$602 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 6/13. 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

Mon, May 4 - Wed, May 6
Multiple Airlines Logo
8:25 am - 2:39 pm
EZE
-
STL
32h 14m
1 stop
Multiple Airlines Logo
6:00 am - 10:00 am
STL
-
EZE
26h 00m
2 stops
$1,125Multiple Airlines
Mon, May 4 - Wed, May 6
Multiple Airlines Logo
8:25 am - 2:39 pm
EZE
-
STL
32h 14m
1 stop
Multiple Airlines Logo
6:00 am - 10:00 am
STL
-
EZE
26h 00m
2 stops
$1,126Multiple Airlines
Mon, May 4 - Wed, May 6
Multiple Airlines Logo
8:25 am - 2:39 pm
EZE
-
STL
32h 14m
1 stop
Multiple Airlines Logo
6:00 am - 7:30 pm
STL
-
EZE
35h 30m
1 stop
$1,232Multiple Airlines
Mon, May 4 - Wed, May 6
Multiple Airlines Logo
8:25 am - 2:39 pm
EZE
-
STL
32h 14m
1 stop
Multiple Airlines Logo
6:00 am - 7:30 pm
STL
-
EZE
35h 30m
1 stop
$1,233Multiple Airlines
Sat, May 2 - Wed, May 6
Multiple Airlines Logo
3:48 am - 11:19 pm
EZE
-
STL
21h 31m
2 stops
Multiple Airlines Logo
6:00 am - 7:30 pm
STL
-
EZE
35h 30m
1 stop
$1,250Multiple Airlines
Sat, May 2 - Wed, May 6
Multiple Airlines Logo
3:48 am - 11:19 pm
EZE
-
STL
21h 31m
2 stops
Multiple Airlines Logo
6:00 am - 7:30 pm
STL
-
EZE
35h 30m
1 stop
$1,251Multiple Airlines
Mon, Apr 6 - Wed, Jun 10
American Airlines Logo
8:30 pm - 10:16 am
EZE
-
STL
15h 46m
1 stop
American Airlines Logo
5:25 am - 7:05 am
STL
-
EZE
23h 40m
1 stop
$1,252American Airlines
Mon, Apr 6 - Wed, Jun 10
American Airlines Logo
11:30 pm - 7:30 pm
EZE
-
STL
22h 00m
2 stops
American Airlines Logo
12:45 pm - 7:05 am
STL
-
EZE
16h 20m
2 stops
$1,256American Airlines
Wed, Jun 24 - Sun, Jul 12
Multiple Airlines Logo
4:00 am - 12:21 pm
EZE
-
STL
34h 21m
3 stops
Multiple Airlines Logo
12:10 pm - 6:10 am
STL
-
EZE
40h 00m
3 stops
$1,262Multiple Airlines
Thu, May 7 - Fri, May 29
American Airlines Logo
8:35 pm - 10:16 am
EZE
-
STL
15h 41m
1 stop
American Airlines Logo
5:15 am - 8:05 pm
STL
-
EZE
12h 50m
1 stop
$1,297American 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 $1,125 return. The most popular connection is from New York to St. Louis and KAYAK users have found round-trip deals for as low as $293 in the last 3 days.

Good to know

Cheapest flight$602
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 $1,125 return. The most popular connection is from New York to St. Louis and KAYAK users have found round-trip deals for as low as $293 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 1,861 direct flights from within Argentina to St. Louis. The most common day for departures is Monday, 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 8359 reviews
8.5Crew
7.2Food
8.1Boarding
7.8Entertainment
7.9Comfort
Airline reviews

Long flight but comfortable and not freezing as I have experienced on Hawaiian flights to the islands. They gave us blankets just in case. Nice touch.

8.0 ExcellentLorna, Mar 2026
LAX - LIH
Read more Delta reviews

Long flight but comfortable and not freezing as I have experienced on Hawaiian flights to the islands. They gave us blankets just in case. Nice touch.

I haven’t flown economy in over 20 years but it was not bad. Room by my feet for my bag and seat was roomy enough. Surprised in a good way.

The flight was delayed 90 minutes The Gate was wrong The Restroom on Aircraft was not clean There was a half used water bottle in my seat

Delta is always a wonderful experience. A clean plane and the crew is really friendly.

Too many people are taking up space in the overhead bins with their extra piece of luggage. Since they cannot fit their backpacks or extra luggage piece under the seat in front of them, they store it in the overheads and thus taking up room for other passengers. It wasn’t only one or two persons; more like 12 or 13 passengers.

This was the worse experience. They delayed our flight twice and we still had to find another flight to get home sooner which was alos delayed. Also, the flight attendant named Ginny on DL9890 leaving at 4:13pm on 3/23/26 was extremely rude.

I love Delta the flight attendants were personable and the flight arrived 1/2 earlier thanks expected. All a plus. The gate agent was a bit flustered but even with that I still had a good experience. Her supervisor assisted me.

Wonderful crew, great movie selection and good food. I prefer Airbus to Boeing, much more comfortable

Got to fly my favorite plane, the Boeing 767-400ER, to Milan. The soft blush pink mood lighting during meal service was very beautiful and gorgeous. The service was top-notch, and our flights were on time. I highly recommend Delta.

I am still at the Airport! Delayed Delayed and Delyaed

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