STL - EZE

$352 Find Cheap Flights from St. Louis to Buenos Aires Ministro Pistarini

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Buenos Aires departing on 4/25. 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 Buenos Aires Ministro Pistarini Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Buenos Aires, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Buenos Aires, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$1,034
LATAM Airlines
Tue 6/23Tue 6/30
STL - EZE • 2 stops
Cheapest one-way
$352
Multiple Airlines
Sat 4/25
STL - EZE • 3 stops
Top airlines
LATAM Airlines
Cheapest • from $1,034 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between St. Louis and Buenos Aires. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Miami (MIA)
Cheapest • Avg $1,281 (round-trip)
Houston (IAH)
Shortest trip • 13h 26m (one-way)
Insights
Insights
Insights
Insights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Buenos Aires!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from St. Louis to Buenos Aires (STL-EZE)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Buenos Aires 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 St. Louis to Buenos Aires

Tue, Jun 23 - Tue, Jun 30
LATAM Airlines Logo
2:18 pm - 9:20 am
STL
-
EZE
17h 02m
2 stops
LATAM Airlines Logo
8:10 pm - 3:58 pm
EZE
-
STL
21h 48m
1 stop
$1,034LATAM Airlines
Tue, Jun 23 - Tue, Jun 30
LATAM Airlines Logo
2:18 pm - 9:20 am
STL
-
EZE
17h 02m
2 stops
LATAM Airlines Logo
12:15 pm - 10:45 am
EZE
-
STL
24h 30m
2 stops
$1,062LATAM Airlines
Tue, Jun 23 - Tue, Jun 30
LATAM Airlines Logo
1:30 pm - 9:45 am
STL
-
EZE
18h 15m
1 stop
LATAM Airlines Logo
8:10 pm - 8:07 am
EZE
-
STL
13h 57m
1 stop
$1,065LATAM Airlines
Mon, May 18 - Thu, May 21
LATAM Airlines Logo
7:01 pm - 9:45 am
STL
-
EZE
12h 44m
1 stop
LATAM Airlines Logo
8:10 pm - 9:44 am
EZE
-
STL
15h 34m
1 stop
$1,119LATAM Airlines
Tue, Apr 14 - Tue, Apr 21
United Airlines Logo
10:09 am - 8:00 am
STL
-
EZE
19h 51m
1 stop
United Airlines Logo
9:00 pm - 4:08 pm
EZE
-
STL
21h 08m
1 stop
$1,122United Airlines
Tue, Apr 14 - Tue, Apr 21
United Airlines Logo
11:15 am - 8:00 am
STL
-
EZE
18h 45m
2 stops
United Airlines Logo
9:00 pm - 12:22 pm
EZE
-
STL
17h 22m
2 stops
$1,126United Airlines
Sat, Jul 18 - Sat, Jul 25
LATAM Airlines Logo
7:20 am - 6:10 am
STL
-
EZE
20h 50m
2 stops
LATAM Airlines Logo
8:10 pm - 3:58 pm
EZE
-
STL
21h 48m
1 stop
$1,127LATAM Airlines
Tue, Mar 31 - Thu, May 7
United Airlines Logo
10:10 am - 8:00 am
STL
-
EZE
19h 50m
1 stop
United Airlines Logo
9:00 pm - 10:30 pm
EZE
-
STL
27h 30m
1 stop
$1,131United Airlines
Mon, May 18 - Thu, May 21
LATAM Airlines Logo
5:15 pm - 11:30 am
STL
-
EZE
16h 15m
2 stops
LATAM Airlines Logo
7:35 am - 11:59 pm
EZE
-
STL
18h 24m
2 stops
$1,135LATAM Airlines
Tue, Mar 31 - Thu, May 7
Air Canada Logo
4:05 pm - 2:30 pm
STL
-
EZE
20h 25m
2 stops
Air Canada Logo
4:35 pm - 8:25 pm
EZE
-
STL
29h 50m
2 stops
$1,142Air Canada
Booking Insights

KAYAK's insights & trends for St. Louis to Buenos Aires flights

Get data-powered insights and trends into flights from St. Louis to Buenos Aires to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from St. Louis to Buenos Aires Ministro Pistarini Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from St. Louis to Buenos Aires Ministro Pistarini Airport departing in June.

Good to know

Low seasonJune
Cheapest flight$352
Best time to beat the crowds with an average 17% drop in price.
Most popular time to fly with an average 11% increase in price.
Flight from St. Louis to Buenos Aires Ministro Pistarini

When to book flights from St. Louis to Buenos Aires

Are your dates flexible? Find out the best times to travel from St. Louis to Buenos Aires based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking St. Louis to Buenos Aires Ministro Pistarini flights

  • What is the cheapest flight from St. Louis to Buenos Aires Ministro Pistarini Airport?

    In the last 3 days, the lowest price for a flight from St. Louis to Buenos Aires Ministro Pistarini Airport was $352 for a one-way ticket and $1,034 for a round-trip.

  • Do I need a passport to fly between St. Louis and Buenos Aires Ministro Pistarini?

    A passport is required to fly from St. Louis to Buenos Aires Ministro Pistarini.

  • Which aircraft models fly most regularly from St. Louis to Buenos Aires Ministro Pistarini?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Buenos Aires Ministro Pistarini?

    SkyTeam is the only airline alliance operating flights between St. Louis and Buenos Aires Ministro Pistarini.

  • How does KAYAK find such low prices on flights from St. Louis to Buenos Aires Ministro Pistarini?

    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 from St. Louis to Buenos Aires Ministro Pistarini.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Buenos Aires Ministro Pistarini?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Buenos Aires Ministro Pistarini from 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 from St. Louis to Buenos Aires Ministro Pistarini?

    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 Buenos Aires Ministro Pistarini with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and EZE can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Buenos Aires Ministro Pistarini?

    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 Buenos Aires Ministro Pistarini from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from St. Louis to Buenos Aires

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Buenos Aires. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Buenos Aires? 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 8248 reviews
7.9Comfort
8.5Crew
7.8Entertainment
8.1Boarding
7.2Food
Airline reviews

The whole experience was excellent. As it most often is with Delta

10.0 ExcellentRay, Mar 2026
LGA - MCO
Read more Delta reviews

The whole experience was excellent. As it most often is with Delta

Cabin was not pressurized properly. Several passengers had respiratory difficulties.

I was happy that I was able to get a last minute flight but unfortunately my seat was a middle seat. Even with Delta Comfort I wasn't comfortable

There’s not much to say about a one hour flight. This is a connection from LA to RNO that I missed the previous night due to a mechanical check delay on my originating flight from JFK to LAX. The short flight itself was fine. Instructions from the pilot and crew were per usual. The coffee was barely lukewarm, which possibly was purposeful so we would down it quickly. Bags were already on carousel upon reaching baggage claim, which was excellent.

Flight was warm for first few hours and quite rough

Seat was extremely hard which made even a short 1 hour 20 minute flight fairly uncomfortable.

Everything was good except wifi and a leaking drink chiller. The floor was all wet and my bag was soaked. Did not notice until debarking. Have not heard back from Delta. Even though this was leg one of an international flight in first class, they denied access to their Sky Club - very disappointing!

The staff was fine. The plane was extremely tight, and I paid for the wifi and it did not work at all. I was actually going to ask for a refund.

two hour delay and the Delta representative on the PA system was unable to understand

An awesome flight crew. FC seat cushion just doesn’t cut it for a 3+ hour flight.

Everything you need to know for your flight from St. Louis to Buenos Aires

Information on your arrival and departure airports