Cheap flights from St. Louis to Brazil from $335

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 3/6. 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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0 bags

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Cheap round-trip flights

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Multiple Airlines Logo
3:49 pm - 8:50 am
STL
-
GRU
14h 01m
1 stop
Multiple Airlines Logo
10:20 am - 11:19 pm
GRU
-
STL
14h 59m
1 stop
$640Multiple Airlines
Sun, Mar 1 - Sun, Mar 8
Multiple Airlines Logo
3:49 pm - 8:50 am
STL
-
GRU
14h 01m
1 stop
Multiple Airlines Logo
3:40 am - 6:02 am
GRU
-
STL
29h 22m
2 stops
$644Multiple Airlines
Sun, Mar 1 - Sat, Mar 7
Air Canada Logo
4:05 pm - 9:00 am
STL
-
GRU
37h 55m
2 stops
Air Canada Logo
9:45 pm - 3:29 pm
GRU
-
STL
20h 44m
2 stops
$845Air Canada
Mon, Jan 26 - Wed, Feb 11
Air Canada Logo
1:00 pm - 9:50 am
STL
-
GRU
18h 50m
1 stop
Air Canada Logo
9:00 pm - 12:06 pm
GRU
-
STL
41h 06m
2 stops
$847Air Canada
Wed, May 13 - Sat, May 23
LATAM Airlines Logo
5:30 pm - 1:40 am
STL
-
FOR
30h 10m
2 stops
LATAM Airlines Logo
7:00 pm - 6:02 pm
FOR
-
STL
25h 02m
2 stops
$993LATAM Airlines
Mon, Jul 13 - Thu, Aug 13
LATAM Airlines Logo
5:30 pm - 4:30 pm
STL
-
GIG
21h 00m
2 stops
LATAM Airlines Logo
7:00 am - 11:37 pm
GIG
-
STL
18h 37m
2 stops
$1,053LATAM Airlines
Wed, Jul 15 - Wed, Aug 12
Delta Logo
5:00 pm - 1:10 pm
STL
-
FOR
42h 10m
2 stops
Delta Logo
4:50 pm - 12:53 pm
FOR
-
STL
22h 03m
2 stops
$1,055Delta
Mon, Jul 13 - Wed, Aug 12
Delta Logo
5:30 pm - 4:30 pm
STL
-
GIG
21h 00m
2 stops
Delta Logo
7:00 am - 11:37 pm
GIG
-
STL
18h 37m
2 stops
$1,061Delta
Wed, Jul 15 - Thu, Aug 13
United Airlines Logo
9:10 am - 4:45 pm
STL
-
SDU
29h 35m
2 stops
United Airlines Logo
2:50 pm - 9:08 pm
SDU
-
STL
32h 18m
2 stops
$1,325United Airlines
Thu, Apr 9 - Sun, Apr 12
United Airlines Logo
6:00 pm - 4:45 pm
STL
-
SDU
44h 45m
2 stops
United Airlines Logo
1:45 pm - 4:35 pm
SDU
-
STL
28h 50m
2 stops
$1,351United Airlines
Wed, Jul 15 - Wed, Aug 12

Air Canada flights from St. Louis to Brazil

Our best Air Canada deals on St. Louis to Brazil flight tickets
Air Canada
Jan 19
STL4:05 pmLambert-St Louis
37h 55m
2 stops
GRU9:00 amSao Paulo Guarulhos Intl
Feb 3
GRU9:30 pmSao Paulo Guarulhos Intl
20h 45m
1 stop
STL3:15 pmLambert-St Louis
$829
Air Canada
Jan 26
STL4:05 pmLambert-St Louis
37h 55m
2 stops
GRU9:00 amSao Paulo Guarulhos Intl
Feb 11
GRU9:45 pmSao Paulo Guarulhos Intl
20h 44m
2 stops
STL3:29 pmLambert-St Louis
$845
Air Canada
May 13
STL1:00 pmLambert-St Louis
18h 50m
1 stop
GRU9:50 amSao Paulo Guarulhos Intl
May 23
GRU9:00 pmSao Paulo Guarulhos Intl
41h 06m
2 stops
STL12:06 pmLambert-St Louis
$847

LATAM Airlines flights from St. Louis to Brazil

Our best LATAM Airlines deals on St. Louis to Brazil flight tickets
LATAM Airlines
Jul 13
STL5:30 pmLambert-St Louis
30h 10m
2 stops
FOR1:40 amFortaleza Pinto Martins
Aug 13
FOR7:00 pmFortaleza Pinto Martins
25h 02m
2 stops
STL6:02 pmLambert-St Louis
$993
LATAM Airlines
Jul 15
STL5:30 pmLambert-St Louis
21h 00m
2 stops
GIG4:30 pmRio de Janeiro–Galeão Intl
Aug 12
GIG7:00 amRio de Janeiro–Galeão Intl
18h 37m
2 stops
STL11:37 pmLambert-St Louis
$1,053
LATAM Airlines
Jun 17
STL6:00 amLambert-St Louis
21h 40m
1 stop
GRU5:40 amSao Paulo Guarulhos Intl
Jul 15
GRU8:15 amSao Paulo Guarulhos Intl
17h 22m
2 stops
STL11:37 pmLambert-St Louis
$1,054

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 January 16, 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

Sun 3/1

3:49 pm-8:50 am

1 stop14h 01m

Sao Paulo Guarulhos Intl

Sun 3/8

10:20 am-11:19 pm

1 stop14h 59m

$640

St. LouisSao Paulo

STL - GRU

STLGRU

Lambert-St Louis

Sun 3/1

3:49 pm-8:50 am

1 stop14h 01m

Sao Paulo Guarulhos Intl

Sat 3/7

3:40 am-6:02 am

2 stops29h 22m

$644

St. LouisSao Paulo

STL - GRU

STLGRU

Lambert-St Louis

Mon 1/26

4:05 pm-9:00 am

2 stops37h 55m

Sao Paulo Guarulhos Intl

Wed 2/11

9:45 pm-3:29 pm

2 stops20h 44m

$845

St. LouisSao Paulo

STL - GRU

STLGRU

Lambert-St Louis

Wed 5/13

1:00 pm-9:50 am

1 stop18h 50m

Sao Paulo Guarulhos Intl

Sat 5/23

9:00 pm-12:06 pm

2 stops41h 06m

$847

St. LouisFortaleza

STL - FOR

STLFOR

Lambert-St Louis

Mon 7/13

5:30 pm-1:40 am

2 stops30h 10m

Fortaleza Pinto Martins

Thu 8/13

7:00 pm-6:02 pm

2 stops25h 02m

$993

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Wed 7/15

5:30 pm-4:30 pm

2 stops21h 00m

Rio de Janeiro–Galeão Intl

Wed 8/12

7:00 am-11:37 pm

2 stops18h 37m

$1,053

St. LouisFortaleza

STL - FOR

STLFOR

Lambert-St Louis

Mon 7/13

5:00 pm-1:10 pm

2 stops42h 10m

Fortaleza Pinto Martins

Wed 8/12

4:50 pm-12:53 pm

2 stops22h 03m

$1,055

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Wed 7/15

5:30 pm-4:30 pm

2 stops21h 00m

Rio de Janeiro–Galeão Intl

Thu 8/13

7:00 am-11:37 pm

2 stops18h 37m

$1,061

St. LouisRio de Janeiro

STL - SDU

STLSDU

Lambert-St Louis

Thu 4/9

9:10 am-4:45 pm

2 stops29h 35m

Rio de Janeiro Santos Dumont

Sun 4/12

2:50 pm-9:08 pm

2 stops32h 18m

$1,325

St. LouisRio de Janeiro

STL - SDU

STLSDU

Lambert-St Louis

Wed 7/15

6:00 pm-4:45 pm

2 stops44h 45m

Rio de Janeiro Santos Dumont

Wed 8/12

1:45 pm-4:35 pm

2 stops28h 50m

$1,351

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 March is also very affordable. Most momondo users find prices during this month for around $918.

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

14h 01m

Direct flights

None
The fastest flight from St. Louis to Brazil takes 14h 01m
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
10,624 reviews
Search Air Canada flights
GOLPriceFrom $800Free CancellationRating
7.3
1,151 reviews
Search GOL flights
DeltaPriceFrom $858Free CancellationRating
7.9
8,050 reviews
Search Delta flights
United AirlinesPriceFrom $938Free CancellationRating
7.4
9,164 reviews
Search United Airlines flights
LATAM AirlinesPriceFrom $973Free CancellationRating
7.5
1,906 reviews
Search LATAM Airlines flights
American AirlinesPriceFrom $1,164Free CancellationRating
7.2
11,135 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
Sun 2/15
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