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Cheap flights from St. Louis to Buenos Aires from $1,135

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Buenos Aires departing on 9/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from St. Louis to Buenos Aires

Cheap round-trip flights

These are some of the best round-trip flight deals from St. Louis to Buenos Aires that have been recently found on momondo from popular airlines, departing in the coming months.
LATAM Airlines Logo
5:40 pm - 5:00 pmSTL-AEP
21h 20m2 stops
LATAM Airlines Logo
5:00 pm - 10:40 amAEP-STL
19h 40m2 stops
$1,135LATAM Airlines
Find Deal
Thu, Sep 4 - Fri, Sep 12
LATAM Airlines Logo
7:05 pm - 6:35 pmSTL-AEP
21h 30m2 stops
LATAM Airlines Logo
10:55 pm - 8:06 amAEP-STL
35h 11m2 stops
$1,219LATAM Airlines
Find Deal
Sun, Aug 17 - Sat, Aug 23
LATAM Airlines Logo
3:40 pm - 5:00 pmSTL-AEP
23h 20m2 stops
LATAM Airlines Logo
5:00 pm - 11:54 amAEP-STL
20h 54m2 stops
$1,245LATAM Airlines
Find Deal
Fri, May 30 - Fri, Jun 6
 Logo
7:30 am - 2:30 pmSTL-AEP
29h 00m3 stops
 Logo
3:40 am - 11:25 amAEP-STL
33h 45m3 stops
$1,435
Find Deal
Fri, May 30 - Thu, Jun 5
Air Canada Logo
9:15 am - 5:20 pmSTL-AEP
30h 05m2 stops
Air Canada Logo
1:40 pm - 8:00 pmAEP-STL
32h 20m2 stops
$1,777Air Canada
Find Deal
Sat, Aug 16 - Sat, Aug 23
GOL Logo
5:18 am - 1:20 pmSTL-AEP
30h 02m2 stops
GOL Logo
3:40 am - 11:59 pmAEP-STL
22h 19m2 stops
$1,782GOL
Find Deal
Sat, Aug 16 - Fri, Aug 22
 Logo
7:06 pm - 12:00 pmSTL-AEP
38h 54m2 stops
 Logo
3:40 am - 11:59 pmAEP-STL
22h 19m2 stops
$1,797
Find Deal
Fri, May 30 - Thu, Jun 5
Delta Logo
1:30 pm - 1:15 pmSTL-AEP
21h 45m2 stops
Delta Logo
6:20 am - 8:49 pmAEP-STL
17h 29m2 stops
$4,945Delta
Find Deal
Tue, Sep 2 - Tue, Nov 4
Air Canada Logo
1:30 pm - 5:20 pmSTL-AEP
25h 50m2 stops
Air Canada Logo
1:35 pm - 3:26 pmAEP-STL
28h 51m2 stops
$5,123Air Canada
Find Deal
Wed, Sep 3 - Mon, Nov 3
Delta Logo
3:30 pm - 1:15 pmSTL-AEP
19h 45m2 stops
Delta Logo
6:20 am - 11:39 pmAEP-STL
20h 19m2 stops
$7,291Delta
Find Deal
Thu, Sep 4 - Thu, Nov 6

LATAM Airlines flights from St. Louis to Buenos Aires Jorge Newbery Airport

Our best LATAM Airlines deals on St. Louis to Buenos Aires Jorge Newbery Airport flight tickets
LATAM Airlines
Sep 4
STL5:40 pmLambert-St Louis
21h 20m
2 stops
AEP5:00 pmBuenos Aires Jorge Newbery
Sep 12
AEP5:00 pmBuenos Aires Jorge Newbery
19h 40m
2 stops
STL10:40 amLambert-St Louis
LATAM Airlines
Aug 17
STL7:05 pmLambert-St Louis
21h 30m
2 stops
AEP6:35 pmBuenos Aires Jorge Newbery
Aug 23
AEP10:55 pmBuenos Aires Jorge Newbery
35h 11m
2 stops
STL8:06 amLambert-St Louis
LATAM Airlines
May 30
STL3:40 pmLambert-St Louis
23h 20m
2 stops
AEP5:00 pmBuenos Aires Jorge Newbery
Jun 6
AEP5:00 pmBuenos Aires Jorge Newbery
20h 54m
2 stops
STL11:54 amLambert-St Louis

Delta flights from St. Louis to Buenos Aires Jorge Newbery Airport

Our best Delta deals on St. Louis to Buenos Aires Jorge Newbery Airport flight tickets
Delta
Sep 2
STL1:30 pmLambert-St Louis
21h 45m
2 stops
AEP1:15 pmBuenos Aires Jorge Newbery
Nov 4
AEP6:20 amBuenos Aires Jorge Newbery
17h 29m
2 stops
STL8:49 pmLambert-St Louis
Delta
Sep 4
STL3:30 pmLambert-St Louis
19h 45m
2 stops
AEP1:15 pmBuenos Aires Jorge Newbery
Nov 6
AEP6:20 amBuenos Aires Jorge Newbery
20h 19m
2 stops
STL11:39 pmLambert-St Louis

When to book flights from St. Louis to Buenos Aires Jorge Newbery Airport

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Buenos Aires Jorge Newbery Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Buenos Aires Jorge Newbery Airport (STL to AEP) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Buenos Aires Jorge Newbery Airport

Best Price Found

$1,135

Fastest flight time

17h 00m

Direct flights

None
The best flight deal from St. Louis to Buenos Aires Jorge Newbery Airport found on momondo in the last 72 hours is $1,135
The fastest flight from St. Louis to Buenos Aires Jorge Newbery Airport takes 17h 00m
There are no direct flights from St. Louis to Buenos Aires Jorge Newbery Airport. Popular non-direct route for this connection is Lambert-St Louis Airport - Buenos Aires Jorge Newbery Airport.

  • How far is Lambert-St Louis to Buenos Aires Jorge Newbery by plane?

    The distance between Lambert-St Louis and Buenos Aires Jorge Newbery is about 5446.6 mi. In terms of flight time, this usually takes a little over 17h 00m.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Buenos Aires Jorge Newbery Airport?

    Prices for flights from Lambert-St Louis Airport to Buenos Aires Jorge Newbery Airport refresh daily.

  • How old do you have to be to fly from Lambert-St Louis Airport to Buenos Aires Jorge Newbery Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Buenos Aires Jorge Newbery Airport.

  • What documentation or ID do you need to fly to Buenos Aires Jorge Newbery Airport?

    The required travel and health documents for your Buenos Aires Jorge Newbery Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Buenos Aires Jorge Newbery Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.


  • How do I get Price Alerts for flights from St. Louis to Buenos Aires Jorge Newbery Airport?

    Search flight deals from St. Louis to Buenos Aires Jorge Newbery Airport. While viewing offers you’ll have the option to create a Price Alert.

  • How can I save money on flights from St. Louis to Buenos Aires Jorge Newbery Airport with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.


Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Buenos Aires?

It is quick and easy to find St. Louis to Buenos Aires flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Buenos Aires that suits you.

Can I find flights from St. Louis to Buenos Aires with flexible booking policies on momondo?

Flights from St. Louis to Buenos Aires with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from St. Louis to Buenos Aires?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from St. Louis to Buenos Aires.

I’m not ready to book a flight from St. Louis to Buenos Aires right now. Can momondo alert me if prices change?

Price alerts on flights to Buenos Aires from St. Louis are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.


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