What airlines fly to Buenos Aires?

United Airlines, Delta and American Airlines are the top three most popular airlines that fly to Buenos Aires from Missouri according to our data. United Airlines is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Buenos Aires. Keep in mind that there are 3 different airlines that fly to Buenos Aires on a routine basis, so you have a few additional options to choose from.

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

Delta and United Airlines are the most popular carriers operating from Missouri to Buenos Aires

How long does it take to fly to Buenos Aires?

On average, it takes 12h 49m to fly from Missouri to Buenos Aires if you fly out of St. Louis (the most popular airport in Missouri) and into Buenos Aires Ministro Pistarini Airport (the most popular airport in Buenos Aires). If you’re flying out of Kansas City and into Buenos Aires Ministro Pistarini Airport, then the flight time is around 13h 20m.

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?

The number of operators available for flights from Missouri to Buenos Aires is 3 as of October 2025.

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.

$356 Cheap Flights from Missouri to Buenos Aires in 2025/26

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Find the cheapest flights from Missouri to Buenos Aires

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One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:25 am - 5:50 amSTL-EZE

42h 25m2 stops

7:35 am - 10:07 amEZE-STL

29h 32m2 stops

$986Avianca

Find Deal

sáb, nov 15 - sáb, nov 22

12:18 pm - 9:00 amMCI-EZE

17h 42m1 stop

10:25 pm - 4:50 pmEZE-MCI

21h 25m1 stop

$1,025Delta

Find Deal

seg, dez 1 - ter, dez 9

10:20 am - 6:20 amMCI-EZE

17h 00m2 stops

4:05 am - 10:43 pmEZE-MCI

21h 38m2 stops

$1,035LATAM Airlines

Find Deal

seg, dez 1 - seg, dez 8

4:15 pm - 9:35 amMCI-EZE

38h 20m2 stops

7:43 pm - 4:03 pmEZE-MCI

47h 20m3 stops

$1,055Multiple Airlines

Find Deal

dom, fev 22 - dom, mar 1

10:00 am - 2:55 pmSTL-EZE

25h 55m2 stops

3:55 pm - 9:04 amEZE-STL

20h 09m2 stops

$1,058LATAM Airlines

Find Deal

qui, jan 15 - sáb, jan 31

2:48 pm - 2:50 amSTL-EZE

33h 02m3 stops

4:05 am - 11:01 amEZE-STL

33h 56m3 stops

$1,084Multiple Airlines

Find Deal

sáb, dez 6 - sex, dez 12

9:36 am - 8:10 amSTL-EZE

19h 34m1 stop

10:25 pm - 12:37 pmEZE-STL

17h 12m1 stop

$1,100American Airlines

Find Deal

ter, nov 18 - qua, nov 26

9:36 am - 8:10 amSTL-EZE

19h 34m1 stop

10:25 pm - 12:37 pmEZE-STL

17h 12m1 stop

$1,101American Airlines

Find Deal

ter, nov 18 - qua, nov 26

8:08 am - 9:20 amMCI-EZE

22h 12m1 stop

11:55 pm - 10:36 amEZE-MCI

13h 41m1 stop

$1,106United Airlines

Find Deal

dom, dez 14 - sáb, dez 27

10:15 am - 7:20 amMCI-EZE

18h 05m1 stop

11:55 pm - 10:36 amEZE-MCI

37h 41m2 stops

$1,110United Airlines

Find Deal

dom, fev 22 - dom, mar 1

United Airlines flights from Missouri to Buenos Aires

Our best United Airlines deals on Missouri to Buenos Aires flight tickets

United Airlines

Dec 14

MCI8:08 amKansas City

22h 12m

1 stop

EZE9:20 amBuenos Aires Ministro Pistarini

Dec 27

EZE11:55 pmBuenos Aires Ministro Pistarini

13h 41m

1 stop

MCI10:36 amKansas City

$1,106

Find similar

United Airlines

Feb 22

MCI10:15 amKansas City

18h 05m

1 stop

EZE7:20 amBuenos Aires Ministro Pistarini

Mar 1

EZE11:55 pmBuenos Aires Ministro Pistarini

37h 41m

2 stops

MCI10:36 amKansas City

$1,110

Find similar

United Airlines

Dec 8

MCI4:30 pmKansas City

13h 50m

1 stop

EZE9:20 amBuenos Aires Ministro Pistarini

Dec 12

EZE11:55 pmBuenos Aires Ministro Pistarini

20h 34m

2 stops

MCI5:29 pmKansas City

$1,146

Find similar

LATAM Airlines flights from Missouri to Buenos Aires

Our best LATAM Airlines deals on Missouri to Buenos Aires flight tickets

LATAM Airlines

Dec 1

MCI10:20 amKansas City

17h 00m

2 stops

EZE6:20 amBuenos Aires Ministro Pistarini

Dec 8

EZE4:05 amBuenos Aires Ministro Pistarini

21h 38m

2 stops

MCI10:43 pmKansas City

$1,035

Find similar

LATAM Airlines

Jan 15

STL10:00 amLambert-St Louis

25h 55m

2 stops

EZE2:55 pmBuenos Aires Ministro Pistarini

Jan 31

EZE3:55 pmBuenos Aires Ministro Pistarini

20h 09m

2 stops

STL9:04 amLambert-St Louis

$1,058

Find similar

LATAM Airlines

Mar 8

STL6:00 amLambert-St Louis

22h 05m

2 stops

EZE6:05 amBuenos Aires Ministro Pistarini

Mar 17

EZE7:45 amBuenos Aires Ministro Pistarini

17h 55m

2 stops

STL11:40 pmLambert-St Louis

$1,065

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

sáb 11/15

8:25 am-5:50 am

2 stops42h 25m

Buenos Aires Ministro Pistarini

sáb 11/22

7:35 am-10:07 am

2 stops29h 32m

$986

Kansas CityBuenos Aires

MCI - EZE

MCIEZE

Kansas City

seg 12/1

12:18 pm-9:00 am

1 stop17h 42m

Buenos Aires Ministro Pistarini

ter 12/9

10:25 pm-4:50 pm

1 stop21h 25m

$1,025

Kansas CityBuenos Aires

MCI - EZE

MCIEZE

Kansas City

seg 12/1

10:20 am-6:20 am

2 stops17h 00m

Buenos Aires Ministro Pistarini

seg 12/8

4:05 am-10:43 pm

2 stops21h 38m

$1,035

Kansas CityBuenos Aires

MCI - EZE

MCIEZE

Kansas City

dom 2/22

4:15 pm-9:35 am

2 stops38h 20m

Buenos Aires Ministro Pistarini

dom 3/1

7:43 pm-4:03 pm

3 stops47h 20m

$1,055

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

qui 1/15

10:00 am-2:55 pm

2 stops25h 55m

Buenos Aires Ministro Pistarini

sáb 1/31

3:55 pm-9:04 am

2 stops20h 09m

$1,058

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

sáb 12/6

2:48 pm-2:50 am

3 stops33h 02m

Buenos Aires Ministro Pistarini

sex 12/12

4:05 am-11:01 am

3 stops33h 56m

$1,084

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

ter 11/18

9:36 am-8:10 am

1 stop19h 34m

Buenos Aires Ministro Pistarini

qua 11/26

10:25 pm-12:37 pm

1 stop17h 12m

$1,100

St. LouisBuenos Aires

STL - EZE

STLEZE

Lambert-St Louis

ter 11/18

9:36 am-8:10 am

1 stop19h 34m

Buenos Aires Ministro Pistarini

qua 11/26

10:25 pm-12:37 pm

1 stop17h 12m

$1,101

Kansas CityBuenos Aires

MCI - EZE

MCIEZE

Kansas City

dom 12/14

8:08 am-9:20 am

1 stop22h 12m

Buenos Aires Ministro Pistarini

sáb 12/27

11:55 pm-10:36 am

1 stop13h 41m

$1,106

Kansas CityBuenos Aires

MCI - EZE

MCIEZE

Kansas City

dom 2/22

10:15 am-7:20 am

1 stop18h 05m

Buenos Aires Ministro Pistarini

dom 3/1

11:55 pm-10:36 am

2 stops37h 41m

$1,110

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

What is the cheapest month to fly to Buenos Aires?

The cheapest month to fly to Buenos Aires from Missouri is in September. Flight prices, which tend to average around $1,056, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of September, then book flights to Buenos Aires from Missouri during June instead. Flights to Buenos Aires in June, while not as cheap as those in September, still average around $1,177.

What is the cheapest day to depart on your flight to Buenos Aires?

On average, the least expensive day to fly to Buenos Aires from Missouri is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $1,163. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to Buenos Aires on Friday is $1,386.

What is the cheapest time of day to depart on your flight to Buenos Aires?

Our most recent data shows that the best time of day to fly to Buenos Aires is in the evening. Flights from Missouri to Buenos Aires during this time can be as low as $1,153. Try not to purchase tickets in the morning because they tend to be around $1,368. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

Direct flights	None

There are no direct flights from Missouri to Buenos Aires. There are no popular flight routes from Missouri to Buenos Aires.

Search flight deals

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?
The number of operators available for flights from Missouri to Buenos Aires is 3 as of October 2025.
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
American Airlines	PriceFrom $1,023	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Delta	PriceFrom $1,023	Free Cancellation	Rating 7.9 7,962 reviews	Search Delta flights
United Airlines	PriceFrom $1,053	Free Cancellation	Rating 7.4 8,933 reviews	Search United 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.