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Sao Paulo

$757+ Cheap flights from St. Louis (STL) to Sao Paulo, Brazil (SAO)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/17. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SAO
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
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Cheap flight deals from St. Louis to Sao Paulo

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Sao Paulo (SAO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 18, 2025.

Round-trip from

$757
(Air Canada)

Popular in

June

Cheapest in

April

Average price

$1,345
From Lambert-St Louis to Sao Paulo (SAO)
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Highest demand for flights based on searches. 3% potential increase in price ($37 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($29 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from St. Louis to Sao Paulo

Cheapest flights from St. Louis to Sao Paulo
Explore the most affordable flight options available from St. Louis to Sao Paulo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2025.

This Air Canada deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/179:15 amSTL - GRU
2 stops22h 25mAir Canada
Wed 9/249:00 pmGRU - STL
1 stop24h 57mAir Canada
Deal found 8/17$757
This Air Canada deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/124:05 pmSTL - GRU
2 stops37h 55mAir Canada
Wed 11/199:45 pmGRU - STL
2 stops20h 44mAir Canada
Deal found 8/17$763
This Kiwi.com deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/197:45 pmSTL - VCP
2 stops33h 50mMultiple Airlines
Tue 11/2510:00 amVCP - STL
1 stop15h 39mMultiple Airlines
Deal found 8/17$1,028
This Air Canada deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/244:05 pmSTL - GRU
2 stops37h 55mAir Canada
Wed 12/319:45 pmGRU - STL
2 stops44h 44mAir Canada
Deal found 8/18$1,038
This American Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/124:21 pmSTL - GRU
1 stop12h 44mAmerican Airlines
Tue 11/1812:15 amGRU - STL
1 stop18h 35mAmerican Airlines
Deal found 8/17$1,085
This Air Canada deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/179:15 amSTL - GRU
2 stops22h 25mMultiple Airlines
Tue 9/231:45 amGRU - STL
2 stops19h 53mMultiple Airlines
Deal found 8/17$1,103
This FlightHub deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/245:17 pmSTL - GRU
1 stop13h 18mLATAM Airlines
Wed 12/3110:40 amGRU - STL
1 stop35h 02mLATAM Airlines
Deal found 8/18$1,112
This LATAM Airlines deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/79:00 amSTL - GRU
2 stops18h 15mLATAM Airlines
Sun 1/1111:55 pmGRU - STL
2 stops26h 45mLATAM Airlines
Deal found 8/15$1,121
This Air Canada deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/194:05 pmSTL - GRU
2 stops37h 55mMultiple Airlines
Tue 11/255:25 pmGRU - STL
2 stops49h 04mMultiple Airlines
Deal found 8/17$1,122
This GOL deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure GOL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/154:35 pmSTL - VCP
2 stops39h 10mGOL
Sat 1/105:55 pmVCP - STL
2 stops30h 53mGOL
Deal found 8/17$1,203
This GOL deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure GOL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/154:35 pmSTL - CGH
2 stops26h 50mGOL
Sat 1/107:20 pmCGH - STL
2 stops29h 28mGOL
Deal found 8/17$1,209
This FlightHub deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/194:21 pmSTL - CGH
2 stops17h 09mGOL
Tue 11/256:30 amCGH - STL
2 stops19h 02mGOL
Deal found 8/17$1,236

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated August 18, 2025.
Use the filters below to find and compare flights from St. Louis to Sao Paulo that are best for you.

Fly from

St. Louis

Fly to

Sao Paulo

Route

Depart

Return

Price

St. LouisSao Paulo

STL - GRU

STLGRU

Lambert-St Louis

Wed 9/17

9:15 am-9:15 am

1 stop22h 00m

Sao Paulo Guarulhos Intl

Wed 9/24

9:00 pm-7:57 pm

1 stop24h 57m

$757

St. LouisSao Paulo

STL - GRU

STLGRU

Lambert-St Louis

Wed 11/12

4:05 pm-9:00 am

2 stops37h 55m

Sao Paulo Guarulhos Intl

Wed 11/19

9:45 pm-3:29 pm

2 stops20h 44m

$763

St. LouisSao Paulo

STL - GRU

STLGRU

Lambert-St Louis

Sat 2/14

4:05 pm-9:00 am

2 stops37h 55m

Sao Paulo Guarulhos Intl

Sat 2/21

9:45 pm-3:29 pm

2 stops44h 44m

$763

St. LouisSao Paulo

STL - GRU

STLGRU

Lambert-St Louis

Wed 11/19

4:05 pm-9:00 am

1 stop13h 55m

Sao Paulo Guarulhos Intl

Tue 11/25

9:30 pm-3:29 pm

1 stop20h 59m

$838

St. LouisSao Paulo

STL - VCP

STLVCP

Lambert-St Louis

Wed 11/19

7:45 pm-8:35 am

2 stops33h 50m

Sao Paulo Viracopos

Tue 11/25

10:00 am-10:39 pm

1 stop15h 39m

$1,028

St. LouisSao Paulo

STL - VCP

STLVCP

Lambert-St Louis

Mon 12/15

4:35 pm-10:45 am

2 stops39h 10m

Sao Paulo Viracopos

Sat 1/10

5:55 pm-9:48 pm

2 stops30h 53m

$1,203

St. LouisSao Paulo

STL - CGH

STLCGH

Lambert-St Louis

Mon 12/15

4:35 pm-10:25 pm

2 stops26h 50m

Sao Paulo Congonhas

Sat 1/10

7:20 pm-9:48 pm

2 stops29h 28m

$1,209

St. LouisSao Paulo

STL - CGH

STLCGH

Lambert-St Louis

Wed 11/19

4:21 pm-12:30 pm

2 stops17h 09m

Sao Paulo Congonhas

Tue 11/25

6:30 am-10:32 pm

2 stops19h 02m

$1,236

St. LouisSao Paulo

STL - VCP

STLVCP

Lambert-St Louis

Wed 11/19

4:21 pm-9:10 am

2 stops37h 49m

Sao Paulo Viracopos

Tue 11/25

5:55 pm-10:32 pm

2 stops31h 37m

$1,249

St. LouisSao Paulo

STL - VCP

STLVCP

Lambert-St Louis

Wed 12/24

5:21 am-5:25 pm

2 stops33h 04m

Sao Paulo Viracopos

Wed 12/31

6:05 pm-9:54 am

2 stops18h 49m

$1,380

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/16

Showing 1-10 of 19 results
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Best time to book a flight from St. Louis to Sao Paulo

Have a flexible travel schedule? Discover the best time to fly to Sao Paulo from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Sao Paulo

What is the cheapest month to book a flight from St. Louis to Sao Paulo?

Currently, September is the cheapest month in which you can book a flight from St. Louis to Sao Paulo (average of $672). Flying from St. Louis to Sao Paulo in December is currently the most expensive (average of $1,209). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from STL to SAO?

Find hourly flight availability from St. Louis to Sao Paulo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 18, 2025.

When flying from St. Louis to Sao Paulo, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 11% versus a flight at noon.

Reviews of airlines servicing Sao Paulo

Get insights into the airlines that provide service to Sao Paulo. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sao Paulo. Reviews last updated August 18, 2025.
Read through reviews of airlines operating flights from St. Louis to Sao Paulo, such as Delta and LATAM Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,981 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
LATAM Airlines
7.5
Good
1,844 reviews
Delta
8.0
Very good
7,981 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Sao Paulo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from St. Louis to Sao Paulo?

    Lambert-St Louis (STL) is the airport you will fly out of if you book a flight from St. Louis to Sao Paulo. You should not have trouble finding flights to Sao Paulo from Lambert-St Louis; the airport handles an average of 0 outbound flights to Sao Paulo per day. You should also have plenty of airline options to choose from since 5 airlines have flights from the St. Louis airport to Sao Paulo. It is only a 12.7 mi journey to Lambert-St Louis (STL) from St. Louis’s city center.

  • How long is the flight from St. Louis to Sao Paulo?

    There are many flights that can get you from St. Louis to Sao Paulo in 22h. Fly via Air Canada or GOL to get the fastest option. The distance from St. Louis to Sao Paulo is about 5146 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from St. Louis to Sao Paulo round-trip?

    Cheapflights users have booked flights from St. Louis to Sao Paulo round-trip from $756. Other airlines that can offer you cheap pricing are Air Canada, from $758, and American Airlines, from $761. LATAM Airlines is priced at 28% lower than the current average price of a flight leaving 3 months from now.

  • What are the most popular routes from St. Louis to Sao Paulo?

    While some choose either Lambert-St Louis - Sao Paulo Viracopos or Lambert-St Louis - Sao Paulo Congonhas, Lambert-St Louis - Sao Paulo Guarulhos Intl is the most popular route from St. Louis to Sao Paulo.

  • Can I find deals for flights from St. Louis to Sao Paulo that include hotel bookings?

    Yes. In addition to deals on St. Louis to Sao Paulo flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Sao Paulo?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Sao Paulo.

  • Can I find deals for business class flights from St. Louis to Sao Paulo?

    Yes. Cheapflights offers flight deals from St. Louis to Sao Paulo by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from St. Louis to Sao Paulo?

    Currently, September is the cheapest month in which you can book a flight from St. Louis to Sao Paulo (average of $672). Flying from St. Louis to Sao Paulo in December is currently the most expensive (average of $1,209). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for St. Louis to Sao Paulo

See prices for flight routes from nearby airports that may be better suited for you.
Kansas City to Guarulhos Intl flights
St. Louis to Guarulhos Intl flights

Top 5 airlines flying from St. Louis to Sao Paulo

Discover the top 5 airlines that operate flights from St. Louis to Sao Paulo. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
LATAM AirlinesCheapest$756Average$1,163FlexibilityNo cancel feeOn-time81%
Air CanadaCheapest$758Average$767FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$761Average$1,037FlexibilityNo cancel feeOn-time71%
DeltaCheapest$858Average$1,128FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$938Average$1,286FlexibilityNo cancel feeOn-time69%

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