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Cheap flights from St. Louis to Brazil from $345

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 1/27. 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

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
Wed, Mar 11 - Mon, Mar 16
Delta Logo
10:00 am - 11:05 amSTL-FOR
23h 05m2 stops
Delta Logo
2:30 pm - 10:50 amFOR-STL
22h 20m2 stops
$767Delta
Find Deal
Mon, Apr 6 - Wed, Apr 8
GOL Logo
11:19 am - 10:45 amSTL-VCP
20h 26m2 stops
GOL Logo
5:55 pm - 10:05 pmVCP-STL
31h 10m2 stops
$794GOL
Find Deal
Mon, Mar 2 - Wed, Mar 4
GOL Logo
5:03 pm - 5:05 pmSTL-CGH
22h 02m2 stops
GOL Logo
8:00 am - 10:04 pmCGH-STL
40h 04m2 stops
$835GOL
Find Deal
Mon, Mar 30 - Wed, Apr 1
LATAM Airlines Logo
9:30 am - 6:25 pmSTL-FOR
29h 55m2 stops
LATAM Airlines Logo
2:30 pm - 11:05 amFOR-STL
23h 35m2 stops
$1,025LATAM Airlines
Find Deal
Thu, Dec 11 - Sat, Jan 17
LATAM Airlines Logo
9:59 am - 7:10 amSTL-GIG
18h 11m2 stops
LATAM Airlines Logo
9:30 pm - 8:53 amGIG-STL
14h 23m1 stop
$1,033LATAM Airlines
Find Deal
Mon, Jan 26 - Mon, Feb 2
United Airlines Logo
6:40 pm - 9:35 amSTL-GIG
35h 55m2 stops
United Airlines Logo
9:55 pm - 9:22 amGIG-STL
14h 27m1 stop
$1,045United Airlines
Find Deal
Sun, Jan 25 - Wed, Feb 4
United Airlines Logo
6:40 pm - 9:35 amSTL-GIG
35h 55m2 stops
United Airlines Logo
9:55 pm - 10:58 pmGIG-STL
28h 03m2 stops
$1,084United Airlines
Find Deal
Sun, Jan 25 - Sun, Feb 1
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
Wed, Dec 24 - Wed, Dec 31
American Airlines Logo
3:30 pm - 3:55 pmSTL-FOR
21h 25m2 stops
American Airlines Logo
6:30 pm - 5:22 pmFOR-STL
25h 52m2 stops
$1,492American Airlines
Find Deal
Wed, Dec 31 - Wed, Jan 7

Air Canada flights from St. Louis to Brazil

Our best Air Canada deals on St. Louis to Brazil flight tickets
Air Canada
Mar 11
STL4:05 pmLambert-St Louis
38h 55m
2 stops
GRU9:00 amSao Paulo Guarulhos Intl
Mar 16
GRU9:15 pmSao Paulo Guarulhos Intl
20h 14m
2 stops
STL3:29 pmLambert-St Louis
$764
Find similar
Air Canada
Mar 11
STL4:05 pmLambert-St Louis
14h 55m
1 stop
GRU9:00 amSao Paulo Guarulhos Intl
Mar 16
GRU9:15 pmSao Paulo Guarulhos Intl
20h 14m
2 stops
STL3:29 pmLambert-St Louis
$839
Find similar
Air Canada
Mar 11
STL4:05 pmLambert-St Louis
14h 55m
1 stop
GRU9:00 amSao Paulo Guarulhos Intl
Mar 16
GRU9:30 pmSao Paulo Guarulhos Intl
19h 59m
1 stop
STL3:29 pmLambert-St Louis
$914
Find similar

GOL flights from St. Louis to Brazil

Our best GOL deals on St. Louis to Brazil flight tickets
GOL
Mar 2
STL11:19 amLambert-St Louis
20h 26m
2 stops
VCP10:45 amSao Paulo Viracopos
Mar 4
VCP5:55 pmSao Paulo Viracopos
31h 10m
2 stops
STL10:05 pmLambert-St Louis
$794
Find similar
GOL
Mar 30
STL5:03 pmLambert-St Louis
22h 02m
2 stops
CGH5:05 pmSao Paulo Congonhas
Apr 1
CGH8:00 amSao Paulo Congonhas
40h 04m
2 stops
STL10:04 pmLambert-St Louis
$835
Find similar
GOL
Mar 11
STL11:30 amLambert-St Louis
21h 15m
2 stops
VCP10:45 amSao Paulo Viracopos
Mar 16
VCP5:55 pmSao Paulo Viracopos
30h 09m
2 stops
STL10:04 pmLambert-St Louis
$858
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 18, 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

Wed 3/11

4:05 pm-9:00 am

2 stops38h 55m

Sao Paulo Guarulhos Intl

Mon 3/16

9:15 pm-3:29 pm

2 stops20h 14m

$764

St. LouisFortaleza

STL - FOR

STLFOR

Lambert-St Louis

Mon 4/6

10:00 am-11:05 am

2 stops23h 05m

Fortaleza Pinto Martins

Wed 4/8

2:30 pm-10:50 am

2 stops22h 20m

$767

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-10:05 pm

2 stops31h 10m

$794

St. LouisSao Paulo

STL - CGH

STLCGH

Lambert-St Louis

Mon 3/30

5:03 pm-5:05 pm

2 stops22h 02m

Sao Paulo Congonhas

Wed 4/1

8:00 am-10:04 pm

2 stops40h 04m

$835

St. LouisFortaleza

STL - FOR

STLFOR

Lambert-St Louis

Thu 12/11

9:30 am-6:25 pm

2 stops29h 55m

Fortaleza Pinto Martins

Sat 1/17

2:30 pm-11:05 am

2 stops23h 35m

$1,025

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Mon 1/26

9:59 am-7:10 am

2 stops18h 11m

Rio de Janeiro–Galeão Intl

Mon 2/2

9:30 pm-8:53 am

1 stop14h 23m

$1,033

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Sun 1/25

6:40 pm-9:35 am

2 stops35h 55m

Rio de Janeiro–Galeão Intl

Wed 2/4

9:55 pm-9:22 am

1 stop14h 27m

$1,045

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Sun 1/25

6:40 pm-9:35 am

2 stops35h 55m

Rio de Janeiro–Galeão Intl

Sun 2/1

9:55 pm-10:58 pm

2 stops28h 03m

$1,084

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

$1,358

St. LouisFortaleza

STL - FOR

STLFOR

Lambert-St Louis

Wed 12/31

3:30 pm-3:55 pm

2 stops21h 25m

Fortaleza Pinto Martins

Wed 1/7

6:30 pm-5:22 pm

2 stops25h 52m

$1,492

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.
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
8,007 reviews
Search Delta flights
LATAM AirlinesPriceFrom $756Free CancellationRating
7.5
1,876 reviews
Search LATAM Airlines flights
Air CanadaPriceFrom $758Free CancellationRating
7.1
10,459 reviews
Search Air Canada flights
American AirlinesPriceFrom $761Free CancellationRating
7.2
11,048 reviews
Search American Airlines flights
United AirlinesPriceFrom $938Free CancellationRating
7.4
9,016 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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