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Cheap flights from St. Louis to Rio de Janeiro from $940

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Rio de Janeiro departing on 2/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

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GOL Logo
11:30 am - 8:55 amSTL-SDU
42h 25m2 stops
GOL Logo
9:35 am - 10:29 amSDU-STL
27h 54m2 stops
$940GOL
Find Deal
Wed, Feb 18 - Sun, Feb 22
GOL Logo
11:30 am - 7:10 pmSTL-GIG
29h 40m2 stops
GOL Logo
6:05 am - 10:04 pmGIG-STL
17h 59m2 stops
$948GOL
Find Deal
Mon, Mar 23 - Wed, Mar 25
Multiple Airlines Logo
10:00 am - 8:20 amSTL-GIG
19h 20m1 stop
Multiple Airlines Logo
6:00 am - 9:40 pmGIG-STL
18h 40m2 stops
$958Multiple Airlines
Find Deal
Wed, Feb 18 - Wed, Feb 25
Multiple Airlines Logo
4:05 pm - 3:10 pmSTL-GIG
20h 05m2 stops
Multiple Airlines Logo
7:50 am - 3:29 pmGIG-STL
34h 39m2 stops
$972Multiple Airlines
Find Deal
Wed, Feb 18 - Wed, Feb 25
LATAM Airlines Logo
5:00 pm - 8:20 amSTL-GIG
12h 20m1 stop
LATAM Airlines Logo
9:30 pm - 10:50 amGIG-STL
16h 20m1 stop
$1,017LATAM Airlines
Find Deal
Wed, Feb 18 - Wed, Feb 25
Delta Logo
7:30 am - 8:20 amSTL-GIG
21h 50m1 stop
Delta Logo
9:30 pm - 9:04 amGIG-STL
14h 34m1 stop
$1,041Delta
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Wed, Feb 18 - Wed, Feb 25
Delta Logo
10:00 am - 8:00 amSTL-GIG
19h 00m2 stops
Delta Logo
9:30 pm - 6:04 pmGIG-STL
23h 34m1 stop
$1,045Delta
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Wed, Feb 18 - Wed, Feb 25
LATAM Airlines Logo
4:00 pm - 7:20 amSTL-GIG
13h 20m1 stop
LATAM Airlines Logo
9:30 pm - 10:50 amGIG-STL
15h 20m1 stop
$1,141LATAM Airlines
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Mon, Mar 23 - Wed, Mar 25
United Airlines Logo
5:24 pm - 4:40 pmSTL-SDU
44h 16m2 stops
United Airlines Logo
5:30 pm - 2:24 pmSDU-STL
23h 54m2 stops
$1,709United Airlines
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Sat, Nov 22 - Sat, Nov 29
United Airlines Logo
11:20 am - 9:35 amSTL-GIG
19h 15m1 stop
United Airlines Logo
9:55 pm - 10:39 amGIG-STL
15h 44m1 stop
$3,160United Airlines
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Sat, Nov 22 - Sat, Nov 29

Delta flights from St. Louis to Rio de Janeiro

Our best Delta deals on St. Louis to Rio de Janeiro flight tickets
Delta
Feb 18
STL7:30 amLambert-St Louis
21h 50m
1 stop
GIG8:20 amRio de Janeiro–Galeão Intl
Feb 25
GIG9:30 pmRio de Janeiro–Galeão Intl
14h 34m
1 stop
STL9:04 amLambert-St Louis
$1,041
Find similar
Delta
Feb 18
STL10:00 amLambert-St Louis
19h 00m
2 stops
GIG8:00 amRio de Janeiro–Galeão Intl
Feb 25
GIG9:30 pmRio de Janeiro–Galeão Intl
23h 34m
1 stop
STL6:04 pmLambert-St Louis
$1,045
Find similar
Delta
Mar 20
STL4:00 pmLambert-St Louis
13h 20m
1 stop
GIG7:20 amRio de Janeiro–Galeão Intl
Mar 27
GIG9:30 pmRio de Janeiro–Galeão Intl
19h 31m
1 stop
STL3:01 pmLambert-St Louis
$1,119
Find similar

GOL flights from St. Louis to Rio de Janeiro

Our best GOL deals on St. Louis to Rio de Janeiro flight tickets
GOL
Feb 18
STL11:30 amLambert-St Louis
42h 25m
2 stops
SDU8:55 amRio de Janeiro Santos Dumont
Feb 22
SDU9:35 amRio de Janeiro Santos Dumont
27h 54m
2 stops
STL10:29 amLambert-St Louis
$940
Find similar
GOL
Mar 23
STL11:30 amLambert-St Louis
29h 40m
2 stops
GIG7:10 pmRio de Janeiro–Galeão Intl
Mar 25
GIG6:05 amRio de Janeiro–Galeão Intl
17h 59m
2 stops
STL10:04 pmLambert-St Louis
$948
Find similar
GOL
Mar 20
STL11:30 amLambert-St Louis
21h 00m
2 stops
GIG10:30 amRio de Janeiro–Galeão Intl
Mar 27
GIG10:30 pmRio de Janeiro–Galeão Intl
37h 59m
2 stops
STL10:29 amLambert-St Louis
$982
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated October 9, 2025.
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

Wed 2/18

11:30 am-8:55 am

2 stops42h 25m

Rio de Janeiro Santos Dumont

Sun 2/22

9:35 am-10:29 am

2 stops27h 54m

$940

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Mon 3/23

11:30 am-7:10 pm

2 stops29h 40m

Rio de Janeiro–Galeão Intl

Wed 3/25

6:05 am-10:04 pm

2 stops17h 59m

$948

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Wed 2/18

10:00 am-8:20 am

1 stop19h 20m

Rio de Janeiro–Galeão Intl

Wed 2/25

6:00 am-9:40 pm

2 stops18h 40m

$958

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Wed 2/18

4:05 pm-3:10 pm

2 stops20h 05m

Rio de Janeiro–Galeão Intl

Wed 2/25

7:50 am-3:29 pm

2 stops34h 39m

$972

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Wed 2/18

5:00 pm-8:20 am

1 stop12h 20m

Rio de Janeiro–Galeão Intl

Wed 2/25

9:30 pm-10:50 am

1 stop16h 20m

$1,017

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Wed 2/18

7:30 am-8:20 am

1 stop21h 50m

Rio de Janeiro–Galeão Intl

Wed 2/25

9:30 pm-9:04 am

1 stop14h 34m

$1,041

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Wed 2/18

10:00 am-8:00 am

2 stops19h 00m

Rio de Janeiro–Galeão Intl

Wed 2/25

9:30 pm-6:04 pm

1 stop23h 34m

$1,045

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Mon 3/23

4:00 pm-7:20 am

1 stop13h 20m

Rio de Janeiro–Galeão Intl

Wed 3/25

9:30 pm-10:50 am

1 stop15h 20m

$1,141

St. LouisRio de Janeiro

STL - SDU

STLSDU

Lambert-St Louis

Sat 11/22

5:24 pm-4:40 pm

2 stops44h 16m

Rio de Janeiro Santos Dumont

Sat 11/29

5:30 pm-2:24 pm

2 stops23h 54m

$1,709

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Sat 11/22

11:20 am-9:35 am

1 stop19h 15m

Rio de Janeiro–Galeão Intl

Sat 11/29

9:55 pm-10:39 am

1 stop15h 44m

$3,160

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Rio de Janeiro from

How to get the cheapest flight ticket from St. Louis to Rio de Janeiro

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between St. Louis and Rio de Janeiro?

What is the cheapest month to fly to Rio de Janeiro?

The cheapest month to fly to Rio de Janeiro from St. Louis is in May. Flight prices, which tend to average around $763, are often lower during this time because this is during the off-season. The month of February is another great option to travel to Rio de Janeiro, with average flight prices from St. Louis averaging around $853.

What is the cheapest day to depart on your flight to Rio de Janeiro?

According to our data, Tuesday is the cheapest day to fly to Rio de Janeiro from St. Louis. The lowest ticket price found for a Tuesday departure recently was $723. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. On the other hand, Wednesday is the most expensive day to depart from St. Louis because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,396.

What is the cheapest time of day to depart on your flight to Rio de Janeiro?

At noon is the cheapest time of day to fly from St. Louis to Rio de Janeiro when you can find flight prices for as low as $1,032. Flying to Rio de Janeiro at noon is an ideal time because this is during off-peak travel hours. In the afternoon is when there is more demand to fly to Rio de Janeiro, so prices are often more expensive at around $1,138 per ticket.

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

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Rio de Janeiro according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Rio de Janeiro (STL to RIO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Rio de Janeiro

Direct flights

None
There are no direct flights from St. Louis to Rio de Janeiro. There are no popular flight routes from St. Louis to Rio de Janeiro.
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  • How far is Lambert-St Louis to Rio de Janeiro by plane?

    There are 5224.0 mi between Lambert-St Louis and Rio de Janeiro. In terms of flight time, this usually takes a little over 12h 20m.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Rio de Janeiro?

    Prices for flights from Lambert-St Louis Airport to Rio de Janeiro were last updated today.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Rio de Janeiro?

  • How old do you have to be to fly from Lambert-St Louis Airport to Rio de Janeiro?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Lambert-St Louis Airport to Rio de Janeiro.

  • What documentation or ID do you need to fly to Rio de Janeiro?

    The necessary travel and health documents for your Rio de Janeiro trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from St. Louis to Rio de Janeiro?

Best airlines flying from St. Louis to Rio de Janeiro

Compare and see reviews for airlines that fly from St. Louis to Rio de Janeiro with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $711Free CancellationRating
7.9
7,969 reviews
Search Delta flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Rio de Janeiro?

It is quick and easy to find St. Louis to Rio de Janeiro flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Rio de Janeiro that suits you.

Can I find flights from St. Louis to Rio de Janeiro with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for St. Louis to Rio de Janeiro flights to just show those with flexible booking policies.

How can momondo help me find flights from St. Louis to Rio de Janeiro?

momondo provides multiple filters to help you find the best flight to Rio de Janeiro from St. Louis. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from St. Louis to Rio de Janeiro right now. Can momondo alert me if prices change?

Yes. momondo can track prices for St. Louis to Rio de Janeiro flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Find better results for your trip to Brazil

Fly into one of these airports located in Rio de Janeiro

Airports listed have a maximum distance of 8.1 mi from Rio de Janeiro
Rio de Janeiro–Galeão Intl Airport
Rio de Janeiro Santos Dumont Airport