What is the cheapest flight from St. Louis to Rio de Janeiro Santos Dumont Airport?

In the last 3 days, the lowest price for a flight from St. Louis to Rio de Janeiro Santos Dumont Airport was $623 for a one-way ticket and $914 for a round-trip. Visit our flight page for the latest deals!>/a>

Do I need a passport to fly between St. Louis and Rio de Janeiro Santos Dumont?

Yes, you'll most likely have to show a valid passport before boarding the plane in St. Louis and on arrival in Rio de Janeiro Santos Dumont. Visit our flight page for the latest deals!>/a>

Which aircraft models fly most regularly from St. Louis to Rio de Janeiro Santos Dumont?

We unfortunately don’t have that data for this specific route.

How does KAYAK find such low prices on flights from St. Louis to Rio de Janeiro Santos Dumont?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Rio de Janeiro Santos Dumont. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Rio de Janeiro Santos Dumont?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Rio de Janeiro Santos Dumont from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from St. Louis to Rio de Janeiro Santos Dumont?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Rio de Janeiro Santos Dumont with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and SDU can sometimes prove cheaper using this method. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Rio de Janeiro Santos Dumont?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Rio de Janeiro Santos Dumont from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

$623 CHEAP FLIGHTS from St. Louis to Rio de Janeiro Santos Dumont (STL - SDU)

STL - SDU

KAYAK searches hundreds of travel sites at once for deals on flights to Rio de Janeiro Santos Dumont Airport

...and more

Travelers love KAYAK

41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheapest round-trip

$914

GOL

Sat 3/21Wed 3/25

STL - SDU • 2 stops

Cheapest one-way

$623

Multiple Airlines

Fri 12/26

STL - SDU • 3 stops

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Santos Dumont!

Flight Deals

Cheap Flights from St. Louis to Santos Dumont (STL-SDU)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Santos Dumont that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from St. Louis to Santos Dumont

Sat, Mar 21 - Wed, Mar 25

3:22 pm - 10:45 amSTL-SDU

17h 23m2 stops

6:00 am - 9:51 pmSDU-STL

17h 51m2 stops

$914GOL

Find Deal

Sat, Mar 7 - Wed, Mar 11

11:00 am - 10:45 amSTL-SDU

20h 45m2 stops

8:25 pm - 9:51 pmSDU-STL

27h 26m2 stops

$1,015GOL

Find Deal

Mon, Feb 23 - Mon, Mar 9

4:05 pm - 4:40 pmSTL-SDU

21h 35m2 stops

1:45 pm - 3:29 pmSDU-STL

27h 44m2 stops

$1,020Multiple Airlines

Find Deal

Thu, Apr 2 - Mon, Apr 6

3:22 pm - 2:20 pmSTL-SDU

20h 58m2 stops

8:45 pm - 9:35 pmSDU-STL

26h 50m2 stops

$1,041GOL

Find Deal

Thu, Feb 12 - Tue, Feb 17

11:19 am - 7:35 pmSTL-SDU

29h 16m2 stops

3:05 pm - 10:26 amSDU-STL

22h 21m2 stops

$1,091GOL

Find Deal

Thu, Jan 15 - Thu, Jan 22

6:02 pm - 10:25 pmSTL-SDU

25h 23m2 stops

8:25 pm - 11:59 pmSDU-STL

30h 34m2 stops

$1,719GOL

Find Deal

Thu, Apr 2 - Mon, Apr 6

4:05 pm - 1:10 pmSTL-SDU

19h 05m2 stops

5:15 pm - 3:24 pmSDU-STL

24h 09m3 stops

$1,807Multiple Airlines

Find Deal

Mon, Jan 5 - Sat, Jan 10

6:07 pm - 10:45 amSTL-SDU

37h 38m2 stops

6:00 am - 11:59 pmSDU-STL

20h 59m2 stops

$2,075GOL

Find Deal

Wed, Dec 31 - Mon, Jan 5

5:05 am - 10:45 amSTL-SDU

26h 40m2 stops

8:25 pm - 11:59 pmSDU-STL

30h 34m2 stops

$2,265GOL

Find Deal

Mon, Jan 5 - Sat, Jan 10

4:05 pm - 2:10 pmSTL-SDU

19h 05m2 stops

11:20 am - 3:29 pmSDU-STL

31h 09m3 stops

$3,751Multiple Airlines

Find Deal

Useful Info

Cheapest flight	$623

Flight from St. Louis to Rio de Janeiro Santos Dumont

When to book flights from St. Louis to Santos Dumont

Are your dates flexible? Find out the best times to travel from St. Louis to Santos Dumont based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

What is the cheapest flight from St. Louis to Rio de Janeiro Santos Dumont Airport?
In the last 3 days, the lowest price for a flight from St. Louis to Rio de Janeiro Santos Dumont Airport was $623 for a one-way ticket and $914 for a round-trip.
Do I need a passport to fly between St. Louis and Rio de Janeiro Santos Dumont?
Yes, you'll most likely have to show a valid passport before boarding the plane in St. Louis and on arrival in Rio de Janeiro Santos Dumont.
Which aircraft models fly most regularly from St. Louis to Rio de Janeiro Santos Dumont?
We unfortunately don’t have that data for this specific route.
How does KAYAK find such low prices on flights from St. Louis to Rio de Janeiro Santos Dumont?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Rio de Janeiro Santos Dumont.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Rio de Janeiro Santos Dumont?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Rio de Janeiro Santos Dumont from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from St. Louis to Rio de Janeiro Santos Dumont?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Rio de Janeiro Santos Dumont with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and SDU can sometimes prove cheaper using this method.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Rio de Janeiro Santos Dumont?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Rio de Janeiro Santos Dumont from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from St. Louis to Santos Dumont

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Information on your arrival and departure airports

St. Louis (STL)

Santos Dumont (SDU)

STL - SDU

$623 Find Cheap Flights from St. Louis to Rio de Janeiro Santos Dumont

KAYAK searches hundreds of travel sites at once for deals on flights to Rio de Janeiro Santos Dumont Airport

Everything you should know

Cheap Flights from St. Louis to Santos Dumont (STL-SDU)

Recent round-trip flight deals from St. Louis to Santos Dumont

Recent one-way flight deals from St. Louis to Santos Dumont

Recent last minute flight deals from St. Louis to Santos Dumont

Good to know

When to book flights from St. Louis to Santos Dumont

FAQs for booking St. Louis to Rio de Janeiro Santos Dumont flights

What is the cheapest flight from St. Louis to Rio de Janeiro Santos Dumont Airport?

In the last 3 days, the lowest price for a flight from St. Louis to Rio de Janeiro Santos Dumont Airport was $623 for a one-way ticket and $914 for a round-trip.

Do I need a passport to fly between St. Louis and Rio de Janeiro Santos Dumont?

Yes, you'll most likely have to show a valid passport before boarding the plane in St. Louis and on arrival in Rio de Janeiro Santos Dumont.

Which aircraft models fly most regularly from St. Louis to Rio de Janeiro Santos Dumont?

We unfortunately don’t have that data for this specific route.

How does KAYAK find such low prices on flights from St. Louis to Rio de Janeiro Santos Dumont?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Rio de Janeiro Santos Dumont.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Rio de Janeiro Santos Dumont?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Rio de Janeiro Santos Dumont from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from St. Louis to Rio de Janeiro Santos Dumont?

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Rio de Janeiro Santos Dumont?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Rio de Janeiro Santos Dumont from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from St. Louis to Santos Dumont

Information on your arrival and departure airports

Cabin class types available on flights to Santos Dumont

Complete your trip to Rio de Janeiro with a hotel stay or car rental

Find direct flights to and from St. Louis and Santos Dumont

Flights to other popular destinations

Flights from domestic origins to Santos Dumont

Choose which airport to fly into in Rio de Janeiro