Cheap flights from St. Louis to Brazil from $365

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 4/21. 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.
Multiple Airlines Logo
4:51 pm - 4:50 am
STL
-
GRU
33h 59m
1 stop
Multiple Airlines Logo
11:10 am - 11:25 pm
GRU
-
STL
38h 15m
2 stops
$751Multiple Airlines
Tue, Mar 31 - Tue, Apr 7
GOL Logo
11:06 am - 10:45 pm
STL
-
GRU
33h 39m
2 stops
GOL Logo
6:00 am - 10:16 am
GRU
-
STL
30h 16m
2 stops
$817GOL
Fri, May 8 - Sat, May 16
GOL Logo
11:04 am - 7:55 am
STL
-
GRU
18h 51m
2 stops
GOL Logo
9:55 pm - 11:59 pm
GRU
-
STL
28h 04m
2 stops
$841GOL
Wed, Jul 8 - Wed, Aug 5
GOL Logo
11:04 am - 10:30 am
STL
-
CGH
21h 26m
2 stops
GOL Logo
8:10 pm - 11:59 pm
CGH
-
STL
29h 49m
2 stops
$859GOL
Wed, Jul 8 - Wed, Aug 5
Multiple Airlines Logo
4:51 pm - 10:30 pm
STL
-
GRU
27h 39m
2 stops
Multiple Airlines Logo
11:40 am - 11:25 pm
GRU
-
STL
13h 45m
1 stop
$884Multiple Airlines
Mon, Mar 30 - Mon, Apr 6
LATAM Airlines Logo
1:30 pm - 5:20 pm
STL
-
GIG
25h 50m
2 stops
LATAM Airlines Logo
7:00 am - 11:37 pm
GIG
-
STL
18h 37m
2 stops
$1,064LATAM Airlines
Tue, Aug 4 - Thu, Aug 27
LATAM Airlines Logo
7:03 am - 7:20 am
STL
-
GIG
22h 17m
1 stop
LATAM Airlines Logo
9:30 pm - 5:53 pm
GIG
-
STL
22h 23m
1 stop
$1,129LATAM Airlines
Tue, Mar 17 - Wed, Mar 25
American Airlines Logo
5:18 pm - 2:05 pm
STL
-
GIG
18h 47m
2 stops
American Airlines Logo
10:10 pm - 11:59 pm
GIG
-
STL
27h 49m
1 stop
$1,139American Airlines
Tue, Aug 4 - Thu, Aug 27
Air Canada Logo
4:05 pm - 4:45 pm
STL
-
SDU
22h 40m
2 stops
Air Canada Logo
1:45 pm - 3:24 pm
SDU
-
STL
27h 39m
2 stops
$1,303Air Canada
Thu, Apr 9 - Mon, Apr 13
United Airlines Logo
4:47 pm - 4:45 pm
STL
-
SDU
21h 58m
2 stops
United Airlines Logo
1:50 pm - 9:21 am
SDU
-
STL
21h 31m
2 stops
$1,405United Airlines
Mon, Mar 9 - Mon, Mar 16

GOL flights from St. Louis to Brazil

Our best GOL deals on St. Louis to Brazil flight tickets
GOL
May 8
STL11:06 amLambert-St Louis
33h 39m
2 stops
GRU10:45 pmSao Paulo Guarulhos Intl
May 16
GRU6:00 amSao Paulo Guarulhos Intl
30h 16m
2 stops
STL10:16 amLambert-St Louis
$817
GOL
Jul 8
STL11:04 amLambert-St Louis
18h 51m
2 stops
GRU7:55 amSao Paulo Guarulhos Intl
Aug 5
GRU9:55 pmSao Paulo Guarulhos Intl
28h 04m
2 stops
STL11:59 pmLambert-St Louis
$841
GOL
Jul 8
STL11:04 amLambert-St Louis
21h 26m
2 stops
CGH10:30 amSao Paulo Congonhas
Aug 5
CGH8:10 pmSao Paulo Congonhas
29h 49m
2 stops
STL11:59 pmLambert-St Louis
$859

United Airlines flights from St. Louis to Brazil

Our best United Airlines deals on St. Louis to Brazil flight tickets
United Airlines
Jul 15
STL5:29 pmLambert-St Louis
14h 01m
1 stop
GRU9:30 amSao Paulo Guarulhos Intl
Aug 12
GRU10:20 pmSao Paulo Guarulhos Intl
16h 00m
1 stop
STL12:20 pmLambert-St Louis
$1,171
United Airlines
Apr 16
STL6:00 amLambert-St Louis
24h 15m
1 stop
GIG8:15 amRio de Janeiro–Galeão Intl
Apr 21
GIG9:05 pmRio de Janeiro–Galeão Intl
14h 20m
1 stop
STL9:25 amLambert-St Louis
$1,185
United Airlines
Jun 6
STL6:00 amLambert-St Louis
23h 10m
2 stops
GRU7:10 amSao Paulo Guarulhos Intl
Jun 21
GRU10:20 pmSao Paulo Guarulhos Intl
19h 26m
1 stop
STL3:46 pmLambert-St Louis
$1,187

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 February 14, 2026.
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

Tue 3/31

4:51 pm-4:50 am

1 stop33h 59m

Sao Paulo Guarulhos Intl

Tue 4/7

11:10 am-11:25 pm

2 stops38h 15m

$751

St. LouisSao Paulo

STL - GRU

STLGRU

Lambert-St Louis

Fri 5/8

11:06 am-10:45 pm

2 stops33h 39m

Sao Paulo Guarulhos Intl

Sat 5/16

6:00 am-10:16 am

2 stops30h 16m

$817

St. LouisSao Paulo

STL - GRU

STLGRU

Lambert-St Louis

Wed 7/8

11:04 am-7:55 am

2 stops18h 51m

Sao Paulo Guarulhos Intl

Wed 8/5

9:55 pm-11:59 pm

2 stops28h 04m

$841

St. LouisSao Paulo

STL - CGH

STLCGH

Lambert-St Louis

Wed 7/8

11:04 am-10:30 am

2 stops21h 26m

Sao Paulo Congonhas

Wed 8/5

8:10 pm-11:59 pm

2 stops29h 49m

$859

St. LouisSao Paulo

STL - GRU

STLGRU

Lambert-St Louis

Mon 3/30

4:51 pm-10:30 pm

2 stops27h 39m

Sao Paulo Guarulhos Intl

Mon 4/6

11:40 am-11:25 pm

1 stop13h 45m

$884

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Tue 8/4

1:30 pm-5:20 pm

2 stops25h 50m

Rio de Janeiro–Galeão Intl

Thu 8/27

7:00 am-11:37 pm

2 stops18h 37m

$1,064

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Tue 3/17

7:03 am-7:20 am

1 stop22h 17m

Rio de Janeiro–Galeão Intl

Wed 3/25

9:30 pm-5:53 pm

1 stop22h 23m

$1,129

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Tue 8/4

5:18 pm-2:05 pm

2 stops18h 47m

Rio de Janeiro–Galeão Intl

Thu 8/27

10:10 pm-11:59 pm

1 stop27h 49m

$1,139

St. LouisRio de Janeiro

STL - SDU

STLSDU

Lambert-St Louis

Thu 4/9

4:05 pm-4:45 pm

2 stops22h 40m

Rio de Janeiro Santos Dumont

Mon 4/13

1:45 pm-3:24 pm

2 stops27h 39m

$1,303

St. LouisRio de Janeiro

STL - SDU

STLSDU

Lambert-St Louis

Mon 3/9

4:47 pm-4:45 pm

2 stops21h 58m

Rio de Janeiro Santos Dumont

Mon 3/16

1:50 pm-9:21 am

2 stops21h 31m

$1,405

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 October is also very affordable. Most momondo users find prices during this month for around $1,118.

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 35m

Direct flights

None
The fastest flight from St. Louis to Brazil takes 12h 35m
There are no direct flights from St. Louis to Brazil. There are no popular flight routes 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?

  • 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
Air CanadaPriceFrom $758Free CancellationRating
7.1
10,717 reviews
Search Air Canada flights
GOLPriceFrom $970Free CancellationRating
7.3
1,172 reviews
Search GOL flights
LATAM AirlinesPriceFrom $973Free CancellationRating
7.5
1,920 reviews
Search LATAM Airlines flights
DeltaPriceFrom $1,051Free CancellationRating
7.9
8,200 reviews
Search Delta flights
American AirlinesPriceFrom $1,064Free CancellationRating
7.2
11,294 reviews
Search American 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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1 adult
Mon 3/16
Mon 3/23

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