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Santos Dumont

$312+ Cheap flights from Illinois to Santos Dumont, Brazil (SDU)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/2. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SDU
Nov 19 — Nov 261
Wed 11/19
Wed 11/26
1 adult, Economy
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Cheap flight deals from Illinois to Santos Dumont

Keep the following information in mind while searching for Illinois to Santos Dumont flight deals. Data was last updated October 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$636
(Gotogate)

One-way from

$312
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$804
Provider with most accurate pricing for Chicago (CHI)-Rio de Janeiro (RIO) flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Rio de Janeiro (RIO) flights.
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From Illinois to Rio de Janeiro Santos Dumont
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One-way flight from Illinois to Rio de Janeiro Santos Dumont
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Highest demand for flights based on searches. 9% potential increase in price ($80 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Illinois to Santos Dumont

Cheapest flights from Illinois to Santos Dumont
Explore the most affordable flight options available from Illinois to Santos Dumont. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 20, 2025.

This Gotogate deal was found by Cheapflights users on 10/20. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/48:00 amORD - SDU
2 stops29h 45mAir Canada
Thu 11/201:45 pmSDU - ORD
2 stops32h 45mAir Canada
Deal found 10/20$636
This United Airlines deal was found by Cheapflights users on 10/19. 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 10/266:50 pmORD - SDU
1 stop19h 50mUnited Airlines
Fri 10/311:45 pmSDU - ORD
1 stop19h 15mUnited Airlines
Deal found 10/19$663
This United Airlines deal was found by Cheapflights users on 10/20. 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.
Thu 11/136:20 pmORD - SDU
2 stops19h 20mUnited Airlines
Tue 11/251:45 pmSDU - ORD
1 stop18h 45mUnited Airlines
Deal found 10/20$664
This United Airlines deal was found by Cheapflights users on 10/20. 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.
Thu 11/132:39 pmORD - SDU
2 stops23h 01mUnited Airlines
Sat 11/225:30 pmSDU - ORD
2 stops19h 18mUnited Airlines
Deal found 10/20$669
This United Airlines deal was found by Cheapflights users on 10/18. 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 11/35:50 pmORD - SDU
1 stop19h 55mUnited Airlines
Fri 11/71:45 pmSDU - ORD
2 stops23h 01mUnited Airlines
Deal found 10/18$673
This Priceline deal was found by Cheapflights users on 10/20. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/285:23 amORD - SDU
2 stops28h 57mLATAM Airlines
Wed 12/32:00 pmSDU - ORD
2 stops22h 56mLATAM Airlines
Deal found 10/20$699
This Mytrip deal was found by Cheapflights users on 10/20. 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.
Sat 12/612:09 pmORD - SDU
2 stops19h 36mMultiple Airlines
Thu 12/119:00 pmSDU - ORD
3 stops27h 19mMultiple Airlines
Deal found 10/20$709
This United Airlines deal was found by Cheapflights users on 10/18. 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 12/25:50 pmORD - SDU
1 stop19h 50mUnited Airlines
Tue 12/91:45 pmSDU - ORD
2 stops23h 17mUnited Airlines
Deal found 10/18$725
This Mytrip deal was found by Cheapflights users on 10/18. 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.
Tue 12/210:12 amORD - SDU
3 stops25h 18mMultiple Airlines
Tue 12/95:25 pmSDU - ORD
2 stops20h 49mMultiple Airlines
Deal found 10/18$731
This Mytrip deal was found by Cheapflights users on 10/18. 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.
Sat 10/257:15 pmSTL - SDU
2 stops25h 10mMultiple Airlines
Sat 11/15:30 pmSDU - STL
3 stops26h 46mMultiple Airlines
Deal found 10/18$867
This Air Canada deal was found by Cheapflights users on 10/20. 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.
Tue 11/114:05 pmSTL - SDU
2 stops21h 40mAir Canada
Tue 11/181:45 pmSDU - STL
2 stops28h 44mAir Canada
Deal found 10/20$1,016
This Trip.com deal was found by Cheapflights users on 10/18. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/23:30 pmSTL - SDU
2 stops18h 35mMultiple Airlines
Tue 12/96:20 amSDU - STL
2 stops19h 13mMultiple Airlines
Deal found 10/18$1,033

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Santos Dumont 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 2,558,603 searches. Data last updated October 20, 2025.
Use the filters below to find and compare flights from Illinois to Rio de Janeiro Santos Dumont Airport that are best for you.

Fly from

Illinois

Fly to

Santos Dumont

Route

Depart

Return

Price

ChicagoRio de Janeiro

ORD - SDU

ORDSDU

Chicago O'Hare Intl

Sun 10/26

6:50 pm-4:40 pm

1 stop19h 50m

Rio de Janeiro Santos Dumont

Fri 10/31

1:45 pm-7:00 am

1 stop19h 15m

$663

ChicagoRio de Janeiro

ORD - SDU

ORDSDU

Chicago O'Hare Intl

Tue 11/4

5:50 pm-4:45 pm

1 stop19h 55m

Rio de Janeiro Santos Dumont

Thu 11/20

1:45 pm-5:30 am

1 stop18h 45m

$663

ChicagoRio de Janeiro

ORD - SDU

ORDSDU

Chicago O'Hare Intl

Mon 11/17

6:20 pm-4:45 pm

2 stops19h 25m

Rio de Janeiro Santos Dumont

Tue 11/25

1:45 pm-5:30 am

1 stop18h 45m

$664

ChicagoRio de Janeiro

ORD - SDU

ORDSDU

Chicago O'Hare Intl

Mon 10/27

2:21 pm-4:45 pm

2 stops24h 24m

Rio de Janeiro Santos Dumont

Wed 11/5

1:45 pm-5:30 am

1 stop18h 45m

$667

ChicagoRio de Janeiro

ORD - SDU

ORDSDU

Chicago O'Hare Intl

Mon 11/17

6:20 pm-4:45 pm

2 stops19h 25m

Rio de Janeiro Santos Dumont

Sat 11/22

5:30 pm-11:48 am

2 stops21h 18m

$669

ChicagoRio de Janeiro

ORD - SDU

ORDSDU

Chicago O'Hare Intl

Mon 11/3

5:50 pm-4:45 pm

1 stop19h 55m

Rio de Janeiro Santos Dumont

Fri 11/7

1:45 pm-9:46 am

2 stops23h 01m

$673

ChicagoRio de Janeiro

ORD - SDU

ORDSDU

Chicago O'Hare Intl

Fri 10/31

6:20 pm-11:10 am

2 stops38h 50m

Rio de Janeiro Santos Dumont

Mon 11/3

1:45 pm-9:05 am

2 stops22h 20m

$677

ChicagoRio de Janeiro

ORD - SDU

ORDSDU

Chicago O'Hare Intl

Mon 11/17

6:20 pm-4:45 pm

2 stops19h 25m

Rio de Janeiro Santos Dumont

Mon 11/24

1:45 pm-9:46 am

2 stops23h 01m

$677

ChicagoRio de Janeiro

ORD - SDU

ORDSDU

Chicago O'Hare Intl

Tue 12/2

5:50 pm-4:40 pm

1 stop19h 50m

Rio de Janeiro Santos Dumont

Tue 12/9

1:45 pm-10:02 am

2 stops23h 17m

$725

ChicagoRio de Janeiro

ORD - SDU

ORDSDU

Chicago O'Hare Intl

Tue 12/2

10:12 am-2:30 pm

3 stops25h 18m

Rio de Janeiro Santos Dumont

Tue 12/9

5:25 pm-11:14 am

2 stops20h 49m

$731

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/20

Showing 1-10 of 55 results
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Best time to book a flight from Illinois to Santos Dumont

Have a flexible travel schedule? Discover the best time to fly to Santos Dumont from Illinois with our price prediction graph.
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 Illinois to Rio de Janeiro Santos Dumont Airport
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Santos Dumont. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Illinois to Rio de Janeiro Santos Dumont Airport?

    There are many flights that can get you from Illinois to Rio de Janeiro Santos Dumont Airport in 19h 50m. Fly via United Airlines or Air Canada to get the fastest option. The distance from Illinois to Rio de Janeiro Santos Dumont Airport is about 5312 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most popular routes from Illinois to Rio de Janeiro Santos Dumont Airport?

    While some choose either Chicago Midway - Rio de Janeiro Santos Dumont or Lambert-St Louis - Rio de Janeiro Santos Dumont, Chicago O'Hare Intl - Rio de Janeiro Santos Dumont is the most popular route from Illinois to Rio de Janeiro Santos Dumont Airport.

  • Can I find deals for flights from Illinois to Santos Dumont that include hotel bookings?

    Yes. In addition to deals on Illinois to Santos Dumont flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Santos Dumont?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Santos Dumont.

  • Can I find deals for business class flights from Illinois to Santos Dumont?

    Yes. Cheapflights offers flight deals from Illinois to Santos Dumont by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for Illinois to Santos Dumont

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Rio de Janeiro–Galeão Intl flights
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Philadelphia to Santos Dumont flights
Tampa to Rio de Janeiro–Galeão Intl flights

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