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$351+ Cheap flights from Santos Dumont, Brazil (SDU) to Illinois

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 8/16. Fares are subject to change and may not be available on all flights or dates of travel.
SDU — ORD
May 5 — May 121
Mon 5/5
Mon 5/12
1 adult, Economy
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Cheap flight deals from Santos Dumont to Illinois

Keep the following information in mind while searching for Santos Dumont to Illinois flight deals. Data was last updated April 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$680
(Mytrip)

One-way from

$351
(Trip.com)

Popular in

January

Cheapest in

February

Average price

$781
Provider with most accurate pricing for Rio de Janeiro (RIO)-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Rio de Janeiro (RIO)-Chicago (CHI) flights.
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From Rio de Janeiro Santos Dumont to Illinois
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One-way flight from Rio de Janeiro Santos Dumont to Illinois
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Highest demand for flights based on searches. 6% potential increase in price ($53 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Santos Dumont to Illinois

Cheapest flights from Santos Dumont to Illinois
Explore the most affordable flight options available from Santos Dumont to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.

This Mytrip deal was found by Cheapflights users on 4/28. 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.
Mon 5/267:55 amSDU - ORD
3 stops40h 10mMultiple Airlines
Sun 6/84:35 pmORD - SDU
2 stops17h 50mMultiple Airlines
Deal found 4/28$680
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.
Tue 5/201:05 pmSDU - ORD
1 stop19h 40mUnited Airlines
Tue 5/279:20 pmORD - SDU
1 stop16h 30mUnited Airlines
Deal found 4/29$772
This KAYAK deal was found by Cheapflights users on 4/28. 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.
Wed 8/136:00 amSDU - ORD
2 stops18h 41mGOL
Sat 8/233:05 pmORD - SDU
2 stops17h 35mGOL
Deal found 4/28$791
This Delta deal was found by Cheapflights users on 4/28. 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 8/68:20 pmSDU - ORD
2 stops18h 29mDelta
Thu 12/410:05 amORD - SDU
2 stops20h 00mDelta
Deal found 4/28$794
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/77:55 amSDU - ORD
2 stops32h 52mAir Canada
Wed 6/113:35 pmORD - SDU
2 stops22h 15mAir Canada
Deal found 4/29$837

Cheapflights Fare Finder

Customize your flight search to find flights from Santos Dumont to Illinois 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 April 30, 2025.
Use the filters below to find and compare flights from Rio de Janeiro Santos Dumont Airport to Illinois that are best for you.

Fly from

Santos Dumont

Fly to

Illinois

Route

Depart

Return

Price

Rio de JaneiroChicago

SDU - ORD

SDUORD

Rio de Janeiro Santos Dumont

Mon 5/26

7:55 am-10:05 pm

3 stops40h 10m

Chicago O'Hare Intl

Sun 6/8

4:35 pm-12:25 pm

2 stops17h 50m

$680

Rio de JaneiroChicago

SDU - ORD

SDUORD

Rio de Janeiro Santos Dumont

Tue 5/20

1:05 pm-6:45 am

1 stop19h 40m

Chicago O'Hare Intl

Tue 5/27

9:20 pm-3:50 pm

1 stop16h 30m

$772

Rio de JaneiroChicago

SDU - ORD

SDUORD

Rio de Janeiro Santos Dumont

Wed 8/13

6:00 am-10:41 pm

2 stops18h 41m

Chicago O'Hare Intl

Sat 8/23

3:05 pm-10:40 am

2 stops17h 35m

$791

Rio de JaneiroChicago

SDU - ORD

SDUORD

Rio de Janeiro Santos Dumont

Wed 8/6

8:20 pm-12:49 pm

2 stops18h 29m

Chicago O'Hare Intl

Thu 12/4

10:05 am-9:05 am

2 stops20h 00m

$794

Rio de JaneiroChicago

SDU - ORD

SDUORD

Rio de Janeiro Santos Dumont

Wed 5/21

7:55 am-9:52 am

2 stops27h 57m

Chicago O'Hare Intl

Wed 6/25

8:40 am-3:50 pm

2 stops29h 10m

$842

Rio de JaneiroChicago

SDU - ORD

SDUORD

Rio de Janeiro Santos Dumont

Sat 8/16

1:00 pm-1:15 pm

2 stops26h 15m

$351

Rio de JaneiroChicago

SDU - ORD

SDUORD

Rio de Janeiro Santos Dumont

Wed 6/25

8:20 pm-12:47 pm

2 stops18h 27m

$363

Rio de JaneiroChicago

SDU - ORD

SDUORD

Rio de Janeiro Santos Dumont

Sat 8/16

1:00 pm-6:45 am

1 stop19h 45m

$423

Rio de JaneiroChicago

SDU - ORD

SDUORD

Rio de Janeiro Santos Dumont

Sat 8/9

5:40 pm-1:15 pm

2 stops45h 35m

$454

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Best time to book a flight from Santos Dumont to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Santos Dumont 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 Rio de Janeiro Santos Dumont Airport to Illinois

Rainfall in Illinois by month

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

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

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

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated April 30, 2025.
To help decide which airline to fly from Rio de Janeiro to Illinois, see what other customers have to say about Delta, LATAM Airlines and United Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,936 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,936 reviews
Delta
8.0
Very good
7,936 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
LATAM Airlines
7.5
Good
1,767 reviews
Delta
8.0
Very good
7,936 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,936 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
GOL
7.3
Good
1,068 reviews
Delta
8.0
Very good
7,936 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air Canada
7.0
Good
9,242 reviews
Delta
8.0
Very good
7,936 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Santos Dumont to Illinois. 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 Rio de Janeiro Santos Dumont Airport to Illinois one-way?

    For one-way options, check prices for LATAM Airlines. According to our data, you can fly for as low as $363. Users have also found prices from $423 and $454 on United Airlines and GOL, respectively.

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

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

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

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

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

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

  • What is the cheapest month to book a flight from Rio de Janeiro Santos Dumont Airport to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Rio de Janeiro Santos Dumont Airport to Illinois (average of $245). Flying from Rio de Janeiro Santos Dumont Airport to Illinois in March is currently the most expensive (average of $321). 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.

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Alternative routes for Santos Dumont to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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