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Cheap flights from Rio de Janeiro to St. Louis from $345

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Rio de Janeiro to St. Louis departing on 2/1. 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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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
9:55 pm - 9:23 am
GIG
-
STL
14h 28m1 stop
United Airlines Logo
10:10 am - 9:35 am
STL
-
GIG
20h 25m1 stop
$1,097United Airlines
Thu, Feb 26 - Mon, Mar 2
United Airlines Logo
9:55 pm - 3:38 pm
GIG
-
STL
20h 43m1 stop
United Airlines Logo
10:10 am - 9:35 am
STL
-
GIG
20h 25m1 stop
$1,102United Airlines
Thu, Feb 26 - Mon, Mar 2
United Airlines Logo
9:55 pm - 5:45 pm
GIG
-
STL
22h 50m2 stops
United Airlines Logo
9:55 am - 9:35 am
STL
-
GIG
20h 40m2 stops
$1,103United Airlines
Thu, Feb 26 - Mon, Mar 2
American Airlines Logo
10:30 pm - 2:47 pm
GIG
-
STL
19h 17m1 stop
American Airlines Logo
6:02 pm - 9:25 am
STL
-
GIG
12h 23m1 stop
$1,123American Airlines
Wed, Jan 21 - Fri, Jan 30
American Airlines Logo
10:30 pm - 1:03 pm
GIG
-
STL
17h 33m2 stops
American Airlines Logo
6:02 pm - 9:25 am
STL
-
GIG
12h 23m1 stop
$1,128American Airlines
Wed, Jan 21 - Fri, Jan 30
American Airlines Logo
10:30 pm - 3:04 pm
GIG
-
STL
19h 34m2 stops
American Airlines Logo
11:27 am - 9:25 am
STL
-
GIG
18h 58m2 stops
$1,201American Airlines
Wed, Jan 21 - Fri, Jan 30
Air Canada Logo
3:55 pm - 3:29 pm
GIG
-
STL
26h 34m2 stops
Air Canada Logo
4:05 pm - 8:55 pm
STL
-
GIG
25h 50m3 stops
$5,625Air Canada
Wed, Jan 21 - Fri, Jan 30

American Airlines flights from Rio de Janeiro to St. Louis

Our best American Airlines deals on Rio de Janeiro to St. Louis flight tickets
American Airlines
Jan 21
GIG10:30 pmRio de Janeiro–Galeão Intl
19h 17m
1 stop
STL2:47 pmLambert-St Louis
Jan 30
STL6:02 pmLambert-St Louis
12h 23m
1 stop
GIG9:25 amRio de Janeiro–Galeão Intl
$1,123
Find similar
American Airlines
Jan 21
GIG10:30 pmRio de Janeiro–Galeão Intl
17h 33m
2 stops
STL1:03 pmLambert-St Louis
Jan 30
STL6:02 pmLambert-St Louis
12h 23m
1 stop
GIG9:25 amRio de Janeiro–Galeão Intl
$1,128
Find similar
American Airlines
Jan 21
GIG10:30 pmRio de Janeiro–Galeão Intl
19h 34m
2 stops
STL3:04 pmLambert-St Louis
Jan 30
STL11:27 amLambert-St Louis
18h 58m
2 stops
GIG9:25 amRio de Janeiro–Galeão Intl
$1,201
Find similar

United Airlines flights from Rio de Janeiro to St. Louis

Our best United Airlines deals on Rio de Janeiro to St. Louis flight tickets
United Airlines
Feb 26
GIG9:55 pmRio de Janeiro–Galeão Intl
14h 28m
1 stop
STL9:23 amLambert-St Louis
Mar 2
STL10:10 amLambert-St Louis
20h 25m
1 stop
GIG9:35 amRio de Janeiro–Galeão Intl
$1,097
Find similar
United Airlines
Feb 26
GIG9:55 pmRio de Janeiro–Galeão Intl
20h 43m
1 stop
STL3:38 pmLambert-St Louis
Mar 2
STL10:10 amLambert-St Louis
20h 25m
1 stop
GIG9:35 amRio de Janeiro–Galeão Intl
$1,102
Find similar
United Airlines
Feb 26
GIG9:55 pmRio de Janeiro–Galeão Intl
22h 50m
2 stops
STL5:45 pmLambert-St Louis
Mar 2
STL9:55 amLambert-St Louis
20h 40m
2 stops
GIG9:35 amRio de Janeiro–Galeão Intl
$1,103
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Rio de Janeiro to St. Louis 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 December 11, 2025.
Use the filters below to find and compare flights from Rio de Janeiro to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Rio de JaneiroSt. Louis

GIG - STL

GIGSTL

Rio de Janeiro–Galeão Intl

Thu 2/26

9:55 pm-9:23 am

1 stop14h 28m

Lambert-St Louis

Mon 3/2

10:10 am-9:35 am

1 stop20h 25m

$1,097

Rio de JaneiroSt. Louis

GIG - STL

GIGSTL

Rio de Janeiro–Galeão Intl

Thu 2/26

9:55 pm-3:38 pm

1 stop20h 43m

Lambert-St Louis

Mon 3/2

10:10 am-9:35 am

1 stop20h 25m

$1,102

Rio de JaneiroSt. Louis

GIG - STL

GIGSTL

Rio de Janeiro–Galeão Intl

Thu 2/26

9:55 pm-5:45 pm

2 stops22h 50m

Lambert-St Louis

Mon 3/2

9:55 am-9:35 am

2 stops20h 40m

$1,103

Rio de JaneiroSt. Louis

GIG - STL

GIGSTL

Rio de Janeiro–Galeão Intl

Wed 1/21

10:30 pm-2:47 pm

1 stop19h 17m

Lambert-St Louis

Fri 1/30

6:02 pm-9:25 am

1 stop12h 23m

$1,123

Rio de JaneiroSt. Louis

GIG - STL

GIGSTL

Rio de Janeiro–Galeão Intl

Wed 1/21

10:30 pm-1:03 pm

2 stops17h 33m

Lambert-St Louis

Fri 1/30

6:02 pm-9:25 am

1 stop12h 23m

$1,128

Rio de JaneiroSt. Louis

GIG - STL

GIGSTL

Rio de Janeiro–Galeão Intl

Wed 1/21

10:30 pm-3:04 pm

2 stops19h 34m

Lambert-St Louis

Fri 1/30

11:27 am-9:25 am

2 stops18h 58m

$1,201

Rio de JaneiroSt. Louis

GIG - STL

GIGSTL

Rio de Janeiro–Galeão Intl

Wed 1/21

3:55 pm-3:29 pm

2 stops26h 34m

Lambert-St Louis

Fri 1/30

4:05 pm-8:55 pm

3 stops25h 50m

$5,625

Rio de JaneiroSt. Louis

GIG - STL

GIGSTL

Rio de Janeiro–Galeão Intl

Sun 2/1

9:30 pm-11:33 pm

3 stops29h 03m

$345

Rio de JaneiroSt. Louis

GIG - STL

GIGSTL

Rio de Janeiro–Galeão Intl

Sun 2/1

10:55 pm-11:33 pm

2 stops27h 38m

$374

Rio de JaneiroSt. Louis

GIG - STL

GIGSTL

Rio de Janeiro–Galeão Intl

Sun 2/1

9:00 pm-3:29 pm

1 stop21h 29m

$657

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to St. Louis from

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

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

Can stopping save me money on Rio de Janeiro to St. Louis flights?

You could potentially save up to 57% on your flight if you consider stops on a Rio de Janeiro to St. Louis flight.

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

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

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

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

Fastest flight time

19h 34m

Direct flights

None
The fastest flight from Rio de Janeiro to St. Louis takes 19h 34m
There are no direct flights from Rio de Janeiro to St. Louis. There are no popular flight routes from Rio de Janeiro to St. Louis.
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  • How far is Rio de Janeiro to Lambert-St Louis by plane?

    There are 5224.0 mi between Rio de Janeiro and Lambert-St Louis. 19h 34m is a normal flight duration for this route.

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

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Rio de Janeiro to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents you'll need for your trip to Lambert-St Louis Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lambert-St Louis Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Maryland Heights
O'Fallon
Florissant
Fenton
Wentzville
St. Peters
Collinsville
Alton
Farmington
Festus
Clayton
Glencoe
Edwardsville
Eureka
Litchfield
Shrewsbury

Why use momondo?

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

Finding the right flight to St. Louis from Rio de Janeiro is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to St. Louis quick and easy, saving you time and money.

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

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

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

momondo helps you find the best flight between Rio de Janeiro and St. Louis by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Price alerts on flights to St. Louis from Rio de Janeiro are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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