STL - EZE

$482 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 4/10. 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
$958
LATAM Airlines
Tue 3/24Tue 3/31
STL - EZE • 1 stop
Cheapest one-way
$482
Multiple Airlines
Fri 4/10
STL - EZE • 3 stops
Top airlines
LATAM Airlines
Cheapest • from $958 (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 31m (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, Mar 24 - Tue, Mar 31
LATAM Airlines Logo
5:21 pm - 9:00 am
STL
-
EZE
13h 39m
1 stop
LATAM Airlines Logo
11:55 am - 9:05 am
EZE
-
STL
23h 10m
2 stops
$958LATAM Airlines
Tue, Mar 24 - Tue, Mar 31
LATAM Airlines Logo
6:00 am - 9:35 am
STL
-
EZE
25h 35m
2 stops
LATAM Airlines Logo
11:55 am - 9:05 am
EZE
-
STL
23h 10m
2 stops
$971LATAM Airlines
Tue, Mar 31 - Thu, May 7
United Airlines Logo
6:30 am - 8:00 am
STL
-
EZE
23h 30m
2 stops
United Airlines Logo
9:00 pm - 9:08 pm
EZE
-
STL
26h 08m
2 stops
$996United Airlines
Mon, Jun 1 - Mon, Jun 15
LATAM Airlines Logo
5:15 pm - 9:45 am
STL
-
EZE
14h 30m
1 stop
LATAM Airlines Logo
8:10 pm - 8:07 am
EZE
-
STL
13h 57m
1 stop
$1,038LATAM Airlines
Tue, Mar 31 - Thu, May 7
LATAM Airlines Logo
5:21 pm - 9:45 am
STL
-
EZE
14h 24m
1 stop
LATAM Airlines Logo
8:10 pm - 9:44 am
EZE
-
STL
15h 34m
1 stop
$1,043LATAM Airlines
Mon, Jun 1 - Mon, Jun 15
LATAM Airlines Logo
7:01 pm - 9:45 am
STL
-
EZE
12h 44m
1 stop
LATAM Airlines Logo
1:20 pm - 10:45 am
EZE
-
STL
23h 25m
2 stops
$1,051LATAM 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 - 8:05 pm
EZE
-
STL
29h 30m
3 stops
$1,060Air Canada
Thu, Jul 23 - Mon, Aug 3
LATAM Airlines Logo
5:30 pm - 9:45 am
STL
-
EZE
14h 15m
1 stop
LATAM Airlines Logo
8:10 pm - 8:07 am
EZE
-
STL
13h 57m
1 stop
$1,065LATAM Airlines
Thu, Jul 23 - Mon, Aug 3
LATAM Airlines Logo
5:30 pm - 9:45 am
STL
-
EZE
14h 15m
1 stop
LATAM Airlines Logo
7:35 am - 11:38 pm
EZE
-
STL
18h 03m
2 stops
$1,082LATAM Airlines
Fri, Jul 24 - Mon, Aug 3
LATAM Airlines Logo
5:30 pm - 12:22 pm
STL
-
EZE
16h 52m
2 stops
LATAM Airlines Logo
8:10 pm - 8:07 am
EZE
-
STL
13h 57m
1 stop
$1,090LATAM Airlines
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.

Which airlines provide the cheapest flights from St. Louis to Buenos Aires Ministro Pistarini?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from St. Louis to Buenos Aires Ministro Pistarini were found on LATAM Airlines ($958) and United Airlines ($996).

Find deals

Good to know

Cheapest flight$482
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 $482 for a one-way ticket and $958 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 8237 reviews
7.2Food
8.1Boarding
7.8Entertainment
8.5Crew
7.9Comfort
Airline reviews

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!

6.0 GoodAnonymous, Feb 2026
RDU - SEA
Read more Delta reviews

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.

2+hrs delay without any reason provided and a cramped flight

We waited an hour on the runway to get a gate in Orlando

Flight was delayed by 3-hours and their fix was… complimentary pretzels.

Flight was delayed due to crew being not on time

Flight crew issues delayed my flight by 2 1/2 hours. Causing me to miss my connection.

The staff on board and gate was nice - a welcome change from the usual. We also arrived early, which was a great benefit, given that it takes 30 minutes plus to get bags at SRQ.

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

Information on your arrival and departure airports

St. Louis (STL)
Ministro Pistarini (EZE)