$492+ Cheap flights from St. Louis (STL) to Rio de Janeiro, Brazil (RIO)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/15. Fares are subject to change and may not be available on all flights or dates of travel.
STL — RIO
Oct 16 — Oct 231
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Rio de Janeiro with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from St. Louis to Rio de Janeiro
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Cheapest flights from St. Louis to Rio de JaneiroExplore the most affordable flight options available from St. Louis to Rio de Janeiro. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2026.
Explore the most affordable flight options available from St. Louis to Rio de Janeiro. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2026.
This United Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1411:10 am -
1 stop19h 05m
Wed 10/219:05 pm -
1 stop15h 05m
Deal found 9/13![United Airlines logo]()
$1,123
This United Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1311:10 am -
1 stop19h 05m
Wed 10/219:05 pm -
2 stops26h 16m
Deal found 9/13![United Airlines logo]()
$1,127
This United Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/113:11 pm -
2 stops39h 04m
Wed 10/219:05 pm -
1 stop19h 05m
Deal found 9/13![United Airlines logo]()
$1,145
This LATAM Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1312:29 pm -
2 stops25h 21m
Wed 11/189:05 pm -
1 stop14h 50m
Deal found 9/13![LATAM Airlines logo]()
$1,146
This LATAM Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3112:00 pm -
1 stop20h 15m
Wed 11/49:05 pm -
1 stop22h 23m
Deal found 9/15![LATAM Airlines logo]()
$1,153
This Delta deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/127:20 pm -
1 stop12h 55m
Mon 10/199:00 pm -
1 stop14h 09m
Deal found 9/14![Delta logo]()
$1,180
This Delta deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3012:00 pm -
2 stops16h 25m
Fri 11/69:05 pm -
1 stop15h 37m
Deal found 9/14![Delta logo]()
$1,183
This American Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/79:27 am -
2 stops20h 53m
Mon 10/1910:10 pm -
2 stops22h 06m
Deal found 9/16![American Airlines logo]()
$1,184
This LATAM Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1510:14 am -
2 stops20h 41m
Tue 10/207:05 am -
2 stops28h 04m
Deal found 9/13![LATAM Airlines logo]()
$1,187
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/129:27 am -
2 stops20h 53m
Mon 10/1910:10 pm -
2 stops20h 58m
Deal found 9/14![American Airlines logo]()
$1,194
This Air Canada deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1412:10 pm -
2 stops23h 05m
Thu 10/2210:05 am -
2 stops29h 55m
Deal found 9/13![Air Canada logo]()
$1,255
This Mytrip deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/34:05 pm -
3 stops26h 55m
Wed 12/910:05 am -
2 stops32h 21m
Deal found 9/12![Multiple Airlines logo]()
$1,274
Best flights from St. Louis to Rio de JaneiroDiscover carefully curated flight deals from St. Louis to Rio de Janeiro that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 16, 2026.
Discover carefully curated flight deals from St. Louis to Rio de Janeiro that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 16, 2026.
This Booking.com deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/14:05 pm -
2 stops19h 45m
Wed 3/109:00 pm -
1 stop21h 26m
Deal found 9/13![Air Canada logo]()
$1,031
This United Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/272:55 pm -
1 stop16h 40m
Tue 11/39:55 pm -
1 stop15h 07m
Deal found 9/12![United Airlines logo]()
$1,123
This LATAM Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/275:35 pm -
1 stop14h 40m
Tue 11/37:10 am -
2 stops17h 49m
Deal found 9/12![LATAM Airlines logo]()
$1,123
This Delta deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2710:14 am -
2 stops18h 11m
Tue 11/35:30 pm -
2 stops18h 47m
Deal found 9/12![Delta logo]()
$1,123
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/305:00 am -
1 stop23h 00m
Fri 11/610:15 pm -
1 stop22h 10m
Deal found 9/14![American Airlines logo]()
$1,183
This GOL deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure GOL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/293:43 pm -
2 stops16h 52m
Mon 2/810:30 pm -
1 stop17h 03m
Deal found 9/15![GOL logo]()
$1,193
This Air Canada deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/14:05 pm -
2 stops18h 05m
Wed 3/1010:05 am -
2 stops32h 21m
Deal found 9/13![Multiple Airlines logo]()
$1,318
This United Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/281:08 pm -
2 stops18h 27m
Wed 11/49:55 pm -
1 stop15h 07m
Deal found 9/13![United Airlines logo]()
$1,123
This Delta deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/127:20 pm -
1 stop12h 55m
Mon 10/199:00 pm -
1 stop14h 09m
Deal found 9/14![Delta logo]()
$1,180
This American Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/79:27 am -
2 stops20h 53m
Mon 10/1910:10 pm -
2 stops22h 06m
Deal found 9/12![American Airlines logo]()
$1,184
This Delta deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/306:00 am -
2 stops22h 25m
Fri 11/65:30 pm -
2 stops19h 12m
Deal found 9/14![Delta logo]()
$1,183
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/123:11 pm -
2 stops20h 04m
Mon 10/196:55 pm -
2 stops19h 18m
Deal found 9/14![United Airlines logo]()
$1,323
This GOL deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure GOL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/310:38 am -
2 stops22h 47m
Wed 12/95:40 pm -
2 stops31h 07m
Deal found 9/12![GOL logo]()
$1,486
This United Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/275:20 pm -
2 stops40h 50m
Wed 3/310:05 am -
2 stops32h 36m
Deal found 9/11![United Airlines logo]()
$1,365
This United Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/78:35 am -
2 stops26h 40m
Mon 10/196:55 pm -
2 stops19h 18m
Deal found 9/12![United Airlines logo]()
$1,380
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/299:22 am -
2 stops24h 48m
Mon 2/87:15 pm -
2 stops21h 50m
Deal found 9/15![United Airlines logo]()
$1,383
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/33:12 pm -
2 stops17h 58m
Mon 10/56:55 pm -
2 stops17h 15m
Deal found 9/15![United Airlines logo]()
$1,474
Last-minute flights from St. Louis to Rio de JaneiroDiscover last-minute flight deals from St. Louis to Rio de Janeiro. Data last updated September 16, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Rio de Janeiro. Data last updated September 16, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/79:27 am -
2 stops20h 53m
Mon 10/1910:10 pm -
2 stops22h 06m
Deal found 9/16![American Airlines logo]()
$1,184
This United Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/113:11 pm -
2 stops39h 04m
Wed 10/219:05 pm -
1 stop19h 05m
Deal found 9/13![United Airlines logo]()
$1,145
This Delta deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/127:20 pm -
1 stop12h 55m
Mon 10/199:00 pm -
1 stop14h 09m
Deal found 9/14![Delta logo]()
$1,180
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/129:27 am -
2 stops20h 53m
Mon 10/1910:10 pm -
2 stops20h 58m
Deal found 9/14![American Airlines logo]()
$1,194
This United Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1311:10 am -
1 stop19h 05m
Wed 10/219:05 pm -
2 stops26h 16m
Deal found 9/13![United Airlines logo]()
$1,127
This KAYAK deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/133:12 pm -
2 stops16h 18m
Tue 10/206:55 pm -
2 stops16h 46m
Deal found 9/13![Multiple Airlines logo]()
$1,300
This United Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1411:10 am -
1 stop19h 05m
Wed 10/219:05 pm -
1 stop15h 05m
Deal found 9/13![United Airlines logo]()
$1,123
This Air Canada deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1412:10 pm -
2 stops23h 05m
Thu 10/2210:05 am -
2 stops29h 55m
Deal found 9/13![Air Canada logo]()
$1,255
This LATAM Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1510:14 am -
2 stops20h 41m
Tue 10/207:05 am -
2 stops28h 04m
Deal found 9/13![LATAM Airlines logo]()
$1,187
This Delta deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:28 pm -
1 stop12h 47m
Tue 10/207:05 am -
2 stops18h 49m
Deal found 9/13![Delta logo]()
$1,217
This Delta deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/306:00 am -
2 stops22h 25m
Fri 11/65:30 pm -
2 stops19h 12m
Deal found 9/14![Delta logo]()
$1,183
This LATAM Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3112:00 pm -
1 stop20h 15m
Wed 11/49:05 pm -
1 stop22h 23m
Deal found 9/15![LATAM Airlines logo]()
$1,153
One-way flights from St. Louis to Rio de JaneiroSearch for one-way flight options from St. Louis to Rio de Janeiro. Find affordable one-way fares based on user searches. Data last updated September 16, 2026.
Search for one-way flight options from St. Louis to Rio de Janeiro. Find affordable one-way fares based on user searches. Data last updated September 16, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/156:05 pm -
2 stops33h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Multiple Airlines logo]()
$492
This Kiwi.com deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/142:59 pm -
3 stops29h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Multiple Airlines logo]()
$531
This Kiwi.com deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/166:00 am -
2 stops43h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Multiple Airlines logo]()
$603
This FlightHub deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/146:15 pm -
2 stops26h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![GOL logo]()
$639
This GOL deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure GOL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/256:15 pm -
2 stops40h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![GOL logo]()
$662
This 123 Milhas deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 123 Milhas is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/256:15 pm -
2 stops37h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![GOL logo]()
$668
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/256:00 am -
2 stops24h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![United Airlines logo]()
$759
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/252:31 pm -
2 stops16h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Delta logo]()
$767
This LATAM Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/252:31 pm -
2 stops28h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![LATAM Airlines logo]()
$781
Find flight deals from St. Louis to Rio de Janeiro
Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Rio de Janeiro (RIO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 16, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $1,031 (Booking.com) |
One-way from | $492 (Kiwi.com) |
Popular in | July |
Cheapest in | April |
Average price | $1,455 |
Cheapflights 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, Cheapflights users made 7,457,451 searches. Data last updated September 16, 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
Cheapest round-trip
St. LouisRio de Janeiro
STL Lambert-St Louis - GIG Rio de Janeiro–Galeão Intl
STLGIG
Lambert-St Louis
Wed 12/16
6:00 am-4:00 am
2 stops43h 00m
Rio de Janeiro–Galeão Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$603
St. LouisRio de Janeiro
STL Lambert-St Louis - GIG Rio de Janeiro–Galeão Intl
STLGIG
Lambert-St Louis
Wed 11/25
6:15 pm-1:15 pm
2 stops40h 00m
Rio de Janeiro–Galeão Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$662
St. LouisRio de Janeiro
STL Lambert-St Louis - SDU Rio de Janeiro Santos Dumont
STLSDU
Lambert-St Louis
Wed 11/25
6:15 pm-10:25 am
2 stops37h 10m
Rio de Janeiro Santos Dumont
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$668
St. LouisRio de Janeiro
STL Lambert-St Louis - GIG Rio de Janeiro–Galeão Intl
STLGIG
Lambert-St Louis
Wed 11/25
6:00 am-9:35 am
2 stops24h 35m
Rio de Janeiro–Galeão Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$759
Quickest round-trip
St. LouisRio de Janeiro
STL Lambert-St Louis - GIG Rio de Janeiro–Galeão Intl
STLGIG
Lambert-St Louis
Wed 11/25
2:31 pm-9:50 am
2 stops16h 19m
Rio de Janeiro–Galeão Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$767
St. LouisRio de Janeiro
STL Lambert-St Louis - SDU Rio de Janeiro Santos Dumont
STLSDU
Lambert-St Louis
Wed 11/25
2:31 pm-10:00 pm
2 stops28h 29m
Rio de Janeiro Santos Dumont
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$781
St. LouisRio de Janeiro
STL Lambert-St Louis - GIG Rio de Janeiro–Galeão Intl
STLGIG
Lambert-St Louis
Tue 12/15
6:00 am-9:35 am
1 stop24h 35m
Rio de Janeiro–Galeão Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$924
St. LouisRio de Janeiro
STL Lambert-St Louis - GIG Rio de Janeiro–Galeão Intl
STLGIG
Lambert-St Louis
Wed 12/16
6:00 am-9:35 am
1 stop24h 35m
Rio de Janeiro–Galeão Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$943
St. LouisRio de Janeiro
STL Lambert-St Louis - GIG Rio de Janeiro–Galeão Intl
STLGIG
Lambert-St Louis
Mon 3/1
4:05 pm-2:50 pm
2 stops19h 45m
Rio de Janeiro–Galeão Intl
Wed 3/10
9:00 pm-3:26 pm
1 stop21h 26m
$1,031
St. LouisRio de Janeiro
STL Lambert-St Louis - GIG Rio de Janeiro–Galeão Intl
STLGIG
Lambert-St Louis
Tue 10/27
2:55 pm-9:35 am
1 stop16h 40m
Rio de Janeiro–Galeão Intl
Tue 11/3
9:55 pm-10:02 am
1 stop15h 07m
$1,123
Showing 1-10 of 25 resultsSorted by cheapest first
Compare providers for flights from St. Louis to Rio de Janeiro
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Rio de Janeiro in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on St. Louis-Rio de Janeiro flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on St. Louis-Rio de Janeiro flight deals on Cheapflights vs. Ovago >95% of the time. Price accuracy is based on data collected from St. Louis-Rio de Janeiro flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on St. Louis-Rio de Janeiro flights, Cheapflights users trust Ovago the most. Ovago has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Rio de Janeiro flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from St. Louis to Rio de Janeiro
Have a flexible travel schedule? Discover the best time to fly to Rio de Janeiro from St. Louis with our price prediction graph.
STL-RIO
STL-GIG
STL-SDU
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from St. Louis to Rio de Janeiro
STL-RIO
STL-GIG
STL-SDU
What is the cheapest month to book a flight from St. Louis to Rio de Janeiro?
Currently, April is the cheapest month in which you can book a flight from St. Louis to Rio de Janeiro (average of $778). Flying from St. Louis to Rio de Janeiro in December is currently the most expensive (average of $1,579). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Reviews of airlines servicing Rio de Janeiro
Get insights into the airlines that provide service to Rio de Janeiro. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Rio de Janeiro. Reviews last updated September 16, 2026.
See what other customers who have flown with LATAM Airlines and American Airlines from St. Louis to Rio de Janeiro have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
7.5
Entertainment
7.0
Food
6.7
Crew
8.0
Comfort
7.3
Overall
7.4
Reviews
1 / 20
8.0
ExcellentNoah,Aug 2026
JFK - GRU
Boarding
7.5
Entertainment
7.0
Food
6.7
Crew
8.0
Comfort
7.3
Overall
7.4
Reviews
1 / 20
8.0
ExcellentNoah,Aug 2026
JFK - GRU
Boarding
7.5
Entertainment
7.0
Food
6.7
Crew
8.0
Comfort
7.3
Overall
7.4
Reviews
1 / 20
8.0
ExcellentNoah,Aug 2026
JFK - GRU
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Rio de Janeiro. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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