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Cheap flights from Missouri to Buenos Aires from $349

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 9/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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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
3:40 pm - 7:35 amSTL  Lambert-St Louis-EZE Buenos Aires Ministro Pistarini
12h 55m1 stop Atlanta Hartsfield-Jackson
LATAM Airlines Logo
11:35 pm - 10:48 amEZE  Buenos Aires Ministro Pistarini-STL Lambert-St Louis
14h 13m1 stop Atlanta Hartsfield-Jackson
$1,133LATAM Airlines
Thu, Jan 14 - Thu, Jan 28
LATAM Airlines Logo
9:00 am - 7:35 amSTL  Lambert-St Louis-EZE Buenos Aires Ministro Pistarini
19h 35m1 stop Atlanta Hartsfield-Jackson
LATAM Airlines Logo
7:20 am - 11:39 pmEZE  Buenos Aires Ministro Pistarini-STL Lambert-St Louis
19h 19m2 stops Lima J Chavez Intl Atlanta Hartsfield-Jackson
$1,138LATAM Airlines
Thu, Jan 14 - Thu, Jan 28
LATAM Airlines Logo
3:40 pm - 3:00 amSTL  Lambert-St Louis-EZE Buenos Aires Ministro Pistarini
32h 20m2 stops Atlanta Hartsfield-Jackson Lima J Chavez Intl
LATAM Airlines Logo
7:20 am - 11:39 pmEZE  Buenos Aires Ministro Pistarini-STL Lambert-St Louis
19h 19m2 stops Lima J Chavez Intl Atlanta Hartsfield-Jackson
$1,144LATAM Airlines
Thu, Jan 14 - Thu, Jan 28
Delta Logo
5:18 pm - 4:00 pmMCI  Kansas City-AEP Buenos Aires Jorge Newbery
20h 42m2 stops Atlanta Hartsfield-Jackson Lima J Chavez Intl
Delta Logo
8:05 pm - 1:21 pmAEP  Buenos Aires Jorge Newbery-MCI Kansas City
19h 16m2 stops Lima J Chavez Intl Atlanta Hartsfield-Jackson
$1,147Delta
Mon, Sep 7 - Mon, Sep 21
American Airlines Logo
1:04 pm - 8:45 amMCI  Kansas City-EZE Buenos Aires Ministro Pistarini
17h 41m2 stops Charlotte Douglas Miami
American Airlines Logo
8:45 pm - 1:37 pmEZE  Buenos Aires Ministro Pistarini-MCI Kansas City
18h 52m2 stops Miami Dallas/Fort Worth
$1,147American Airlines
Mon, Sep 7 - Mon, Sep 21
American Airlines Logo
4:52 pm - 8:45 amMCI  Kansas City-EZE Buenos Aires Ministro Pistarini
13h 53m1 stop Miami
American Airlines Logo
10:15 pm - 1:54 pmEZE  Buenos Aires Ministro Pistarini-MCI Kansas City
17h 39m2 stops Miami Charlotte Douglas
$1,147American Airlines
Mon, Sep 7 - Mon, Sep 21
Delta Logo
10:00 am - 6:20 amSTL  Lambert-St Louis-EZE Buenos Aires Ministro Pistarini
17h 20m2 stops Atlanta Hartsfield-Jackson Lima J Chavez Intl
Delta Logo
5:00 pm - 11:15 amEZE  Buenos Aires Ministro Pistarini-STL Lambert-St Louis
21h 15m2 stops Sao Paulo Guarulhos Intl Atlanta Hartsfield-Jackson
$1,148Delta
Wed, Dec 2 - Thu, Dec 17
United Airlines Logo
3:08 pm - 9:20 amMCI  Kansas City-EZE Buenos Aires Ministro Pistarini
15h 12m1 stop Houston George Bush Intcntl
United Airlines Logo
11:55 pm - 4:35 pmEZE  Buenos Aires Ministro Pistarini-MCI Kansas City
19h 40m1 stop Houston George Bush Intcntl
$1,148United Airlines
Mon, Jan 11 - Mon, Feb 22
United Airlines Logo
3:00 pm - 7:20 amMCI  Kansas City-EZE Buenos Aires Ministro Pistarini
13h 20m1 stop Houston George Bush Intcntl
United Airlines Logo
10:05 pm - 9:40 amEZE  Buenos Aires Ministro Pistarini-MCI Kansas City
14h 35m1 stop Houston George Bush Intcntl
$1,148United Airlines
Tue, Nov 17 - Wed, Dec 9
Delta Logo
7:20 am - 6:20 amSTL  Lambert-St Louis-EZE Buenos Aires Ministro Pistarini
20h 00m2 stops Atlanta Hartsfield-Jackson Lima J Chavez Intl
Delta Logo
11:35 pm - 6:01 pmEZE  Buenos Aires Ministro Pistarini-STL Lambert-St Louis
21h 26m1 stop Atlanta Hartsfield-Jackson
$1,148Delta
Thu, Jan 14 - Thu, Jan 28

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American Airlines flights from Missouri to Buenos Aires

Our best American Airlines deals on Missouri to Buenos Aires flight tickets
American Airlines
Sep 7
MCI1:04 pmKansas City
17h 41m
2 stops
EZE8:45 amBuenos Aires Ministro Pistarini
Sep 21
EZE8:45 pmBuenos Aires Ministro Pistarini
18h 52m
2 stops
MCI1:37 pmKansas City
$1,147
American Airlines
Jan 14
STL1:06 pmLambert-St Louis
18h 09m
2 stops
EZE10:15 amBuenos Aires Ministro Pistarini
Jan 28
EZE10:10 amBuenos Aires Ministro Pistarini
16h 48m
2 stops
STL11:58 pmLambert-St Louis
$1,152
American Airlines
Jan 1
MCI8:00 amKansas City
21h 30m
1 stop
EZE8:30 amBuenos Aires Ministro Pistarini
Jan 31
EZE10:30 pmBuenos Aires Ministro Pistarini
23h 02m
1 stop
MCI6:32 pmKansas City
$1,186

United Airlines flights from Missouri to Buenos Aires

Our best United Airlines deals on Missouri to Buenos Aires flight tickets
United Airlines
Jan 11
MCI11:30 amKansas City
18h 50m
2 stops
EZE9:20 amBuenos Aires Ministro Pistarini
Feb 22
EZE10:05 pmBuenos Aires Ministro Pistarini
19h 26m
2 stops
MCI2:31 pmKansas City
$1,152
United Airlines
Sep 28
STL6:15 amLambert-St Louis
23h 45m
1 stop
EZE8:00 amBuenos Aires Ministro Pistarini
Oct 5
EZE9:00 pmBuenos Aires Ministro Pistarini
19h 10m
1 stop
STL2:10 pmLambert-St Louis
$1,188
United Airlines
Aug 22
MCI11:22 amKansas City
18h 38m
2 stops
EZE8:00 amBuenos Aires Ministro Pistarini
Sep 2
EZE9:00 pmBuenos Aires Ministro Pistarini
22h 30m
2 stops
MCI5:30 pmKansas City
$1,190

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 August 15, 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
Quickest round-trip

St. LouisBuenos Aires

STL Lambert-St Louis - EZE Buenos Aires Ministro Pistarini

STLEZE

Lambert-St Louis

Thu 1/14

3:40 pm-7:35 am

1 stop12h 55m

Buenos Aires Ministro Pistarini

Thu 1/28

11:35 pm-10:48 am

1 stop14h 13m

$1,133

St. LouisBuenos Aires

STL Lambert-St Louis - EZE Buenos Aires Ministro Pistarini

STLEZE

Lambert-St Louis

Thu 1/14

9:00 am-7:35 am

1 stop19h 35m

Buenos Aires Ministro Pistarini

Thu 1/28

7:20 am-11:39 pm

2 stops19h 19m

$1,138

St. LouisBuenos Aires

STL Lambert-St Louis - EZE Buenos Aires Ministro Pistarini

STLEZE

Lambert-St Louis

Thu 1/14

3:40 pm-3:00 am

2 stops32h 20m

Buenos Aires Ministro Pistarini

Thu 1/28

7:20 am-11:39 pm

2 stops19h 19m

$1,144

Kansas CityBuenos Aires

MCI Kansas City - AEP Buenos Aires Jorge Newbery

MCIAEP

Kansas City

Mon 9/7

5:18 pm-4:00 pm

2 stops20h 42m

Buenos Aires Jorge Newbery

Mon 9/21

8:05 pm-1:21 pm

2 stops19h 16m

$1,147

Kansas CityBuenos Aires

MCI Kansas City - EZE Buenos Aires Ministro Pistarini

MCIEZE

Kansas City

Mon 9/7

1:04 pm-8:45 am

2 stops17h 41m

Buenos Aires Ministro Pistarini

Mon 9/21

8:45 pm-1:37 pm

2 stops18h 52m

$1,147

Kansas CityBuenos Aires

MCI Kansas City - EZE Buenos Aires Ministro Pistarini

MCIEZE

Kansas City

Mon 9/7

4:52 pm-8:45 am

1 stop13h 53m

Buenos Aires Ministro Pistarini

Mon 9/21

10:15 pm-1:54 pm

2 stops17h 39m

$1,147

St. LouisBuenos Aires

STL Lambert-St Louis - EZE Buenos Aires Ministro Pistarini

STLEZE

Lambert-St Louis

Wed 12/2

10:00 am-6:20 am

2 stops17h 20m

Buenos Aires Ministro Pistarini

Thu 12/17

5:00 pm-11:15 am

2 stops21h 15m

$1,148

Kansas CityBuenos Aires

MCI Kansas City - EZE Buenos Aires Ministro Pistarini

MCIEZE

Kansas City

Mon 1/11

3:08 pm-9:20 am

1 stop15h 12m

Buenos Aires Ministro Pistarini

Mon 2/22

11:55 pm-4:35 pm

1 stop19h 40m

$1,148

Kansas CityBuenos Aires

MCI Kansas City - EZE Buenos Aires Ministro Pistarini

MCIEZE

Kansas City

Tue 11/17

3:00 pm-7:20 am

1 stop13h 20m

Buenos Aires Ministro Pistarini

Wed 12/9

10:05 pm-9:40 am

1 stop14h 35m

$1,148

St. LouisBuenos Aires

STL Lambert-St Louis - EZE Buenos Aires Ministro Pistarini

STLEZE

Lambert-St Louis

Thu 1/14

7:20 am-6:20 am

2 stops20h 00m

Buenos Aires Ministro Pistarini

Thu 1/28

11:35 pm-6:01 pm

1 stop21h 26m

$1,148

Flights are sorted by cheapest round-trip flights first.

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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 February. Flight prices, which tend to average around $1,139, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to Buenos Aires from Missouri during November instead. Flights to Buenos Aires in November, while not as cheap as those in February, still average around $1,215.

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

You could potentially save up to 20% 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 55m

Direct flights

None
The fastest flight from Missouri to Buenos Aires takes 12h 55m
There are no direct flights from Missouri to Buenos Aires. There are no popular flight routes from Missouri to Buenos Aires.
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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
LATAM AirlinesPriceFrom $884Free CancellationRating
7.4
1,980 reviews
Search LATAM Airlines flights
DeltaPriceFrom $1,025Free CancellationRating
7.8
8,508 reviews
Search Delta flights
American AirlinesPriceFrom $1,147Free CancellationRating
7.1
11,941 reviews
Search American 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