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Cheap flights from Missouri to Buenos Aires from $381

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 6/13. 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 Missouri to Buenos Aires

Cheap round-trip flights

Enter your travel dates to find the best prices.
LATAM Airlines Logo
7:12 pm - 9:45 am
STL
-
EZE
12h 33m
1 stop
LATAM Airlines Logo
7:35 am - 11:56 pm
EZE
-
STL
18h 21m
2 stops
$959LATAM Airlines
Tue, Jun 23 - Thu, Jul 2
LATAM Airlines Logo
1:39 pm - 9:40 am
STL
-
EZE
18h 01m
2 stops
LATAM Airlines Logo
3:55 am - 11:56 pm
EZE
-
STL
22h 01m
2 stops
$963LATAM Airlines
Tue, Jun 23 - Wed, Jul 1
United Airlines Logo
11:10 am - 8:00 am
STL
-
EZE
18h 50m
1 stop
United Airlines Logo
9:00 pm - 10:07 am
EZE
-
STL
15h 07m
1 stop
$969United Airlines
Fri, Jun 26 - Thu, Jul 9
United Airlines Logo
1:13 pm - 8:00 am
STL
-
EZE
16h 47m
2 stops
United Airlines Logo
9:00 pm - 9:26 pm
EZE
-
STL
26h 26m
2 stops
$973United Airlines
Fri, Jun 26 - Thu, Jul 9
Multiple Airlines Logo
7:12 pm - 9:45 am
STL
-
EZE
12h 33m
1 stop
Multiple Airlines Logo
1:10 pm - 9:43 am
EZE
-
STL
22h 33m
2 stops
$1,023Multiple Airlines
Fri, Jun 26 - Thu, Jul 9
United Airlines Logo
2:57 pm - 8:00 am
STL
-
EZE
15h 03m
1 stop
United Airlines Logo
9:00 pm - 10:07 am
EZE
-
STL
15h 07m
1 stop
$1,029United Airlines
Fri, Jun 26 - Fri, Jul 10
Delta Logo
12:21 pm - 6:10 am
MCI
-
EZE
15h 49m
2 stops
Delta Logo
8:10 pm - 9:31 am
EZE
-
MCI
15h 21m
1 stop
$1,097Delta
Thu, Jun 4 - Thu, Jun 11
Delta Logo
12:21 pm - 7:40 am
MCI
-
AEP
17h 19m
2 stops
Delta Logo
3:45 pm - 9:31 am
AEP
-
MCI
19h 46m
2 stops
$1,097Delta
Thu, Jun 4 - Thu, Jun 11
Copa Airlines Logo
5:10 pm - 12:52 am
MCI
-
EZE
29h 42m
2 stops
Copa Airlines Logo
12:10 am - 11:13 pm
EZE
-
MCI
25h 03m
2 stops
$1,160Copa Airlines
Wed, Jun 3 - Tue, Jun 16
Multiple Airlines Logo
3:22 pm - 6:30 pm
MCI
-
AEP
24h 08m
3 stops
Multiple Airlines Logo
3:40 pm - 9:35 am
AEP
-
MCI
20h 55m
2 stops
$1,415Multiple Airlines
Tue, Nov 3 - Fri, Nov 13

LATAM Airlines flights from Missouri to Buenos Aires

Our best LATAM Airlines deals on Missouri to Buenos Aires flight tickets
LATAM Airlines
Jun 23
STL7:12 pmLambert-St Louis
12h 33m
1 stop
EZE9:45 amBuenos Aires Ministro Pistarini
Jul 2
EZE7:35 amBuenos Aires Ministro Pistarini
18h 21m
2 stops
STL11:56 pmLambert-St Louis
$959
LATAM Airlines
Jun 23
STL1:39 pmLambert-St Louis
18h 01m
2 stops
EZE9:40 amBuenos Aires Ministro Pistarini
Jul 1
EZE3:55 amBuenos Aires Ministro Pistarini
22h 01m
2 stops
STL11:56 pmLambert-St Louis
$963
LATAM Airlines
Jun 26
STL7:12 pmLambert-St Louis
12h 33m
1 stop
EZE9:45 amBuenos Aires Ministro Pistarini
Jul 9
EZE8:10 pmBuenos Aires Ministro Pistarini
15h 33m
1 stop
STL9:43 amLambert-St Louis
$1,038

United Airlines flights from Missouri to Buenos Aires

Our best United Airlines deals on Missouri to Buenos Aires flight tickets
United Airlines
Sep 6
STL8:30 pmLambert-St Louis
33h 30m
2 stops
EZE8:00 amBuenos Aires Ministro Pistarini
Sep 12
EZE9:00 pmBuenos Aires Ministro Pistarini
15h 09m
1 stop
STL10:09 amLambert-St Louis
$973
United Airlines
Sep 6
STL8:35 amLambert-St Louis
21h 25m
1 stop
EZE8:00 amBuenos Aires Ministro Pistarini
Sep 12
EZE9:00 pmBuenos Aires Ministro Pistarini
15h 09m
1 stop
STL10:09 amLambert-St Louis
$1,079
United Airlines
Jun 4
MCI9:36 amKansas City
20h 24m
2 stops
EZE8:00 amBuenos Aires Ministro Pistarini
Jun 11
EZE9:00 pmBuenos Aires Ministro Pistarini
28h 13m
2 stops
MCI11:13 pmKansas City
$1,101

momondo Fare Finder

 
Customize your flight search to find flights from Missouri to Buenos Aires 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 11, 2026.
Use the filters below to find and compare flights from Missouri to Buenos Aires that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Tue 6/23

7:12 pm-9:45 am

1 stop12h 33m

Buenos Aires Ministro Pistarini

Thu 7/2

7:35 am-11:56 pm

2 stops18h 21m

$959

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Tue 6/23

1:39 pm-9:40 am

2 stops18h 01m

Buenos Aires Ministro Pistarini

Wed 7/1

3:55 am-11:56 pm

2 stops22h 01m

$963

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Fri 6/26

11:10 am-8:00 am

1 stop18h 50m

Buenos Aires Ministro Pistarini

Thu 7/9

9:00 pm-10:07 am

1 stop15h 07m

$969

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Fri 6/26

1:13 pm-8:00 am

2 stops16h 47m

Buenos Aires Ministro Pistarini

Thu 7/9

9:00 pm-9:26 pm

2 stops26h 26m

$973

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Fri 6/26

7:12 pm-9:45 am

1 stop12h 33m

Buenos Aires Ministro Pistarini

Thu 7/9

1:10 pm-9:43 am

2 stops22h 33m

$1,023
Quickest round-trip

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

Fri 6/26

2:57 pm-8:00 am

1 stop15h 03m

Buenos Aires Ministro Pistarini

Fri 7/10

9:00 pm-10:07 am

1 stop15h 07m

$1,029

Kansas CityBuenos Aires

MCI - EZE

MCIEZE

Kansas City

Thu 6/4

12:21 pm-6:10 am

2 stops15h 49m

Buenos Aires Ministro Pistarini

Thu 6/11

8:10 pm-9:31 am

1 stop15h 21m

$1,097

Kansas CityBuenos Aires

MCI - AEP

MCIAEP

Kansas City

Thu 6/4

12:21 pm-7:40 am

2 stops17h 19m

Buenos Aires Jorge Newbery

Thu 6/11

3:45 pm-9:31 am

2 stops19h 46m

$1,097

Kansas CityBuenos Aires

MCI - EZE

MCIEZE

Kansas City

Wed 6/3

5:10 pm-12:52 am

2 stops29h 42m

Buenos Aires Ministro Pistarini

Tue 6/16

12:10 am-11:13 pm

2 stops25h 03m

$1,160

Kansas CityBuenos Aires

MCI - AEP

MCIAEP

Kansas City

Tue 11/3

3:22 pm-6:30 pm

3 stops24h 08m

Buenos Aires Jorge Newbery

Fri 11/13

3:40 pm-9:35 am

2 stops20h 55m

$1,415

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Buenos Aires from

How to get the cheapest flight ticket from Missouri to Buenos Aires

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 month to fly to Buenos Aires?

The cheapest month to fly to Buenos Aires from Missouri is in October. Flight prices, which tend to average around $829, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of October, then book flights to Buenos Aires from Missouri during May instead. Flights to Buenos Aires in May, while not as cheap as those in October, still average around $857.

Can stopping save me money on Missouri to Buenos Aires flights?

You could potentially save up to 23% on your flight if you consider stops on a Missouri to Buenos Aires flight.

Cheap Missouri to Buenos Aires flight deals and tips

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

Fastest flight time

12h 47m

Direct flights

Thu

Airports in Buenos Aires

2 airports
The fastest flight from Missouri to Buenos Aires takes 12h 47m
Direct flights go from Missouri to Buenos Aires on Thursday. There are no airlines offering direct flights.
There are 2 airports in Buenos Aires. From Missouri there are direct flights to Buenos Aires Ministro Pistarini (EZE).
Search flight deals

Frequently asked questions about flying from Missouri to Buenos Aires

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

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

  • How many operators does momondo search for flights from Missouri to Buenos Aires?

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

    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.

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

    The travel and health documents you'll need for your trip to Buenos Aires may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Buenos Aires. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Missouri to Buenos Aires

Compare and see reviews for airlines that fly from Missouri to Buenos Aires with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $857Free CancellationRating
7.9
8,453 reviews
Search Delta flights
LATAM AirlinesPriceFrom $884Free CancellationRating
7.4
1,918 reviews
Search LATAM Airlines flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Missouri to Buenos Aires. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo enables you to select and highlight flights to Buenos Aires from Missouri with this policy.

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?

Of course. momondo tracks the price of Missouri to Buenos Aires flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Find better results for your trip to Argentina

Fly into one of these airports located in Buenos Aires

Airports listed have a maximum distance of 17.0 mi from Buenos Aires
Buenos Aires Jorge Newbery Airport
Buenos Aires Ministro Pistarini Airport