Sao Paulo

$203+ Cheap flights from Illinois to Sao Paulo, Brazil (SAO)

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 11/30. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SAO
Oct 15 — Oct 221
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Cheap flight deals from Illinois to Sao Paulo

Keep the following information in mind while searching for Illinois to Sao Paulo flight deals. Data was last updated September 15, 2025.

Round-trip from

$435
(United Airlines)

One-way from

$203
(Arajet)

Popular in

December

Cheapest in

January

Average price

$1,097

Good round-trip deal

$844 or less

Good one-way deal

$345 or less
From Illinois to Sao Paulo (SAO)
One-way flight from Illinois to Sao Paulo (SAO)
Highest demand for flights based on searches. 6% potential increase in price ($63 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($27 potential savings vs. average RT price).
Average for round-trip flights in September 2025
Price to beat on a round-trip flight from Illinois to Sao Paulo (SAO).
Price to beat on a one-way flight from Illinois to Sao Paulo (SAO).

Find flight deals from Illinois to Sao Paulo

Cheapest flights from Illinois to Sao Paulo
Explore the most affordable flight options available from Illinois to Sao Paulo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This Copa 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/268:02 amORD - GRU
1 stop14h 28mCopa Airlines
Wed 10/13:10 amGRU - ORD
1 stop23h 11mCopa Airlines
Deal found 9/15$408
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.
Thu 10/306:50 pmORD - GRU
Nonstop10h 25mUnited Airlines
Tue 11/259:45 pmGRU - ORD
Nonstop10h 45mUnited Airlines
Deal found 9/15$435
This Copa 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/168:02 amORD - GRU
1 stop17h 48mCopa Airlines
Tue 9/305:25 amGRU - ORD
1 stop20h 56mCopa Airlines
Deal found 9/15$438
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 10/69:00 amORD - GRU
1 stop22h 30mUnited Airlines
Sun 10/1910:20 pmGRU - ORD
Nonstop10h 25mUnited Airlines
Deal found 9/14$440
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.
Thu 10/306:50 pmORD - GRU
Nonstop10h 25mUnited Airlines
Wed 11/269:30 pmGRU - ORD
1 stop15h 18mUnited Airlines
Deal found 9/15$446
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.
Sun 10/128:00 amORD - GRU
1 stop23h 30mUnited Airlines
Wed 10/229:30 pmGRU - ORD
1 stop16h 16mUnited Airlines
Deal found 9/14$450
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.
Thu 10/306:50 pmORD - GRU
Nonstop10h 25mUnited Airlines
Thu 11/610:25 pmGRU - ORD
1 stop28h 18mUnited Airlines
Deal found 9/15$452
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.
Mon 11/249:08 pmORD - GRU
1 stop33h 22mUnited Airlines
Tue 2/39:45 pmGRU - ORD
Nonstop10h 45mUnited Airlines
Deal found 9/15$453
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.
Mon 11/249:08 pmORD - GRU
1 stop33h 22mUnited Airlines
Mon 2/210:25 pmGRU - ORD
1 stop23h 12mUnited Airlines
Deal found 9/15$457
This Copa 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/198:02 amORD - GRU
1 stop14h 28mCopa Airlines
Tue 9/233:10 amGRU - ORD
1 stop23h 11mCopa Airlines
Deal found 9/15$458
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/286:00 amORD - CGH
2 stops27h 00mMultiple Airlines
Tue 11/46:30 amCGH - ORD
2 stops18h 03mMultiple Airlines
Deal found 9/12$550
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/56:00 amORD - VCP
3 stops33h 15mMultiple Airlines
Wed 10/1510:00 amVCP - ORD
1 stop13h 33mMultiple Airlines
Deal found 9/15$558

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Sao Paulo 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 September 15, 2025.
Use the filters below to find and compare flights from Illinois to Sao Paulo that are best for you.

Fly from

Illinois

Fly to

Sao Paulo

Route

Depart

Return

Price

ChicagoSao Paulo

ORD - GRU

ORDGRU

Chicago O'Hare Intl

Mon 10/20

9:15 pm-9:30 am

Nonstop10h 15m

Sao Paulo Guarulhos Intl

Thu 10/30

10:15 pm-7:00 am

Nonstop10h 45m

$435

ChicagoSao Paulo

ORD - GRU

ORDGRU

Chicago O'Hare Intl

Thu 10/30

6:50 pm-7:15 am

Nonstop10h 25m

Sao Paulo Guarulhos Intl

Sun 11/16

9:45 pm-5:30 am

Nonstop10h 45m

$435

ChicagoSao Paulo

ORD - GRU

ORDGRU

Chicago O'Hare Intl

Sun 10/12

9:15 pm-9:30 am

Nonstop10h 15m

Sao Paulo Guarulhos Intl

Wed 10/22

10:20 pm-6:45 am

Nonstop10h 25m

$435

ChicagoSao Paulo

ORD - GRU

ORDGRU

Chicago O'Hare Intl

Mon 10/13

9:15 pm-9:30 am

Nonstop10h 15m

Sao Paulo Guarulhos Intl

Thu 10/23

10:20 pm-6:45 am

Nonstop10h 25m

$435

ChicagoSao Paulo

ORD - GRU

ORDGRU

Chicago O'Hare Intl

Wed 10/22

7:59 am-12:30 am

1 stop14h 31m

Sao Paulo Guarulhos Intl

Fri 10/31

3:10 am-1:05 am

1 stop23h 55m

$438

ChicagoSao Paulo

ORD - GRU

ORDGRU

Chicago O'Hare Intl

Thu 10/2

7:59 am-12:30 am

1 stop14h 31m

Sao Paulo Guarulhos Intl

Tue 10/7

5:25 am-12:21 am

1 stop20h 56m

$438

ChicagoSao Paulo

ORD - GRU

ORDGRU

Chicago O'Hare Intl

Wed 2/4

5:50 pm-7:15 am

Nonstop10h 25m

Sao Paulo Guarulhos Intl

Wed 2/18

9:30 pm-9:36 am

1 stop15h 06m

$446

ChicagoSao Paulo

ORD - GRU

ORDGRU

Chicago O'Hare Intl

Mon 10/20

9:15 pm-9:30 am

Nonstop10h 15m

Sao Paulo Guarulhos Intl

Sun 11/2

10:25 pm-1:12 pm

1 stop17h 47m

$446

ChicagoSao Paulo

ORD - GRU

ORDGRU

Chicago O'Hare Intl

Mon 10/27

6:50 pm-7:15 am

Nonstop10h 25m

Sao Paulo Guarulhos Intl

Mon 11/10

10:25 pm-1:55 pm

1 stop18h 30m

$446

ChicagoSao Paulo

ORD - GRU

ORDGRU

Chicago O'Hare Intl

Sun 10/19

9:15 pm-9:30 am

Nonstop10h 15m

Sao Paulo Guarulhos Intl

Wed 10/29

9:30 pm-3:24 pm

1 stop19h 54m

$446

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 60 results
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Best time to book a flight from Illinois to Sao Paulo

Have a flexible travel schedule? Discover the best time to fly to Sao Paulo 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 Sao Paulo

What is the cheapest month to book a flight from Illinois to Sao Paulo?

Currently, September is the cheapest month in which you can book a flight from Illinois to Sao Paulo (average of $677). Flying from Illinois to Sao Paulo in December is currently the most expensive (average of $1,209). 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.

What is the cheapest time of day to fly from IL to SAO?

Find hourly flight availability from Illinois to Sao Paulo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Sao Paulo as you normally would.

Weekly flight availability from Illinois to Sao Paulo

Explore weekly flight availability from Illinois to Sao Paulo. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated September 15, 2025.

The most flights from USIL to SAO are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

Related info for your journey

Find useful and relevant information for your journey from Illinois to Sao Paulo. 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 Sao Paulo?

    For as low as $435, United Airlines can have you in Sao Paulo from Illinois in 10h 15m. Airlines will cover a distance of 5233 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Illinois to Sao Paulo one-way?

    $203 is the cheapest one-way deal found within the past few days, from Arajet. You may also be able to find cheap deals on Copa Airlines and Air Canada, with prices starting from $323 and $468, respectively.

  • What are the most popular routes from Illinois to Sao Paulo?

  • What are the cheapest flights from Illinois to Sao Paulo?

    Looking for the cheapest flight from Illinois to Sao Paulo? While on average our users pay $782, our data indicates the cheapest price to be $303. The most popular route (Chicago O'Hare Intl - Sao Paulo Guarulhos Intl), is priced around $435.

  • Can I find deals for flights from Illinois to Sao Paulo that include hotel bookings?

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

  • How can I find direct flights from Illinois to Sao Paulo?

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

  • Can I find deals for business class flights from Illinois to Sao Paulo?

    Yes. Cheapflights offers flight deals from Illinois to Sao Paulo 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 Illinois to Sao Paulo?

    Currently, September is the cheapest month in which you can book a flight from Illinois to Sao Paulo (average of $677). Flying from Illinois to Sao Paulo in December is currently the most expensive (average of $1,209). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Illinois to Sao Paulo

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

Top 8 airlines flying from Illinois to Sao Paulo

Discover the top 8 airlines that operate flights from Illinois to Sao Paulo. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Copa AirlinesCheapest$376Average$693FlexibilityNo cancel feeOn-time70%
AzulCheapest$450Average$1,768FlexibilityNo cancel feeOn-time82%
DeltaCheapest$487Average$667FlexibilityNo cancel feeOn-timeN/A
LATAM AirlinesCheapest$494Average$643FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$597Average$1,057FlexibilityNo cancel feeOn-time69%
AviancaCheapest$605Average$835FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$696Average$829FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$849Average$1,013FlexibilityNo cancel feeOn-time71%

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