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$276+ 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 2/11. Fares are subject to change and may not be available on all flights or dates of travel.
SDU — ORD
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap 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 January 29, 2026.

This LATAM Airlines deal was found by Cheapflights users on 1/27. 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 9/98:15 pm
SDU
-
ORD
2 stops18h 37m
LATAM Airlines
Tue 9/221:15 pm
ORD
-
SDU
2 stops21h 15m
LATAM Airlines
Deal found 1/27$525
This United Airlines deal was found by Cheapflights users on 1/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/151:45 pm
SDU
-
ORD
1 stop19h 00m
United Airlines
Thu 10/229:15 pm
ORD
-
SDU
1 stop17h 30m
United Airlines
Deal found 1/28$665
This United Airlines deal was found by Cheapflights users on 1/26. 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 3/41:45 pm
SDU
-
ORD
1 stop18h 45m
United Airlines
Sun 3/86:50 pm
ORD
-
SDU
1 stop19h 50m
United Airlines
Deal found 1/26$666
This Air Canada deal was found by Cheapflights users on 1/28. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/181:45 pm
SDU
-
ORD
2 stops32h 23m
Air Canada
Tue 5/266:12 pm
ORD
-
SDU
2 stops20h 33m
Air Canada
Deal found 1/28$677
This Air Canada deal was found by Cheapflights users on 1/27. 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 4/221:45 pm
SDU
-
ORD
2 stops23h 08m
Air Canada
Mon 4/274:15 pm
ORD
-
SDU
2 stops22h 30m
Air Canada
Deal found 1/27$681
This Air Canada deal was found by Cheapflights users on 1/28. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/181:45 pm
SDU
-
ORD
2 stops32h 23m
Air Canada
Thu 5/287:08 am
ORD
-
SDU
2 stops31h 37m
Air Canada
Deal found 1/28$682
This United Airlines deal was found by Cheapflights users on 1/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/271:50 pm
SDU
-
ORD
2 stops22h 44m
United Airlines
Sun 3/86:50 pm
ORD
-
SDU
1 stop19h 55m
United Airlines
Deal found 1/28$691

Find 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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$666
(United Airlines)

One-way from

$276
(FlightHub)

Popular in

July

Cheapest in

December

Average price

$649
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
Search Deals
One-way flight from Rio de Janeiro Santos Dumont to Illinois
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($119 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
Search Deals

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 January 29, 2026.
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

Wed 3/4

1:45 pm-5:30 am

1 stop18h 45m

Chicago O'Hare Intl

Sun 3/8

6:50 pm-4:40 pm

1 stop19h 50m

$666

Rio de JaneiroChicago

SDU - ORD

SDUORD

Rio de Janeiro Santos Dumont

Fri 2/27

1:50 pm-5:30 am

1 stop18h 40m

Chicago O'Hare Intl

Sun 3/8

6:50 pm-4:45 pm

1 stop19h 55m

$686

Rio de JaneiroChicago

SDU - ORD

SDUORD

Rio de Janeiro Santos Dumont

Fri 5/22

1:45 pm-6:45 am

1 stop19h 00m

Chicago O'Hare Intl

Mon 5/25

9:15 pm-4:45 pm

1 stop17h 30m

$745

Rio de JaneiroChicago

SDU - ORD

SDUORD

Rio de Janeiro Santos Dumont

Wed 2/11

2:00 pm-1:41 pm

2 stops26h 41m

$276

Rio de JaneiroChicago

SDU - ORD

SDUORD

Rio de Janeiro Santos Dumont

Sun 3/29

9:15 am-1:27 pm

2 stops30h 12m

$309

Rio de JaneiroChicago

SDU - ORD

SDUORD

Rio de Janeiro Santos Dumont

Wed 3/11

1:50 pm-7:00 am

1 stop19h 10m

$346

Rio de JaneiroChicago

SDU - ORD

SDUORD

Rio de Janeiro Santos Dumont

Thu 3/12

1:50 pm-7:00 am

1 stop19h 10m

$354

Rio de JaneiroChicago

SDU - ORD

SDUORD

Rio de Janeiro Santos Dumont

Thu 3/12

1:50 pm-7:00 am

1 stop19h 10m

$356

Rio de JaneiroChicago

SDU - ORD

SDUORD

Rio de Janeiro Santos Dumont

Fri 3/13

1:50 pm-7:00 am

1 stop19h 10m

$356

Rio de JaneiroChicago

SDU - ORD

SDUORD

Rio de Janeiro Santos Dumont

Thu 5/7

8:15 am-11:40 pm

2 stops17h 25m

$372

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

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
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 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.

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

    For as low as $666, United Airlines can have you in Illinois from Rio de Janeiro Santos Dumont Airport in 18h 45m. Rio de Janeiro Santos Dumont Airport and Illinois are separated by a distance of 5312 mi.

  • 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.

See more FAQs

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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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