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Porto Alegre

$336+ Cheap flights from Chicago (CHI) 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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — POA
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Chicago to Porto Alegre

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Porto Alegre (POA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 11, 2025.

Round-trip from

$840
(Air Canada)

One-way from

$336
(Kiwi.com)
From Chicago (CHI) to Porto Alegre Salgado Filho
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One-way flight from Chicago (CHI) to Porto Alegre Salgado Filho
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Find flight deals from Chicago to Porto Alegre

Cheapest flights from Chicago to Porto Alegre
Explore the most affordable flight options available from Chicago to Porto Alegre. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This United Airlines deal was found by Cheapflights users on 9/10. 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 9/239:15 pmORD - POA
1 stop16h 55mUnited Airlines
Fri 9/263:25 pmPOA - ORD
2 stops20h 45mUnited Airlines
Deal found 9/10$1,355
This Expedia deal was found by Cheapflights users on 9/10. 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.
Tue 9/2312:43 pmMDW - POA
2 stops29h 07mLATAM Airlines
Fri 9/266:40 amPOA - MDW
2 stops16h 56mLATAM Airlines
Deal found 9/10$1,395

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chicago 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 11, 2025.
Use the filters below to find and compare flights from Chicago to Porto Alegre that are best for you.

Fly from

Chicago

Fly to

Porto Alegre

Route

Depart

Return

Price

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Tue 3/3

7:15 am-2:35 pm

2 stops28h 20m

Porto Alegre Salgado Filho

Wed 3/25

5:10 pm-11:18 am

2 stops20h 08m

$840

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Wed 2/18

3:55 pm-6:20 pm

2 stops23h 25m

Porto Alegre Salgado Filho

Sun 2/22

10:20 am-2:55 pm

2 stops31h 35m

$848

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Wed 2/18

1:35 pm-12:25 am

2 stops31h 50m

Porto Alegre Salgado Filho

Sun 2/22

5:55 pm-12:15 pm

2 stops21h 20m

$936

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Tue 3/3

5:50 pm-2:35 pm

1 stop17h 45m

Porto Alegre Salgado Filho

Wed 3/25

3:25 pm-9:39 am

2 stops20h 14m

$1,066

ChicagoPorto Alegre

MDW - POA

MDWPOA

Chicago Midway

Wed 2/18

1:05 pm-7:20 pm

2 stops27h 15m

Porto Alegre Salgado Filho

Sun 2/22

6:40 am-9:56 am

2 stops30h 16m

$1,156

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Wed 2/18

2:22 pm-12:25 am

1 stop31h 03m

Porto Alegre Salgado Filho

Sat 2/21

1:30 am-12:04 am

1 stop25h 34m

$1,302

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Tue 9/23

9:15 pm-4:10 pm

1 stop16h 55m

Porto Alegre Salgado Filho

Fri 9/26

3:25 pm-10:10 am

2 stops20h 45m

$1,355

ChicagoPorto Alegre

MDW - POA

MDWPOA

Chicago Midway

Tue 9/23

12:43 pm-7:50 pm

2 stops29h 07m

Porto Alegre Salgado Filho

Fri 9/26

6:40 am-9:36 pm

2 stops16h 56m

$1,395

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Wed 2/18

5:50 pm-2:35 pm

1 stop17h 45m

Porto Alegre Salgado Filho

Sun 2/22

3:10 pm-5:30 am

1 stop17h 20m

$1,702

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Tue 10/7

7:43 pm-11:55 pm

3 stops50h 12m

$336

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 24 results
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Best time to book a flight from Chicago to Porto Alegre

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

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

Find hourly flight availability from Chicago 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 11, 2025.

It’s typically best to fly out from Chicago to Porto Alegre in the morning. Doing so could potentially save you 14% on the flight price compared to flying in the afternoon, which is usually more expensive.

Related info for your journey

Find useful and relevant information for your journey from Chicago 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 Chicago?

    Located just 4.0 mi from the city center, Porto Alegre Salgado Filho is the airport most travelers will use when flying to Porto Alegre from Chicago. Booking flights from Chicago to Salgado Filho (POA) should be relatively easy as there are 0 daily inbound flights from Chicago from 0 different airlines.

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

    Departing from Chicago to Porto Alegre will take you 17h 45m. The distance between Chicago and Porto Alegre is about 5492 mi. This flight may include one or multiple stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Chicago 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

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