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Cheap flights from St. Louis to Rio de Janeiro from $323

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 10/3. 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

Find the cheapest flights from St. Louis to Rio de Janeiro

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
9:15 am - 6:15 am
STL
-
GIG
19h 00m
2 stops
Delta Logo
9:00 pm - 9:54 am
GIG
-
STL
14h 54m
1 stop
$1,003Delta
Tue, Aug 18 - Mon, Aug 24
LATAM Airlines Logo
11:00 am - 6:15 am
STL
-
GIG
17h 15m
2 stops
LATAM Airlines Logo
11:10 am - 11:46 am
GIG
-
STL
26h 36m
2 stops
$1,004LATAM Airlines
Tue, Aug 18 - Mon, Aug 24
American Airlines Logo
11:31 am - 8:20 am
STL
-
GIG
18h 49m
2 stops
American Airlines Logo
10:10 pm - 2:46 pm
GIG
-
STL
18h 36m
2 stops
$1,007American Airlines
Wed, Oct 7 - Mon, Oct 19
American Airlines Logo
11:31 am - 8:20 am
STL
-
GIG
18h 49m
2 stops
American Airlines Logo
8:15 pm - 5:49 pm
GIG
-
STL
23h 34m
2 stops
$1,015American Airlines
Wed, Oct 7 - Mon, Oct 19
American Airlines Logo
5:00 am - 8:20 am
STL
-
GIG
25h 20m
1 stop
American Airlines Logo
8:15 pm - 5:49 pm
GIG
-
STL
23h 34m
2 stops
$1,023American Airlines
Wed, Oct 7 - Mon, Oct 19
GOL Logo
3:20 pm - 2:10 pm
STL
-
GIG
20h 50m
2 stops
GOL Logo
10:10 pm - 5:49 pm
GIG
-
STL
21h 39m
1 stop
$1,037GOL
Wed, Oct 7 - Mon, Oct 19
American Airlines Logo
11:31 am - 8:20 am
STL
-
GIG
18h 49m
2 stops
American Airlines Logo
8:15 pm - 5:49 pm
GIG
-
STL
23h 34m
2 stops
$1,042American Airlines
Wed, Oct 7 - Mon, Oct 19
United Airlines Logo
2:57 pm - 8:15 am
STL
-
GIG
15h 18m
1 stop
United Airlines Logo
9:05 pm - 10:10 am
GIG
-
STL
15h 05m
1 stop
$1,060United Airlines
Mon, Aug 10 - Tue, Aug 18
United Airlines Logo
1:13 pm - 8:15 am
STL
-
GIG
17h 02m
2 stops
United Airlines Logo
9:05 pm - 10:10 am
GIG
-
STL
15h 05m
1 stop
$1,064United Airlines
Mon, Aug 10 - Tue, Aug 18
Air Canada Logo
4:05 pm - 4:45 pm
STL
-
SDU
21h 40m
2 stops
Air Canada Logo
1:45 pm - 3:26 pm
SDU
-
STL
28h 41m
2 stops
$1,097Air Canada
Mon, Nov 16 - Thu, Nov 19

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Delta flights from St. Louis to Rio de Janeiro

Our best Delta deals on St. Louis to Rio de Janeiro flight tickets
Delta
Sep 7
STL12:52 pmLambert-St Louis
19h 23m
1 stop
GIG10:15 amRio de Janeiro–Galeão Intl
Sep 14
GIG9:00 pmRio de Janeiro–Galeão Intl
15h 55m
1 stop
STL10:55 amLambert-St Louis
$1,003
Delta
Sep 22
STL12:00 pmLambert-St Louis
16h 20m
2 stops
GIG6:20 amRio de Janeiro–Galeão Intl
Oct 1
GIG9:00 pmRio de Janeiro–Galeão Intl
14h 00m
1 stop
STL9:00 amLambert-St Louis
$1,474
Delta
Jul 26
STL6:00 amLambert-St Louis
26h 15m
1 stop
GIG10:15 amRio de Janeiro–Galeão Intl
Aug 15
GIG7:05 amRio de Janeiro–Galeão Intl
30h 41m
2 stops
STL11:46 amLambert-St Louis
$1,600

LATAM Airlines flights from St. Louis to Rio de Janeiro

Our best LATAM Airlines deals on St. Louis to Rio de Janeiro flight tickets
LATAM Airlines
Sep 7
STL6:00 amLambert-St Louis
32h 35m
2 stops
GIG4:35 pmRio de Janeiro–Galeão Intl
Sep 14
GIG11:10 amRio de Janeiro–Galeão Intl
23h 50m
2 stops
STL9:00 amLambert-St Louis
$1,004
LATAM Airlines
Sep 22
STL2:30 pmLambert-St Louis
29h 15m
2 stops
GIG9:45 pmRio de Janeiro–Galeão Intl
Oct 1
GIG7:10 amRio de Janeiro–Galeão Intl
18h 32m
2 stops
STL11:42 pmLambert-St Louis
$1,075
LATAM Airlines
Aug 10
STL5:23 pmLambert-St Louis
21h 07m
2 stops
GIG4:30 pmRio de Janeiro–Galeão Intl
Aug 18
GIG5:25 pmRio de Janeiro–Galeão Intl
20h 21m
2 stops
STL11:46 amLambert-St Louis
$1,117

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 July 25, 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 8/18

9:15 am-6:15 am

2 stops19h 00m

Rio de Janeiro–Galeão Intl

Mon 8/24

9:00 pm-9:54 am

1 stop14h 54m

$1,003

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Tue 8/18

11:00 am-6:15 am

2 stops17h 15m

Rio de Janeiro–Galeão Intl

Mon 8/24

11:10 am-11:46 am

2 stops26h 36m

$1,004

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Wed 10/7

11:31 am-8:20 am

2 stops18h 49m

Rio de Janeiro–Galeão Intl

Mon 10/19

10:10 pm-2:46 pm

2 stops18h 36m

$1,007

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Wed 10/7

11:31 am-8:20 am

2 stops18h 49m

Rio de Janeiro–Galeão Intl

Mon 10/19

8:15 pm-5:49 pm

2 stops23h 34m

$1,015

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Wed 10/7

5:00 am-8:20 am

1 stop25h 20m

Rio de Janeiro–Galeão Intl

Mon 10/19

8:15 pm-5:49 pm

2 stops23h 34m

$1,023

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Wed 10/7

3:20 pm-2:10 pm

2 stops20h 50m

Rio de Janeiro–Galeão Intl

Mon 10/19

10:10 pm-5:49 pm

1 stop21h 39m

$1,037

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Wed 10/7

11:31 am-8:20 am

2 stops18h 49m

Rio de Janeiro–Galeão Intl

Mon 10/19

8:15 pm-5:49 pm

2 stops23h 34m

$1,042
Quickest round-trip

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Mon 8/10

2:57 pm-8:15 am

1 stop15h 18m

Rio de Janeiro–Galeão Intl

Tue 8/18

9:05 pm-10:10 am

1 stop15h 05m

$1,060

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Mon 8/10

1:13 pm-8:15 am

2 stops17h 02m

Rio de Janeiro–Galeão Intl

Tue 8/18

9:05 pm-10:10 am

1 stop15h 05m

$1,064

St. LouisRio de Janeiro

STL - SDU

STLSDU

Lambert-St Louis

Mon 11/16

4:05 pm-4:45 pm

2 stops21h 40m

Rio de Janeiro Santos Dumont

Thu 11/19

1:45 pm-3:26 pm

2 stops28h 41m

$1,097

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 typical price of a round-trip flight between St. Louis and Rio de Janeiro?

Prices are currently low for flights on this route.

Typical prices usually range from $1,164 to $1,474.
The lowest price recently found on this route was $1,003.

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 $0, 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

15h 02m

Direct flights

None
The fastest flight from St. Louis to Rio de Janeiro takes 15h 02m
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

Frequently asked questions about flying from St. Louis to Rio de Janeiro

  • 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 15h 02m.

  • 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 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?

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