STL - RIO

$1,003 Find Cheap Flights from St. Louis to Rio de Janeiro - Compare and Save

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Rio de Janeiro departing on 9/7. 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

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Everything you should know

Cheapest round-trip
$1,003
LATAM Airlines
Mon 9/7Mon 9/14
STL - GIG • 2 stops
Cheapest one-way
$1,971
Copa Airlines
Sat 9/5
STL - GIG • 2 stops
Top airlines
Cheapest • from $1,003 (round-trip)
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between St. Louis and Rio de Janeiro. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $813 (round-trip)
Shortest trip • 12h 12m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Rio de Janeiro!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from St. Louis to Rio de Janeiro (STL-RIO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Rio de Janeiro 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 Rio de Janeiro

Mon, Sep 7 - Mon, Sep 14
LATAM Airlines Logo
6:00 am - 4:30 pm
STL
-
GIG
32h 30m
2 stops
LATAM Airlines Logo
9:00 pm - 9:00 am
GIG
-
STL
14h 00m
1 stop
$1,003LATAM Airlines
Mon, Sep 7 - Mon, Sep 14
Delta Logo
12:52 pm - 10:15 am
STL
-
GIG
19h 23m
1 stop
Delta Logo
9:00 pm - 10:55 am
GIG
-
STL
15h 55m
1 stop
$1,003Delta
Mon, Sep 7 - Mon, Sep 14
LATAM Airlines Logo
6:00 am - 4:30 pm
STL
-
GIG
32h 30m
2 stops
LATAM Airlines Logo
11:10 am - 9:00 am
GIG
-
STL
23h 50m
2 stops
$1,004LATAM Airlines
Wed, Oct 7 - Mon, Oct 19
American Airlines Logo
1:20 pm - 8:20 am
STL
-
GIG
17h 00m
2 stops
American Airlines Logo
8:15 pm - 5:49 pm
GIG
-
STL
23h 34m
2 stops
$1,015American Airlines
Wed, Oct 7 - Mon, Oct 19
American Airlines Logo
11:31 am - 8:20 am
STL
-
GIG
18h 49m
2 stops
American Airlines Logo
8:15 pm - 5:49 pm
GIG
-
STL
23h 34m
2 stops
$1,015American Airlines
Wed, Oct 7 - Mon, Oct 19
American Airlines Logo
6:20 pm - 2:10 pm
STL
-
GIG
17h 50m
2 stops
American Airlines Logo
8:15 pm - 5:49 pm
GIG
-
STL
23h 34m
2 stops
$1,018American Airlines
Wed, Oct 7 - Mon, Oct 19
American Airlines Logo
11:31 am - 8:20 am
STL
-
GIG
18h 49m
2 stops
American Airlines Logo
8:15 pm - 5:49 pm
GIG
-
STL
23h 34m
2 stops
$1,042American Airlines
Thu, Sep 10 - Sun, Sep 20
GOL Logo
2:11 pm - 8:20 am
STL
-
GIG
16h 09m
1 stop
GOL Logo
10:10 pm - 1:21 pm
GIG
-
STL
17h 11m
1 stop
$1,063GOL
Thu, Sep 10 - Sun, Sep 20
United Airlines Logo
11:15 am - 8:15 am
STL
-
GIG
19h 00m
1 stop
United Airlines Logo
9:05 pm - 3:38 pm
GIG
-
STL
44h 33m
2 stops
$1,065United Airlines
Thu, Sep 10 - Sun, Sep 20
United Airlines Logo
8:00 am - 8:15 am
STL
-
GIG
22h 15m
2 stops
United Airlines Logo
9:05 pm - 11:57 am
GIG
-
STL
40h 52m
2 stops
$1,065United Airlines
Booking Insights

KAYAK's insights & trends for St. Louis to Rio de Janeiro flights

Get data-powered insights and trends into flights from St. Louis to Rio de Janeiro 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 Rio de Janeiro?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Rio de Janeiro, 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 Rio de Janeiro is May, where tickets cost $0 (return) on average. On the other hand, the most expensive months are December and September, where the average cost of round-trip tickets is $1,632 and $1,455 respectively.

Good to know

Low season

April

Cheapest flight

$1,003
Best time to beat the crowds with an average 38% drop in price.
Most popular time to fly with an average 31% increase in price.
Flight from St. Louis to Rio de Janeiro-Galeao Airport

When to book flights from St. Louis to Rio de Janeiro

Are your dates flexible? Find out the best times to travel from St. Louis to Rio de Janeiro based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Rio de Janeiro

  • What is the cheapest flight from St. Louis to Rio de Janeiro?

    In the last 5 days, the lowest price for a flight from St. Louis to Rio de Janeiro was $1,971 for a one-way ticket and $1,003 for a round-trip.

  • Do I need a passport to fly between St. Louis and Rio de Janeiro?

    Yes, you’ll need a passport to travel to Rio de Janeiro from St. Louis.

  • Which airports will I be using when flying from St. Louis to Rio de Janeiro?

    On your way to Rio de Janeiro, you’ll fly out from Lambert-St Louis. You’ll be landing in one of Rio de Janeiro’s 2 airports: Rio de Janeiro–Galeão Intl or Rio de Janeiro Santos Dumont.

  • Which aircraft models fly most regularly from St. Louis to Rio de Janeiro?

    We unfortunately don’t have that data for this specific route.

  • Which is the best airline for flights from St. Louis to Rio de Janeiro, Delta or LATAM Airlines?

    The two airlines most popular with KAYAK users for flights from St. Louis to Rio de Janeiro are Delta and LATAM Airlines. With an average price for the route of $1,389 and an overall rating of 7.8, Delta is the most popular choice. LATAM Airlines is also a great choice for the route, with an average price of $1,280 and an overall rating of 7.4.

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

    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 Rio de Janeiro.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Rio de Janeiro from St. Louis 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 Rio de Janeiro?

    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 to Rio de Janeiro with an airline and back to St. Louis with another airline.

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

    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 to Rio de Janeiro from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from St. Louis to Rio de Janeiro

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Rio de Janeiro. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Rio de Janeiro? 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.
7.8
DeltaOverall score based on 8483 reviews
8.1Boarding
8.5Crew
7.8Entertainment
7.8Comfort
7.2Food
Airline reviews

Flight was delayed multiple time and for more than 1 hr. My onward flight from BOS to MCI was also delayed. These delays have caused me so much inconvenience and Delta does nothing to ensure flights take off on time. No one knew why the inbound flight was delayed and what was the issue.

2.0 MediocrePreeti, Jul 2026
MCI - BOS
Read more Delta reviews

Flight was delayed multiple time and for more than 1 hr. My onward flight from BOS to MCI was also delayed. These delays have caused me so much inconvenience and Delta does nothing to ensure flights take off on time. No one knew why the inbound flight was delayed and what was the issue.

Our flight was delayed by over 4 hours due to a maintenance issue. They announced a new plane was on the way. We were given a $12 food voucher ( airport food is quite expensive You can’t even by a water and a small snack for 12:00. 4 hours later we boarded and landed in Atlanta at 10:20 ish pm. Of course we missed our connection and we were given a hotel voucher and another food voucher ! We didn’t make it home until 11:00 the next day ! Unacceptable

From checking to boarding, it was a seamless experience. The service agents were so helpful. The flight crew was so pleasant.

Delta has too many delays now days. It is 1:06 am now. I was supposed to land in Norfolk at 10:30 pm. I got re-booked through Detroit and I’m still in Detroit. I hope to be landed in Norfolk by 3am. I’ve been in airports for 12 hours as of right now. There is a weather delay now but most delays lately have been maintenance.

This is the first time I've been disappointed with Delta. I was called by Delta to see if I would volunteer to change flights since my original flight home was overbooked. I accepted. The modified booking only provided me a 35 minute layover - when you subtract the fact that boarding closes for a flight 15 minutes early, that gave me 20 minutes to run for one end of the airport to the other. I barely made it. On the 2.5 hour flight to Tampa, the crew repeatedly let us know over the intercom that they cannot serve drinks or snacks due to safety/turbulence. I would have accepted this reason if they did not CONTINUALLY SERVE DRINKS AND COOKED FOOD to First class. If safety is the excuse then the entire plane should be strapped in for safety. On top of this the air conditioning vents were not working correctly and the plane was uncomfortably warm. I love Delta and am a loyal Delta traveler, and I have never had an experience like this. I don't know if there's a disconnect between availability among third-party sites like KAYAK and the airlines or what, but when overbooking causes issues like this for travelers it should be reviewed and changes to the booking process should be made. I blame BOTH KAYAK and Delta for this terrible experience.

Great flight with Delta! Boarding was quick and easy, the amenities were solid, and the plane was in great shape. The flight attendants had a fun, lively energy while staying professional. All in all, a smooth trip — even managed to catch up on some rest. Thanks, Delta!

My flight was canceled after being rescheduled for four days canceling my trip. Kayak and everyone affiliated with it I.e the airlines, and just fly have been excruciating to deal with. My trip to visit family had to be canceled as there was no way to make it. I am furious at all of you.

They delayed our flight because of bad weather in NY which was completely understandable. Then they cancelled our flight and a later flight that evening. The earliest we could fly was the next morning. We ended up buying last minute tickets on another airline and made it home slightly delayed but safely that evening. Delta kept saying it was weather related but if that was the case how did we make it back on another airline? The weather in NY was cloudy but not bad.

The plane smelled like a sewer. Multiple passengers complained. It’s a safety and quality issue to clean these planes.

We were delayed 2 hours leaving STL. I had 20 mins from when we landed in SLC terminal A to make it to SLC terminal B. I had to actually run! thankfully I made my flight but 3/4 legs were delayed to some capacity.

Apart of Sky miles delta. And they go everywhere in Brazil

There was a mechanical issue with the plane that they had to work on before we could take off. That's fine, by all means, PLEASE make sure the mechanics are functioning properly. What was a problem was the fact that we sat on the tarmac for 4.5 hours without moving, without letting us off the plane, and without climate control and air running through the plane. There was no explanation as to what was going on; they just kept promising that it would be "15 minutes, then we are on our way." At one point, they even switched the entire crew out and told everyone we just needed to wait for new employees to show up. Then, as the 4 hours were not moving, an hour before the full refund, they made a big show about "the flight starting and the doors are locked, so you have to sit down." We didn't move for another 40 minutes; they were just trying to skirt around legalities that entitled us to restitution. When the flight finally was underway, the plane was gigantic but cramped in design, my entertainment screen kept freezing and glitching, and subtitles didn't work, and the crew was passive-aggressive. Terrible flight.

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

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.

I never got this flight. You sent me to Chile!!! And from Chile I got the other flight to São Paulo... I've arrived 7h latter than I was supposed to arrive because of Delta delays.

Basic experience, we were delayed causing less time to enjoy our destination and on the way back, we boarded when the flight should have been taking off.

Very slow boarding, 1 hour late - uncomfortable chairs and crew barely speaking english even at the airport!

The flight itinerary was changed 3 times, I explain the problem on the previous leg.

4 hours delay, awful food and missed all my connections because of the delay to be rebooks for a flight 10 hrs later back home and never actually make it to my final destination

the flight from Boston to Curitiba was on time actually 30 minutes earlier. latam was not able to unload the luggage for custom checkup in Sao Paulo ii took two and half hours . i missed the flight to Curitiba spend the night in hotel and then flying in the morning to Curitiba

My luggage was not sent with us. Not sure if this is Envoy Air responsibility but that was a very BAD experience

American delayed the flight for a crew rest period. The delay occurred late in the evening - the earliest i can find is 10:20 pm. With a 6 am flight anyone on the flight would have already have been asleep (unless you are insane, a vampire or on drugs) and at least for me i was already on the way to the airport at 445 am the next morning when i discovered they delayed the flight until 9 am. Given the incoming flight was in the air at 6 pm the evening before this should have been figured out a lot more timely that was there only crew to use. Just frustrating given there is no consideration for customer experience anymore in flying.

For an international flight the seats were smaller than most flight I have been on in economy. I don’t know the size of the seats or perhaps it was the size of the seat dividers that made the seats feel smaller and little amount of space to even turn your body if you needed to

Good crew and flight was on time. It’s a small plane with limited overhead luggage space. They said the overhead space was full and I had to check my bag. There was still space when I got on. Waiting for my checked luggage added 30 minutes to my trip. Not the end of the world but also not great.

Trip delayed for 2 hours because of rain. We boarded and have to get down the flight and reboard again.

No enough space plus only allowing one laggage instead of two like other airlines.

Qatar airways ,boarding arrangements at Hamid international airport could been better

Flight was delayed 17 hours due to aircraft issues. American did provide hotel, transportation and meals, 3 hours past boarding time, but it took us another hour to get the vouchers.

Food was terrible, all served at once, poor quality . Wine and bread offered only once.

Two flight changes before the scheduled flight. On the day of the flight, the flight was delayed, which caused the connecting flight to be missed. Then, I was directed to another airport (CUN) and traveled to Tulum. American gave a $12 voucher for lunch. The least expensive item on the menu at a Mexican restaurant was $9.99. Driving to Tulum was a bad auto crash, and traffic was delayed two-plus hours. The bottom line is that we should have been at the hotel at noon, but it ended up at 11:30 PM.

Everything you need to know for your flight from St. Louis to Rio de Janeiro

Information on your arrival and departure airports