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Santos Dumont

$327+ 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 6/19. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SDU
May 6 — May 131
Tue 5/6
Tue 5/13
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 May 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$696
(Mytrip)

One-way from

$327
(Mytrip)

Popular in

December

Cheapest in

October

Average price

$868
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. 7% potential increase in price ($65 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in May 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 May 1, 2025.

This Mytrip deal was found by Cheapflights users on 4/30. 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.
Wed 6/43:35 pmORD - SDU
2 stops22h 15mAir Canada
Wed 6/117:55 amSDU - ORD
2 stops27h 57mAir Canada
Deal found 4/30$696
This Mytrip deal was found by Cheapflights users on 4/30. 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 8/261:03 pmORD - SDU
2 stops21h 22mMultiple Airlines
Wed 9/36:40 pmSDU - ORD
2 stops24h 57mMultiple Airlines
Deal found 4/30$703
This Gurufare deal was found by Cheapflights users on 4/30. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/152:25 pmORD - SDU
2 stops24h 25mGOL
Sun 10/196:00 amSDU - ORD
2 stops17h 11mGOL
Deal found 4/30$745
This United Airlines deal was found by Cheapflights users on 4/29. 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 5/309:20 pmORD - SDU
1 stop16h 30mUnited Airlines
Fri 6/61:00 pmSDU - ORD
1 stop19h 45mUnited Airlines
Deal found 4/29$817
This Gotogate deal was found by Cheapflights users on 4/30. 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 5/207:30 amSTL - SDU
2 stops30h 20mAir Canada
Sat 5/311:05 pmSDU - STL
2 stops25h 31mAir Canada
Deal found 4/30$856
This Cocha deal was found by Cheapflights users on 4/29. 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 Cocha is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1312:44 pmMDW - SDU
2 stops23h 06mLATAM Airlines
Fri 6/208:20 pmSDU - MDW
2 stops27h 25mLATAM Airlines
Deal found 4/29$873
This Priceline deal was found by Cheapflights users on 4/30. 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.
Thu 10/2311:00 amORD - SDU
2 stops20h 35mLATAM Airlines
Sat 11/18:20 pmSDU - ORD
2 stops19h 58mLATAM Airlines
Deal found 4/30$883
This Mytrip deal was found by Cheapflights users on 4/29. 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.
Sun 6/156:12 pmSTL - SDU
3 stops38h 28mMultiple Airlines
Tue 6/171:00 pmSDU - STL
2 stops25h 36mMultiple Airlines
Deal found 4/29$921
This KAYAK deal was found by Cheapflights users on 4/29. 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.
Thu 10/233:30 pmSTL - SDU
2 stops20h 30mLATAM Airlines
Mon 10/278:20 pmSDU - STL
2 stops16h 20mLATAM Airlines
Deal found 4/29$1,125
This United Airlines deal was found by Cheapflights users on 4/29. 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 7/308:00 amSTL - SDU
2 stops29h 50mUnited Airlines
Wed 8/61:00 pmSDU - STL
2 stops28h 47mUnited Airlines
Deal found 4/29$1,182
This FlightHub deal was found by Cheapflights users on 4/29. 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.
Tue 10/1410:35 amORD - SDU
2 stops23h 50mAzul
Sat 10/183:15 pmSDU - ORD
2 stops29h 20mAzul
Deal found 4/29$1,410
This Delta deal was found by Cheapflights users on 4/29. 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 6/1312:44 pmMDW - SDU
2 stops23h 06mDelta
Fri 6/208:20 pmSDU - MDW
2 stops17h 39mDelta
Deal found 4/29$2,952

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 May 1, 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

Wed 6/4

3:35 pm-3:50 pm

2 stops22h 15m

Rio de Janeiro Santos Dumont

Wed 6/11

7:55 am-9:52 am

2 stops27h 57m

$696

ChicagoRio de Janeiro

ORD - SDU

ORDSDU

Chicago O'Hare Intl

Tue 8/26

1:03 pm-12:25 pm

2 stops21h 22m

Rio de Janeiro Santos Dumont

Wed 9/3

6:40 pm-5:37 pm

2 stops24h 57m

$703

ChicagoRio de Janeiro

ORD - SDU

ORDSDU

Chicago O'Hare Intl

Wed 10/15

2:25 pm-4:50 pm

2 stops24h 25m

Rio de Janeiro Santos Dumont

Sun 10/19

6:00 am-9:11 pm

2 stops17h 11m

$745

ChicagoRio de Janeiro

ORD - SDU

ORDSDU

Chicago O'Hare Intl

Fri 5/30

9:20 pm-3:50 pm

1 stop16h 30m

Rio de Janeiro Santos Dumont

Fri 6/6

1:00 pm-6:45 am

1 stop19h 45m

$817

St. LouisRio de Janeiro

STL - SDU

STLSDU

Lambert-St Louis

Tue 5/20

7:30 am-3:50 pm

2 stops30h 20m

Rio de Janeiro Santos Dumont

Sat 5/31

1:05 pm-12:36 pm

2 stops25h 31m

$856

ChicagoRio de Janeiro

MDW - SDU

MDWSDU

Chicago Midway

Fri 6/13

12:44 pm-1:50 pm

2 stops23h 06m

Rio de Janeiro Santos Dumont

Fri 6/20

8:20 pm-9:45 pm

2 stops27h 25m

$873

ChicagoRio de Janeiro

ORD - SDU

ORDSDU

Chicago O'Hare Intl

Thu 10/23

11:00 am-9:35 am

2 stops20h 35m

Rio de Janeiro Santos Dumont

Sat 11/1

8:20 pm-2:18 pm

2 stops19h 58m

$883

St. LouisRio de Janeiro

STL - SDU

STLSDU

Lambert-St Louis

Sun 6/15

6:12 pm-10:40 am

3 stops38h 28m

Rio de Janeiro Santos Dumont

Tue 6/17

1:00 pm-12:36 pm

2 stops25h 36m

$921

St. LouisRio de Janeiro

STL - SDU

STLSDU

Lambert-St Louis

Thu 6/26

8:25 am-3:50 pm

2 stops29h 25m

Rio de Janeiro Santos Dumont

Sat 7/5

1:00 pm-3:47 pm

2 stops28h 47m

$1,402

ChicagoRio de Janeiro

ORD - SDU

ORDSDU

Chicago O'Hare Intl

Tue 10/14

10:35 am-12:25 pm

2 stops23h 50m

Rio de Janeiro Santos Dumont

Sun 10/19

1:05 pm-6:35 pm

2 stops31h 30m

$1,410

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 20 results
1
2

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

Rainfall in Santos Dumont by month

Plan your trip to Santos Dumont by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Rio de Janeiro Santos Dumont Airport ranges from 1.6 - 5.1 inches per month. January is typically the wettest month, when rainfall can reach 5.1 in. July is typically the driest time to visit Rio de Janeiro Santos Dumont Airport when rainfall is around 1.6 in.

Temperature in Santos Dumont by month

Plan your trip to Santos Dumont by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Rio de Janeiro Santos Dumont Airport, use this chart to help with planning. For those seeking warmer temperatures, February is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 69.8 F).

Reviews of airlines servicing Santos Dumont

Get insights into the airlines that provide service to Santos Dumont. 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 Santos Dumont. Reviews last updated May 1, 2025.
Read reviews from past customers who have flown Azul, Delta and LATAM Airlines from Illinois to Rio de Janeiro. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Azul
8.0
Very good
777 reviews

Boarding

8.1

Crew

8.6

Overall

8.0

Food

7.1

Entertainment

7.5

Comfort

8.0

Reviews

1 / 14
2.0
Mediocre

Mike,Feb 2025

NVT - LIS

Experience was terrible. Flight cancelled. Missed connection. Replace service with EuroAtlantic airlines. Awful seats, awful food.
Azul
8.0
Very good
777 reviews
Azul
8.0
Very good
777 reviews

Boarding

8.1

Crew

8.6

Overall

8.0

Food

7.1

Entertainment

7.5

Comfort

8.0

Reviews

1 / 14
2.0
Mediocre

Mike,Feb 2025

NVT - LIS

Experience was terrible. Flight cancelled. Missed connection. Replace service with EuroAtlantic airlines. Awful seats, awful food.
Delta
8.0
Very good
7,934 reviews
Azul
8.0
Very good
777 reviews

Boarding

8.1

Crew

8.6

Overall

8.0

Food

7.1

Entertainment

7.5

Comfort

8.0

Reviews

1 / 14
2.0
Mediocre

Mike,Feb 2025

NVT - LIS

Experience was terrible. Flight cancelled. Missed connection. Replace service with EuroAtlantic airlines. Awful seats, awful food.
LATAM Airlines
7.5
Good
1,767 reviews
Azul
8.0
Very good
777 reviews

Boarding

8.1

Crew

8.6

Overall

8.0

Food

7.1

Entertainment

7.5

Comfort

8.0

Reviews

1 / 14
2.0
Mediocre

Mike,Feb 2025

NVT - LIS

Experience was terrible. Flight cancelled. Missed connection. Replace service with EuroAtlantic airlines. Awful seats, awful food.
United Airlines
7.4
Good
8,696 reviews
Azul
8.0
Very good
777 reviews

Boarding

8.1

Crew

8.6

Overall

8.0

Food

7.1

Entertainment

7.5

Comfort

8.0

Reviews

1 / 14
2.0
Mediocre

Mike,Feb 2025

NVT - LIS

Experience was terrible. Flight cancelled. Missed connection. Replace service with EuroAtlantic airlines. Awful seats, awful food.
GOL
7.3
Good
1,068 reviews
Azul
8.0
Very good
777 reviews

Boarding

8.1

Crew

8.6

Overall

8.0

Food

7.1

Entertainment

7.5

Comfort

8.0

Reviews

1 / 14
2.0
Mediocre

Mike,Feb 2025

NVT - LIS

Experience was terrible. Flight cancelled. Missed connection. Replace service with EuroAtlantic airlines. Awful seats, awful food.

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.

  • What are the cheapest airlines to fly from Illinois to Rio de Janeiro Santos Dumont Airport one-way?

    To fly one-way, consider booking your trip with LATAM Airlines, which is currently one of the cheapest options available, starting at $442. United Airlines flights start at $449 while deals on Delta start at $507 one-way.

  • 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.
Miami to Rio de Janeiro–Galeão Intl flights
John F Kennedy Intl to Rio de Janeiro–Galeão Intl flights
John F Kennedy Intl to Santos Dumont flights
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