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Cheap flights from St. Louis to Brazil from $317

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 1/25. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
5:00 pm - 1:30 pmSTL-FOR
17h 30m2 stops
Delta Logo
4:35 am - 8:04 amFOR-STL
30h 29m2 stops
$766Delta
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Tue, Mar 3 - Fri, Mar 6
GOL Logo
11:19 am - 10:45 amSTL-VCP
20h 26m2 stops
GOL Logo
5:55 pm - 10:27 amVCP-STL
43h 32m2 stops
$804GOL
Find Deal
Mon, Mar 2 - Wed, Mar 4
Air Canada Logo
4:05 pm - 3:10 pmSTL-GIG
21h 05m2 stops
Air Canada Logo
8:00 pm - 3:29 pmGIG-STL
21h 29m1 stop
$965Air Canada
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Mon, Mar 23 - Wed, Mar 25
Air Canada Logo
4:05 pm - 9:00 amSTL-GRU
37h 55m2 stops
Air Canada Logo
9:45 pm - 3:29 pmGRU-STL
20h 44m2 stops
$1,019Air Canada
Find Deal
Sat, Feb 14 - Sat, Feb 21
LATAM Airlines Logo
5:04 pm - 10:55 pmSTL-GIG
26h 51m2 stops
LATAM Airlines Logo
9:30 pm - 9:08 amGIG-STL
14h 38m1 stop
$1,071LATAM Airlines
Find Deal
Tue, Feb 3 - Sat, Feb 14
LATAM Airlines Logo
1:22 pm - 8:00 pmSTL-GRU
27h 38m2 stops
LATAM Airlines Logo
7:35 am - 11:38 pmGRU-STL
19h 03m2 stops
$1,105LATAM Airlines
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Wed, Dec 24 - Wed, Dec 31
American Airlines Logo
5:05 am - 6:15 amSTL-GIG
22h 10m1 stop
American Airlines Logo
11:55 pm - 10:27 amGIG-STL
13h 32m1 stop
$1,118American Airlines
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Sat, Feb 14 - Sun, Feb 22
American Airlines Logo
7:05 am - 6:15 amSTL-GIG
20h 10m2 stops
American Airlines Logo
11:55 pm - 10:27 amGIG-STL
13h 32m1 stop
$1,123American Airlines
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Sat, Feb 14 - Sun, Feb 22
United Airlines Logo
7:41 am - 9:35 amSTL-GIG
22h 54m2 stops
United Airlines Logo
9:55 pm - 9:00 pmGIG-STL
26h 05m2 stops
$1,195United Airlines
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Sat, Feb 14 - Sun, Feb 22
United Airlines Logo
8:30 am - 2:20 pmSTL-SDU
26h 50m2 stops
United Airlines Logo
2:50 pm - 10:59 pmSDU-STL
35h 09m2 stops
$1,303United Airlines
Find Deal
Wed, Feb 18 - Sun, Feb 22

Air Canada flights from St. Louis to Brazil

Our best Air Canada deals on St. Louis to Brazil flight tickets
Air Canada
Mar 23
STL4:05 pmLambert-St Louis
21h 05m
2 stops
GIG3:10 pmRio de Janeiro–Galeão Intl
Mar 25
GIG8:00 pmRio de Janeiro–Galeão Intl
21h 29m
1 stop
STL3:29 pmLambert-St Louis
$965
Find similar
Air Canada
Feb 14
STL4:05 pmLambert-St Louis
37h 55m
2 stops
GRU9:00 amSao Paulo Guarulhos Intl
Feb 21
GRU9:45 pmSao Paulo Guarulhos Intl
20h 44m
2 stops
STL3:29 pmLambert-St Louis
$1,019
Find similar
Air Canada
Mar 2
STL4:05 pmLambert-St Louis
21h 25m
2 stops
POA4:30 pmPorto Alegre Salgado Filho
Mar 4
POA3:30 pmPorto Alegre Salgado Filho
26h 59m
2 stops
STL3:29 pmLambert-St Louis
$1,106
Find similar

LATAM Airlines flights from St. Louis to Brazil

Our best LATAM Airlines deals on St. Louis to Brazil flight tickets
LATAM Airlines
Feb 3
STL5:04 pmLambert-St Louis
26h 51m
2 stops
GIG10:55 pmRio de Janeiro–Galeão Intl
Feb 14
GIG9:30 pmRio de Janeiro–Galeão Intl
14h 38m
1 stop
STL9:08 amLambert-St Louis
$1,071
Find similar
LATAM Airlines
Dec 24
STL1:22 pmLambert-St Louis
27h 38m
2 stops
GRU8:00 pmSao Paulo Guarulhos Intl
Dec 31
GRU7:35 amSao Paulo Guarulhos Intl
19h 03m
2 stops
STL11:38 pmLambert-St Louis
$1,105
Find similar
LATAM Airlines
Dec 24
STL9:47 amLambert-St Louis
20h 48m
1 stop
GRU9:35 amSao Paulo Guarulhos Intl
Dec 31
GRU7:35 amSao Paulo Guarulhos Intl
19h 03m
2 stops
STL11:38 pmLambert-St Louis
$1,125
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 November 7, 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. LouisFortaleza

STL - FOR

STLFOR

Lambert-St Louis

Tue 3/3

5:00 pm-1:30 pm

2 stops17h 30m

Fortaleza Pinto Martins

Fri 3/6

4:35 am-8:04 am

2 stops30h 29m

$766

St. LouisSao Paulo

STL - VCP

STLVCP

Lambert-St Louis

Mon 3/2

11:19 am-10:45 am

2 stops20h 26m

Sao Paulo Viracopos

Wed 3/4

5:55 pm-10:27 am

2 stops43h 32m

$804

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Mon 3/23

4:05 pm-3:10 pm

2 stops21h 05m

Rio de Janeiro–Galeão Intl

Wed 3/25

8:00 pm-3:29 pm

1 stop21h 29m

$965

St. LouisSao Paulo

STL - GRU

STLGRU

Lambert-St Louis

Sat 2/14

4:05 pm-9:00 am

2 stops37h 55m

Sao Paulo Guarulhos Intl

Sat 2/21

9:45 pm-3:29 pm

2 stops20h 44m

$1,019

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Tue 2/3

5:04 pm-10:55 pm

2 stops26h 51m

Rio de Janeiro–Galeão Intl

Sat 2/14

9:30 pm-9:08 am

1 stop14h 38m

$1,071

St. LouisSao Paulo

STL - GRU

STLGRU

Lambert-St Louis

Wed 12/24

1:22 pm-8:00 pm

2 stops27h 38m

Sao Paulo Guarulhos Intl

Wed 12/31

7:35 am-11:38 pm

2 stops19h 03m

$1,105

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Sat 2/14

5:05 am-6:15 am

1 stop22h 10m

Rio de Janeiro–Galeão Intl

Sun 2/22

11:55 pm-10:27 am

1 stop13h 32m

$1,118

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Sat 2/14

7:05 am-6:15 am

2 stops20h 10m

Rio de Janeiro–Galeão Intl

Sun 2/22

11:55 pm-10:27 am

1 stop13h 32m

$1,123

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Sat 2/14

7:41 am-9:35 am

2 stops22h 54m

Rio de Janeiro–Galeão Intl

Sun 2/22

9:55 pm-9:00 pm

2 stops26h 05m

$1,195

St. LouisRio de Janeiro

STL - SDU

STLSDU

Lambert-St Louis

Wed 2/18

8:30 am-2:20 pm

2 stops26h 50m

Rio de Janeiro Santos Dumont

Sun 2/22

2:50 pm-10:59 pm

2 stops35h 09m

$1,303

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

Direct flights

None
There are no direct flights from St. Louis to Brazil. There are no popular flight routes from St. Louis to Brazil.
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  • 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
8,001 reviews
Search Delta flights
LATAM AirlinesPriceFrom $756Free CancellationRating
7.5
1,872 reviews
Search LATAM Airlines flights
Air CanadaPriceFrom $758Free CancellationRating
7.1
10,416 reviews
Search Air Canada flights
American AirlinesPriceFrom $761Free CancellationRating
7.2
11,040 reviews
Search American Airlines flights
United AirlinesPriceFrom $938Free CancellationRating
7.4
9,007 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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