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Cheap flights from St. Louis to Brazil from $337

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 12/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

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Multiple Airlines Logo
5:11 pm - 4:17 amSTL-GRU
32h 06m2 stops
Multiple Airlines Logo
11:20 am - 10:33 pmGRU-STL
14h 13m1 stop
$670Multiple Airlines
Find Deal
Sat, Feb 14 - Mon, Feb 23
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
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Wed, Mar 11 - Mon, Mar 16
GOL Logo
11:30 am - 10:25 pmSTL-CGH
32h 55m2 stops
GOL Logo
1:30 pm - 11:37 pmCGH-STL
36h 07m2 stops
$766GOL
Find Deal
Mon, Mar 30 - Wed, Apr 1
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
$769Air Canada
Find Deal
Thu, Mar 5 - Wed, Mar 11
Multiple Airlines Logo
5:11 pm - 3:25 amSTL-GRU
31h 14m2 stops
Multiple Airlines Logo
11:20 am - 11:33 pmGRU-STL
15h 13m1 stop
$773Multiple Airlines
Find Deal
Mon, Jan 12 - Mon, Jan 26
American Airlines Logo
3:37 pm - 5:30 pmSTL-FOR
22h 53m2 stops
American Airlines Logo
6:10 pm - 10:26 amFOR-STL
19h 16m2 stops
$844American Airlines
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Sun, Feb 8 - Sat, Feb 14
GOL Logo
11:30 am - 11:00 amSTL-CGH
21h 30m2 stops
GOL Logo
7:55 pm - 11:37 pmCGH-STL
29h 42m2 stops
$867GOL
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Wed, Mar 11 - Mon, Mar 16
LATAM Airlines Logo
9:30 am - 1:05 pmSTL-FOR
24h 35m2 stops
LATAM Airlines Logo
11:50 am - 8:53 amFOR-STL
24h 03m2 stops
$1,003LATAM Airlines
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Thu, Dec 11 - Sat, Jan 17
American Airlines Logo
11:55 am - 5:30 pmSTL-FOR
26h 35m2 stops
American Airlines Logo
3:55 am - 10:05 pmFOR-STL
21h 10m1 stop
$1,054American Airlines
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Sun, Feb 8 - Fri, Feb 13
LATAM Airlines Logo
9:30 am - 1:05 pmSTL-FOR
24h 35m2 stops
LATAM Airlines Logo
4:35 am - 8:53 amFOR-STL
31h 18m2 stops
$1,055LATAM Airlines
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Thu, Dec 11 - Fri, Jan 16

Delta flights from St. Louis to Brazil

Our best Delta deals on St. Louis to Brazil flight tickets
Delta
Jan 14
STL7:10 amLambert-St Louis
22h 10m
1 stop
GIG8:20 amRio de Janeiro–Galeão Intl
Jan 22
GIG9:30 pmRio de Janeiro–Galeão Intl
14h 23m
1 stop
STL8:53 amLambert-St Louis
$1,040
Find similar
Delta
Mar 8
STL6:59 pmLambert-St Louis
34h 21m
1 stop
GIG7:20 amRio de Janeiro–Galeão Intl
Mar 16
GIG9:30 pmRio de Janeiro–Galeão Intl
13h 22m
1 stop
STL8:52 amLambert-St Louis
$1,049
Find similar
Delta
Jan 14
STL6:00 amLambert-St Louis
24h 35m
1 stop
GRU9:35 amSao Paulo Guarulhos Intl
Jan 21
GRU11:45 pmSao Paulo Guarulhos Intl
23h 52m
1 stop
STL8:37 pmLambert-St Louis
$1,079
Find similar

United Airlines flights from St. Louis to Brazil

Our best United Airlines deals on St. Louis to Brazil flight tickets
United Airlines
Mar 8
STL7:41 amLambert-St Louis
23h 54m
2 stops
GIG9:35 amRio de Janeiro–Galeão Intl
Mar 16
GIG8:55 pmRio de Janeiro–Galeão Intl
14h 26m
1 stop
STL9:21 amLambert-St Louis
$1,084
Find similar
United Airlines
Jan 12
STL4:35 pmLambert-St Louis
14h 00m
1 stop
GIG9:35 amRio de Janeiro–Galeão Intl
Jan 19
GIG9:55 pmRio de Janeiro–Galeão Intl
14h 27m
1 stop
STL9:22 amLambert-St Louis
$1,115
Find similar
United Airlines
Jan 9
STL4:35 pmLambert-St Louis
14h 00m
1 stop
GIG9:35 amRio de Janeiro–Galeão Intl
Jan 21
GIG9:55 pmRio de Janeiro–Galeão Intl
14h 27m
1 stop
STL9:22 amLambert-St Louis
$1,119
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 26, 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

Sat 2/14

5:11 pm-4:17 am

2 stops32h 06m

Sao Paulo Guarulhos Intl

Mon 2/23

11:20 am-10:33 pm

1 stop14h 13m

$670

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. LouisSao Paulo

STL - CGH

STLCGH

Lambert-St Louis

Mon 3/30

11:30 am-10:25 pm

2 stops32h 55m

Sao Paulo Congonhas

Wed 4/1

1:30 pm-11:37 pm

2 stops36h 07m

$766

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Thu 3/5

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. LouisSao Paulo

STL - GRU

STLGRU

Lambert-St Louis

Mon 1/12

5:11 pm-3:25 am

2 stops31h 14m

Sao Paulo Guarulhos Intl

Mon 1/26

11:20 am-11:33 pm

1 stop15h 13m

$773

St. LouisFortaleza

STL - FOR

STLFOR

Lambert-St Louis

Sun 2/8

3:37 pm-5:30 pm

2 stops22h 53m

Fortaleza Pinto Martins

Sat 2/14

6:10 pm-10:26 am

2 stops19h 16m

$844

St. LouisSao Paulo

STL - CGH

STLCGH

Lambert-St Louis

Wed 3/11

11:30 am-11:00 am

2 stops21h 30m

Sao Paulo Congonhas

Mon 3/16

7:55 pm-11:37 pm

2 stops29h 42m

$867

St. LouisFortaleza

STL - FOR

STLFOR

Lambert-St Louis

Thu 12/11

9:30 am-1:05 pm

2 stops24h 35m

Fortaleza Pinto Martins

Sat 1/17

11:50 am-8:53 am

2 stops24h 03m

$1,003

St. LouisFortaleza

STL - FOR

STLFOR

Lambert-St Louis

Sun 2/8

11:55 am-5:30 pm

2 stops26h 35m

Fortaleza Pinto Martins

Fri 2/13

3:55 am-10:05 pm

1 stop21h 10m

$1,054

St. LouisFortaleza

STL - FOR

STLFOR

Lambert-St Louis

Thu 12/11

9:30 am-1:05 pm

2 stops24h 35m

Fortaleza Pinto Martins

Fri 1/16

4:35 am-8:53 am

2 stops31h 18m

$1,055

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

14h 00m

Direct flights

None
The fastest flight from St. Louis to Brazil takes 14h 00m
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
7,998 reviews
Search Delta flights
LATAM AirlinesPriceFrom $756Free CancellationRating
7.5
1,886 reviews
Search LATAM Airlines flights
Air CanadaPriceFrom $758Free CancellationRating
7.1
10,481 reviews
Search Air Canada flights
American AirlinesPriceFrom $761Free CancellationRating
7.2
11,038 reviews
Search American Airlines flights
United AirlinesPriceFrom $938Free CancellationRating
7.4
9,046 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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