Cheap flights from St. Louis to Argentina from $500
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Argentina departing on 12/24. 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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Fly from
Fly to
Route
Depart
Return
St. LouisBuenos Aires
STL Lambert-St Louis - EZE Buenos Aires Ministro Pistarini
STLEZE
Lambert-St Louis
Wed 12/2
8:30 am-7:20 am
1 stop19h 50m
Buenos Aires Ministro Pistarini
Wed 12/9
11:55 pm-4:50 pm
1 stop19h 55m
St. LouisBuenos Aires
STL Lambert-St Louis - EZE Buenos Aires Ministro Pistarini
STLEZE
Lambert-St Louis
Mon 11/30
6:15 am-9:20 am
1 stop24h 05m
Buenos Aires Ministro Pistarini
Wed 12/9
10:05 pm-9:45 am
1 stop14h 40m
St. LouisBuenos Aires
STL Lambert-St Louis - EZE Buenos Aires Ministro Pistarini
STLEZE
Lambert-St Louis
Wed 12/2
6:00 am-7:20 am
1 stop22h 20m
Buenos Aires Ministro Pistarini
Thu 12/10
10:05 pm-2:16 pm
1 stop19h 11m
St. LouisBuenos Aires
STL Lambert-St Louis - AEP Buenos Aires Jorge Newbery
STLAEP
Lambert-St Louis
Mon 11/30
10:05 am-7:40 am
2 stops18h 35m
Buenos Aires Jorge Newbery
Thu 12/10
8:05 pm-1:28 pm
2 stops20h 23m
St. LouisBuenos Aires
STL Lambert-St Louis - EZE Buenos Aires Ministro Pistarini
STLEZE
Lambert-St Louis
Sun 11/29
7:18 pm-9:40 am
1 stop35h 22m
Buenos Aires Ministro Pistarini
Wed 12/9
9:30 pm-9:01 am
1 stop14h 31m
St. LouisBuenos Aires
STL Lambert-St Louis - EZE Buenos Aires Ministro Pistarini
STLEZE
Lambert-St Louis
Sun 11/29
7:18 pm-9:40 am
1 stop35h 22m
Buenos Aires Ministro Pistarini
Wed 12/9
7:20 am-12:05 am
2 stops19h 45m
St. LouisBuenos Aires
STL Lambert-St Louis - EZE Buenos Aires Ministro Pistarini
STLEZE
Lambert-St Louis
Tue 12/1
10:37 am-8:40 am
1 stop19h 03m
Buenos Aires Ministro Pistarini
Fri 12/11
10:50 pm-11:41 am
1 stop15h 51m
St. LouisBuenos Aires
STL Lambert-St Louis - EZE Buenos Aires Ministro Pistarini
STLEZE
Lambert-St Louis
Sat 3/13
2:19 pm-10:45 am
2 stops17h 26m
Buenos Aires Ministro Pistarini
Sun 3/21
8:40 pm-11:18 am
1 stop16h 38m
St. LouisBuenos Aires
STL Lambert-St Louis - EZE Buenos Aires Ministro Pistarini
STLEZE
Lambert-St Louis
Wed 1/13
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
St. LouisBuenos Aires
STL Lambert-St Louis - EZE Buenos Aires Ministro Pistarini
STLEZE
Lambert-St Louis
Wed 1/13
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
See travel insights to Argentina from
How to get the cheapest flight ticket from St. Louis to Argentina
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 Lambert-St Louis to Argentina?
Copa Airlines, GOL, and American Airlines are the most popular carriers operating from Lambert-St Louis to Argentina
What airlines fly to Argentina?
Delta, LATAM Airlines and American Airlines are the top three most popular airlines that fly to Argentina from St. Louis according to our data. Delta is the first choice among our users, with 37% of people opting to fly with this airline when traveling to Argentina. Keep in mind that there are 3 different airlines that fly to Argentina on a routine basis, so you have a few additional options to choose from.
Cheap St. Louis to Argentina flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from St. Louis to Argentina
Frequently asked questions about flying from St. Louis to Argentina
When did momondo last update prices for flights from Lambert-St Louis Airport to Argentina?
Prices for flights from Lambert-St Louis Airport to Argentina refresh daily.
How many operators does momondo search for flights from Lambert-St Louis Airport to Argentina?
There are 3 operators available for flights from Lambert-St Louis Airport to Argentina as of October 2026.
How old do you have to be to fly from Lambert-St Louis Airport to Argentina?
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 Lambert-St Louis Airport to Argentina.
What documentation or ID do you need to fly to Argentina?
The required travel and health documents for your Argentina trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Argentina. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
Best airlines flying from St. Louis to Argentina
Compare and see reviews for airlines that fly from St. Louis to Argentina with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $431 | Free Cancellation | Rating 7.8 8,645 reviews | |||
| PriceFrom $884 | Free Cancellation | Rating 7.4 1,975 reviews | |||
| PriceFrom $1,147 | Free Cancellation | Rating 7.0 12,145 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from St. Louis to Argentina?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Argentina from St. Louis.
Can I find flights from St. Louis to Argentina with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for St. Louis to Argentina flights to just show those with flexible booking policies.
How can momondo help me find flights from St. Louis to Argentina?
Once you have performed a search for St. Louis to Argentina flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from St. Louis to Argentina right now. Can momondo alert me if prices change?
Yes. momondo can track prices for St. Louis to Argentina 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.