Cheap flights from St. Louis to Brazil from $398
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 Brazil departing on 12/7. 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. LouisSao Paulo
STL Lambert-St Louis - GRU Sao Paulo Guarulhos Intl
STLGRU
Lambert-St Louis
Sat 11/28
1:20 pm-8:50 am
1 stop16h 30m
Sao Paulo Guarulhos Intl
Mon 11/30
1:00 am-12:12 am
2 stops26h 12m
St. LouisRio de Janeiro
STL Lambert-St Louis - GIG Rio de Janeiro–Galeão Intl
STLGIG
Lambert-St Louis
Sun 11/15
6:50 pm-8:00 am
2 stops34h 10m
Rio de Janeiro–Galeão Intl
Sun 11/22
10:20 am-8:55 am
2 stops25h 35m
St. LouisBrasilia
STL Lambert-St Louis - BSB Brasilia
STLBSB
Lambert-St Louis
Sat 2/27
9:00 am-7:20 am
2 stops19h 20m
Brasilia
Wed 3/10
9:05 am-6:01 pm
2 stops35h 56m
St. LouisBrasilia
STL Lambert-St Louis - BSB Brasilia
STLBSB
Lambert-St Louis
Wed 3/3
11:19 am-7:20 am
1 stop17h 01m
Brasilia
Tue 3/9
9:55 am-9:51 pm
1 stop14h 56m
St. LouisBrasilia
STL Lambert-St Louis - BSB Brasilia
STLBSB
Lambert-St Louis
Mon 3/1
11:19 am-7:20 am
1 stop17h 01m
Brasilia
Mon 3/8
9:55 am-9:51 pm
1 stop14h 56m
St. LouisRio de Janeiro
STL Lambert-St Louis - GIG Rio de Janeiro–Galeão Intl
STLGIG
Lambert-St Louis
Wed 11/18
5:00 pm-9:25 am
1 stop13h 25m
Rio de Janeiro–Galeão Intl
Wed 11/25
10:15 pm-9:37 am
1 stop14h 22m
St. LouisRio de Janeiro
STL Lambert-St Louis - GIG Rio de Janeiro–Galeão Intl
STLGIG
Lambert-St Louis
Wed 3/10
9:00 am-6:25 am
2 stops18h 25m
Rio de Janeiro–Galeão Intl
Thu 3/18
7:10 am-11:39 pm
2 stops18h 29m
St. LouisSao Paulo
STL Lambert-St Louis - GRU Sao Paulo Guarulhos Intl
STLGRU
Lambert-St Louis
Mon 11/23
1:00 pm-10:20 am
1 stop18h 20m
Sao Paulo Guarulhos Intl
Mon 12/7
10:15 pm-9:45 am
1 stop14h 30m
St. LouisSao Paulo
STL Lambert-St Louis - GRU Sao Paulo Guarulhos Intl
STLGRU
Lambert-St Louis
Thu 11/26
1:00 pm-10:20 am
1 stop18h 20m
Sao Paulo Guarulhos Intl
Thu 12/3
9:45 pm-9:49 am
1 stop15h 04m
St. LouisSao Paulo
STL Lambert-St Louis - GRU Sao Paulo Guarulhos Intl
STLGRU
Lambert-St Louis
Sun 2/28
10:36 am-6:05 am
2 stops16h 29m
Sao Paulo Guarulhos Intl
Wed 3/17
12:05 am-3:33 pm
2 stops17h 28m
See travel insights to Brazil from
How to get the cheapest flight ticket from St. Louis to Brazil
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 Brazil?
If you are unable to visit Brazil during the month of September, then departing from St. Louis during the month March is also very affordable. Most momondo users find prices during this month for around $1,158.
Can stopping save me money on St. Louis to Brazil flights?
You could potentially save up to 14% on your flight if you consider stops on a St. Louis to Brazil flight.
What is the cheapest airline that flies from Lambert-St Louis to Brazil?
Air Canada, United Airlines, and GOL are the most popular carriers operating from Lambert-St Louis to Brazil
What airlines fly to Brazil?
GOL, American Airlines and United Airlines are the top three most popular airlines that fly to Brazil from St. Louis according to our data. GOL is the first choice among our users, with 35% of people opting to fly with this airline when traveling to Brazil. Keep in mind that there are 4 different airlines that fly to Brazil on a routine basis, so you have a few additional options to choose from.
Cheap St. Louis to Brazil flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from St. Louis to Brazil
Frequently asked questions about flying from St. Louis to Brazil
When did momondo last update prices for flights from Lambert-St Louis Airport to Brazil?
Prices for flights from Lambert-St Louis Airport to Brazil are refreshed on a daily basis.
How many operators does momondo search for flights from Lambert-St Louis Airport to Brazil?
As of October 2026, there are 4 operators available to choose from for flights from Lambert-St Louis Airport to Brazil.
How old do you have to be to fly from Lambert-St Louis Airport to Brazil?
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 Brazil.
What documentation or ID do you need to fly to Brazil?
The travel and health documents required for your trip to Brazil can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Brazil. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
Best airlines flying from St. Louis to Brazil
Compare and see reviews for airlines that fly from St. Louis to Brazil with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $888 | Free Cancellation | Rating 7.3 1,319 reviews | |||
| PriceFrom $1,064 | Free Cancellation | Rating 7.0 12,132 reviews | |||
| PriceFrom $1,188 | Free Cancellation | Rating 7.4 1,978 reviews | |||
| PriceFrom $1,292 | Free Cancellation | Rating 7.4 10,287 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from St. Louis to Brazil?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from St. Louis to Brazil. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from St. Louis to Brazil with flexible booking policies on momondo?
momondo does allow users to show only those flights to Brazil from St. Louis which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from St. Louis to Brazil?
momondo helps you find the best flight between St. Louis and Brazil by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from St. Louis to Brazil right now. Can momondo alert me if prices change?
If you are not ready to book a flight from St. Louis to Brazil now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Brazil and let you know when they change.