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Cheap flights from St. Louis to Sao Paulo 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 Sao Paulo 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.
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0 bags

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Find the cheapest flights from St. Louis to Sao Paulo

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
4:05 pm - 9:00 am
STL
-
GRU
37h 55m2 stops
Air Canada Logo
9:30 pm - 3:29 pm
GRU
-
STL
19h 59m1 stop
$772Air Canada
Sat, Mar 7 - Wed, Mar 11
Air Canada Logo
4:05 pm - 9:00 am
STL
-
GRU
37h 55m2 stops
Air Canada Logo
9:15 pm - 3:29 pm
GRU
-
STL
20h 14m2 stops
$775Air Canada
Sat, Mar 7 - Wed, Mar 11
Air Canada Logo
4:05 pm - 2:10 pm
STL
-
CGH
20h 05m2 stops
Air Canada Logo
5:05 pm - 3:29 pm
CGH
-
STL
24h 24m2 stops
$862Air Canada
Sat, Mar 21 - Wed, Mar 25
GOL Logo
11:00 am - 11:00 am
STL
-
VCP
21h 00m2 stops
GOL Logo
5:55 pm - 10:26 am
VCP
-
STL
19h 31m2 stops
$923GOL
Sat, Feb 14 - Sat, Feb 21
GOL Logo
3:22 pm - 6:45 pm
STL
-
CGH
25h 23m2 stops
GOL Logo
2:15 pm - 9:51 pm
CGH
-
STL
33h 36m2 stops
$929GOL
Sat, Mar 21 - Wed, Mar 25
Air Canada Logo
4:05 pm - 9:00 am
STL
-
GRU
13h 55m1 stop
Air Canada Logo
9:30 pm - 3:29 pm
GRU
-
STL
20h 59m1 stop
$994Air Canada
Wed, Feb 4 - Tue, Feb 10
Air Canada Logo
4:05 pm - 9:00 am
STL
-
GRU
37h 55m2 stops
Air Canada Logo
9:30 pm - 3:29 pm
GRU
-
STL
20h 59m1 stop
$997Air Canada
Wed, Feb 4 - Tue, Feb 10
Multiple Airlines Logo
4:05 pm - 2:40 am
STL
-
GRU
31h 35m2 stops
Multiple Airlines Logo
7:35 am - 3:29 pm
GRU
-
STL
34h 54m3 stops
$1,016Multiple Airlines
Wed, Feb 4 - Tue, Feb 10
Multiple Airlines Logo
4:05 pm - 2:40 am
STL
-
GRU
31h 35m3 stops
Multiple Airlines Logo
7:35 am - 3:29 pm
GRU
-
STL
34h 54m3 stops
$1,020Multiple Airlines
Wed, Feb 4 - Tue, Feb 10
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
$1,401American Airlines
Wed, Dec 24 - Wed, Dec 31

Delta flights from St. Louis to Sao Paulo

Our best Delta deals on St. Louis to Sao Paulo flight tickets
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
Delta
Feb 14
STL6:00 amLambert-St Louis
20h 40m
1 stop
GRU5:40 amSao Paulo Guarulhos Intl
Feb 21
GRU11:45 pmSao Paulo Guarulhos Intl
21h 06m
1 stop
STL5:51 pmLambert-St Louis
$1,170
Find similar
Delta
Jun 1
STL5:00 pmLambert-St Louis
13h 50m
1 stop
GRU8:50 amSao Paulo Guarulhos Intl
Jun 9
GRU10:50 pmSao Paulo Guarulhos Intl
19h 08m
1 stop
STL3:58 pmLambert-St Louis
$1,190
Find similar

Air Canada flights from St. Louis to Sao Paulo

Our best Air Canada deals on St. Louis to Sao Paulo flight tickets
Air Canada
Mar 7
STL4:05 pmLambert-St Louis
37h 55m
2 stops
GRU9:00 amSao Paulo Guarulhos Intl
Mar 11
GRU9:30 pmSao Paulo Guarulhos Intl
19h 59m
1 stop
STL3:29 pmLambert-St Louis
$772
Find similar
Air Canada
Mar 7
STL4:05 pmLambert-St Louis
37h 55m
2 stops
GRU9:00 amSao Paulo Guarulhos Intl
Mar 11
GRU9:15 pmSao Paulo Guarulhos Intl
20h 14m
2 stops
STL3:29 pmLambert-St Louis
$775
Find similar
Air Canada
Mar 21
STL4:05 pmLambert-St Louis
20h 05m
2 stops
CGH2:10 pmSao Paulo Congonhas
Mar 25
CGH5:05 pmSao Paulo Congonhas
24h 24m
2 stops
STL3:29 pmLambert-St Louis
$862
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Sao Paulo 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 Sao Paulo that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisSao Paulo

STL - GRU

STLGRU

Lambert-St Louis

Sat 3/7

4:05 pm-9:00 am

2 stops37h 55m

Sao Paulo Guarulhos Intl

Wed 3/11

9:30 pm-3:29 pm

1 stop19h 59m

$772

St. LouisSao Paulo

STL - GRU

STLGRU

Lambert-St Louis

Sat 3/7

4:05 pm-9:00 am

2 stops37h 55m

Sao Paulo Guarulhos Intl

Wed 3/11

9:15 pm-3:29 pm

2 stops20h 14m

$775

St. LouisSao Paulo

STL - CGH

STLCGH

Lambert-St Louis

Sat 3/21

4:05 pm-2:10 pm

2 stops20h 05m

Sao Paulo Congonhas

Wed 3/25

5:05 pm-3:29 pm

2 stops24h 24m

$862

St. LouisSao Paulo

STL - VCP

STLVCP

Lambert-St Louis

Sat 2/14

11:00 am-11:00 am

2 stops21h 00m

Sao Paulo Viracopos

Sat 2/21

5:55 pm-10:26 am

2 stops19h 31m

$923

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

$929

St. LouisSao Paulo

STL - GRU

STLGRU

Lambert-St Louis

Wed 2/4

4:05 pm-9:00 am

1 stop13h 55m

Sao Paulo Guarulhos Intl

Tue 2/10

9:30 pm-3:29 pm

1 stop20h 59m

$994

St. LouisSao Paulo

STL - GRU

STLGRU

Lambert-St Louis

Wed 2/4

4:05 pm-9:00 am

2 stops37h 55m

Sao Paulo Guarulhos Intl

Tue 2/10

9:30 pm-3:29 pm

1 stop20h 59m

$997

St. LouisSao Paulo

STL - GRU

STLGRU

Lambert-St Louis

Wed 2/4

4:05 pm-2:40 am

2 stops31h 35m

Sao Paulo Guarulhos Intl

Tue 2/10

7:35 am-3:29 pm

3 stops34h 54m

$1,016

St. LouisSao Paulo

STL - GRU

STLGRU

Lambert-St Louis

Wed 2/4

4:05 pm-2:40 am

3 stops31h 35m

Sao Paulo Guarulhos Intl

Tue 2/10

7:35 am-3:29 pm

3 stops34h 54m

$1,020

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

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 Sao Paulo from

How to get the cheapest flight ticket from St. Louis to Sao Paulo

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 typical price of a round-trip flight between St. Louis and Sao Paulo?

What is the cheapest month to fly to Sao Paulo?

The cheapest month to fly to Sao Paulo from St. Louis is in April. Flight prices, which tend to average around $698, are often lower during this time because this is during the off-season. If you don’t want to visit Sao Paulo in April, then you should wait until May to fly from St. Louis, when ticket prices are also cheap, with an average price of $831.

What is the cheapest day to depart on your flight to Sao Paulo?

The cheapest day to depart on your flight to Sao Paulo is on a Tuesday when prices can be found for as low as $949. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday is the most expensive day to depart from St. Louis because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,206.

What is the cheapest time of day to depart on your flight to Sao Paulo?

In the afternoon is the cheapest time of day to fly from St. Louis to Sao Paulo when you can find flight prices for as low as $1,059. Flying to Sao Paulo in the afternoon is an ideal time because this is during off-peak travel hours. Flights to Sao Paulo are more costly at noon, with an average ticket price of $1,179. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

Can stopping save me money on St. Louis to Sao Paulo flights?

You could potentially save up to 42% on your flight if you consider stops on a St. Louis to Sao Paulo flight.

When to book flights from St. Louis to Sao Paulo

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Sao Paulo according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Sao Paulo (STL to SAO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Sao Paulo

Fastest flight time

17h 30m

Direct flights

None
The fastest flight from St. Louis to Sao Paulo takes 17h 30m
There are no direct flights from St. Louis to Sao Paulo. There are no popular flight routes from St. Louis to Sao Paulo.
Search flight deals

  • How far is Lambert-St Louis to Sao Paulo by plane?

    Lambert-St Louis and Sao Paulo are 5134.3 mi apart from one another. Flights usually cover this in 13h 04m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Sao Paulo?

    Prices for flights from Lambert-St Louis Airport to Sao Paulo are updated daily.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Sao Paulo?

  • How old do you have to be to fly from Lambert-St Louis Airport to Sao Paulo?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Lambert-St Louis Airport to Sao Paulo.

  • What documentation or ID do you need to fly to Sao Paulo?

    The travel and health documents you'll need for your trip to Sao Paulo may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Sao Paulo. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from St. Louis to Sao Paulo?

Best airlines flying from St. Louis to Sao Paulo

Compare and see reviews for airlines that fly from St. Louis to Sao Paulo with momondo
Airline
Rating
Free Cancellation
Price
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
DeltaPriceFrom $858Free CancellationRating
7.9
8,009 reviews
Search Delta flights
United AirlinesPriceFrom $938Free CancellationRating
7.4
9,066 reviews
Search United Airlines flights

Traveling to a place near Sao Paulo?

Book flights to Sao Paulo if you plan to visit one of these locations
Santos
Guarujá

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Sao Paulo?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from St. Louis to Sao Paulo. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from St. Louis to Sao Paulo with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for St. Louis to Sao Paulo flights to just show those with flexible booking policies.

How can momondo help me find flights from St. Louis to Sao Paulo?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Sao Paulo from St. Louis.

I’m not ready to book a flight from St. Louis to Sao Paulo right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of St. Louis to Sao Paulo flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Find better results for your trip to Brazil

Fly into one of these airports located in Sao Paulo

Airports listed have a maximum distance of 48.9 mi from Sao Paulo
Sao Paulo Congonhas Airport
Sao Paulo Guarulhos Intl Airport
Sao Paulo Viracopos Airport