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Cheap flights from St. Louis to Brazil from $299

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 2/23. 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
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
4:05 pm - 12:05 pm
STL
-
GIG
17h 00m1 stop
Air Canada Logo
8:00 pm - 3:29 pm
GIG
-
STL
21h 29m1 stop
$769Air Canada
Sat, Mar 7 - Wed, Mar 11
Air Canada Logo
4:05 pm - 9:00 am
STL
-
GRU
37h 55m2 stops
Air Canada Logo
9:30 pm - 3:29 pm
GRU
-
STL
19h 59m1 stop
$772Air Canada
Sat, Mar 7 - Wed, Mar 11
Air Canada Logo
4:05 pm - 9:00 am
STL
-
GRU
37h 55m2 stops
Air Canada Logo
9:15 pm - 3:29 pm
GRU
-
STL
20h 14m2 stops
$775Air Canada
Sat, Mar 7 - Wed, Mar 11
Multiple Airlines Logo
6:00 am - 8:45 am
STL
-
GRU
24h 45m2 stops
Multiple Airlines Logo
12:15 am - 10:33 pm
GRU
-
STL
24h 18m2 stops
$826Multiple Airlines
Sun, Mar 8 - Sun, Mar 15
Multiple Airlines Logo
5:42 pm - 1:35 am
STL
-
GRU
28h 53m2 stops
Multiple Airlines Logo
11:20 am - 11:33 pm
GRU
-
STL
15h 13m1 stop
$893Multiple Airlines
Wed, Jan 21 - Wed, Jan 28
Delta Logo
7:10 am - 8:20 am
STL
-
GIG
22h 10m1 stop
Delta Logo
9:30 pm - 3:53 pm
GIG
-
STL
20h 23m1 stop
$1,041Delta
Tue, Feb 24 - Tue, Mar 10
American Airlines Logo
6:02 pm - 9:25 am
STL
-
GIG
12h 23m1 stop
American Airlines Logo
10:30 pm - 11:05 am
GIG
-
STL
15h 35m1 stop
$1,106American Airlines
Thu, Jan 22 - Thu, Jan 29
American Airlines Logo
1:35 pm - 10:15 am
STL
-
GIG
17h 40m2 stops
American Airlines Logo
7:05 pm - 8:51 am
GIG
-
STL
16h 46m2 stops
$1,112American Airlines
Thu, Jan 22 - Thu, Jan 29
United Airlines Logo
10:07 am - 9:35 am
STL
-
GIG
20h 28m1 stop
United Airlines Logo
9:55 pm - 9:22 am
GIG
-
STL
14h 27m1 stop
$1,116United Airlines
Wed, Jan 21 - Wed, Jan 28
United Airlines Logo
6:00 am - 4:20 pm
STL
-
POA
32h 20m2 stops
United Airlines Logo
3:25 pm - 10:27 am
POA
-
STL
21h 02m2 stops
$1,208United Airlines
Sun, Mar 8 - Wed, Mar 11

GOL flights from St. Louis to Brazil

Our best GOL deals on St. Louis to Brazil flight tickets
GOL
Jan 21
STL10:00 amLambert-St Louis
19h 35m
2 stops
GRU8:35 amSao Paulo Guarulhos Intl
Jan 28
GRU10:20 amSao Paulo Guarulhos Intl
16h 39m
2 stops
STL11:59 pmLambert-St Louis
$867
Find similar
GOL
Mar 8
STL3:22 pmLambert-St Louis
17h 23m
2 stops
VCP10:45 amSao Paulo Viracopos
Mar 16
VCP5:55 pmSao Paulo Viracopos
42h 37m
2 stops
STL10:32 amLambert-St Louis
$911
Find similar
GOL
Mar 8
STL3:22 pmLambert-St Louis
17h 38m
2 stops
CGH11:00 amSao Paulo Congonhas
Mar 16
CGH7:55 pmSao Paulo Congonhas
27h 56m
2 stops
STL9:51 pmLambert-St Louis
$917
Find similar

Air Canada flights from St. Louis to Brazil

Our best Air Canada deals on St. Louis to Brazil flight tickets
Air Canada
Mar 7
STL4:05 pmLambert-St Louis
17h 00m
1 stop
GIG12:05 pmRio de Janeiro–Galeão Intl
Mar 11
GIG8:00 pmRio de Janeiro–Galeão Intl
21h 29m
1 stop
STL3:29 pmLambert-St Louis
$769
Find similar
Air Canada
Mar 7
STL4:05 pmLambert-St Louis
37h 55m
2 stops
GRU9:00 amSao Paulo Guarulhos Intl
Mar 11
GRU9:30 pmSao Paulo Guarulhos Intl
19h 59m
1 stop
STL3:29 pmLambert-St Louis
$772
Find similar
Air Canada
Mar 7
STL4:05 pmLambert-St Louis
37h 55m
2 stops
GRU9:00 amSao Paulo Guarulhos Intl
Mar 11
GRU9:15 pmSao Paulo Guarulhos Intl
20h 14m
2 stops
STL3:29 pmLambert-St Louis
$775
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Brazil 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 December 9, 2025.
Use the filters below to find and compare flights from St. Louis to Brazil that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Sat 3/7

4:05 pm-12:05 pm

1 stop17h 00m

Rio de Janeiro–Galeão Intl

Wed 3/11

8:00 pm-3:29 pm

1 stop21h 29m

$769

St. LouisSao Paulo

STL - GRU

STLGRU

Lambert-St Louis

Sat 3/7

4:05 pm-9:00 am

2 stops37h 55m

Sao Paulo Guarulhos Intl

Wed 3/11

9:30 pm-3:29 pm

1 stop19h 59m

$772

St. LouisSao Paulo

STL - GRU

STLGRU

Lambert-St Louis

Sat 3/7

4:05 pm-9:00 am

2 stops37h 55m

Sao Paulo Guarulhos Intl

Wed 3/11

9:15 pm-3:29 pm

2 stops20h 14m

$775

St. LouisSao Paulo

STL - GRU

STLGRU

Lambert-St Louis

Sun 3/8

6:00 am-8:45 am

2 stops24h 45m

Sao Paulo Guarulhos Intl

Sun 3/15

12:15 am-10:33 pm

2 stops24h 18m

$826

St. LouisSao Paulo

STL - GRU

STLGRU

Lambert-St Louis

Wed 1/21

5:42 pm-1:35 am

2 stops28h 53m

Sao Paulo Guarulhos Intl

Wed 1/28

11:20 am-11:33 pm

1 stop15h 13m

$893

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Tue 2/24

7:10 am-8:20 am

1 stop22h 10m

Rio de Janeiro–Galeão Intl

Tue 3/10

9:30 pm-3:53 pm

1 stop20h 23m

$1,041

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Thu 1/22

6:02 pm-9:25 am

1 stop12h 23m

Rio de Janeiro–Galeão Intl

Thu 1/29

10:30 pm-11:05 am

1 stop15h 35m

$1,106

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Thu 1/22

1:35 pm-10:15 am

2 stops17h 40m

Rio de Janeiro–Galeão Intl

Thu 1/29

7:05 pm-8:51 am

2 stops16h 46m

$1,112

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Wed 1/21

10:07 am-9:35 am

1 stop20h 28m

Rio de Janeiro–Galeão Intl

Wed 1/28

9:55 pm-9:22 am

1 stop14h 27m

$1,116

St. LouisPorto Alegre

STL - POA

STLPOA

Lambert-St Louis

Sun 3/8

6:00 am-4:20 pm

2 stops32h 20m

Porto Alegre Salgado Filho

Wed 3/11

3:25 pm-10:27 am

2 stops21h 02m

$1,208

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 April, then departing from St. Louis during the month May is also very affordable. Most momondo users find prices during this month for around $831.

What is the cheapest day to depart on your flight to Brazil?

The cheapest day to depart from St. Louis to Brazil is on a Tuesday. Travelers who choose to depart for Brazil on a Tuesday will often find tickets for as low as $949. The most expensive day to fly to Brazil is Sunday, with ticket prices averaging around $1,206.

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

Flying to Brazil from St. Louis in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $1,059 when looking at flights departing in the afternoon. In contrast, the most expensive time of day to depart to Brazil is at noon when prices are around $1,179.

Can stopping save me money on St. Louis to Brazil flights?

You could potentially save up to 28% on your flight if you consider stops on a St. Louis to Brazil flight.

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

Fastest flight time

12h 08m

Direct flights

None
The fastest flight from St. Louis to Brazil takes 12h 08m
There are no direct flights from St. Louis to Brazil. There are no popular flight routes from St. Louis to Brazil.
Search flight deals

  • 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?

  • 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
DeltaPriceFrom $711Free CancellationRating
7.9
8,011 reviews
Search Delta flights
LATAM AirlinesPriceFrom $756Free CancellationRating
7.5
1,889 reviews
Search LATAM Airlines flights
Air CanadaPriceFrom $758Free CancellationRating
7.1
10,513 reviews
Search Air Canada flights
American AirlinesPriceFrom $761Free CancellationRating
7.2
11,044 reviews
Search American Airlines flights
United AirlinesPriceFrom $938Free CancellationRating
7.4
9,084 reviews
Search United Airlines flights

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.

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Find better results for your trip to Brazil

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