How long is the flight from St. Louis to Rio de Janeiro?

Airlines like Air Canada and United Airlines fly from St. Louis to Rio de Janeiro in about 18h 41m. The time it takes to get you to your destination can typically vary by up to 34m. The distance from St. Louis to Rio de Janeiro is about 5238 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

Flying on Delta is currently your cheapest option to Rio de Janeiro, with prices starting at $697. Another option worth looking into is American Airlines, starting at $717 round trip. Delta is priced at 37% 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.

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.

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).

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.

$396+ Cheap Flights from St. Louis to Rio de Janeiro, Brazil

Q: How much does it cost to fly round-trip from St. Louis to Rio de Janeiro?

Airfare is below average for this route at the moment. St. Louis to Rio de Janeiro flights typically cost between $1,104 and $1,178 in October. The cheapest round-trip price found within the last 3 days was $777 on Multiple Airlines (Oct 11-Oct 18).

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Cheap flight deals from St. Louis to Rio de Janeiro

Round-trip from	$777 (Mytrip)
One-way from	$396 (Kiwi.com)
Popular in	December
Cheapest in	May
Average price	$1,104

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. 9% potential increase in price ($111 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($61 potential savings vs. average RT price).

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Average for round-trip flights in September 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 September 15, 2025.

Sat 10/117:15 pmSTL - SDU

2 stops25h 10mMultiple Airlines

Sat 10/182:15 pmSDU - STL

2 stops21h 47mMultiple Airlines

Deal found 9/13

$777

Sat 10/117:15 pmSTL - GIG

2 stops31h 25mMultiple Airlines

Sat 10/185:30 pmGIG - STL

2 stops18h 32mMultiple Airlines

Deal found 9/13

$802

Sat 12/65:12 pmSTL - GIG

2 stops17h 58mLATAM Airlines

Sat 12/137:15 amGIG - STL

2 stops17h 43mLATAM Airlines

Deal found 9/14

$1,118

Sat 10/1110:30 amSTL - GIG

2 stops17h 40mLATAM Airlines

Sat 10/189:00 pmGIG - STL

1 stop13h 05mLATAM Airlines

Deal found 9/13

$1,185

Sun 12/216:00 pmSTL - GIG

1 stop33h 15mMultiple Airlines

Thu 12/2510:25 amGIG - STL

2 stops32h 04mMultiple Airlines

Deal found 9/13

$1,188

Fri 9/268:25 amSTL - GIG

1 stop21h 50mUnited Airlines

Mon 9/299:05 pmGIG - STL

1 stop14h 47mUnited Airlines

Deal found 9/12

$1,198

Sat 12/64:45 pmSTL - GIG

1 stop13h 50mUnited Airlines

Sat 12/139:55 pmGIG - STL

1 stop15h 09mUnited Airlines

Deal found 9/14

$1,241

Sun 9/141:30 pmSTL - GIG

2 stops23h 35mMultiple Airlines

Tue 9/233:20 pmGIG - STL

2 stops25h 58mMultiple Airlines

Deal found 9/13

$1,244

Sun 12/216:00 pmSTL - GIG

2 stops18h 10mAmerican Airlines

Thu 12/257:50 pmGIG - STL

2 stops18h 00mAmerican Airlines

Deal found 9/13

$1,271

Sat 12/63:13 pmSTL - SDU

2 stops16h 57mUnited Airlines

Sat 12/135:30 pmSDU - STL

2 stops19h 34mUnited Airlines

Deal found 9/14

$1,367

Fri 9/265:15 amSTL - SDU

3 stops31h 05mMultiple Airlines

Mon 9/294:55 pmSDU - STL

2 stops24h 23mMultiple Airlines

Deal found 9/12

$1,943

Sun 12/216:00 pmSTL - SDU

2 stops25h 25mGOL

Thu 12/255:40 pmSDU - STL

2 stops31h 55mGOL

Deal found 9/13

$2,005

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 September 15, 2025.

Sat 10/117:15 pmSTL - SDU

2 stops25h 10mMultiple Airlines

Sat 10/182:15 pmSDU - STL

2 stops21h 47mMultiple Airlines

Deal found 9/13

$777

Thu 2/54:05 pmSTL - SDU

2 stops19h 15mAir Canada

Thu 2/1211:25 amSDU - STL

2 stops31h 04mAir Canada

Deal found 9/12

$1,016

Thu 2/510:00 amSTL - GIG

1 stop19h 20mDelta

Thu 2/129:30 pmGIG - STL

1 stop20h 31mDelta

Deal found 9/12

$1,040

Sat 12/61:33 pmSTL - GIG

1 stop15h 47mLATAM Airlines

Sat 12/135:40 pmGIG - STL

2 stops20h 01mLATAM Airlines

Deal found 9/14

$1,118

Fri 9/268:25 amSTL - GIG

1 stop21h 50mUnited Airlines

Mon 9/299:05 pmGIG - STL

1 stop14h 47mUnited Airlines

Deal found 9/12

$1,198

Sat 10/117:15 pmSTL - GIG

2 stops31h 25mMultiple Airlines

Sat 10/185:30 pmGIG - STL

2 stops18h 32mMultiple Airlines

Deal found 9/13

$802

Sun 12/216:00 pmSTL - SDU

2 stops25h 25mGOL

Thu 12/255:40 pmSDU - STL

2 stops31h 55mGOL

Deal found 9/13

$2,005

Thu 2/54:05 pmSTL - GIG

1 stop17h 00mMultiple Airlines

Thu 2/1212:30 pmGIG - STL

2 stops29h 59mMultiple Airlines

Deal found 9/12

$1,014

Wed 2/184:39 pmSTL - SDU

2 stops18h 41mUnited Airlines

Sun 2/222:50 pmSDU - STL

2 stops34h 24mUnited Airlines

Deal found 9/13

$1,306

Sun 12/216:00 pmSTL - GIG

1 stop33h 15mMultiple Airlines

Thu 12/2510:25 amGIG - STL

2 stops32h 04mMultiple Airlines

Deal found 9/13

$1,188

Sat 12/63:13 pmSTL - SDU

2 stops16h 57mUnited Airlines

Sat 12/135:30 pmSDU - STL

2 stops19h 34mUnited Airlines

Deal found 9/14

$1,367

Fri 9/265:15 amSTL - SDU

3 stops31h 05mMultiple Airlines

Mon 9/294:55 pmSDU - STL

2 stops24h 23mMultiple Airlines

Deal found 9/12

$1,943

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 September 15, 2025 and is based on user searches.

Sun 9/141:30 pmSTL - GIG

2 stops23h 35mMultiple Airlines

Tue 9/233:20 pmGIG - STL

2 stops25h 58mMultiple Airlines

Deal found 9/13

$1,244

Sun 9/145:30 pmSTL - GIG

2 stops36h 45mUnited Airlines

Tue 9/239:05 pmGIG - STL

1 stop14h 52mUnited Airlines

Deal found 9/14

$1,304

Sun 9/141:26 pmSTL - GIG

1 stop18h 49mDelta

Tue 9/239:00 pmGIG - STL

1 stop14h 59mDelta

Deal found 9/14

$1,350

Sun 9/141:30 pmSTL - SDU

2 stops21h 50mMultiple Airlines

Tue 9/2311:25 amSDU - STL

2 stops29h 53mMultiple Airlines

Deal found 9/14

$4,085

Fri 9/268:25 amSTL - GIG

1 stop21h 50mUnited Airlines

Mon 9/299:05 pmGIG - STL

1 stop14h 47mUnited Airlines

Deal found 9/12

$1,198

Fri 9/265:15 amSTL - SDU

3 stops31h 05mMultiple Airlines

Mon 9/294:55 pmSDU - STL

2 stops24h 23mMultiple Airlines

Deal found 9/12

$1,943

Sat 10/117:15 pmSTL - SDU

2 stops25h 10mMultiple Airlines

Sat 10/182:15 pmSDU - STL

2 stops21h 47mMultiple Airlines

Deal found 9/13

$777

Sat 10/117:15 pmSTL - GIG

2 stops31h 25mMultiple Airlines

Sat 10/185:30 pmGIG - STL

2 stops18h 32mMultiple Airlines

Deal found 9/13

$802

Sat 10/1110:30 amSTL - GIG

2 stops17h 40mLATAM Airlines

Sat 10/189:00 pmGIG - STL

1 stop13h 05mLATAM Airlines

Deal found 9/13

$1,185

Sat 10/118:25 amSTL - GIG

1 stop21h 50mUnited Airlines

Sat 10/189:05 pmGIG - STL

1 stop14h 47mUnited Airlines

Deal found 9/13

$1,295

Sat 10/118:00 amSTL - GIG

2 stops22h 00mCopa Airlines

Fri 10/171:30 amGIG - STL

2 stops20h 12mCopa Airlines

Deal found 9/13

$1,328

Sat 10/115:23 amSTL - GIG

1 stop24h 57mAmerican Airlines

Sat 10/1811:00 pmGIG - STL

1 stop26h 56mAmerican Airlines

Deal found 9/13

$1,413

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 September 15, 2025.

Sun 2/112:20 pmSTL - GIG

3 stops51h 25mMultiple Airlines

Deal found 9/15

$396

Sat 1/312:48 pmSTL - SDU

3 stops52h 07mMultiple Airlines

Deal found 9/15

$398

Sat 1/312:48 pmSTL - GIG

3 stops48h 57mMultiple Airlines

Deal found 9/15

$401

Mon 2/25:11 pmSTL - SDU

3 stops35h 29mMultiple Airlines

Deal found 9/15

$402

Mon 2/25:11 pmSTL - GIG

3 stops38h 49mMultiple Airlines

Deal found 9/15

$427

Wed 1/215:11 pmSTL - GIG

3 stops46h 34mMultiple Airlines

Deal found 9/14

$438

Wed 1/215:11 pmSTL - SDU

3 stops37h 14mMultiple Airlines

Deal found 9/14

$443

Mon 1/265:11 pmSTL - SDU

3 stops36h 09mMultiple Airlines

Deal found 9/15

$455

Mon 1/265:11 pmSTL - GIG

3 stops38h 34mMultiple Airlines

Deal found 9/15

$457

Sun 1/2512:20 pmSTL - GIG

3 stops41h 05mMultiple Airlines

Deal found 9/14

$459

Sun 1/2512:20 pmSTL - SDU

3 stops42h 05mMultiple Airlines

Deal found 9/14

$463

Thu 1/294:05 pmSTL - GIG

1 stop17h 00mAir Canada

Deal found 9/15

$465

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

Sat 10/11

7:15 pm-10:25 pm

2 stops25h 10m

Rio de Janeiro Santos Dumont

Sat 10/18

2:15 pm-10:02 am

2 stops21h 47m

$777

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Sat 10/11

7:15 pm-4:40 am

2 stops31h 25m

Rio de Janeiro–Galeão Intl

Sat 10/18

5:30 pm-10:02 am

2 stops18h 32m

$802

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Thu 2/5

4:05 pm-12:05 pm

1 stop17h 00m

Rio de Janeiro–Galeão Intl

Thu 2/12

12:30 pm-3:29 pm

2 stops29h 59m

$1,014

St. LouisRio de Janeiro

STL - SDU

STLSDU

Lambert-St Louis

Thu 2/5

4:05 pm-2:20 pm

2 stops19h 15m

Rio de Janeiro Santos Dumont

Thu 2/12

11:25 am-3:29 pm

2 stops31h 04m

$1,016

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Thu 2/5

10:00 am-8:20 am

1 stop19h 20m

Rio de Janeiro–Galeão Intl

Thu 2/12

9:30 pm-3:01 pm

1 stop20h 31m

$1,040

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Sat 12/6

1:33 pm-8:20 am

1 stop15h 47m

Rio de Janeiro–Galeão Intl

Sat 12/13

5:40 pm-10:41 am

2 stops20h 01m

$1,118

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Sun 12/21

6:00 pm-6:15 am

1 stop33h 15m

Rio de Janeiro–Galeão Intl

Thu 12/25

10:25 am-3:29 pm

2 stops32h 04m

$1,188

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Fri 9/26

8:25 am-8:15 am

1 stop21h 50m

Rio de Janeiro–Galeão Intl

Mon 9/29

9:05 pm-9:52 am

1 stop14h 47m

$1,198

St. LouisRio de Janeiro

STL - SDU

STLSDU

Lambert-St Louis

Wed 2/18

4:39 pm-2:20 pm

2 stops18h 41m

Rio de Janeiro Santos Dumont

Sun 2/22

2:50 pm-10:14 pm

2 stops34h 24m

$1,306

St. LouisRio de Janeiro

STL - SDU

STLSDU

Lambert-St Louis

Sat 12/6

3:13 pm-11:10 am

2 stops16h 57m

Rio de Janeiro Santos Dumont

Sat 12/13

5:30 pm-10:04 am

2 stops19h 34m

$1,367

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 33 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.

How much does it cost to fly round-trip from St. Louis to Rio de Janeiro?

Reviews of airlines servicing Rio de Janeiro

See what other customers who have flown with Delta, LATAM Airlines, and United 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

7,954 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

7,954 reviews

Delta

8.0

Very good

7,954 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

1,847 reviews

Delta

8.0

Very good

7,954 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

8,929 reviews

Delta

8.0

Very good

7,954 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!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,954 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.
How long is the flight from St. Louis to Rio de Janeiro?
Airlines like Air Canada and United Airlines fly from St. Louis to Rio de Janeiro in about 18h 41m. The time it takes to get you to your destination can typically vary by up to 34m. The distance from St. Louis to Rio de Janeiro is about 5238 mi. Both multi-stop and nonstop flights can be found to your destination and back.
What are the cheapest airlines flying from St. Louis to Rio de Janeiro round-trip?
Flying on Delta is currently your cheapest option to Rio de Janeiro, with prices starting at $697. Another option worth looking into is American Airlines, starting at $717 round trip. Delta is priced at 37% 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$1,213	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$717	Average$843	FlexibilityNo cancel fee	On-time71%

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$396+ 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 2/1. Fares are subject to change and may not be available on all flights or dates of travel.

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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 September 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 September 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 September 15, 2025.

How much does it cost to fly round-trip from St. Louis to Rio de Janeiro?

Reviews of airlines servicing Rio de Janeiro

See what other customers who have flown with Delta, LATAM Airlines, and United 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.

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?

How long is the flight 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?

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Alternative routes for St. Louis to Rio de Janeiro

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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 September 15, 2025.