HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Porto Alegre

$287+ Cheap flights from Illinois to Porto Alegre (POA)

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 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — POA
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Porto Alegre with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Illinois to Porto Alegre

Keep the following information in mind while searching for Illinois to Porto Alegre flight deals. Data was last updated September 17, 2025.

Round-trip from

$656
(United Airlines)

One-way from

$287
(Kiwi.com)
From Illinois to Porto Alegre Salgado Filho
Search Deals
One-way flight from Illinois to Porto Alegre Salgado Filho
Search Deals

Find flight deals from Illinois to Porto Alegre

Cheapest flights from Illinois to Porto Alegre
Explore the most affordable flight options available from Illinois to Porto Alegre. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

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 10/139:15 pmORD - POA
1 stop35h 30mUnited Airlines
Tue 10/211:55 pmPOA - ORD
1 stop18h 50mUnited Airlines
Deal found 9/14$656
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 11/98:50 amORD - POA
2 stops28h 30mUnited Airlines
Mon 11/173:25 pmPOA - ORD
1 stop17h 05mUnited Airlines
Deal found 9/14$660
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 11/28:50 amORD - POA
2 stops26h 30mUnited Airlines
Mon 11/103:25 pmPOA - ORD
2 stops25h 30mUnited Airlines
Deal found 9/14$670
This Copa 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/96:56 amORD - POA
1 stop14h 34mCopa Airlines
Sun 11/161:35 amPOA - ORD
1 stop14h 11mCopa Airlines
Deal found 9/14$694
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/95:59 pmORD - POA
2 stops26h 56mMultiple Airlines
Mon 11/1711:45 amPOA - ORD
2 stops35h 35mMultiple Airlines
Deal found 9/14$712
This GOL 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 GOL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/42:05 pmORD - POA
2 stops31h 40mGOL
Mon 12/81:40 pmPOA - ORD
2 stops25h 35mGOL
Deal found 9/15$719
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/166:05 amORD - POA
2 stops26h 25mMultiple Airlines
Tue 11/259:00 pmPOA - ORD
2 stops26h 20mMultiple Airlines
Deal found 9/14$725
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/27:43 pmORD - POA
2 stops25h 12mMultiple Airlines
Mon 11/108:45 pmPOA - ORD
3 stops27h 38mMultiple Airlines
Deal found 9/14$726
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/27:43 pmORD - POA
2 stops25h 12mMultiple Airlines
Sun 11/99:00 pmPOA - ORD
2 stops26h 20mMultiple Airlines
Deal found 9/14$736
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/166:00 amMDW - POA
2 stops21h 30mLATAM Airlines
Tue 11/252:55 pmPOA - MDW
2 stops21h 57mLATAM Airlines
Deal found 9/14$1,101
This Delta deal was found by Cheapflights users on 9/17. 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 11/126:00 amSTL - POA
2 stops21h 30mDelta
Sat 11/226:00 pmPOA - STL
2 stops19h 49mDelta
Deal found 9/17$1,140
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/45:32 pmMDW - POA
2 stops33h 58mLATAM Airlines
Mon 12/87:45 amPOA - MDW
2 stops18h 47mLATAM Airlines
Deal found 9/15$1,245

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Porto Alegre 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 17, 2025.
Use the filters below to find and compare flights from Illinois to Porto Alegre that are best for you.

Fly from

Illinois

Fly to

Porto Alegre

Route

Depart

Return

Price

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Mon 10/13

9:15 pm-10:45 am

1 stop35h 30m

Porto Alegre Salgado Filho

Tue 10/21

1:55 pm-6:45 am

1 stop18h 50m

$656

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Sun 11/9

8:50 am-4:20 pm

2 stops28h 30m

Porto Alegre Salgado Filho

Mon 11/17

3:25 pm-5:30 am

1 stop17h 05m

$660

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Sun 11/2

8:50 am-2:20 pm

2 stops26h 30m

Porto Alegre Salgado Filho

Mon 11/10

3:25 pm-1:55 pm

2 stops25h 30m

$670

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Sun 11/9

6:56 am-12:30 am

1 stop14h 34m

Porto Alegre Salgado Filho

Sun 11/16

1:35 am-12:46 pm

1 stop14h 11m

$694

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Tue 3/3

6:56 am-12:25 am

1 stop14h 29m

Porto Alegre Salgado Filho

Tue 3/24

1:30 am-1:31 pm

1 stop14h 01m

$708

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Tue 3/3

12:45 pm-4:10 pm

2 stops24h 25m

Porto Alegre Salgado Filho

Wed 3/25

5:10 pm-7:00 am

1 stop15h 50m

$711

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Thu 12/4

7:00 am-9:45 am

3 stops23h 45m

Porto Alegre Salgado Filho

Mon 12/8

5:20 pm-9:23 pm

2 stops31h 03m

$715

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Sun 11/9

5:59 pm-11:55 pm

2 stops26h 56m

Porto Alegre Salgado Filho

Mon 11/17

1:55 pm-9:23 pm

3 stops34h 28m

$715

St. LouisPorto Alegre

STL - POA

STLPOA

Lambert-St Louis

Mon 3/2

4:04 pm-4:30 pm

2 stops21h 26m

Porto Alegre Salgado Filho

Wed 3/4

5:20 pm-9:40 pm

2 stops31h 20m

$1,092

ChicagoPorto Alegre

MDW - POA

MDWPOA

Chicago Midway

Sun 11/16

6:00 am-6:30 am

2 stops21h 30m

Porto Alegre Salgado Filho

Tue 11/25

2:55 pm-9:52 am

2 stops21h 57m

$1,101

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

Showing 1-10 of 33 results
1
2
3
4

Best time to book a flight from Illinois to Porto Alegre

Have a flexible travel schedule? Discover the best time to fly to Porto Alegre 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 Porto Alegre

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

Find hourly flight availability from Illinois to Porto Alegre. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

When flying from Illinois to Porto Alegre, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Related info for your journey

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

  • What airport do you fly into for flights to Porto Alegre from Illinois?

    For a flight from Illinois to Porto Alegre, you will be flying into Salgado Filho. Porto Alegre Salgado Filho (POA) is just 4.0 mi from the center of the city.

  • How long is the flight from Illinois to Porto Alegre?

    Departing from Illinois to Porto Alegre will take you 14h 34m. Illinois and Porto Alegre are separated by a distance of 5492 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from Illinois to Porto Alegre?

    While some choose either Lambert-St Louis - Porto Alegre Salgado Filho or Chicago Midway - Porto Alegre Salgado Filho, Chicago O'Hare Intl - Porto Alegre Salgado Filho is the most popular route from Illinois to Porto Alegre.

  • Can I find deals for flights from Illinois to Porto Alegre that include hotel bookings?

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

  • How can I find direct flights from Illinois to Porto Alegre?

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

  • Can I find deals for business class flights from Illinois to Porto Alegre?

    Yes. Cheapflights offers flight deals from Illinois to Porto Alegre 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Illinois to Porto Alegre

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Porto Alegre flights
Miami to Porto Alegre flights
Boston to Porto Alegre flights
Newark to Porto Alegre flights
Fort Lauderdale to Porto Alegre flights
LaGuardia to Porto Alegre flights
Orlando to Porto Alegre flights
Dulles Intl to Porto Alegre flights
O'Hare Intl to Porto Alegre flights
San Francisco to Porto Alegre flights
New Orleans to Porto Alegre flights
Atlanta to Porto Alegre flights
Seattle to Porto Alegre flights
Austin to Porto Alegre flights
Hobby to Porto Alegre flights
San Diego to Porto Alegre flights
Dallas/Fort Worth to Porto Alegre flights
Raleigh to Porto Alegre flights
Los Angeles to Porto Alegre flights
San Francisco to Caxias do Sul flights
Detroit to Porto Alegre flights
San Jose to Porto Alegre flights
George Bush Intcntl to Porto Alegre flights
St. Louis to Porto Alegre flights
Nashville to Porto Alegre flights
Ontario to Porto Alegre flights
San Antonio to Porto Alegre flights
Portland to Porto Alegre flights
Las Vegas to Porto Alegre flights
Birmingham to Porto Alegre flights
Chattanooga to Porto Alegre flights
Santa Ana to Porto Alegre flights
Memphis to Porto Alegre flights
Sacramento to Porto Alegre flights
Tulsa to Porto Alegre flights
Philadelphia to Porto Alegre flights
Dulles Intl to Santa Maria flights
Newark to Caxias do Sul flights
San Francisco to Santa Maria flights
Oakland to Porto Alegre flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.