$925 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 11/12. 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

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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, Nov 12 - Tue, Dec 2
American Airlines Logo
10:25 pm - 10:39 amEZE-STL
15h 14m1 stop
American Airlines Logo
7:00 am - 8:20 amSTL-EZE
22h 20m1 stop
$925American Airlines
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Wed, Nov 12 - Tue, Dec 2
American Airlines Logo
11:20 pm - 1:17 pmEZE-STL
16h 57m2 stops
American Airlines Logo
1:20 pm - 9:00 amSTL-EZE
16h 40m2 stops
$930American Airlines
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Tue, Nov 11 - Tue, Dec 2
LATAM Airlines Logo
2:30 am - 8:10 amEZE-STL
32h 40m2 stops
LATAM Airlines Logo
4:50 pm - 1:45 pmSTL-EZE
17h 55m2 stops
$1,011LATAM Airlines
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Wed, Nov 12 - Tue, Dec 2
Air Canada Logo
4:45 pm - 3:29 pmEZE-STL
25h 44m2 stops
Air Canada Logo
4:05 pm - 3:10 pmSTL-EZE
20h 05m2 stops
$1,057Air Canada
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Tue, Nov 11 - Tue, Dec 2
 Logo
2:40 am - 6:00 pmEZE-STL
18h 20m2 stops
 Logo
6:00 am - 7:30 pmSTL-EZE
34h 30m1 stop
$1,157
Find Deal
Wed, Nov 12 - Tue, Dec 2
Delta Logo
8:55 pm - 10:49 amEZE-STL
16h 54m1 stop
Delta Logo
1:30 pm - 9:00 amSTL-EZE
16h 30m1 stop
$1,219Delta
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Wed, Nov 12 - Tue, Dec 2
 Logo
7:35 am - 11:01 amEZE-STL
30h 26m3 stops
 Logo
4:05 pm - 3:10 pmSTL-EZE
20h 05m2 stops
$1,221
Find Deal
Tue, Sep 23 - Tue, Sep 30
Delta Logo
8:10 pm - 12:21 pmEZE-STL
18h 11m1 stop
Delta Logo
1:26 pm - 9:45 amSTL-EZE
18h 19m1 stop
$1,257Delta
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Mon, Sep 22 - Tue, Sep 30
LATAM Airlines Logo
3:55 am - 8:14 amEZE-STL
30h 19m2 stops
LATAM Airlines Logo
3:36 pm - 5:11 pmSTL-EZE
23h 35m2 stops
$1,278LATAM Airlines
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Wed, Nov 12 - Tue, Dec 2
Air Canada Logo
4:45 pm - 3:46 pmEZE-STL
26h 01m3 stops
Air Canada Logo
4:05 pm - 3:10 pmSTL-EZE
20h 05m2 stops
$2,083Air Canada
Find Deal
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 16h 16m.

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

There are around 214 direct flights from within Argentina to St. Louis every day. Most flights depart in the morning, with 6:00 am the most common departure time and 52% of flights departing in the morning.

Good to know

Low seasonMarch
Cheapest flight$925
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly and prices are also 19% lower on average.
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.

  • What is the cheapest day to fly to St. Louis?

    Based on KAYAK data, the cheapest day to fly to St. Louis is Monday where round-trip tickets can be as cheap as $958. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $1,128 on average.

  • 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.

  • What is the cheapest time of day to fly to St. Louis?

    The cheapest time of day to fly to St. Louis is generally in the morning, when round-trip flights cost $958 on average. The most expensive time of day to fly to St. Louis is generally at night, which is peak travel time and where the average cost of a ticket is $1,171.

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

    Each week there are around 1,497 direct flights from within Argentina to St. Louis. The most common day for departures is Monday, 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 7979 reviews
8.5Crew
7.3Food
8.2Boarding
7.9Comfort
7.9Entertainment
Airline reviews

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

4.0 Okaypuravi, Aug 2025LGA - STL
Read more Delta reviews

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

The flight crew was friendly. I tried to adjust my seat online ahead of time but no option existed without additional fees. My friend asked at the gate about a seat change and was able to make it happen. That was great! The flight crew moved a very tall gentleman and his companion which allowed us to have more space which was nice. Overall, good experience. Appreciated the blanket and pillow.

Three seats in first class were broken and while they were able to still acommodate us it was looking very touch and go and they had others they could not acommodate

Mechanic delay in addition to a 2 hour change in takeoff time was frustrating.

Delayed due to thunderstorms and no in-flight service due to rough weather — both of which are out of Delta’s control. Flight was good overall.

The flight attendants in SLC were rude. I arrived 40 minutes early to gate. Ticket said I needed check in for seat assignments and tried check in and attendants said they weren’t doing it. And proceeded to never call me to give me a ticket so when time to board I received the very last seat. Please relay to employees to do their job better..,

On this flight I felt the food offering was not as complete as on previous flights. The tomato salad was a bit off and there was nothing additional such a bread or butter. The breakfast was only one option, so you either ate what they had or ate nothing. The crew was efficient, but most seemed frustrated throughout the flight. The flight arrived early and was obstacle-free, so I’m overall quite happy, but the shine in the rest of the experience just wasn’t there.

Our seats were comfortable with adequate room to stretch out and recline. The food was tasty and served it just the right intervals. Our flight attendant was extra attentive and friendly. Flight arrived early. And the most turbulence. Overall that’s good and experience for an 11 hour flight as can be hoped for

The seats got pretty uncomfortable pretty fast. The armrests are bigger than on other planes, so I had less room in the actual seat. My butt hurt by the end of the flight. :/ comfort was the primary issue. The crew were fantastic!

I believe that a four-hour trip should have a meal. Delta had none.

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
Glencoe
Shrewsbury

Everything you need to know for your flight to St. Louis

Information on the airport you'll fly into in St. Louis

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