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Cheap flights from Missouri to Buenos Aires from $497

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Missouri to Buenos Aires departing on 7/15. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
LATAM Airlines Logo
11:51 am - 12:00 pm
STL
-
AEP
21h 09m
2 stops
LATAM Airlines Logo
5:05 pm - 10:48 am
AEP
-
STL
20h 43m
2 stops
$1,148LATAM Airlines
Mon, Nov 9 - Tue, Nov 17
GOL Logo
4:45 pm - 1:00 pm
MCI
-
AEP
18h 15m
2 stops
GOL Logo
3:40 am - 10:00 pm
AEP
-
MCI
20h 20m
2 stops
$1,182GOL
Thu, Oct 1 - Sun, Oct 4
LATAM Airlines Logo
5:14 pm - 4:00 pm
MCI
-
AEP
20h 46m
2 stops
LATAM Airlines Logo
3:40 pm - 9:35 am
AEP
-
MCI
20h 55m
2 stops
$1,228LATAM Airlines
Sun, Aug 23 - Sat, Dec 5
LATAM Airlines Logo
11:00 am - 8:30 am
STL
-
AEP
19h 30m
2 stops
LATAM Airlines Logo
3:45 pm - 9:54 am
AEP
-
STL
20h 09m
2 stops
$1,247LATAM Airlines
Tue, Aug 11 - Tue, Aug 18
LATAM Airlines Logo
1:18 pm - 9:40 am
MCI
-
AEP
18h 22m
2 stops
LATAM Airlines Logo
3:45 pm - 9:19 am
AEP
-
MCI
19h 34m
2 stops
$1,287LATAM Airlines
Mon, Jul 20 - Mon, Aug 3
Multiple Airlines Logo
4:15 pm - 4:20 am
STL
-
AEP
33h 05m
3 stops
Multiple Airlines Logo
7:00 am - 3:30 pm
AEP
-
STL
35h 30m
3 stops
$1,290Multiple Airlines
Mon, Nov 9 - Tue, Nov 17
LATAM Airlines Logo
3:57 pm - 4:00 pm
STL
-
AEP
22h 03m
2 stops
LATAM Airlines Logo
8:05 pm - 12:17 pm
AEP
-
STL
18h 12m
2 stops
$1,298LATAM Airlines
Mon, Jun 29 - Mon, Jul 6
LATAM Airlines Logo
5:14 pm - 4:00 pm
MCI
-
AEP
20h 46m
2 stops
LATAM Airlines Logo
5:05 pm - 9:35 am
AEP
-
MCI
19h 30m
2 stops
$1,326LATAM Airlines
Sun, Aug 23 - Sat, Dec 5
Delta Logo
4:59 pm - 2:50 pm
STL
-
AEP
19h 51m
2 stops
Delta Logo
8:05 pm - 2:49 pm
AEP
-
STL
20h 44m
2 stops
$1,335Delta
Fri, Sep 18 - Fri, Sep 25
Multiple Airlines Logo
4:15 pm - 5:40 am
STL
-
AEP
34h 25m
3 stops
Multiple Airlines Logo
7:00 am - 3:30 pm
AEP
-
STL
35h 30m
3 stops
$1,477Multiple Airlines
Wed, Nov 11 - Tue, Nov 17

LATAM Airlines flights from Missouri to Buenos Aires Jorge Newbery Airport

Our best LATAM Airlines deals on Missouri to Buenos Aires Jorge Newbery Airport flight tickets
LATAM Airlines
Nov 9
STL11:51 amLambert-St Louis
21h 09m
2 stops
AEP12:00 pmBuenos Aires Jorge Newbery
Nov 17
AEP5:05 pmBuenos Aires Jorge Newbery
20h 43m
2 stops
STL10:48 amLambert-St Louis
$1,148
LATAM Airlines
Aug 23
MCI5:14 pmKansas City
20h 46m
2 stops
AEP4:00 pmBuenos Aires Jorge Newbery
Dec 5
AEP3:40 pmBuenos Aires Jorge Newbery
20h 55m
2 stops
MCI9:35 amKansas City
$1,228
LATAM Airlines
Aug 11
STL11:00 amLambert-St Louis
19h 30m
2 stops
AEP8:30 amBuenos Aires Jorge Newbery
Aug 18
AEP3:45 pmBuenos Aires Jorge Newbery
20h 09m
2 stops
STL9:54 amLambert-St Louis
$1,247

Avianca flights from Missouri to Buenos Aires Jorge Newbery Airport

Our best Avianca deals on Missouri to Buenos Aires Jorge Newbery Airport flight tickets
Avianca
Aug 17
MCI12:20 pmKansas City
39h 20m
2 stops
AEP5:40 amBuenos Aires Jorge Newbery
Aug 21
AEP7:00 amBuenos Aires Jorge Newbery
38h 32m
2 stops
MCI7:32 pmKansas City
$3,199
Avianca
Aug 17
MCI12:20 pmKansas City
39h 20m
2 stops
AEP5:40 amBuenos Aires Jorge Newbery
Aug 21
AEP7:00 amBuenos Aires Jorge Newbery
38h 32m
2 stops
MCI7:32 pmKansas City
$3,219

momondo Fare Finder

 
Customize your flight search to find flights from Missouri to Buenos Aires Jorge Newbery Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated May 31, 2026.
Use the filters below to find and compare flights from Missouri to Buenos Aires Jorge Newbery Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisBuenos Aires

STL - AEP

STLAEP

Lambert-St Louis

Mon 11/9

11:51 am-12:00 pm

2 stops21h 09m

Buenos Aires Jorge Newbery

Tue 11/17

5:05 pm-10:48 am

2 stops20h 43m

$1,148

Kansas CityBuenos Aires

MCI - AEP

MCIAEP

Kansas City

Thu 10/1

4:45 pm-1:00 pm

2 stops18h 15m

Buenos Aires Jorge Newbery

Sun 10/4

3:40 am-10:00 pm

2 stops20h 20m

$1,182

Kansas CityBuenos Aires

MCI - AEP

MCIAEP

Kansas City

Sun 8/23

5:14 pm-4:00 pm

2 stops20h 46m

Buenos Aires Jorge Newbery

Sat 12/5

3:40 pm-9:35 am

2 stops20h 55m

$1,228

St. LouisBuenos Aires

STL - AEP

STLAEP

Lambert-St Louis

Tue 8/11

11:00 am-8:30 am

2 stops19h 30m

Buenos Aires Jorge Newbery

Tue 8/18

3:45 pm-9:54 am

2 stops20h 09m

$1,247
Quickest round-trip

Kansas CityBuenos Aires

MCI - AEP

MCIAEP

Kansas City

Mon 7/20

1:18 pm-9:40 am

2 stops18h 22m

Buenos Aires Jorge Newbery

Mon 8/3

3:45 pm-9:19 am

2 stops19h 34m

$1,287

St. LouisBuenos Aires

STL - AEP

STLAEP

Lambert-St Louis

Mon 11/9

4:15 pm-4:20 am

3 stops33h 05m

Buenos Aires Jorge Newbery

Tue 11/17

7:00 am-3:30 pm

3 stops35h 30m

$1,290

St. LouisBuenos Aires

STL - AEP

STLAEP

Lambert-St Louis

Mon 6/29

3:57 pm-4:00 pm

2 stops22h 03m

Buenos Aires Jorge Newbery

Mon 7/6

8:05 pm-12:17 pm

2 stops18h 12m

$1,298

Kansas CityBuenos Aires

MCI - AEP

MCIAEP

Kansas City

Sun 8/23

5:14 pm-4:00 pm

2 stops20h 46m

Buenos Aires Jorge Newbery

Sat 12/5

5:05 pm-9:35 am

2 stops19h 30m

$1,326

St. LouisBuenos Aires

STL - AEP

STLAEP

Lambert-St Louis

Fri 9/18

4:59 pm-2:50 pm

2 stops19h 51m

Buenos Aires Jorge Newbery

Fri 9/25

8:05 pm-2:49 pm

2 stops20h 44m

$1,335

St. LouisBuenos Aires

STL - AEP

STLAEP

Lambert-St Louis

Wed 11/11

4:15 pm-5:40 am

3 stops34h 25m

Buenos Aires Jorge Newbery

Tue 11/17

7:00 am-3:30 pm

3 stops35h 30m

$1,477

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Missouri to Buenos Aires Jorge Newbery Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Missouri to Buenos Aires Jorge Newbery?

Avianca is the most popular carrier operating from Missouri to Buenos Aires Jorge Newbery

Cheap Missouri to Buenos Aires Jorge Newbery Airport flight deals and tips

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

Fastest flight time

18h 57m

Direct flights

None
The fastest flight from Missouri to Buenos Aires Jorge Newbery Airport takes 18h 57m
There are no direct flights from Missouri to Buenos Aires Jorge Newbery Airport. There are no popular flight routes from Missouri to Buenos Aires Jorge Newbery Airport.
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Frequently asked questions about flying from Missouri to Buenos Aires Jorge Newbery Airport

  • When did momondo last update prices for flights from Missouri to Buenos Aires Jorge Newbery Airport?

    Prices for flights from Missouri to Buenos Aires Jorge Newbery Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Missouri to Buenos Aires Jorge Newbery Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Missouri to Buenos Aires Jorge Newbery Airport.

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

    The necessary travel and health documents for your Buenos Aires Jorge Newbery Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Missouri to Buenos Aires?

Finding the right flight to Buenos Aires from Missouri is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Buenos Aires quick and easy, saving you time and money.

Can I find flights from Missouri to Buenos Aires with flexible booking policies on momondo?

All flight searches from Missouri to Buenos Aires on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Missouri to Buenos Aires?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Buenos Aires from Missouri.

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

Yes. momondo can track prices for Missouri to Buenos Aires flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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