$363 Cheap Flights from St. Louis (STL) to São Paulo (CGH)

View $363 flight on Wed, Oct 22, 2025Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to São Paulo (CGH-Congonhas)

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Cheap Flights from St. Louis to São Paulo (STL-CGH)

Prices were available within the past 7 days and start at $363 for one-way flights and $737 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, Oct 22 - Thu, Nov 27
STL
St. Louis
CGH
Sao Paulo
$737 Roundtrip, found 1 day ago
$737
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Oct 22 from St. Louis to Sao Paulo, returning Thu, Nov 27, priced at $737 found 1 day ago
American Airlines
Wed, Oct 22 - Thu, Nov 27
STL
St. Louis
CGH
Sao Paulo
$778 Roundtrip, found 1 day ago
$778
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Oct 22 from St. Louis to Sao Paulo, returning Thu, Nov 27, priced at $778 found 1 day ago
American Airlines
Wed, Oct 22 - Thu, Nov 27
STL
St. Louis
CGH
Sao Paulo
$878 Roundtrip, found 1 day ago
$878
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Oct 22 from St. Louis to Sao Paulo, returning Thu, Nov 27, priced at $878 found 1 day ago
American Airlines
Mon, Oct 13 - Thu, Oct 16
STL
St. Louis
CGH
Sao Paulo
$972 Roundtrip, found 3 days ago
$972
Roundtrip
found 3 days ago
Select American Airlines flight, departing Mon, Oct 13 from St. Louis to Sao Paulo, returning Thu, Oct 16, priced at $972 found 3 days ago
American Airlines
Wed, Oct 22 - Thu, Nov 27
STL
St. Louis
CGH
Sao Paulo
$973 Roundtrip, found 1 day ago
$973
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Oct 22 from St. Louis to Sao Paulo, returning Thu, Nov 27, priced at $973 found 1 day ago
American Airlines
Wed, Oct 22 - Thu, Nov 27
STL
St. Louis
CGH
Sao Paulo
$994 Roundtrip, found 1 day ago
$994
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Oct 22 from St. Louis to Sao Paulo, returning Thu, Nov 27, priced at $994 found 1 day ago
GOL Linhas Aereas S.A.
Tue, Nov 4 - Mon, Nov 10
STL
St. Louis
CGH
Sao Paulo
$1,002 Roundtrip, found 4 days ago
$1,002
Roundtrip
found 4 days ago
Select GOL Linhas Aereas S.A. flight, departing Tue, Nov 4 from St. Louis to Sao Paulo, returning Mon, Nov 10, priced at $1,002 found 4 days ago
American Airlines
Tue, Oct 21 - Wed, Nov 26
STL
St. Louis
CGH
Sao Paulo
$1,013 Roundtrip, found 1 day ago
$1,013
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Oct 21 from St. Louis to Sao Paulo, returning Wed, Nov 26, priced at $1,013 found 1 day ago
GOL Linhas Aereas S.A.
Tue, Nov 4 - Fri, Nov 14
STL
St. Louis
CGH
Sao Paulo
$1,039 Roundtrip, found 4 days ago
$1,039
Roundtrip
found 4 days ago
Select GOL Linhas Aereas S.A. flight, departing Tue, Nov 4 from St. Louis to Sao Paulo, returning Fri, Nov 14, priced at $1,039 found 4 days ago
United
Sun, Oct 12 - Sat, Oct 18
STL
St. Louis
CGH
Sao Paulo
$1,316 Roundtrip, found 3 days ago
$1,316
Roundtrip
found 3 days ago
Select United flight, departing Sun, Oct 12 from St. Louis to Sao Paulo, returning Sat, Oct 18, priced at $1,316 found 3 days ago

Alternative airports near São Paulo

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Guarulhos - Governor Andre Franco Montoro Intl. GRU. Cheapest option available. Average driving time to city center is 22 minutes. Flights from $1,491
GRU
Guarulhos - Governor Andre Franco Montoro Intl.
Cheapest
Average driving time to city center22 min
Flights from $1,491
Flights from St. Louis (STL) to São Paulo (CGH)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Congonhas
Roundtrip price
$737
Distance
5153 mi

St. Louis to São Paulo Flights

The cheapest times to fly from St. Louis to São Paulo

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from St. Louis to São Paulo are during the month of October. You can find some of the cheapest flights from St. Louis to São Paulo with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Louis to São Paulo

Sunday is one of the best days to book for cheap flights from St. Louis to São Paulo: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from St. Louis to São Paulo

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from St. Louis to São Paulo in 2025. You can also book with separate airlines for your outbound and return journeys, from $363 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap St. Louis to São Paulo flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your St. Louis to São Paulo airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Congonhas Airport (CGH) cost?
Discover the latest flight deals from STL to CGH by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from STL to CGH?
The cheapest flights from STL to CGH are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from STL to CGH?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from STL to CGH. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Congonhas Airport (CGH)?
Direct flights from Lambert-St. Louis Intl. Airport (STL) to Congonhas Airport (CGH) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from STL to CGH?
Usually you'll find the widest variety of flight choices on a Friday. Tuesdays are often the quietest.* However, this can vary depending on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to Congonhas Airport (CGH)?
To avoid potential delays on the Lambert-St. Louis Intl. Airport (STL) to Congonhas Airport (CGH) route, aim to travel before 3 PM. Departures after this hour have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to Congonhas Airport (CGH) last-minute?
Booking your ticket from STL to CGH shortly before your getaway is typically more expensive. But if you're flexible with your travel times and dates, you could snag a cheap last-minute fare.
Is it cheaper to book a STL to CGH flight and hotel package?
Compared with arranging flights and hotels separately, booking a STL to CGH flight and hotel package with Expedia could result in significant savings. What's more, managing everything in one place will take the hassle out of planning your trip. Simply pick your flights and choose from our wide range of hotels, then tailor your trip with other add-ons like tours and car rentals.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Congonhas Airport (CGH)?
Usually, it's possible to reschedule or cancel your STL to CGH flight. However, for bookings made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more information on our Customer Service portal.

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*Available to One Key members.