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Cheap flights from St. Louis to Rio de Janeiro from $301

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 1/12. 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.
Air Canada Logo
4:05 pm - 12:05 pm
STL
-
GIG
17h 00m1 stop
Air Canada Logo
8:00 pm - 3:29 pm
GIG
-
STL
21h 29m1 stop
$769Air Canada
Sat, Mar 7 - Wed, Mar 11
Air Canada Logo
4:05 pm - 12:05 pm
STL
-
GIG
17h 00m1 stop
Air Canada Logo
3:55 pm - 3:29 pm
GIG
-
STL
25h 34m2 stops
$775Air Canada
Sat, Mar 7 - Wed, Mar 11
Air Canada Logo
1:00 pm - 2:05 pm
STL
-
GIG
23h 05m2 stops
Air Canada Logo
2:50 pm - 12:06 pm
GIG
-
STL
23h 16m2 stops
$778Air Canada
Tue, May 5 - Tue, May 12
Air Canada Logo
4:05 pm - 12:05 pm
STL
-
GIG
17h 00m1 stop
Air Canada Logo
3:55 pm - 3:29 pm
GIG
-
STL
25h 34m2 stops
$848Air Canada
Tue, Feb 24 - Tue, Mar 10
Air Canada Logo
1:00 pm - 2:05 pm
STL
-
GIG
23h 05m2 stops
Air Canada Logo
2:50 pm - 8:05 pm
GIG
-
STL
31h 15m2 stops
$850Air Canada
Tue, May 12 - Thu, May 21
Air Canada Logo
2:20 pm - 2:05 pm
STL
-
GIG
21h 45m2 stops
Air Canada Logo
2:50 pm - 8:05 pm
GIG
-
STL
31h 15m2 stops
$853Air Canada
Thu, May 14 - Thu, May 21
Copa Airlines Logo
8:05 am - 8:00 am
STL
-
GIG
20h 55m2 stops
Copa Airlines Logo
1:40 am - 10:36 am
GIG
-
STL
35h 56m2 stops
$879Copa Airlines
Tue, Jan 27 - Mon, Feb 2
Multiple Airlines Logo
4:05 pm - 12:05 pm
STL
-
GIG
17h 00m1 stop
Multiple Airlines Logo
8:45 pm - 3:29 pm
GIG
-
STL
45h 44m2 stops
$963Multiple Airlines
Tue, Jan 27 - Tue, Feb 3
Multiple Airlines Logo
1:00 pm - 9:25 am
STL
-
GIG
42h 25m2 stops
Multiple Airlines Logo
3:15 pm - 8:05 pm
GIG
-
STL
30h 50m2 stops
$988Multiple Airlines
Tue, May 26 - Sat, Jun 6
Air Canada Logo
4:05 pm - 3:15 pm
STL
-
GIG
20h 10m2 stops
Air Canada Logo
3:55 pm - 3:29 pm
GIG
-
STL
25h 34m2 stops
$996Air Canada
Sat, Mar 7 - Wed, Mar 11

LATAM Airlines flights from St. Louis to Rio de Janeiro–Galeão Intl Airport

Our best LATAM Airlines deals on St. Louis to Rio de Janeiro–Galeão Intl Airport flight tickets
LATAM Airlines
Feb 11
STL5:04 pmLambert-St Louis
20h 46m
2 stops
GIG4:50 pmRio de Janeiro–Galeão Intl
Feb 15
GIG7:15 amRio de Janeiro–Galeão Intl
19h 21m
2 stops
STL11:36 pmLambert-St Louis
$1,179
Find similar
LATAM Airlines
Dec 19
STL2:11 pmLambert-St Louis
15h 09m
1 stop
GIG8:20 amRio de Janeiro–Galeão Intl
Dec 21
GIG9:30 pmRio de Janeiro–Galeão Intl
14h 28m
1 stop
STL8:58 amLambert-St Louis
$1,462
Find similar
LATAM Airlines
Dec 23
STL3:41 pmLambert-St Louis
35h 44m
2 stops
GIG6:25 amRio de Janeiro–Galeão Intl
Jan 1
GIG3:10 pmRio de Janeiro–Galeão Intl
20h 48m
2 stops
STL8:58 amLambert-St Louis
$1,527
Find similar

Air Canada flights from St. Louis to Rio de Janeiro–Galeão Intl Airport

Our best Air Canada deals on St. Louis to Rio de Janeiro–Galeão Intl Airport flight tickets
Air Canada
Mar 7
STL4:05 pmLambert-St Louis
17h 00m
1 stop
GIG12:05 pmRio de Janeiro–Galeão Intl
Mar 11
GIG8:00 pmRio de Janeiro–Galeão Intl
21h 29m
1 stop
STL3:29 pmLambert-St Louis
$769
Find similar
Air Canada
Mar 7
STL4:05 pmLambert-St Louis
17h 00m
1 stop
GIG12:05 pmRio de Janeiro–Galeão Intl
Mar 11
GIG3:55 pmRio de Janeiro–Galeão Intl
25h 34m
2 stops
STL3:29 pmLambert-St Louis
$775
Find similar
Air Canada
May 5
STL1:00 pmLambert-St Louis
23h 05m
2 stops
GIG2:05 pmRio de Janeiro–Galeão Intl
May 12
GIG2:50 pmRio de Janeiro–Galeão Intl
23h 16m
2 stops
STL12:06 pmLambert-St Louis
$778
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Rio de Janeiro–Galeão Intl Airport 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 15, 2025.
Use the filters below to find and compare flights from St. Louis to Rio de Janeiro–Galeão Intl Airport 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

Wed 3/11

8:00 pm-3:29 pm

1 stop21h 29m

$769

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

Wed 3/11

3:55 pm-3:29 pm

2 stops25h 34m

$775

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Tue 5/5

1:00 pm-2:05 pm

2 stops23h 05m

Rio de Janeiro–Galeão Intl

Tue 5/12

2:50 pm-12:06 pm

2 stops23h 16m

$778

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Tue 2/24

4:05 pm-12:05 pm

1 stop17h 00m

Rio de Janeiro–Galeão Intl

Tue 3/10

3:55 pm-3:29 pm

2 stops25h 34m

$848

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Tue 5/12

1:00 pm-2:05 pm

2 stops23h 05m

Rio de Janeiro–Galeão Intl

Thu 5/21

2:50 pm-8:05 pm

2 stops31h 15m

$850

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Thu 5/14

2:20 pm-2:05 pm

2 stops21h 45m

Rio de Janeiro–Galeão Intl

Thu 5/21

2:50 pm-8:05 pm

2 stops31h 15m

$853

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Tue 1/27

8:05 am-8:00 am

2 stops20h 55m

Rio de Janeiro–Galeão Intl

Mon 2/2

1:40 am-10:36 am

2 stops35h 56m

$879

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Tue 1/27

4:05 pm-12:05 pm

1 stop17h 00m

Rio de Janeiro–Galeão Intl

Tue 2/3

8:45 pm-3:29 pm

2 stops45h 44m

$963

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Tue 5/26

1:00 pm-9:25 am

2 stops42h 25m

Rio de Janeiro–Galeão Intl

Sat 6/6

3:15 pm-8:05 pm

2 stops30h 50m

$988

St. LouisRio de Janeiro

STL - GIG

STLGIG

Lambert-St Louis

Sat 3/7

4:05 pm-3:15 pm

2 stops20h 10m

Rio de Janeiro–Galeão Intl

Wed 3/11

3:55 pm-3:29 pm

2 stops25h 34m

$996

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–Galeão Intl Airport

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 day to depart on your flight to Rio de Janeiro–Galeão Intl Airport?

Our data shows that Thursday is the least expensive day to fly to Rio de Janeiro–Galeão Intl Airport. Tickets to fly out on this day can be as low as $847. The most expensive day to fly to Rio de Janeiro–Galeão Intl Airport is Friday, with ticket prices averaging around $1,569.

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

Flying to Rio de Janeiro–Galeão Intl Airport from St. Louis in the morning is the least expensive time of day to depart. momondo users have found prices as low as $872 when looking at flights departing in the morning. Try not to purchase tickets in the afternoon because they tend to be around $1,050. Of course, these prices can vary depending on the time of year and what airport you fly to.

When to book flights from St. Louis to Rio de Janeiro–Galeão Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Rio de Janeiro–Galeão Intl Airport 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–Galeão Intl Airport (STL to GIG) flight deals and tips

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

Fastest flight time

17h 00m

Direct flights

None
The fastest flight from St. Louis to Rio de Janeiro–Galeão Intl Airport takes 17h 00m
There are no direct flights from St. Louis to Rio de Janeiro–Galeão Intl Airport. There are no popular flight routes from St. Louis to Rio de Janeiro–Galeão Intl Airport.
Search flight deals

  • How far is Lambert-St Louis to Rio de Janeiro–Galeão Intl by plane?

    A flight from Lambert-St Louis to Rio de Janeiro–Galeão Intl will travel around 5216.2 mi. 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–Galeão Intl Airport?

    Prices for flights from Lambert-St Louis Airport to Rio de Janeiro–Galeão Intl Airport refresh daily.

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

  • How old do you have to be to fly from Lambert-St Louis Airport to Rio de Janeiro–Galeão Intl 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 Lambert-St Louis Airport to Rio de Janeiro–Galeão Intl Airport.

  • What documentation or ID do you need to fly to Rio de Janeiro–Galeão Intl Airport?

    The necessary travel and health documents for your Rio de Janeiro–Galeão Intl Airport 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–Galeão Intl Airport?

Best airlines flying from St. Louis to Rio de Janeiro–Galeão Intl Airport

Compare and see reviews for airlines that fly from St. Louis to Rio de Janeiro–Galeão Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $711Free CancellationRating
7.9
8,008 reviews
Search Delta flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from St. Louis to Rio de Janeiro. Millions of users trust and use momondo every year so you are in good hands.

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

momondo does allow users to show only those flights to Rio de Janeiro from St. Louis which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Rio de Janeiro from St. Louis.

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

Price alerts on flights to Rio de Janeiro from St. Louis 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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