$564 Find Cheap Flights from St. Louis to Brazil

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Brazil departing on 11/13. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Brazil

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from St. Louis to Brazil

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Rio de Janeiro
Rio de Janeiro1 stop$769
Fortaleza
Fortaleza2 stops$1,018
Porto Alegre
Porto Alegre2 stops$948
Rio de Janeiro
Rio de Janeiro1 stop$769
Fortaleza
Fortaleza2 stops$1,018
Porto Alegre
Porto Alegre2 stops$948

Book Cheap St. Louis to Brazil Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Brazil that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Brazil

Mon, Mar 30 - Wed, Apr 1
GOL Logo
5:03 pm - 8:50 amSTL-CGH
37h 47m2 stops
GOL Logo
4:10 pm - 11:37 pmCGH-STL
33h 27m2 stops
$768GOL
Find Deal
Tue, Mar 3 - Wed, Mar 18
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
Mon, Mar 2 - Thu, Mar 19
LATAM Airlines Logo
4:00 pm - 8:20 amSTL-GIG
13h 20m1 stop
LATAM Airlines Logo
9:30 pm - 10:50 amGIG-STL
15h 20m1 stop
$1,033LATAM Airlines
Find Deal
Wed, Mar 4 - Mon, Mar 16
LATAM Airlines Logo
6:00 am - 8:00 amSTL-GIG
23h 00m2 stops
LATAM Airlines Logo
9:30 pm - 9:04 amGIG-STL
13h 34m1 stop
$1,037LATAM Airlines
Find Deal
Mon, Mar 2 - Mon, Mar 16
United Airlines Logo
7:41 am - 9:35 amSTL-GIG
22h 54m2 stops
United Airlines Logo
8:55 pm - 2:31 pmGIG-STL
19h 36m2 stops
$1,045United Airlines
Find Deal
Tue, Feb 3 - Sat, Feb 14
Delta Logo
7:10 am - 8:20 amSTL-GIG
22h 10m1 stop
Delta Logo
9:30 pm - 9:04 amGIG-STL
14h 34m1 stop
$1,079Delta
Find Deal
Tue, Feb 10 - Mon, Feb 23
American Airlines Logo
10:00 am - 8:50 amSTL-GRU
19h 50m1 stop
American Airlines Logo
12:15 am - 5:19 pmGRU-STL
20h 04m1 stop
$1,080American Airlines
Find Deal
Tue, Feb 10 - Mon, Feb 23
American Airlines Logo
9:25 am - 6:20 amSTL-GRU
17h 55m2 stops
American Airlines Logo
12:15 am - 10:27 amGRU-STL
13h 12m1 stop
$1,085American Airlines
Find Deal
Tue, Jan 13 - Wed, Jan 21
Delta Logo
9:45 am - 9:55 amSTL-GRU
21h 10m1 stop
Delta Logo
4:30 pm - 8:53 amGRU-STL
19h 23m2 stops
$1,090Delta
Find Deal
Tue, Jan 13 - Mon, Jan 26
United Airlines Logo
11:20 am - 7:50 amSTL-GRU
17h 30m2 stops
United Airlines Logo
10:15 pm - 12:29 pmGRU-STL
17h 14m2 stops
$1,095United Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for St. Louis to Brazil flights

Get data-powered insights and trends into flights from St. Louis to Brazil to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from St. Louis to Brazil?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Brazil, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Brazil is April, when tickets cost $698 (return) on average. On the other hand, the most expensive months are January and June, when the average cost of round-trip tickets is $1,429 and $1,378 respectively.

What’s the cheapest day of the week to fly from St. Louis to Brazil?

The average price of all round-trip flights from St. Louis to Brazil clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Brazil on a Monday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from St. Louis to Brazil. For your return ticket, we recommend flying on a Tuesday and avoiding Sundays for the best deals.

Good to know

Low seasonJuly
Cheapest flight$374
Best time to beat the crowds with an average 36% drop in price.
Most popular time to fly with an average 16% increase in price.
Flight from St. Louis to Rio de Janeiro Santos Dumont

FAQs - booking Brazil flights

  • How does KAYAK find such low prices on flights from St. Louis to Brazil?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Brazil.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Brazil?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from St. Louis to Brazil is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Brazil?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from St. Louis to Brazil with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Brazil?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from St. Louis to Brazil up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Brazil?

    The cheapest time of day to fly to Brazil is generally in the evening, when round-trip flights cost $1,059 on average. Morning departures are around 3% more expensive than evening flights, on average. The most expensive time of day to fly to Brazil is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $1,179.

Reviews of the top 5 airlines serving from St. Louis to Brazil

 
Need help choosing which airline to fly with from St. Louis to Brazil? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 7993 reviews
7.9Comfort
7.9Entertainment
7.3Food
8.5Crew
8.2Boarding
Airline reviews

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

8.0 ExcellentJulie, Oct 2025LAX - SFO
Read more Delta reviews

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

The aircraft interior is old and tired on this aircraft. The entertainment system never worked despite the crews attempt to reset the system.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Old plane and old configuration/seats but still comfortable for a morning flight

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

Flight was crowded and the woman sitting on my left was large & kept crouching in to my space. You need bigger seats or smaller passengers to fit into the seats you DO have! Snack were OK. Would appreciate if airlines had more savory rather than sweet snacks, thank you!

Latam may be the worst airline in the world, far worse than even the lowest of low cost airlines in the USA. I wasted hours trying to PAY THEM TO CHECK A BAG! Then they misled me at the terminal, sent me through the wrong security line, the list goes on and on... Just absolutely terrible in every way. Avoid at all costs.

Poor, the airline was not able to help me move flights.

The way the Pilot made all announcements, specially the way he congratulated the entire crew as the best team ever, making a comment that due to them they were able to shorter the delay to the destination. Amazing flight .

Just to drop my already labeled bag it took 50 minutes inline. Completely disappointed with Latam operation at GRU

I’m entitled to a refund per LATAM due to the mid flight itinerary change and being stuck in São Paulo for 24 hours and needing to get a hotel. The airline was dismissive and of no help.

The flight was late. Please do not delay next time.

I couldn't travel, now I can't get a refund and to change the date I have to pay an absurd fine.

Boarding was confusing with a delayed flight because there was no English translation

My biggest complaint is the comfort. I am not tall and there was no legroom. It was very uncomfortable. During my transfer in Sao Paola, the flight was slightly delayed so boarding was confusing because there were no instructions in English.

Bought a ticket that included a bag and they still charged me to check it in, latam is the worst airline.

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

The person I bought the ticket for didn’t make the flight.

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Another delayed flight. When the delays exceed the duration of the flight, it’s a problem.

Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.

After boarding the plane in Chicago, the passengers were told that there was a technical problem with the plane. Passengers remained on the plane as they tried to fix the problem. After what was probably an hour passengers were told that there was a need to change planes as the problem was not solved. Passengers disembarked and boarded another plane. After taxing to the runway and waiting for takeoff, passengers were told that owing to the thunderstorm the flight was unable to take off but would try and reroute. After some time passengers were told there wasn't enough fuel for the new route and the plane had to return to the gate for additional fuel. after another log delay the flight got underway. On the plane there was food, drinks, ice or entertainment. We were a glass of water, which appeared rationed. Flight arrived about 5 hours late. The pilot was fantastic and communicated with the passengers throughout the ordeal.

Same as last comment. Food sucks. Quality. Not surprising most people have no clue about nourishment Clearly

Not the fault of United—weather, reroute around weather, time sitting on tarmac, arrived couple hours late, too late for train into city necessitating a much pricier cab but weather…can’t be helped.

Friendly and professional flight crew. Aside from departure delay after boarding, easy flight and smooth landing.

Great smooth flight. Had a seating change, but that was an improvement. Thanks United Airways Crew.

Wish some foods provided rather than just biscuit/cookie for flight more than 2 hours

Wish a flight with more than 2 hours with some snack rather than just cookie/biscuit.

The flight attendant, a black woman with curly hair who sat near Row 21, was wonderful and kind.

It was good..clean, comfy seat. Friendly warm welcoming crew. Was able to check my cabin luggage at the gate which I was able to pickup in a decent time from baggage claim. The app gave all updates from delays to baggage claim info. Overall smooth flight.

Flight was delayed leaving Dallas. Arrived about 2 hours later than scheduled.

Flight delayed and missed connection. Rescheduled flight cancelled after 6 hrs wait. Rerouted thru ORD, flight cancelled, overnight stay in ORD. Still in the air on new flight!

We are too tired and frustrated to comment politely at this point

Terrible. Our luggage was delayed and couldn’t be delivered for several days. We got bad information from the airline agents at baggage claim. We had to pick up our car so we wouldn’t be charged for an extra day. We got lost in the maze of airport parking. The baggage claim agents didn’t offer us any compensation for our extra time and expense. We are tired, hungry and very frustrated.

The flight was flawless and we even arrived between 20 and 25 minutes early!

The only thing to like was that we eventually got to our destination

Allow me to book extra bag check in as free though I packed in 1 luggage but that was 7 LBS overweight so make another bag to free check in.

I would like to get my money back. I flight was 4 hours late on the way to detroit, And same on my way back to Brussels they cancelled my flight and give me an other ticket and i had to wait 5 hours.

All attendents were very efficient, pleasant and happy. Everything went smoothly. The seats could have been wider. There could have been more free food instead of just one small bar.

My seat was one of those that couldn't recline, but the problem was that it was abnormally upright, so the headrest actually made the seat concave, which was uncomfortable and hard on my lower back. I had to ball my jacket up and use it as lumbar support. goodness I had it with me.

Boarding was so so after zone 3 was called all other zones went in

I liked a lot , the flight attendant so nice ,the seat very comfortable I enjoyed the flight , I will do it again with Air Canada,

Plane left an hour late, I missed my connection and my bow case was never even loaded on the plane in VA. I deal with this type of nonsense everytime I fly air canada.

For goodness sake, board from the back of the plane to the front and assign overhead space. It would fix everything. Seriously.

Elderly female flight attendant was not customer friendly. There were only about 12 people on a regional jet that had about 60 seats. There were 8 exit row seats and none of them were taken. We attempted to sit in those seats and the flight attendant gave the standard " you didn't pay for those" so she would not allow us to move. What harm would that have caused ? They assigned seats to 5 of the 12 people in 2 rows, row 20 and 21. A simple friendly customer experience gesture of allowing us to sit in exit rows would have gone a long way in me having a very favorable impression on Air Canada. After that I have very poor impression of Air Canada and will not fly with them when I can avoid it.

It was a smooth flight both in the sky and landing!

Everything you need to know for your flight from St. Louis to Brazil

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.