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

Flying on United Airlines is currently your cheapest option to Rio de Janeiro, with prices starting at $1,044. Additional round-trip tickets that might be worth considering are offered by American Airlines and Delta, with the lowest prices starting at $1,083 and $1,084, respectively. United Airlines is priced at 4% lower than the current average price of a flight leaving 3 months from now.

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.

What is the cheapest day to fly from St. Louis to Rio de Janeiro?

Travelers seeking maximum savings on their St. Louis to Rio de Janeiro flight should consider departing on Thursday mornings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

What is the cheapest day to fly round-trip from St. Louis to Rio de Janeiro?

Tuesday flights are found to be more expensive to fly from St. Louis to Rio de Janeiro. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Rio de Janeiro.

What is the cheapest month to fly from St. Louis to Rio de Janeiro?

Flights from St. Louis to Rio de Janeiro lean towards being more expensive in December. Prices are generally better when you fly from St. Louis to Rio de Janeiro in May, with the cheapest ticket starting at $759.

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.

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.

$449+ Flights from St. Louis to Rio de Janeiro, Brazil

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Cheap flight deals from St. Louis to Rio de Janeiro

Round-trip from	$992 (Mytrip)
One-way from	$449 (Kiwi.com)
Popular in	December
Cheapest in	May
Average price	$1,176

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. 7% potential increase in price ($84 potential increase over avg. RT price).

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Cheapest flight prices on average. 4% potential price decrease ($53 potential savings vs. average RT price).

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Average for round-trip flights in June 2025

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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 June 15, 2025.

Fri 8/810:47 amSTL - SDU

3 stops44h 23mMultiple Airlines

Fri 8/1511:25 amSDU - STL

2 stops34h 15mMultiple Airlines

Deal found 6/12

$992

Mon 7/284:00 pmSTL - GIG

2 stops30h 25mMultiple Airlines

Mon 8/41:20 pmGIG - STL

2 stops29h 11mMultiple Airlines

Deal found 6/13

$1,007

Mon 12/16:43 pmSTL - GIG

2 stops35h 52mUnited Airlines

Mon 12/89:55 pmGIG - STL

2 stops27h 37mUnited Airlines

Deal found 6/14

$1,044

Sat 10/1112:50 pmSTL - GIG

2 stops17h 30mAmerican Airlines

Mon 10/2011:00 pmGIG - STL

2 stops19h 08mAmerican Airlines

Deal found 6/14

$1,083

Sat 10/113:30 pmSTL - GIG

2 stops19h 40mDelta

Mon 10/209:00 pmGIG - STL

1 stop15h 40mDelta

Deal found 6/14

$1,084

Mon 12/14:15 pmSTL - SDU

2 stops19h 05mAir Canada

Mon 12/811:25 amSDU - STL

2 stops31h 01mAir Canada

Deal found 6/14

$1,165

Sat 8/238:15 amSTL - GIG

2 stops21h 45mCopa Airlines

Sat 8/301:30 amGIG - STL

2 stops18h 58mCopa Airlines

Deal found 6/13

$1,290

Fri 8/81:29 pmSTL - SDU

2 stops18h 06mLATAM Airlines

Fri 8/158:20 pmSDU - STL

2 stops18h 11mLATAM Airlines

Deal found 6/12

$1,346

Thu 6/268:00 amSTL - SDU

2 stops29h 50mUnited Airlines

Sat 7/51:00 pmSDU - STL

2 stops23h 40mUnited Airlines

Deal found 6/15

$1,394

Fri 6/135:30 pmSTL - GIG

2 stops21h 45mLATAM Airlines

Mon 6/237:00 amGIG - STL

2 stops18h 51mLATAM Airlines

Deal found 6/12

$1,420

Thu 6/2612:28 pmSTL - GIG

2 stops31h 57mGOL

Sat 7/57:15 pmGIG - STL

2 stops30h 42mGOL

Deal found 6/15

$1,477

Fri 8/228:15 amSTL - GIG

2 stops38h 10mAvianca

Thu 9/41:30 amGIG - STL

2 stops34h 32mAvianca

Deal found 6/13

$2,354

Best flights from St. Louis to Rio de Janeiro
Discover carefully curated flight deals from St. Louis to Rio de Janeiro that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 15, 2025.

Fri 8/810:47 amSTL - SDU

3 stops44h 23mMultiple Airlines

Fri 8/1511:25 amSDU - STL

2 stops34h 15mMultiple Airlines

Deal found 6/12

$992

Mon 12/16:43 pmSTL - GIG

2 stops35h 52mUnited Airlines

Mon 12/89:55 pmGIG - STL

2 stops27h 37mUnited Airlines

Deal found 6/14

$1,044

Sat 10/1112:50 pmSTL - GIG

2 stops17h 30mAmerican Airlines

Mon 10/2011:00 pmGIG - STL

2 stops19h 08mAmerican Airlines

Deal found 6/14

$1,083

Sat 10/113:30 pmSTL - GIG

2 stops19h 40mDelta

Mon 10/209:00 pmGIG - STL

1 stop15h 40mDelta

Deal found 6/14

$1,084

Mon 12/14:15 pmSTL - SDU

2 stops19h 05mAir Canada

Mon 12/811:25 amSDU - STL

2 stops31h 01mAir Canada

Deal found 6/14

$1,165

Sat 8/238:15 amSTL - GIG

2 stops21h 45mCopa Airlines

Sat 8/301:30 amGIG - STL

2 stops18h 58mCopa Airlines

Deal found 6/13

$1,290

Fri 8/81:29 pmSTL - SDU

2 stops18h 06mLATAM Airlines

Fri 8/158:20 pmSDU - STL

2 stops18h 11mLATAM Airlines

Deal found 6/12

$1,346

Thu 6/2612:28 pmSTL - GIG

2 stops31h 57mGOL

Sat 7/57:15 pmGIG - STL

2 stops30h 42mGOL

Deal found 6/15

$1,477

Mon 7/284:00 pmSTL - GIG

2 stops30h 25mMultiple Airlines

Mon 8/41:20 pmGIG - STL

2 stops29h 11mMultiple Airlines

Deal found 6/13

$1,007

Fri 8/228:15 amSTL - GIG

2 stops38h 10mAvianca

Thu 9/41:30 amGIG - STL

2 stops34h 32mAvianca

Deal found 6/13

$2,354

Thu 6/268:00 amSTL - SDU

2 stops29h 50mUnited Airlines

Sat 7/51:00 pmSDU - STL

2 stops23h 40mUnited Airlines

Deal found 6/15

$1,394

Thu 6/265:30 pmSTL - GIG

2 stops22h 50mLATAM Airlines

Sat 7/58:45 amGIG - STL

2 stops26h 58mLATAM Airlines

Deal found 6/13

$1,431

Last-minute flights from St. Louis to Rio de Janeiro
Discover last-minute flight deals from St. Louis to Rio de Janeiro. Data last updated June 15, 2025 and is based on user searches.

Fri 6/135:30 pmSTL - GIG

2 stops21h 45mLATAM Airlines

Mon 6/237:00 amGIG - STL

2 stops18h 51mLATAM Airlines

Deal found 6/12

$1,420

Fri 6/135:30 pmSTL - SDU

2 stops18h 20mLATAM Airlines

Mon 6/238:20 pmSDU - STL

2 stops15h 23mLATAM Airlines

Deal found 6/12

$5,819

Wed 6/255:55 pmSTL - GIG

1 stop36h 20mUnited Airlines

Wed 7/99:05 pmGIG - STL

1 stop23h 48mUnited Airlines

Deal found 6/13

$1,249

Wed 6/259:28 amSTL - GIG

2 stops18h 42mDelta

Wed 7/91:35 pmGIG - STL

2 stops22h 06mDelta

Deal found 6/13

$1,280

Wed 6/251:30 pmSTL - SDU

2 stops24h 20mAir Canada

Wed 7/97:55 amSDU - STL

2 stops37h 50mAir Canada

Deal found 6/13

$1,905

Wed 6/258:10 amSTL - GIG

2 stops21h 50mCopa Airlines

Tue 7/81:29 amGIG - STL

2 stops34h 30mCopa Airlines

Deal found 6/13

$1,919

Thu 6/268:25 amSTL - GIG

1 stop21h 50mUnited Airlines

Sat 7/59:05 pmGIG - STL

1 stop14h 23mUnited Airlines

Deal found 6/14

$1,239

Thu 6/268:00 amSTL - SDU

2 stops29h 50mUnited Airlines

Sat 7/51:00 pmSDU - STL

2 stops23h 40mUnited Airlines

Deal found 6/15

$1,394

Thu 6/2612:28 pmSTL - GIG

2 stops31h 57mGOL

Sat 7/57:15 pmGIG - STL

2 stops30h 42mGOL

Deal found 6/15

$1,477

Mon 7/284:00 pmSTL - GIG

2 stops30h 25mMultiple Airlines

Mon 8/41:20 pmGIG - STL

2 stops29h 11mMultiple Airlines

Deal found 6/13

$1,007

Mon 7/2810:47 amSTL - SDU

3 stops33h 38mMultiple Airlines

Mon 8/49:55 amSDU - STL

2 stops32h 36mMultiple Airlines

Deal found 6/13

$1,111

Mon 7/283:41 pmSTL - GIG

2 stops19h 29mDelta

Mon 8/49:00 pmGIG - STL

1 stop21h 18mDelta

Deal found 6/13

$1,196

One-way flights from St. Louis to Rio de Janeiro
Search for one-way flight options from St. Louis to Rio de Janeiro. Find affordable one-way fares based on user searches. Data last updated June 15, 2025.

Thu 7/36:36 pmSTL - GIG

3 stops27h 39mMultiple Airlines

Deal found 6/14

$449

Thu 7/38:00 amSTL - GIG

2 stops38h 15mCopa Airlines

Deal found 6/14

$560

Thu 7/35:47 pmSTL - SDU

3 stops35h 18mMultiple Airlines

Deal found 6/14

$562

Thu 7/310:15 amSTL - GIG

1 stop20h 00mUnited Airlines

Deal found 6/14

$834

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to Rio de Janeiro that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisRio de Janeiro

STL - SDU

STLSDU

Lambert-St Louis

Fri 8/8

10:47 am-9:10 am

3 stops44h 23m

Rio de Janeiro Santos Dumont

Fri 8/15

11:25 am-7:40 pm

2 stops34h 15m

$992

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Mon 7/28

4:00 pm-12:25 am

2 stops30h 25m

Rio de Janeiro–Galeão Intl

Mon 8/4

1:20 pm-4:31 pm

2 stops29h 11m

$1,007

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Mon 12/1

6:43 pm-9:35 am

2 stops35h 52m

Rio de Janeiro–Galeão Intl

Mon 12/8

9:55 pm-10:32 pm

2 stops27h 37m

$1,044

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Sat 10/11

12:50 pm-8:20 am

2 stops17h 30m

Rio de Janeiro–Galeão Intl

Mon 10/20

11:00 pm-4:08 pm

2 stops19h 08m

$1,083

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Sat 10/11

3:30 pm-1:10 pm

2 stops19h 40m

Rio de Janeiro–Galeão Intl

Mon 10/20

9:00 pm-10:40 am

1 stop15h 40m

$1,084

St. LouisRio de Janeiro

STL - SDU

STLSDU

Lambert-St Louis

Mon 12/1

4:15 pm-2:20 pm

2 stops19h 05m

Rio de Janeiro Santos Dumont

Mon 12/8

11:25 am-3:26 pm

2 stops31h 01m

$1,165

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Sat 8/23

8:15 am-8:00 am

2 stops21h 45m

Rio de Janeiro–Galeão Intl

Sat 8/30

1:30 am-6:28 pm

2 stops18h 58m

$1,290

St. LouisRio de Janeiro

STL - SDU

STLSDU

Lambert-St Louis

Fri 8/8

1:29 pm-9:35 am

2 stops18h 06m

Rio de Janeiro Santos Dumont

Fri 8/15

8:20 pm-12:31 pm

2 stops18h 11m

$1,346

St. LouisRio de Janeiro

STL - SDU

STLSDU

Lambert-St Louis

Thu 6/26

8:00 am-3:50 pm

2 stops29h 50m

Rio de Janeiro Santos Dumont

Sat 7/5

1:00 pm-10:40 am

2 stops23h 40m

$1,394

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Thu 6/26

5:30 pm-6:20 pm

2 stops22h 50m

Rio de Janeiro–Galeão Intl

Sat 7/5

8:45 am-9:43 am

2 stops26h 58m

$1,431

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/14

Showing 1-10 of 16 results

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?

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.

Rainfall in Rio de Janeiro by month

In terms of precipitation, rainfall in Rio de Janeiro ranges from 1.6 - 5.1 inches per month. January is typically the wettest month, when rainfall can reach 5.1 in. July is typically the driest time to visit Rio de Janeiro when rainfall is around 1.6 in.

Temperature in Rio de Janeiro by month

If weather is an important factor for your trip to Rio de Janeiro, use this chart to help with planning. For those seeking warmer temperatures, February is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 69.8 F).

Reviews of airlines servicing Rio de Janeiro

Get a feel of what it's like to fly with Delta, LATAM Airlines and Copa Airlines from St. Louis to Rio de Janeiro by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,961 reviews

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

7,961 reviews

Delta

8.0

Very good

7,961 reviews

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

1,785 reviews

Delta

8.0

Very good

7,961 reviews

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

1,451 reviews

Delta

8.0

Very good

7,961 reviews

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

8,793 reviews

Delta

8.0

Very good

7,961 reviews

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!

GOL

7.3

Good

1,073 reviews

Delta

8.0

Very good

7,961 reviews

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

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 United Airlines is currently your cheapest option to Rio de Janeiro, with prices starting at $1,044. Additional round-trip tickets that might be worth considering are offered by American Airlines and Delta, with the lowest prices starting at $1,083 and $1,084, respectively. United Airlines is priced at 4% lower than the current average price of a flight leaving 3 months from now.
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

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

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$697	Average$1,176	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$717	Average$847	FlexibilityNo cancel fee	On-time71%

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$449+ 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 7/3. Fares are subject to change and may not be available on all flights or dates of travel.

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

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Cheap flight deals from St. Louis to Rio de Janeiro

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from St. Louis to Rio de Janeiro

Cheapest flights from St. Louis to Rio de JaneiroExplore 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 June 15, 2025.

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 June 15, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to Rio de Janeiro that are best for you.

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.

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 June 15, 2025.

Rainfall in Rio de Janeiro by month

Plan your trip to Rio de Janeiro by taking into account the average rainfall totals by month.

Temperature in Rio de Janeiro by month

Plan your trip to Rio de Janeiro by taking into account the average temperature totals by month.

Reviews of airlines servicing Rio de Janeiro

Get a feel of what it's like to fly with Delta, LATAM Airlines and Copa Airlines from St. Louis to Rio de Janeiro by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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

How can I 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?

What is the cheapest month to book a flight from St. Louis to Rio de Janeiro?

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.

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

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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 June 15, 2025.