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Cheap flights from St. Louis to Brazil from $302

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 1/12. 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.
GOL Logo
11:22 am - 1:25 pm
STL
-
GRU
24h 03m2 stops
GOL Logo
6:00 am - 9:51 pm
GRU
-
STL
17h 51m2 stops
$755GOL
Sun, Mar 22 - Sat, Apr 4
GOL Logo
3:22 pm - 10:10 am
STL
-
CGH
16h 48m2 stops
GOL Logo
6:00 am - 9:51 pm
CGH
-
STL
17h 51m2 stops
$760GOL
Sun, Mar 22 - Sat, Apr 4
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
LATAM Airlines Logo
5:00 pm - 8:20 am
STL
-
GIG
12h 20m1 stop
LATAM Airlines Logo
9:30 pm - 11:45 am
GIG
-
STL
16h 15m1 stop
$1,032LATAM Airlines
Tue, Feb 24 - Tue, Mar 10
American Airlines Logo
11:19 am - 9:25 am
STL
-
GIG
19h 06m1 stop
American Airlines Logo
10:55 pm - 5:40 pm
GIG
-
STL
20h 45m1 stop
$1,040American Airlines
Tue, Feb 24 - Tue, Mar 10
Delta Logo
10:02 am - 7:20 am
STL
-
GIG
19h 18m1 stop
Delta Logo
9:30 pm - 3:53 pm
GIG
-
STL
20h 23m1 stop
$1,079Delta
Fri, Mar 13 - Mon, Mar 23
United Airlines Logo
11:25 am - 4:20 pm
STL
-
POA
26h 55m2 stops
United Airlines Logo
3:25 pm - 10:27 am
POA
-
STL
21h 02m2 stops
$1,281United Airlines
Sun, Mar 8 - Wed, Mar 11
United Airlines Logo
9:57 am - 2:30 pm
STL
-
SDU
25h 33m2 stops
United Airlines Logo
2:50 pm - 9:00 pm
SDU
-
STL
33h 10m2 stops
$1,303United Airlines
Wed, Feb 11 - Sun, Feb 15
LATAM Airlines Logo
1:30 pm - 11:05 am
STL
-
FOR
19h 35m2 stops
LATAM Airlines Logo
4:50 pm - 6:02 pm
FOR
-
STL
27h 12m2 stops
$1,560LATAM Airlines
Tue, Jun 2 - Tue, Jun 16
American Airlines Logo
6:00 pm - 2:25 pm
STL
-
CGH
17h 25m2 stops
American Airlines Logo
6:10 pm - 10:50 am
CGH
-
STL
19h 40m2 stops
$1,598American Airlines
Wed, Dec 24 - Wed, Dec 31

GOL flights from St. Louis to Brazil

Our best GOL deals on St. Louis to Brazil flight tickets
GOL
Mar 22
STL11:22 amLambert-St Louis
24h 03m
2 stops
GRU1:25 pmSao Paulo Guarulhos Intl
Apr 4
GRU6:00 amSao Paulo Guarulhos Intl
17h 51m
2 stops
STL9:51 pmLambert-St Louis
$755
Find similar
GOL
Mar 22
STL3:22 pmLambert-St Louis
16h 48m
2 stops
CGH10:10 amSao Paulo Congonhas
Apr 4
CGH6:00 amSao Paulo Congonhas
17h 51m
2 stops
STL9:51 pmLambert-St Louis
$760
Find similar
GOL
May 27
STL10:53 amLambert-St Louis
23h 57m
2 stops
GIG12:50 pmRio de Janeiro–Galeão Intl
Jun 1
GIG6:05 amRio de Janeiro–Galeão Intl
19h 54m
2 stops
STL11:59 pmLambert-St Louis
$844
Find similar

Delta flights from St. Louis to Brazil

Our best Delta deals on St. Louis to Brazil flight tickets
Delta
May 26
STL1:30 pmLambert-St Louis
25h 00m
2 stops
GIG4:30 pmRio de Janeiro–Galeão Intl
Jun 4
GIG9:00 pmRio de Janeiro–Galeão Intl
13h 07m
1 stop
STL8:07 amLambert-St Louis
$1,040
Find similar
Delta
May 23
STL11:51 amLambert-St Louis
26h 39m
2 stops
GIG4:30 pmRio de Janeiro–Galeão Intl
May 31
GIG5:20 pmRio de Janeiro–Galeão Intl
32h 18m
2 stops
STL11:38 pmLambert-St Louis
$1,079
Find similar
Delta
May 27
STL5:30 pmLambert-St Louis
14h 45m
1 stop
GIG10:15 amRio de Janeiro–Galeão Intl
Jun 4
GIG9:00 pmRio de Janeiro–Galeão Intl
13h 07m
1 stop
STL8:07 amLambert-St Louis
$1,148
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 13, 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

Sun 3/22

11:22 am-1:25 pm

2 stops24h 03m

Sao Paulo Guarulhos Intl

Sat 4/4

6:00 am-9:51 pm

2 stops17h 51m

$755

St. LouisSao Paulo

STL - CGH

STLCGH

Lambert-St Louis

Sun 3/22

3:22 pm-10:10 am

2 stops16h 48m

Sao Paulo Congonhas

Sat 4/4

6:00 am-9:51 pm

2 stops17h 51m

$760

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. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Tue 2/24

5:00 pm-8:20 am

1 stop12h 20m

Rio de Janeiro–Galeão Intl

Tue 3/10

9:30 pm-11:45 am

1 stop16h 15m

$1,032

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Tue 2/24

11:19 am-9:25 am

1 stop19h 06m

Rio de Janeiro–Galeão Intl

Tue 3/10

10:55 pm-5:40 pm

1 stop20h 45m

$1,040

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Fri 3/13

10:02 am-7:20 am

1 stop19h 18m

Rio de Janeiro–Galeão Intl

Mon 3/23

9:30 pm-3:53 pm

1 stop20h 23m

$1,079

St. LouisPorto Alegre

STL - POA

STLPOA

Lambert-St Louis

Sun 3/8

11:25 am-4:20 pm

2 stops26h 55m

Porto Alegre Salgado Filho

Wed 3/11

3:25 pm-10:27 am

2 stops21h 02m

$1,281

St. LouisRio de Janeiro

STL - SDU

STLSDU

Lambert-St Louis

Wed 2/11

9:57 am-2:30 pm

2 stops25h 33m

Rio de Janeiro Santos Dumont

Sun 2/15

2:50 pm-9:00 pm

2 stops33h 10m

$1,303

St. LouisFortaleza

STL - FOR

STLFOR

Lambert-St Louis

Tue 6/2

1:30 pm-11:05 am

2 stops19h 35m

Fortaleza Pinto Martins

Tue 6/16

4:50 pm-6:02 pm

2 stops27h 12m

$1,560

St. LouisSao Paulo

STL - CGH

STLCGH

Lambert-St Louis

Wed 12/24

6:00 pm-2:25 pm

2 stops17h 25m

Sao Paulo Congonhas

Wed 12/31

6:10 pm-10:50 am

2 stops19h 40m

$1,598

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

13h 50m

Direct flights

None
The fastest flight from St. Louis to Brazil takes 13h 50m
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
8,006 reviews
Search Delta flights
LATAM AirlinesPriceFrom $756Free CancellationRating
7.5
1,891 reviews
Search LATAM Airlines flights
Air CanadaPriceFrom $758Free CancellationRating
7.1
10,520 reviews
Search Air Canada flights
American AirlinesPriceFrom $761Free CancellationRating
7.2
11,056 reviews
Search American Airlines flights
United AirlinesPriceFrom $938Free CancellationRating
7.4
9,094 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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