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Cheap flights from St. Louis to Rio de Janeiro from $413

This is the cheapest one-way 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 5/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:55 am - 11:10 pm
STL
-
GIG
36h 15m
2 stops
Multiple Airlines Logo
8:50 pm - 6:41 pm
GIG
-
STL
47h 51m
2 stops
$1,057Multiple Airlines
Tue, Sep 8 - Tue, Sep 15
LATAM Airlines Logo
11:51 am - 4:30 pm
STL
-
GIG
26h 39m
2 stops
LATAM Airlines Logo
7:00 am - 8:06 am
GIG
-
STL
27h 06m
2 stops
$1,104LATAM Airlines
Mon, Sep 7 - Mon, Sep 14
LATAM Airlines Logo
7:05 pm - 6:35 pm
STL
-
GIG
21h 30m
2 stops
LATAM Airlines Logo
9:00 pm - 6:02 pm
GIG
-
STL
23h 02m
1 stop
$1,105LATAM Airlines
Tue, Sep 8 - Tue, Sep 15
United Airlines Logo
6:14 am - 8:15 am
STL
-
GIG
24h 01m
1 stop
United Airlines Logo
9:05 pm - 2:08 pm
GIG
-
STL
19h 03m
1 stop
$1,112United Airlines
Mon, Sep 7 - Wed, Sep 16
United Airlines Logo
8:35 am - 8:15 am
STL
-
GIG
21h 40m
1 stop
United Airlines Logo
9:05 pm - 12:49 pm
GIG
-
STL
17h 44m
2 stops
$1,116United Airlines
Mon, Sep 7 - Wed, Sep 16
GOL Logo
11:06 am - 8:35 pm
STL
-
GIG
31h 29m
2 stops
GOL Logo
8:30 am - 10:16 am
GIG
-
STL
51h 46m
2 stops
$1,131GOL
Tue, Apr 28 - Tue, May 5
United Airlines Logo
6:55 pm - 8:15 am
STL
-
GIG
35h 20m
2 stops
United Airlines Logo
9:05 pm - 10:09 am
GIG
-
STL
15h 04m
1 stop
$1,134United Airlines
Sun, Sep 6 - Tue, Sep 15
GOL Logo
11:06 am - 10:40 am
STL
-
GIG
21h 34m
2 stops
GOL Logo
6:05 am - 10:24 pm
GIG
-
STL
18h 19m
2 stops
$1,136GOL
Mon, Apr 27 - Mon, May 4
LATAM Airlines Logo
5:30 pm - 10:15 am
STL
-
GIG
14h 45m
1 stop
LATAM Airlines Logo
9:00 pm - 8:06 am
GIG
-
STL
13h 06m
1 stop
$1,144LATAM Airlines
Sun, Sep 6 - Tue, Sep 15
Air Canada Logo
6:55 pm - 4:45 pm
STL
-
SDU
19h 50m
2 stops
Air Canada Logo
1:45 pm - 9:30 am
SDU
-
STL
21h 45m
2 stops
$1,507Air Canada
Tue, Apr 28 - Tue, May 5

GOL flights from St. Louis to Rio de Janeiro

Our best GOL deals on St. Louis to Rio de Janeiro flight tickets
GOL
Apr 28
STL11:06 amLambert-St Louis
31h 29m
2 stops
GIG8:35 pmRio de Janeiro–Galeão Intl
May 5
GIG8:30 amRio de Janeiro–Galeão Intl
51h 46m
2 stops
STL10:16 amLambert-St Louis
$1,131
GOL
Apr 27
STL11:06 amLambert-St Louis
21h 34m
2 stops
GIG10:40 amRio de Janeiro–Galeão Intl
May 4
GIG6:05 amRio de Janeiro–Galeão Intl
18h 19m
2 stops
STL10:24 pmLambert-St Louis
$1,136
GOL
Apr 27
STL11:06 amLambert-St Louis
21h 49m
2 stops
SDU10:55 amRio de Janeiro Santos Dumont
May 4
SDU8:50 pmRio de Janeiro Santos Dumont
27h 34m
2 stops
STL10:24 pmLambert-St Louis
$1,180

American Airlines flights from St. Louis to Rio de Janeiro

Our best American Airlines deals on St. Louis to Rio de Janeiro flight tickets
American Airlines
May 11
STL3:38 pmLambert-St Louis
20h 32m
2 stops
GIG2:10 pmRio de Janeiro–Galeão Intl
Jul 27
GIG2:50 pmRio de Janeiro–Galeão Intl
21h 34m
2 stops
STL10:24 amLambert-St Louis
$1,219
American Airlines
Sep 9
STL1:25 pmLambert-St Louis
16h 55m
2 stops
GIG8:20 amRio de Janeiro–Galeão Intl
Sep 13
GIG10:10 pmRio de Janeiro–Galeão Intl
27h 02m
1 stop
STL11:12 pmLambert-St Louis
$1,228
American Airlines
Apr 27
STL11:06 amLambert-St Louis
19h 14m
1 stop
GIG8:20 amRio de Janeiro–Galeão Intl
May 4
GIG10:10 pmRio de Janeiro–Galeão Intl
14h 06m
1 stop
STL10:16 amLambert-St Louis
$1,237

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 March 14, 2026.
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

Cheapest round-trip

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Tue 9/8

8:55 am-11:10 pm

2 stops36h 15m

Rio de Janeiro–Galeão Intl

Tue 9/15

8:50 pm-6:41 pm

2 stops47h 51m

$1,057

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Mon 9/7

11:51 am-4:30 pm

2 stops26h 39m

Rio de Janeiro–Galeão Intl

Mon 9/14

7:00 am-8:06 am

2 stops27h 06m

$1,104

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Tue 9/8

7:05 pm-6:35 pm

2 stops21h 30m

Rio de Janeiro–Galeão Intl

Tue 9/15

9:00 pm-6:02 pm

1 stop23h 02m

$1,105

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Mon 9/7

6:14 am-8:15 am

1 stop24h 01m

Rio de Janeiro–Galeão Intl

Wed 9/16

9:05 pm-2:08 pm

1 stop19h 03m

$1,112

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Mon 9/7

8:35 am-8:15 am

1 stop21h 40m

Rio de Janeiro–Galeão Intl

Wed 9/16

9:05 pm-12:49 pm

2 stops17h 44m

$1,116

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Tue 4/28

11:06 am-8:35 pm

2 stops31h 29m

Rio de Janeiro–Galeão Intl

Tue 5/5

8:30 am-10:16 am

2 stops51h 46m

$1,131

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Sun 9/6

6:55 pm-8:15 am

2 stops35h 20m

Rio de Janeiro–Galeão Intl

Tue 9/15

9:05 pm-10:09 am

1 stop15h 04m

$1,134

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Mon 4/27

11:06 am-10:40 am

2 stops21h 34m

Rio de Janeiro–Galeão Intl

Mon 5/4

6:05 am-10:24 pm

2 stops18h 19m

$1,136
Quickest round-trip

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Sun 9/6

5:30 pm-10:15 am

1 stop14h 45m

Rio de Janeiro–Galeão Intl

Tue 9/15

9:00 pm-8:06 am

1 stop13h 06m

$1,144

St. LouisRio de Janeiro

STL - SDU

STLSDU

Lambert-St Louis

Tue 4/28

6:55 pm-4:45 pm

2 stops19h 50m

Rio de Janeiro Santos Dumont

Tue 5/5

1:45 pm-9:30 am

2 stops21h 45m

$1,507

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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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 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 $761, are often lower during this time because this is during the off-season. The month of April is another great option to travel to Rio de Janeiro, with average flight prices from St. Louis averaging around $778.

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

Fastest flight time

18h 42m

Direct flights

None
The fastest flight from St. Louis to Rio de Janeiro takes 18h 42m
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.
Search flight deals

  • 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 18h 42m.

  • 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 $1,102Free CancellationRating
7.9
8,291 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