$926+ Cheap flights from St. Louis (STL) to Argentina
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/3. Fares are subject to change and may not be available on all flights or dates of travel.
STL — EZE
may. 5 — may. 121
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from St. Louis to Argentina
Keep the following information in mind while searching for St. Louis to Argentina flight deals. Data was last updated abril 30, 2025.
Most accurate provider | AranGrant 3 stars |
|---|---|
Most trusted provider | AranGrant 3 stars |
Round-trip from | $1,220 (KAYAK) |
Popular in | November |
Cheapest in | August |
Average price | $1,199 |
Find flight deals from St. Louis to Argentina
Cheapest flights from St. Louis to ArgentinaExplore the most affordable flight options available from St. Louis to Argentina. Find the lowest fares from popular airlines and budget airlines, with prices last updated on abril 30, 2025.
Explore the most affordable flight options available from St. Louis to Argentina. Find the lowest fares from popular airlines and budget airlines, with prices last updated on abril 30, 2025.
This Avianca deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/39:17 amSTL - EZE
2 stops18h 28mMultiple Airlines
jue. 9/44:45 pmEZE - STL
2 stops19h 17mMultiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$926
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/185:40 pmSTL - EZE
1 stop14h 05mDelta
mar. 8/268:10 pmEZE - STL
1 stop20h 25mDelta
Deal found 4/29![Delta logo]()
$1,025
This United Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/121:20 pmSTL - EZE
2 stops16h 40mUnited Airlines
jue. 8/219:00 pmEZE - STL
2 stops19h 33mUnited Airlines
Deal found 4/29![United Airlines logo]()
$1,030
This Air Canada deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/161:30 pmSTL - EZE
3 stops47h 00mAir Canada
jue. 8/214:35 pmEZE - STL
2 stops29h 05mAir Canada
Deal found 4/29![Air Canada logo]()
$1,084
This LATAM Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/43:30 pmSTL - AEP
2 stops23h 30mLATAM Airlines
vie. 9/128:10 pmAEP - STL
2 stops38h 00mLATAM Airlines
Deal found 4/29![LATAM Airlines logo]()
$1,135
This Ovago deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/153:30 pmSTL - EZE
2 stops31h 55mLATAM Airlines
mar. 8/267:35 amEZE - STL
2 stops29h 03mLATAM Airlines
Deal found 4/29![LATAM Airlines logo]()
$1,143
This American Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/211:55 pmSTL - EZE
1 stop16h 15mAmerican Airlines
mié. 12/310:30 pmEZE - STL
1 stop20h 37mAmerican Airlines
Deal found 4/29![American Airlines logo]()
$1,193
This FlightHub deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/1410:00 amSTL - EZE
2 stops36h 10mAvianca
sáb. 8/234:45 pmEZE - STL
2 stops19h 17mAvianca
Deal found 4/29![Avianca logo]()
$1,212
This Orbitz deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/156:00 amSTL - AEP
2 stops34h 35mMultiple Airlines
vie. 8/223:40 amAEP - STL
2 stops22h 19mMultiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$1,729
This Gurufare deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/214:34 pmSTL - EZE
2 stops16h 46mGOL
mar. 12/23:15 amEZE - STL
2 stops22h 50mGOL
Deal found 4/29![GOL logo]()
$1,792
This FlightHub deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/165:18 amSTL - AEP
2 stops30h 02mGOL
vie. 8/223:40 amAEP - STL
2 stops22h 19mGOL
Deal found 4/29![GOL logo]()
$1,839
This Copa Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/138:25 amSTL - EZE
2 stops19h 28mCopa Airlines
vie. 1/93:57 amEZE - STL
2 stops32h 51mCopa Airlines
Deal found 4/29![Copa Airlines logo]()
$3,666
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Argentina 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, Cheapflights users made 2,558,603 searches. Data last updated abril 30, 2025.
Use the filters below to find and compare flights from St. Louis to Argentina that are best for you.
Fly from
St. Louis
Fly to
Argentina
Route
Depart
Return
Price
St. LouisBuenos Aires
STL - AEP
STLAEP
Lambert-St Louis
mar. 5/20
3:40 pm-2:00 pm
2 stops20h 20m
Buenos Aires Jorge Newbery
vie. 6/6
2:55 pm-11:54 am
2 stops22h 59m
$1,220
St. LouisBuenos Aires
STL - EZE
STLEZE
Lambert-St Louis
mar. 5/20
6:00 am-8:00 am
1 stop24h 00m
Buenos Aires Ministro Pistarini
vie. 6/6
9:00 pm-10:12 am
1 stop15h 12m
$1,220
St. LouisBuenos Aires
STL - EZE
STLEZE
Lambert-St Louis
vie. 5/2
6:10 am-6:10 am
2 stops22h 00m
Buenos Aires Ministro Pistarini
sáb. 5/3
3:55 am-4:00 pm
2 stops38h 05m
$1,394
St. LouisBuenos Aires
STL - EZE
STLEZE
Lambert-St Louis
vie. 5/2
4:05 pm-9:45 am
1 stop15h 40m
Buenos Aires Ministro Pistarini
dom. 5/4
8:10 pm-9:36 am
1 stop15h 26m
$1,545
St. LouisBuenos Aires
STL - AEP
STLAEP
Lambert-St Louis
mar. 5/20
10:05 am-2:00 pm
2 stops25h 55m
Buenos Aires Jorge Newbery
jue. 6/5
3:40 am-11:59 pm
2 stops22h 19m
$1,872
Best time to book a flight from St. Louis to Argentina
Have a flexible travel schedule? Discover the best time to fly to Argentina from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from St. Louis to Argentina
What is the cheapest month to book a flight from St. Louis to Argentina?
Currently, April is the cheapest month in which you can book a flight from St. Louis to Argentina (average of $795). Flying from St. Louis to Argentina in December is currently the most expensive (average of $1,260). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from STL to AR?
Find hourly flight availability from St. Louis to Argentina. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated abril 30, 2025.
When flying from St. Louis to Argentina, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Rainfall in Argentina by month
Plan your trip to Argentina by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Argentina ranges from 2.0 - 3.9 inches per month. January is typically the wettest month, when rainfall can reach 3.9 in. June is typically the driest time to visit Argentina when rainfall is around 2.0 in.
Temperature in Argentina by month
Plan your trip to Argentina by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Argentina, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 51.8 F).
Reviews of airlines servicing Argentina
Get insights into the airlines that provide service to Argentina. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Argentina. Reviews last updated abril 30, 2025.
Comfort
7.9
Food
7.3
Crew
8.5
Overall
8.0
Entertainment
7.9
Boarding
8.2
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Comfort
7.9
Food
7.3
Crew
8.5
Overall
8.0
Entertainment
7.9
Boarding
8.2
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Comfort
7.9
Food
7.3
Crew
8.5
Overall
8.0
Entertainment
7.9
Boarding
8.2
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Comfort
7.9
Food
7.3
Crew
8.5
Overall
8.0
Entertainment
7.9
Boarding
8.2
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Argentina. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for St. Louis to Argentina
See prices for flight routes from nearby airports that may be better suited for you.
Top 3 airlines flying from St. Louis to Argentina
Discover the top 3 airlines that operate flights from St. Louis to Argentina. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated abril 30, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$1,023 | Average$1,283 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$1,025 | Average$1,238 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$1,053 | Average$1,223 | FlexibilityNo cancel fee | On-time69% |