - 11:36 pm
STL
-
EZE
28h 06m
2 stops
$1,326LATAM Airlines
Thu, Oct 1 - Fri, Oct 23
Multiple Airlines Logo
9:00 pm - 2:11 pm
EZE
-
STL
19h 11m
2 stops
Multiple Airlines Logo
1:29 pm - 8:00 am
STL
-
EZE
16h 31m
2 stops
$1,333Multiple Airlines
Sun, Jun 14 - Sun, Jun 21
American Airlines Logo
10:35 pm - 10:34 am
EZE
-
STL
13h 59m
1 stop
American Airlines Logo
5:16 am - 8:15 pm
STL
-
EZE
12h 59m
1 stop
$1,377American 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 $1,203 return. The most popular connection is from New York to St. Louis and KAYAK users have found round-trip deals for as low as $310 in the last 3 days.

Find deals

Good to know

Cheapest flight$542
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 $1,203 return. The most popular connection is from New York to St. Louis and KAYAK users have found round-trip deals for as low as $310 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 3,610 direct flights from within Argentina to St. Louis. The most common day for departures is Sunday, with 19% 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 8455 reviews
7.8Comfort
7.8Entertainment
8.5Crew
7.2Food
8.1Boarding
Airline reviews

I continue to be satisfied with Delta’s excellent service out of LGA. The digit id works well and gets me through security in no time. Whenever possible, I choose Delta.

10.0 Excellentangela, May 2026
LGA - PBI
Read more Delta reviews

I continue to be satisfied with Delta’s excellent service out of LGA. The digit id works well and gets me through security in no time. Whenever possible, I choose Delta.

Was revoked with Jet Blue due to delay from Kenya Air

Enjoyed it very much. Especially liked the free WiFi that Delta offers.

Smooth flight. Left on time, and got in 15 minutes early. Onboard video was great

Much better than I expected. I had an economy ticket so I was really happy the flight was so comfy and the service so generous. Passengers were all polite too.

For some reason, TSA Atlanta didn’t have my bag on the flight on time and they don’t have to provide Delta a reason for that.

It took so long to do a baggage drop and it was bad enough. I had to go to the extreme end of the terminal because it’s a USA flight and go all the way back to the center indigo to security.

WiFi didn’t work on two of four planes. Flight attendants were not overly friendly or welcoming. Planes were extremely slow to board and deplane.

Delta does a great job with entertainment and free wifi. I can still be in touch with my colleagues while in the air.

Aside from a completely packed plane, I really have no complaints.

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)