Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from St. Louis to Rio de Janeiro from $346

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 2/3. 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
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
4:05 pm - 12:05 pm
STL
-
GIG
17h 00m
1 stop
Air Canada Logo
8:00 pm - 3:29 pm
GIG
-
STL
21h 29m
1 stop
$758Air Canada
Sat, Mar 7 - Fri, Mar 13
Multiple Airlines Logo
7:47 am - 3:10 pm
STL
-
GIG
52h 23m
3 stops
Multiple Airlines Logo
5:55 am - 11:19 pm
GIG
-
STL
19h 24m
2 stops
$835Multiple Airlines
Sat, Mar 7 - Fri, Mar 13
Multiple Airlines Logo
7:47 am - 3:10 pm
STL
-
GIG
52h 23m
3 stops
Multiple Airlines Logo
5:55 am - 9:49 am
GIG
-
STL
29h 54m
3 stops
$873Multiple Airlines
Sat, Mar 7 - Fri, Mar 13
GOL Logo
6:20 pm - 6:25 am
STL
-
GIG
33h 05m
2 stops
GOL Logo
5:55 am - 11:58 pm
GIG
-
STL
20h 03m
2 stops
$893GOL
Sat, Mar 7 - Fri, Mar 13
GOL Logo
11:06 am - 12:35 pm
STL
-
SDU
23h 29m
2 stops
GOL Logo
6:00 am - 10:16 am
SDU
-
STL
30h 16m
2 stops
$923GOL
Thu, Apr 9 - Mon, Apr 13
Multiple Airlines Logo
4:05 pm - 10:05 am
STL
-
GIG
39h 00m
2 stops
Multiple Airlines Logo
8:00 pm - 3:29 pm
GIG
-
STL
21h 29m
1 stop
$961Multiple Airlines
Mon, Mar 2 - Wed, Mar 18
GOL Logo
11:06 am - 8:35 pm
STL
-
GIG
31h 29m
2 stops
GOL Logo
6:05 am - 10:24 pm
GIG
-
STL
18h 19m
2 stops
$964GOL
Tue, Apr 14 - Mon, May 11
GOL Logo
11:06 am - 10:40 am
STL
-
GIG
21h 34m
2 stops
GOL Logo
6:25 pm - 10:24 pm
GIG
-
STL
29h 59m
2 stops
$975GOL
Thu, Apr 9 - Mon, Apr 13
Multiple Airlines Logo
4:05 pm - 7:05 am
STL
-
GIG
36h 00m
2 stops
Multiple Airlines Logo
8:00 pm - 3:29 pm
GIG
-
STL
21h 29m
1 stop
$1,000Multiple Airlines
Sat, Mar 7 - Fri, Mar 13
Air Canada Logo
4:05 pm - 4:45 pm
STL
-
SDU
22h 40m
2 stops
Air Canada Logo
1:45 pm - 8:05 pm
SDU
-
STL
32h 20m
2 stops
$1,012Air Canada
Tue, Apr 14 - Mon, May 11

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
Apr 14
STL11:06 amLambert-St Louis
19h 14m
1 stop
GIG8:20 amRio de Janeiro–Galeão Intl
May 11
GIG11:10 pmRio de Janeiro–Galeão Intl
25h 14m
1 stop
STL10:24 pmLambert-St Louis
$1,062
American Airlines
Mar 2
STL6:20 pmLambert-St Louis
12h 05m
1 stop
GIG9:25 amRio de Janeiro–Galeão Intl
Mar 18
GIG10:55 pmRio de Janeiro–Galeão Intl
13h 37m
1 stop
STL10:32 amLambert-St Louis
$1,141

Copa Airlines flights from St. Louis to Rio de Janeiro

Our best Copa Airlines deals on St. Louis to Rio de Janeiro flight tickets
Copa Airlines
Feb 3
STL8:30 amLambert-St Louis
20h 30m
2 stops
GIG8:00 amRio de Janeiro–Galeão Intl
Feb 7
GIG10:10 amRio de Janeiro–Galeão Intl
27h 03m
2 stops
STL10:13 amLambert-St Louis
$1,119
Copa Airlines
Feb 3
STL8:30 amLambert-St Louis
20h 30m
2 stops
GIG8:00 amRio de Janeiro–Galeão Intl
Feb 7
GIG10:10 amRio de Janeiro–Galeão Intl
27h 03m
2 stops
STL10:13 amLambert-St Louis
$1,139
Copa Airlines
Feb 20
STL7:41 amLambert-St Louis
22h 54m
2 stops
GIG9:35 amRio de Janeiro–Galeão Intl
Feb 24
GIG9:55 pmRio de Janeiro–Galeão Intl
14h 28m
1 stop
STL9:23 amLambert-St Louis
$1,182

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 January 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

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Sat 3/7

4:05 pm-12:05 pm

1 stop17h 00m

Rio de Janeiro–Galeão Intl

Fri 3/13

8:00 pm-3:29 pm

1 stop21h 29m

$758

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Sat 3/7

7:47 am-3:10 pm

3 stops52h 23m

Rio de Janeiro–Galeão Intl

Fri 3/13

5:55 am-11:19 pm

2 stops19h 24m

$835

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Sat 3/7

7:47 am-3:10 pm

3 stops52h 23m

Rio de Janeiro–Galeão Intl

Fri 3/13

5:55 am-9:49 am

3 stops29h 54m

$873

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Sat 3/7

6:20 pm-6:25 am

2 stops33h 05m

Rio de Janeiro–Galeão Intl

Fri 3/13

5:55 am-11:58 pm

2 stops20h 03m

$893

St. LouisRio de Janeiro

STL - SDU

STLSDU

Lambert-St Louis

Thu 4/9

11:06 am-12:35 pm

2 stops23h 29m

Rio de Janeiro Santos Dumont

Mon 4/13

6:00 am-10:16 am

2 stops30h 16m

$923

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Mon 3/2

4:05 pm-10:05 am

2 stops39h 00m

Rio de Janeiro–Galeão Intl

Wed 3/18

8:00 pm-3:29 pm

1 stop21h 29m

$961

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Tue 4/14

11:06 am-8:35 pm

2 stops31h 29m

Rio de Janeiro–Galeão Intl

Mon 5/11

6:05 am-10:24 pm

2 stops18h 19m

$964

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Thu 4/9

11:06 am-10:40 am

2 stops21h 34m

Rio de Janeiro–Galeão Intl

Mon 4/13

6:25 pm-10:24 pm

2 stops29h 59m

$975

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Sat 3/7

4:05 pm-7:05 am

2 stops36h 00m

Rio de Janeiro–Galeão Intl

Fri 3/13

8:00 pm-3:29 pm

1 stop21h 29m

$1,000

St. LouisRio de Janeiro

STL - SDU

STLSDU

Lambert-St Louis

Tue 4/14

4:05 pm-4:45 pm

2 stops22h 40m

Rio de Janeiro Santos Dumont

Mon 5/11

1:45 pm-8:05 pm

2 stops32h 20m

$1,012

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

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

17h 00m

Direct flights

None
The fastest flight from St. Louis to Rio de Janeiro takes 17h 00m
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 17h 00m.

  • 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
8,048 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.

An easier way to manage your Rio de Janeiro trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 2/13
Fri 2/20
By creating a price alert you accept our terms of use and privacy policy.

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