$526 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 8/24. 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

Thu, Jun 25 - Thu, Jul 2
Delta Logo
1:10 pm - 9:46 am
EZE
-
STL
22h 36m
2 stops
Delta Logo
3:45 pm - 9:45 am
STL
-
EZE
16h 00m
1 stop
$1,174Delta
Thu, Jun 25 - Thu, Jul 2
Delta Logo
8:10 pm - 8:16 am
EZE
-
STL
14h 06m
1 stop
Delta Logo
1:39 pm - 9:45 am
STL
-
EZE
18h 06m
1 stop
$1,445Delta
Wed, Jun 24 - Thu, Jul 2
Multiple Airlines Logo
2:30 am - 12:21 pm
EZE
-
STL
35h 51m
3 stops
Multiple Airlines Logo
8:55 am - 3:40 pm
STL
-
EZE
28h 45m
3 stops
$1,608Multiple Airlines
Thu, Jun 25 - Thu, Jul 2
Multiple Airlines Logo
7:45 am - 12:21 pm
EZE
-
STL
30h 36m
2 stops
Multiple Airlines Logo
8:55 am - 3:40 pm
STL
-
EZE
28h 45m
3 stops
$1,721Multiple Airlines
Thu, May 7 - Sun, May 10
Air Canada Logo
4:35 pm - 8:25 pm
EZE
-
STL
29h 50m
2 stops
Air Canada Logo
1:05 pm - 2:30 pm
STL
-
EZE
23h 25m
2 stops
$1,810Air Canada
Thu, May 7 - Sun, May 10
Air Canada Logo
4:35 pm - 8:25 pm
EZE
-
STL
29h 50m
2 stops
Air Canada Logo
1:05 pm - 2:30 pm
STL
-
EZE
23h 25m
2 stops
$1,811Air Canada
Thu, May 7 - Sun, May 10
Air Canada Logo
4:35 pm - 8:25 pm
EZE
-
STL
29h 50m
2 stops
Air Canada Logo
1:05 pm - 2:30 pm
STL
-
EZE
23h 25m
2 stops
$1,815Air Canada
Thu, May 7 - Sun, May 10
Air Canada Logo
4:35 pm - 8:25 pm
EZE
-
STL
29h 50m
2 stops
Air Canada Logo
1:05 pm - 2:30 pm
STL
-
EZE
23h 25m
2 stops
$1,819Air Canada
Thu, May 7 - Sun, May 10
Air Canada Logo
4:35 pm - 8:25 pm
EZE
-
STL
29h 50m
2 stops
Air Canada Logo
1:05 pm - 2:30 pm
STL
-
EZE
23h 25m
3 stops
$1,823Air Canada
Thu, May 7 - Sun, May 10
Air Canada Logo
4:35 pm - 8:25 pm
EZE
-
STL
29h 50m
2 stops
Air Canada Logo
1:05 pm - 2:30 pm
STL
-
EZE
23h 25m
3 stops
$1,824Air 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.

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 $1,174 return. The most popular connection is from New York to St. Louis and KAYAK users have found round-trip deals for as low as $295 in the last 3 days.

Good to know

Cheapest flight$526
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 $1,174 return. The most popular connection is from New York to St. Louis and KAYAK users have found round-trip deals for as low as $295 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 1,746 direct flights from within Argentina to St. Louis. The most common day for departures is Friday, 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 8430 reviews
8.5Crew
7.8Entertainment
7.2Food
8.1Boarding
7.9Comfort
Airline reviews

This wasn't my experience with Delta. It was just the Pegasus flight. Seats were very hard. Staff was kinda rough. Not very nice. Charged me for snacks. For a 4 hour flight I would've expected more.

4.0 OkayAnonymous, Apr 2026
MYR - ATL
Read more Delta reviews

This wasn't my experience with Delta. It was just the Pegasus flight. Seats were very hard. Staff was kinda rough. Not very nice. Charged me for snacks. For a 4 hour flight I would've expected more.

Crew was nice, meal was good. Entertainment had to be rebooted 3 times and still did not work. Turns out there was residue on screen, it needed to be cleaned to prevent the touchscreen buttons from continuously activating. I had entertainment for the last 45 minutes of a 5 hour 45 minute flight. Really unacceptable for first class. Flight attendent indicated your cleaning solution creates this problem. Seems as if this is widely known, you should be using a different product or cleaning better. Really really disappointing which simply added to the wi fi on your planes with reliably never ever works.

The baggage belt was not updated on the Delta App and was displayed on the wrong belt board. Was not expecting this to happen.

The plan was delayed and left DC 90 minutes late. However, it showed a 20 minute delay on the delta app, then a 12 min delay. It turned out to be an hour delay. I found out where the plane was with flightaware. Stop keeping customers in the dark about what is going on.

Everything went smoothly, although the usual gripes about airline travel were still present: the boarding process is inefficient, the snack selection is limited, and so on. Since there was extra space on the flight, the gate agent rearranged many people's seats to put people on the aisles and windows, leaving the middle seats empty, as much as possible, which was pretty great.

Landed without a gate ready. Plane is extremely old and dirty.

All the amenities was wonderful, if they could keep their prices that low. I'd fly with them all the time.

Very old plane with no inflight entertainment. I purchased the internet pass and it was nearly unusable.

My tray was broken so i had no place to work or eat except my lap. Flight attendant said I would get an email with some credit or miles, it was a complete waste of time as I could only function at about 20% of normal. I have not received anything yet.

Short trip, no food and therefore no expectation for much interaction with staff who were pleasant and professional. My critique is on comfort of the seats. Exit rows and comfort seats do not provide enough personal space for 3 side-by-side seats, especially when in the middle row. Some passengers are not considerate of the middle seat and there should be signs that state something to the effect of: "please consider giving middle seats use of the armrests."

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