Cheap flights from St. Louis to Brazil from $605

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 2/3. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.

Find the cheapest flights from St. Louis to Brazil

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:49 pm - 5:40 am
STL
-
GRU
34h 51m
2 stops
Multiple Airlines Logo
10:20 am - 11:19 pm
GRU
-
STL
14h 59m
1 stop
$702Multiple Airlines
Wed, Mar 4 - Wed, Mar 18
Multiple Airlines Logo
3:49 pm - 5:40 am
STL
-
GRU
34h 51m
2 stops
Multiple Airlines Logo
12:55 pm - 11:59 pm
GRU
-
STL
14h 04m
1 stop
$713Multiple Airlines
Sun, Mar 1 - Thu, Mar 5
Multiple Airlines Logo
3:49 pm - 7:55 pm
STL
-
VCP
25h 06m
2 stops
Multiple Airlines Logo
10:10 am - 11:19 pm
VCP
-
STL
15h 09m
1 stop
$725Multiple Airlines
Sun, Mar 1 - Tue, Mar 17
Delta Logo
10:13 am - 1:05 pm
STL
-
FOR
23h 52m
2 stops
Delta Logo
2:30 pm - 11:09 am
FOR
-
STL
22h 39m
2 stops
$807Delta
Thu, Mar 5 - Thu, Mar 12
LATAM Airlines Logo
5:00 pm - 7:15 pm
STL
-
FOR
23h 15m
2 stops
LATAM Airlines Logo
5:00 am - 11:02 am
FOR
-
STL
33h 02m
2 stops
$892LATAM Airlines
Wed, Feb 18 - Wed, Feb 25
Air Canada Logo
4:05 pm - 3:10 pm
STL
-
GIG
20h 05m
2 stops
Air Canada Logo
8:00 pm - 3:29 pm
GIG
-
STL
21h 29m
1 stop
$964Air Canada
Mon, Mar 2 - Wed, Mar 18
Air Canada Logo
2:20 pm - 4:45 pm
STL
-
SDU
24h 25m
2 stops
Air Canada Logo
1:45 pm - 12:06 pm
SDU
-
STL
24h 21m
2 stops
$1,018Air Canada
Tue, May 5 - Fri, May 15
LATAM Airlines Logo
1:30 pm - 11:05 am
STL
-
FOR
19h 35m
2 stops
LATAM Airlines Logo
2:10 pm - 10:41 am
FOR
-
STL
22h 31m
2 stops
$1,082LATAM Airlines
Tue, Jul 7 - Wed, Aug 5
United Airlines Logo
8:30 am - 4:40 pm
STL
-
SDU
30h 10m
2 stops
United Airlines Logo
2:50 pm - 2:42 pm
SDU
-
STL
25h 52m
2 stops
$1,318United Airlines
Tue, Mar 17 - Sun, Mar 22
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 flights from St. Louis to Brazil

Our best United Airlines deals on St. Louis to Brazil flight tickets
United Airlines
Jul 8
STL8:00 amLambert-St Louis
23h 30m
2 stops
GRU9:30 amSao Paulo Guarulhos Intl
Aug 7
GRU9:50 pmSao Paulo Guarulhos Intl
20h 45m
1 stop
STL4:35 pmLambert-St Louis
$1,132
United Airlines
Feb 24
STL4:28 pmLambert-St Louis
14h 07m
1 stop
GIG9:35 amRio de Janeiro–Galeão Intl
Mar 10
GIG8:55 pmRio de Janeiro–Galeão Intl
14h 26m
1 stop
STL9:21 amLambert-St Louis
$1,136
United Airlines
Feb 24
STL10:10 amLambert-St Louis
20h 25m
1 stop
GIG9:35 amRio de Janeiro–Galeão Intl
Mar 10
GIG8:55 pmRio de Janeiro–Galeão Intl
17h 32m
2 stops
STL12:27 pmLambert-St Louis
$1,141

GOL flights from St. Louis to Brazil

Our best GOL deals on St. Louis to Brazil flight tickets
GOL
Mar 11
STL11:22 amLambert-St Louis
31h 33m
2 stops
CGH8:55 pmSao Paulo Congonhas
Mar 25
CGH7:55 pmSao Paulo Congonhas
30h 03m
2 stops
STL11:58 pmLambert-St Louis
$711
GOL
Mar 4
STL6:20 pmLambert-St Louis
37h 25m
2 stops
VCP10:45 amSao Paulo Viracopos
Mar 18
VCP5:55 pmSao Paulo Viracopos
42h 37m
2 stops
STL10:32 amLambert-St Louis
$775
GOL
Mar 4
STL6:20 pmLambert-St Louis
40h 05m
2 stops
GRU1:25 pmSao Paulo Guarulhos Intl
Mar 18
GRU10:50 pmSao Paulo Guarulhos Intl
37h 42m
2 stops
STL10:32 amLambert-St Louis
$781

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 21, 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

Wed 3/4

3:49 pm-5:40 am

2 stops34h 51m

Sao Paulo Guarulhos Intl

Wed 3/18

10:20 am-11:19 pm

1 stop14h 59m

$702

St. LouisSao Paulo

STL - GRU

STLGRU

Lambert-St Louis

Sun 3/1

3:49 pm-5:40 am

2 stops34h 51m

Sao Paulo Guarulhos Intl

Thu 3/5

12:55 pm-11:59 pm

1 stop14h 04m

$713

St. LouisSao Paulo

STL - VCP

STLVCP

Lambert-St Louis

Sun 3/1

3:49 pm-7:55 pm

2 stops25h 06m

Sao Paulo Viracopos

Tue 3/17

10:10 am-11:19 pm

1 stop15h 09m

$725

St. LouisFortaleza

STL - FOR

STLFOR

Lambert-St Louis

Thu 3/5

10:13 am-1:05 pm

2 stops23h 52m

Fortaleza Pinto Martins

Thu 3/12

2:30 pm-11:09 am

2 stops22h 39m

$807

St. LouisFortaleza

STL - FOR

STLFOR

Lambert-St Louis

Wed 2/18

5:00 pm-7:15 pm

2 stops23h 15m

Fortaleza Pinto Martins

Wed 2/25

5:00 am-11:02 am

2 stops33h 02m

$892

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Mon 3/2

4:05 pm-3:10 pm

2 stops20h 05m

Rio de Janeiro–Galeão Intl

Wed 3/18

8:00 pm-3:29 pm

1 stop21h 29m

$964

St. LouisRio de Janeiro

STL - SDU

STLSDU

Lambert-St Louis

Tue 5/5

2:20 pm-4:45 pm

2 stops24h 25m

Rio de Janeiro Santos Dumont

Fri 5/15

1:45 pm-12:06 pm

2 stops24h 21m

$1,018

St. LouisFortaleza

STL - FOR

STLFOR

Lambert-St Louis

Tue 7/7

1:30 pm-11:05 am

2 stops19h 35m

Fortaleza Pinto Martins

Wed 8/5

2:10 pm-10:41 am

2 stops22h 31m

$1,082

St. LouisRio de Janeiro

STL - SDU

STLSDU

Lambert-St Louis

Tue 3/17

8:30 am-4:40 pm

2 stops30h 10m

Rio de Janeiro Santos Dumont

Sun 3/22

2:50 pm-2:42 pm

2 stops25h 52m

$1,318

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

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

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

13h 04m

Direct flights

None
The fastest flight from St. Louis to Brazil takes 13h 04m
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
10,646 reviews
Search Air Canada flights
GOLPriceFrom $800Free CancellationRating
7.3
1,152 reviews
Search GOL flights
DeltaPriceFrom $858Free CancellationRating
7.9
8,088 reviews
Search Delta flights
United AirlinesPriceFrom $938Free CancellationRating
7.4
9,191 reviews
Search United Airlines flights
LATAM AirlinesPriceFrom $973Free CancellationRating
7.5
1,913 reviews
Search LATAM Airlines flights
American AirlinesPriceFrom $1,164Free CancellationRating
7.2
11,174 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.

An easier way to manage your Brazil trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 2/20
Fri 2/27

Find better results for your trip to Brazil

Popular cities in Brazil

Popular flights according to clicks in the last 7 days on momondo