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Cheap flights from St. Louis to Brazil from $394

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 12/1. 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.
Air Canada Logo
4:05 pm - 9:00 amSTL-GRU
38h 55m2 stops
Air Canada Logo
9:15 pm - 3:29 pmGRU-STL
20h 14m2 stops
$764Air Canada
Find Deal
mié., mar. 11 - lun., mar. 16
GOL Logo
5:03 pm - 7:15 pmSTL-CGH
24h 12m2 stops
GOL Logo
11:50 am - 11:37 pmCGH-STL
37h 47m2 stops
$768GOL
Find Deal
lun., mar. 30 - mié., abr. 1
Air Canada Logo
4:05 pm - 9:00 amSTL-GRU
14h 55m1 stop
Air Canada Logo
9:15 pm - 3:29 pmGRU-STL
20h 14m2 stops
$839Air Canada
Find Deal
mié., mar. 11 - lun., mar. 16
LATAM Airlines Logo
5:00 pm - 8:20 amSTL-GIG
12h 20m1 stop
LATAM Airlines Logo
5:15 pm - 11:05 amGIG-STL
20h 50m2 stops
$1,033LATAM Airlines
Find Deal
mié., ene. 7 - mié., ene. 14
Delta Logo
6:00 am - 6:25 amSTL-GIG
21h 25m2 stops
Delta Logo
9:30 pm - 4:07 pmGIG-STL
21h 37m1 stop
$1,041Delta
Find Deal
lun., ene. 19 - lun., ene. 26
United Airlines Logo
9:57 am - 9:35 amSTL-GIG
20h 38m2 stops
United Airlines Logo
9:55 pm - 4:03 pmGIG-STL
21h 08m2 stops
$1,045United Airlines
Find Deal
lun., ene. 19 - lun., ene. 26
Delta Logo
9:59 am - 9:25 amSTL-SDU
20h 26m2 stops
Delta Logo
8:05 pm - 11:54 amSDU-STL
18h 49m2 stops
$1,058Delta
Find Deal
lun., ene. 19 - lun., ene. 26
LATAM Airlines Logo
3:45 pm - 8:20 amSTL-GIG
13h 35m1 stop
LATAM Airlines Logo
9:30 pm - 11:54 amGIG-STL
17h 24m1 stop
$1,084LATAM Airlines
Find Deal
lun., feb. 2 - sáb., feb. 7
American Airlines Logo
5:10 am - 3:55 pmSTL-FOR
31h 45m2 stops
American Airlines Logo
3:55 pm - 11:03 amFOR-STL
22h 08m2 stops
$1,306American Airlines
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jue., dic. 11 - sáb., ene. 17
American Airlines Logo
6:00 pm - 2:25 pmSTL-CGH
17h 25m2 stops
American Airlines Logo
6:10 pm - 10:50 amCGH-STL
19h 40m2 stops
$1,358American Airlines
Find Deal
mié., dic. 24 - mié., dic. 31

American Airlines flights from St. Louis to Brazil

Our best American Airlines deals on St. Louis to Brazil flight tickets
American Airlines
Jan 7
STL9:25 amLambert-St Louis
17h 50m
2 stops
GIG6:15 amRio de Janeiro–Galeão Intl
Jan 14
GIG10:30 pmRio de Janeiro–Galeão Intl
15h 35m
1 stop
STL11:05 amLambert-St Louis
$1,095
Find similar
American Airlines
Feb 14
STL11:17 amLambert-St Louis
17h 48m
1 stop
GRU8:05 amSao Paulo Guarulhos Intl
Feb 20
GRU12:15 amSao Paulo Guarulhos Intl
20h 14m
1 stop
STL5:29 pmLambert-St Louis
$1,165
Find similar
American Airlines
Jan 7
STL9:54 amLambert-St Louis
17h 21m
2 stops
GIG6:15 amRio de Janeiro–Galeão Intl
Jan 14
GIG10:30 pmRio de Janeiro–Galeão Intl
17h 33m
2 stops
STL1:03 pmLambert-St Louis
$1,229
Find similar

LATAM Airlines flights from St. Louis to Brazil

Our best LATAM Airlines deals on St. Louis to Brazil flight tickets
LATAM Airlines
Jan 7
STL5:00 pmLambert-St Louis
12h 20m
1 stop
GIG8:20 amRio de Janeiro–Galeão Intl
Jan 14
GIG5:15 pmRio de Janeiro–Galeão Intl
20h 50m
2 stops
STL11:05 amLambert-St Louis
$1,033
Find similar
LATAM Airlines
Feb 2
STL3:45 pmLambert-St Louis
13h 35m
1 stop
GIG8:20 amRio de Janeiro–Galeão Intl
Feb 7
GIG9:30 pmRio de Janeiro–Galeão Intl
17h 24m
1 stop
STL11:54 amLambert-St Louis
$1,084
Find similar
LATAM Airlines
Jan 7
STL5:00 pmLambert-St Louis
12h 20m
1 stop
GIG8:20 amRio de Janeiro–Galeão Intl
Jan 13
GIG2:05 amRio de Janeiro–Galeão Intl
33h 48m
2 stops
STL8:53 amLambert-St Louis
$1,091
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 noviembre 20, 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. LouisSao Paulo

STL - GRU

STLGRU

Lambert-St Louis

mié. 3/11

4:05 pm-9:00 am

2 stops38h 55m

Sao Paulo Guarulhos Intl

lun. 3/16

9:15 pm-3:29 pm

2 stops20h 14m

$764

St. LouisSao Paulo

STL - CGH

STLCGH

Lambert-St Louis

lun. 3/30

5:03 pm-7:15 pm

2 stops24h 12m

Sao Paulo Congonhas

mié. 4/1

11:50 am-11:37 pm

2 stops37h 47m

$768

St. LouisSao Paulo

STL - GRU

STLGRU

Lambert-St Louis

mié. 3/11

4:05 pm-9:00 am

1 stop14h 55m

Sao Paulo Guarulhos Intl

lun. 3/16

9:15 pm-3:29 pm

2 stops20h 14m

$839

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

mié. 1/7

5:00 pm-8:20 am

1 stop12h 20m

Rio de Janeiro–Galeão Intl

mié. 1/14

5:15 pm-11:05 am

2 stops20h 50m

$1,033

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

lun. 1/19

6:00 am-6:25 am

2 stops21h 25m

Rio de Janeiro–Galeão Intl

lun. 1/26

9:30 pm-4:07 pm

1 stop21h 37m

$1,041

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

lun. 1/19

9:57 am-9:35 am

2 stops20h 38m

Rio de Janeiro–Galeão Intl

lun. 1/26

9:55 pm-4:03 pm

2 stops21h 08m

$1,045

St. LouisRio de Janeiro

STL - SDU

STLSDU

Lambert-St Louis

lun. 1/19

9:59 am-9:25 am

2 stops20h 26m

Rio de Janeiro Santos Dumont

lun. 1/26

8:05 pm-11:54 am

2 stops18h 49m

$1,058

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

lun. 2/2

3:45 pm-8:20 am

1 stop13h 35m

Rio de Janeiro–Galeão Intl

sáb. 2/7

9:30 pm-11:54 am

1 stop17h 24m

$1,084

St. LouisFortaleza

STL - FOR

STLFOR

Lambert-St Louis

jue. 12/11

5:10 am-3:55 pm

2 stops31h 45m

Fortaleza Pinto Martins

sáb. 1/17

3:55 pm-11:03 am

2 stops22h 08m

$1,306

St. LouisSao Paulo

STL - CGH

STLCGH

Lambert-St Louis

mié. 12/24

6:00 pm-2:25 pm

2 stops17h 25m

Sao Paulo Congonhas

mié. 12/31

6:10 pm-10:50 am

2 stops19h 40m

$1,358

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
8,002 reviews
Search Delta flights
LATAM AirlinesPriceFrom $756Free CancellationRating
7.5
1,882 reviews
Search LATAM Airlines flights
Air CanadaPriceFrom $758Free CancellationRating
7.1
10,462 reviews
Search Air Canada flights
American AirlinesPriceFrom $761Free CancellationRating
7.2
11,046 reviews
Search American Airlines flights
United AirlinesPriceFrom $938Free CancellationRating
7.4
9,028 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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sáb. 12/20
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