$1,258 Find Cheap Flights from Argentina to St. Louis

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight to St. Louis departing on 7/1. 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

Wed, Jul 1 - Tue, Jul 14
LATAM Airlines Logo
8:10 pm - 9:46 am
EZE
-
STL
15h 36m
1 stop
LATAM Airlines Logo
6:58 pm - 9:45 am
STL
-
EZE
12h 47m
1 stop
$1,222LATAM Airlines
Wed, Jul 1 - Tue, Jul 14
Delta Logo
8:10 pm - 12:34 pm
EZE
-
STL
18h 24m
1 stop
Delta Logo
1:22 pm - 9:40 am
STL
-
EZE
18h 18m
2 stops
$1,228Delta
Thu, Oct 1 - Sat, Oct 17
United Airlines Logo
9:00 pm - 10:09 am
EZE
-
STL
15h 09m
1 stop
United Airlines Logo
3:05 pm - 8:00 am
STL
-
EZE
14h 55m
1 stop
$1,258United Airlines
Thu, Oct 1 - Sat, Oct 17
United Airlines Logo
9:00 pm - 3:38 pm
EZE
-
STL
20h 38m
2 stops
United Airlines Logo
3:05 pm - 8:00 am
STL
-
EZE
14h 55m
1 stop
$1,263United Airlines
Thu, Oct 1 - Sat, Oct 17
American Airlines Logo
8:25 pm - 2:45 pm
EZE
-
STL
20h 20m
2 stops
American Airlines Logo
10:13 am - 7:15 am
STL
-
EZE
19h 02m
2 stops
$1,271American Airlines
Sun, Jun 14 - Sat, Jul 4
Multiple Airlines Logo
3:55 am - 2:37 pm
EZE
-
STL
36h 42m
2 stops
Multiple Airlines Logo
6:30 am - 10:25 pm
STL
-
EZE
37h 55m
2 stops
$1,281Multiple Airlines
Mon, Jun 15 - Sat, Jul 4
United Airlines Logo
9:00 pm - 10:07 am
EZE
-
STL
15h 07m
1 stop
United Airlines Logo
11:10 am - 8:00 am
STL
-
EZE
18h 50m
1 stop
$1,306United Airlines
Mon, Jun 15 - Sat, Jul 4
United Airlines Logo
9:00 pm - 10:07 am
EZE
-
STL
15h 07m
1 stop
United Airlines Logo
10:20 am - 8:00 am
STL
-
EZE
19h 40m
2 stops
$1,311United Airlines
Mon, Jun 15 - Sat, Jul 4
Multiple Airlines Logo
7:35 am - 12:06 pm
EZE
-
STL
30h 31m
3 stops
Multiple Airlines Logo
2:40 pm - 3:45 am
STL
-
EZE
35h 05m
2 stops
$1,325Multiple Airlines
Sun, Jun 14 - Sat, Jul 4
Multiple Airlines Logo
3:55 am - 12:06 pm
EZE
-
STL
34h 11m
3 stops
Multiple Airlines Logo
8:55 am - 9:25 pm
STL
-
EZE
34h 30m
3 stops
$1,326Multiple 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.

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 09m.

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

There are around 377 direct flights from within Argentina to St. Louis every day. Most flights depart in the afternoon, with 34% of flights departing in the afternoon.

Find deals

Good to know

Cheapest flight$1,222
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 2,635 direct flights from within Argentina to St. Louis. The most common day for departures is Sunday, 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 8454 reviews
7.2Food
7.8Entertainment
8.1Boarding
7.8Comfort
8.5Crew
Airline reviews

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.

10.0 ExcellentAnonymous, May 2026
CDG - SEA
Read more Delta reviews

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.

Bus to plane was delayed for no apparent reason and our luggage was still on the belt when they shut it off. Took about 20 minutes to turn it back on to get our luggage.

Every flight was delayed except the last one. One layover turned into two. Travel time extended by three hours. No compensation offered. Repeatedly asked if I'd like to cancel my flight for a partial refund.

It was a pleasant surprise to have complimentary Wi-Fi on the flight

Much better than Latam, the worse airline company ever. I hope I don't have the need to fly Latam ever in my life again.

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)