HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Rio de Janeiro

$415+ Cheap flights from St. Louis (STL) to Rio de Janeiro, Brazil (RIO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/3. Fares are subject to change and may not be available on all flights or dates of travel.
STL — RIO
ago. 4 — ago. 111
lun. 8/4
lun. 8/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from St. Louis to Rio de Janeiro with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from St. Louis to Rio de Janeiro

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Rio de Janeiro (RIO). 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 julio 30, 2025.

Round-trip from

$899
(Air Canada)

One-way from

$415
(Copa Airlines)

Popular in

December

Cheapest in

May

Average price

$1,347
From Lambert-St Louis to Rio de Janeiro (RIO)
Search Deals
One-way flight from Lambert-St Louis to Rio de Janeiro (RIO)
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($108 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($60 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

Find flight deals from St. Louis to Rio de Janeiro

Cheapest flights from St. Louis to Rio de Janeiro
Explore the most affordable flight options available from St. Louis to Rio de Janeiro. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 30, 2025.

This Air Canada deal was found by Cheapflights users on 7/30. 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.
dom. 9/149:15 amSTL - SDU
2 stops27h 05mAir Canada
mar. 9/2311:25 amSDU - STL
2 stops29h 53mAir Canada
Deal found 7/30$899
This Air Canada deal was found by Cheapflights users on 7/29. 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.
dom. 9/149:15 amSTL - GIG
2 stops27h 50mAir Canada
mar. 9/232:45 pmGIG - STL
2 stops26h 33mAir Canada
Deal found 7/29$969
This Mytrip deal was found by Cheapflights users on 7/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/124:05 pmSTL - GIG
2 stops30h 20mMultiple Airlines
lun. 9/159:40 pmGIG - STL
2 stops47h 58mMultiple Airlines
Deal found 7/28$1,096
This United Airlines deal was found by Cheapflights users on 7/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/146:15 amSTL - GIG
1 stop24h 00mUnited Airlines
mar. 9/239:05 pmGIG - STL
1 stop23h 45mUnited Airlines
Deal found 7/28$1,119
This American Airlines deal was found by Cheapflights users on 7/29. 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.
vie. 8/228:50 amSTL - GIG
2 stops21h 30mAmerican Airlines
vie. 9/511:00 pmGIG - STL
2 stops21h 41mAmerican Airlines
Deal found 7/29$1,202
This Travelocity deal was found by Cheapflights users on 7/28. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/124:05 pmSTL - SDU
2 stops20h 15mMultiple Airlines
lun. 9/153:05 pmSDU - STL
2 stops34h 54mMultiple Airlines
Deal found 7/28$1,545
This Delta deal was found by Cheapflights users on 7/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/1711:51 amSTL - GIG
2 stops20h 44mDelta
jue. 12/259:30 pmGIG - STL
1 stop21h 41mDelta
Deal found 7/28$2,138
This KAYAK deal was found by Cheapflights users on 7/28. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/171:30 pmSTL - SDU
2 stops20h 45mLATAM Airlines
sáb. 12/278:05 pmSDU - STL
2 stops25h 19mLATAM Airlines
Deal found 7/28$2,604
This business-class.com deal was found by Cheapflights users on 7/28. 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 business-class.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/196:00 amSTL - GIG
2 stops21h 25mLATAM Airlines
sáb. 12/279:30 pmGIG - STL
1 stop14h 34mLATAM Airlines
Deal found 7/28$3,535
This Avianca deal was found by Cheapflights users on 7/28. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/1710:00 amSTL - GIG
2 stops35h 40mAvianca
mié. 12/241:45 amGIG - STL
2 stops17h 42mAvianca
Deal found 7/28$4,574
This Delta deal was found by Cheapflights users on 7/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/205:17 pmSTL - SDU
2 stops16h 58mDelta
dom. 12/288:05 pmSDU - STL
2 stops15h 59mDelta
Deal found 7/28$5,007

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Rio de Janeiro 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 julio 30, 2025.
Use the filters below to find and compare flights from St. Louis to Rio de Janeiro that are best for you.

Fly from

St. Louis

Fly to

Rio de Janeiro

Route

Depart

Return

Price

St. LouisRio de Janeiro

STL - SDU

STLSDU

Lambert-St Louis

dom. 9/14

9:15 am-2:20 pm

2 stops27h 05m

Rio de Janeiro Santos Dumont

mar. 9/23

11:25 am-3:18 pm

2 stops29h 53m

$899

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

dom. 9/14

9:15 am-3:05 pm

2 stops27h 50m

Rio de Janeiro–Galeão Intl

mar. 9/23

2:45 pm-3:18 pm

2 stops26h 33m

$969

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

vie. 9/12

4:05 pm-12:25 am

2 stops30h 20m

Rio de Janeiro–Galeão Intl

lun. 9/15

9:40 pm-7:38 pm

2 stops47h 58m

$1,096

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

dom. 9/14

6:15 am-8:15 am

1 stop24h 00m

Rio de Janeiro–Galeão Intl

mar. 9/23

9:05 pm-6:50 pm

1 stop23h 45m

$1,119

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

vie. 8/22

8:50 am-8:20 am

2 stops21h 30m

Rio de Janeiro–Galeão Intl

vie. 9/5

11:00 pm-6:41 pm

2 stops21h 41m

$1,202

St. LouisRio de Janeiro

STL - SDU

STLSDU

Lambert-St Louis

vie. 9/12

4:05 pm-2:20 pm

2 stops20h 15m

Rio de Janeiro Santos Dumont

lun. 9/15

3:05 pm-11:59 pm

2 stops34h 54m

$1,545

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

mié. 12/17

11:51 am-11:35 am

2 stops20h 44m

Rio de Janeiro–Galeão Intl

jue. 12/25

9:30 pm-4:11 pm

1 stop21h 41m

$2,138

St. LouisRio de Janeiro

STL - SDU

STLSDU

Lambert-St Louis

mié. 12/17

1:30 pm-1:15 pm

2 stops20h 45m

Rio de Janeiro Santos Dumont

sáb. 12/27

8:05 pm-6:24 pm

2 stops25h 19m

$2,604

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

vie. 12/19

6:00 am-6:25 am

2 stops21h 25m

Rio de Janeiro–Galeão Intl

sáb. 12/27

9:30 pm-9:04 am

1 stop14h 34m

$3,535

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

mié. 12/17

10:00 am-12:40 am

2 stops35h 40m

Rio de Janeiro–Galeão Intl

mié. 12/24

1:45 am-4:27 pm

2 stops17h 42m

$4,574

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 20 results
1
2

Best time to book a flight from St. Louis to Rio de Janeiro

Have a flexible travel schedule? Discover the best time to fly to Rio de Janeiro 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 Rio de Janeiro

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

Find hourly flight availability from St. Louis to Rio de Janeiro. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julio 30, 2025.

When flying from St. Louis to Rio de Janeiro, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 10% versus a flight in the afternoon.

Reviews of airlines servicing Rio de Janeiro

Get insights into the airlines that provide service to Rio de Janeiro. 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 Rio de Janeiro. Reviews last updated julio 30, 2025.
See what other customers who have flown with Delta, LATAM Airlines, and Copa Airlines from St. Louis to Rio de Janeiro have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,980 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

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
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

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
1,822 reviews
Delta
8.0
Very good
7,980 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

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!
Copa Airlines
7.5
Good
1,493 reviews
Delta
8.0
Very good
7,980 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

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!
United Airlines
7.4
Good
8,896 reviews
Delta
8.0
Very good
7,980 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

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!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,980 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

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 Rio de Janeiro. 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 Rio de Janeiro?

    If you book a flight to Rio de Janeiro from St. Louis, you will be flying from Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis. There are 0 flights from Lambert-St Louis to Rio de Janeiro per day from 2 different airlines.

  • What are the cheapest airlines flying from St. Louis to Rio de Janeiro round-trip?

    Flying on Air Canada is currently your cheapest option to Rio de Janeiro, with prices starting at $899. Additional round-trip tickets that might be worth considering are offered by United Airlines and American Airlines, with the lowest prices starting at $1,119 and $1,202, respectively. Air Canada is priced at 18% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from St. Louis to Rio de Janeiro one-way?

    The cheapest airline one-way is Copa Airlines, with whom users have recently found tickets for as low as $415. However, be on the lookout for offers from Air Canada and Delta, as they are both options that can get you from St. Louis to Rio de Janeiro for a low price.

  • Can I find deals for flights from St. Louis to Rio de Janeiro that include hotel bookings?

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

  • How can I find direct flights from St. Louis to Rio de Janeiro?

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

  • Can I find deals for business class flights from St. Louis to Rio de Janeiro?

    Yes. Cheapflights offers flight deals from St. Louis to Rio de Janeiro 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 Rio de Janeiro?

    Currently, November is the cheapest month in which you can book a flight from St. Louis to Rio de Janeiro (average of $755). Flying from St. Louis to Rio de Janeiro in December is currently the most expensive (average of $1,290). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for St. Louis to Rio de Janeiro

See prices for flight routes from nearby airports that may be better suited for you.
Kansas City to Rio de Janeiro–Galeão Intl flights
Kansas City to Santos Dumont flights
St. Louis to Rio de Janeiro–Galeão Intl flights
St. Louis to Santos Dumont flights

Top 2 airlines flying from St. Louis to Rio de Janeiro

Discover the top 2 airlines that operate flights from St. Louis to Rio de Janeiro. 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 julio 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$697Average$1,176FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$717Average$843FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.