Cheap flights from St. Louis to Sao Paulo from $736
This is the cheapest round-trip 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 8/16. 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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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 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.
When to book flights from St. Louis to Sao Paulo
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
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 37m, 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?
The number of operators available for flights from Lambert-St Louis Airport to Sao Paulo is 5 as of June 2025.
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?
Based on momondo bookings for flights between St. Louis and Sao Paulo, the leading airline is Delta, making up 58% of the total bookings. Other popular airlines include LATAM Airlines with 42%.
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 | ||
|---|---|---|---|---|---|
| PriceFrom $569 | Free Cancellation | Rating 8.0 7,946 reviews | |||
| PriceFrom $756 | Free Cancellation | Rating 7.5 1,785 reviews | |||
| PriceFrom $758 | Free Cancellation | Rating 7.1 9,537 reviews | |||
| PriceFrom $761 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $938 | Free Cancellation | Rating 7.4 8,790 reviews |
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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.