$577 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 5/14. 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

Thu, Sep 10 - Fri, Sep 18
American Airlines Logo
8:45 pm - 2:59 pm
EZE
-
STL
20h 14m
2 stops
American Airlines Logo
10:34 am - 8:50 am
STL
-
EZE
20h 16m
2 stops
$1,221American Airlines
Thu, Sep 10 - Fri, Sep 18
Delta Logo
8:10 pm - 2:38 pm
EZE
-
STL
20h 28m
1 stop
Delta Logo
7:05 pm - 9:45 am
STL
-
EZE
12h 40m
1 stop
$1,228Delta
Wed, Aug 19 - Sun, Aug 23
Air Canada Logo
4:35 pm - 6:42 pm
EZE
-
STL
52h 07m
3 stops
Air Canada Logo
12:10 pm - 2:30 pm
STL
-
EZE
24h 20m
2 stops
$1,407Air Canada
Wed, Aug 19 - Sun, Aug 23
Air Canada Logo
4:35 pm - 6:42 pm
EZE
-
STL
52h 07m
3 stops
Air Canada Logo
12:10 pm - 2:30 pm
STL
-
EZE
24h 20m
2 stops
$1,409Air Canada
Wed, Aug 19 - Sun, Aug 23
Air Canada Logo
4:35 pm - 6:42 pm
EZE
-
STL
52h 07m
3 stops
Air Canada Logo
12:10 pm - 2:30 pm
STL
-
EZE
24h 20m
2 stops
$1,412Air Canada
Wed, Aug 19 - Sun, Aug 23
Air Canada Logo
4:35 pm - 6:42 pm
EZE
-
STL
52h 07m
3 stops
Air Canada Logo
12:10 pm - 2:30 pm
STL
-
EZE
24h 20m
2 stops
$1,414Air Canada
Wed, Aug 19 - Sun, Aug 23
Air Canada Logo
4:35 pm - 6:42 pm
EZE
-
STL
52h 07m
3 stops
Air Canada Logo
12:10 pm - 2:30 pm
STL
-
EZE
24h 20m
3 stops
$1,416Air Canada
Wed, Aug 19 - Sun, Aug 23
Air Canada Logo
4:35 pm - 6:42 pm
EZE
-
STL
52h 07m
3 stops
Air Canada Logo
12:10 pm - 2:30 pm
STL
-
EZE
24h 20m
2 stops
$1,417Air Canada
Wed, Aug 19 - Sun, Aug 23
Air Canada Logo
4:35 pm - 6:42 pm
EZE
-
STL
52h 07m
3 stops
Air Canada Logo
12:10 pm - 2:30 pm
STL
-
EZE
24h 20m
3 stops
$1,418Air Canada
Wed, Aug 19 - Sun, Aug 23
Air Canada Logo
4:35 pm - 6:42 pm
EZE
-
STL
52h 07m
3 stops
Air Canada Logo
12:10 pm - 2:30 pm
STL
-
EZE
24h 20m
3 stops
$1,421Air 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 $1,221 return. The most popular connection is from New York to St. Louis and KAYAK users have found round-trip deals for as low as $296 in the last 3 days.

Good to know

Cheapest flight$577
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 $1,221 return. The most popular connection is from New York to St. Louis and KAYAK users have found round-trip deals for as low as $296 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 2,970 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 8460 reviews
7.8Entertainment
7.2Food
7.9Comfort
8.1Boarding
8.5Crew
Airline reviews

Boarding in Amsterdam is always chaotic. More complicated than needs to be ( boarding pass checked twice, once for general security, then by the airline). The bathrooms on this flight are dirty, and smelly. The food was mediocre at best The crew was decent

6.0 GoodAnonymous, May 2026
AMS - DTW
Read more Delta reviews

Boarding in Amsterdam is always chaotic. More complicated than needs to be ( boarding pass checked twice, once for general security, then by the airline). The bathrooms on this flight are dirty, and smelly. The food was mediocre at best The crew was decent

Seats in Delta Main are unbelievably close to the seat in front of. Hard to get a backpack under the seat.

Round trip flight to Canada and back to the US was smooth and efficient.

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

Spanish speaker flight attendants were incredibly rude. A male flight attendant named Allen, grabbed my bag out of the overhead bin and moved it without my permission. When I asked what he was doing, he informed me that the overhead bins were public space? It would be easy to ignore this comment, as you don’t know the whole story, but the flight attendants were militant and rude. Delta, you can do better!

In ATL they have two sets of departure screens. Follow what is on your airline's departure board - the ATL Airport Authority departure board had completely incorrect details about the gate assignment for my flight, which would have made me miss boarding.

Flight was delayed it was hot while sitting on the plane, one engine was working on the plane until they had to do some jimmy rigging down the runway in order for the other engine to charge up. It was ridiculous

The flight was very good and the staff was very friendly and helpful!

The only thing I would say is we tried to get on a standby earlier flight, but with our fair we couldn’t. That seems senseless to leave with open seats..

Very easy to use and convenient, you can perform any action within the same portal

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