Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from St. Louis to Brazil from $338

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 12/10. 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.
Search flight deals

Find the cheapest flights from St. Louis to Brazil

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
4:05 pm - 11:05 amSTL-GIG
17h 00m1 stop
Air Canada Logo
8:00 pm - 3:29 pmGIG-STL
21h 29m1 stop
$696Air Canada
Find Deal
Sat, Mar 21 - Wed, Mar 25
Multiple Airlines Logo
4:05 pm - 12:05 pmSTL-GIG
17h 00m1 stop
Multiple Airlines Logo
8:45 pm - 3:29 pmGIG-STL
44h 44m2 stops
$752Multiple Airlines
Find Deal
Sat, Mar 7 - Wed, Mar 11
Air Canada Logo
4:05 pm - 12:05 pmSTL-GIG
17h 00m1 stop
Air Canada Logo
8:00 pm - 3:29 pmGIG-STL
21h 29m1 stop
$764Air Canada
Find Deal
Sat, Mar 7 - Wed, Mar 11
Delta Logo
5:00 pm - 1:55 amSTL-FOR
29h 55m2 stops
Delta Logo
4:40 pm - 11:36 amFOR-STL
20h 56m2 stops
$766Delta
Find Deal
Wed, Mar 4 - Sun, Mar 8
GOL Logo
3:22 pm - 10:15 amSTL-GIG
16h 53m2 stops
GOL Logo
6:00 am - 9:51 pmGIG-STL
17h 51m2 stops
$909GOL
Find Deal
Sat, Mar 21 - Wed, Mar 25
GOL Logo
3:22 pm - 6:45 pmSTL-CGH
25h 23m2 stops
GOL Logo
2:15 pm - 9:51 pmCGH-STL
33h 36m2 stops
$920GOL
Find Deal
Sat, Mar 21 - Wed, Mar 25
LATAM Airlines Logo
3:47 pm - 8:20 amSTL-GIG
13h 33m1 stop
LATAM Airlines Logo
9:30 pm - 11:45 amGIG-STL
16h 15m1 stop
$1,018LATAM Airlines
Find Deal
Mon, Feb 23 - Mon, Mar 9
LATAM Airlines Logo
10:13 am - 6:25 amSTL-GIG
17h 12m2 stops
LATAM Airlines Logo
7:15 am - 11:42 pmGIG-STL
18h 27m2 stops
$1,033LATAM Airlines
Find Deal
Tue, Feb 24 - Tue, Mar 10
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
$1,401American Airlines
Find Deal
Wed, Dec 24 - Wed, Dec 31
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
$1,521American Airlines
Find Deal
Wed, Dec 24 - Wed, Dec 31

United Airlines flights from St. Louis to Brazil

Our best United Airlines deals on St. Louis to Brazil flight tickets
United Airlines
Feb 3
STL3:11 pmLambert-St Louis
13h 04m
1 stop
GRU7:15 amSao Paulo Guarulhos Intl
Feb 13
GRU10:15 pmSao Paulo Guarulhos Intl
20h 23m
1 stop
STL3:38 pmLambert-St Louis
$1,130
Find similar
United Airlines
Dec 24
STL11:05 amLambert-St Louis
17h 10m
1 stop
GRU7:15 amSao Paulo Guarulhos Intl
Dec 31
GRU10:15 pmSao Paulo Guarulhos Intl
14h 34m
1 stop
STL9:49 amLambert-St Louis
$1,283
Find similar
United Airlines
Dec 24
STL9:55 amLambert-St Louis
20h 35m
2 stops
GRU9:30 amSao Paulo Guarulhos Intl
Dec 31
GRU10:15 pmSao Paulo Guarulhos Intl
14h 34m
1 stop
STL9:49 amLambert-St Louis
$1,288
Find similar

Delta flights from St. Louis to Brazil

Our best Delta deals on St. Louis to Brazil flight tickets
Delta
Mar 4
STL5:00 pmLambert-St Louis
29h 55m
2 stops
FOR1:55 amFortaleza Pinto Martins
Mar 8
FOR4:40 pmFortaleza Pinto Martins
20h 56m
2 stops
STL11:36 amLambert-St Louis
$766
Find similar
Delta
Mar 13
STL10:02 amLambert-St Louis
21h 13m
2 stops
GIG9:15 amRio de Janeiro–Galeão Intl
Mar 23
GIG10:55 pmRio de Janeiro–Galeão Intl
24h 15m
2 stops
STL9:10 pmLambert-St Louis
$1,084
Find similar
Delta
Jun 1
STL5:00 pmLambert-St Louis
13h 50m
1 stop
GRU8:50 amSao Paulo Guarulhos Intl
Jun 9
GRU8:30 pmSao Paulo Guarulhos Intl
20h 07m
2 stops
STL2:37 pmLambert-St Louis
$1,113
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 4, 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. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Sat 3/21

4:05 pm-11:05 am

1 stop17h 00m

Rio de Janeiro–Galeão Intl

Wed 3/25

8:00 pm-3:29 pm

1 stop21h 29m

$696

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

8:45 pm-3:29 pm

2 stops44h 44m

$752

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

$764

St. LouisFortaleza

STL - FOR

STLFOR

Lambert-St Louis

Wed 3/4

5:00 pm-1:55 am

2 stops29h 55m

Fortaleza Pinto Martins

Sun 3/8

4:40 pm-11:36 am

2 stops20h 56m

$766

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Sat 3/21

3:22 pm-10:15 am

2 stops16h 53m

Rio de Janeiro–Galeão Intl

Wed 3/25

6:00 am-9:51 pm

2 stops17h 51m

$909

St. LouisSao Paulo

STL - CGH

STLCGH

Lambert-St Louis

Sat 3/21

3:22 pm-6:45 pm

2 stops25h 23m

Sao Paulo Congonhas

Wed 3/25

2:15 pm-9:51 pm

2 stops33h 36m

$920

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Mon 2/23

3:47 pm-8:20 am

1 stop13h 33m

Rio de Janeiro–Galeão Intl

Mon 3/9

9:30 pm-11:45 am

1 stop16h 15m

$1,018

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Tue 2/24

10:13 am-6:25 am

2 stops17h 12m

Rio de Janeiro–Galeão Intl

Tue 3/10

7:15 am-11:42 pm

2 stops18h 27m

$1,033

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

$1,401

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

$1,521

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 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

14h 20m

Direct flights

None
The fastest flight from St. Louis to Brazil takes 14h 20m
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
8,009 reviews
Search Delta flights
LATAM AirlinesPriceFrom $756Free CancellationRating
7.5
1,890 reviews
Search LATAM Airlines flights
Air CanadaPriceFrom $758Free CancellationRating
7.1
10,500 reviews
Search Air Canada flights
American AirlinesPriceFrom $761Free CancellationRating
7.2
11,044 reviews
Search American Airlines flights
United AirlinesPriceFrom $938Free CancellationRating
7.4
9,066 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.

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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 1/3
Sat 1/10
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Brazil

Popular cities in Brazil

Popular flights according to clicks in the last 7 days on momondo
Flights to Sao Paulofrom $344
Flights to Rio de Janeirofrom $396
Flights to Belo Horizontefrom $474
Flights to Salvadorfrom $519
Flights to Florianopolisfrom $532
Flights to Recifefrom $470
Flights to Brasiliafrom $447
Flights to Fortalezafrom $505
Flights to Vitóriafrom $638
Flights to Foz do Iguaçufrom $595
Flights to Curitibafrom $399
Flights to Porto Alegrefrom $398