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Cheap flights from Illinois to Porto Alegre from $346

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Porto Alegre departing on 5/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
Travel Warning: Due to flooding, the airport may be currently closed. Check local travel advisories before booking.

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Find the cheapest flights from Illinois to Porto Alegre

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
4:43 pm - 12:25 am
ORD
-
POA
28h 42m3 stops
Multiple Airlines Logo
8:45 pm - 5:46 pm
POA
-
ORD
23h 01m3 stops
$705Multiple Airlines
Mon, Feb 23 - Mon, Mar 9
Multiple Airlines Logo
9:22 pm - 12:25 am
MDW
-
POA
24h 03m2 stops
Multiple Airlines Logo
1:30 am - 8:53 pm
POA
-
MDW
21h 23m2 stops
$708Multiple Airlines
Mon, Feb 23 - Sun, Mar 8
GOL Logo
10:20 pm - 11:40 pm
ORD
-
POA
22h 20m2 stops
GOL Logo
9:20 pm - 9:20 pm
POA
-
ORD
26h 00m2 stops
$715GOL
Tue, Mar 3 - Wed, Mar 25
GOL Logo
10:20 pm - 11:40 pm
ORD
-
POA
22h 20m2 stops
GOL Logo
9:20 pm - 9:20 pm
POA
-
ORD
26h 00m2 stops
$716GOL
Tue, Mar 3 - Wed, Mar 25
Multiple Airlines Logo
10:20 pm - 12:45 am
ORD
-
POA
23h 25m2 stops
Multiple Airlines Logo
8:45 pm - 5:46 pm
POA
-
ORD
23h 01m3 stops
$738Multiple Airlines
Mon, Feb 23 - Mon, Mar 9
GOL Logo
10:20 pm - 12:45 am
ORD
-
POA
23h 25m2 stops
GOL Logo
1:40 pm - 9:20 pm
POA
-
ORD
33h 40m2 stops
$742GOL
Mon, Feb 23 - Mon, Mar 9
Copa Airlines Logo
7:34 am - 12:25 am
ORD
-
POA
13h 51m1 stop
Copa Airlines Logo
1:30 am - 1:31 pm
POA
-
ORD
14h 01m1 stop
$811Copa Airlines
Tue, Mar 3 - Tue, Mar 24
United Airlines Logo
3:50 pm - 4:25 pm
ORD
-
POA
21h 35m2 stops
United Airlines Logo
5:10 pm - 7:00 am
POA
-
ORD
15h 50m1 stop
$866United Airlines
Tue, Mar 3 - Wed, Mar 25
United Airlines Logo
3:50 pm - 2:25 pm
ORD
-
POA
19h 35m2 stops
United Airlines Logo
5:10 pm - 7:00 am
POA
-
ORD
15h 50m1 stop
$867United Airlines
Tue, Mar 3 - Wed, Mar 25
LATAM Airlines Logo
12:55 pm - 9:05 pm
MDW
-
POA
30h 10m2 stops
LATAM Airlines Logo
7:35 pm - 11:56 am
POA
-
MDW
42h 21m2 stops
$931LATAM Airlines
Sun, Apr 19 - Sun, May 17

GOL flights from Illinois to Porto Alegre

Our best GOL deals on Illinois to Porto Alegre flight tickets
GOL
Mar 3
ORD10:20 pmChicago O'Hare Intl
22h 20m
2 stops
POA11:40 pmPorto Alegre Salgado Filho
Mar 25
POA9:20 pmPorto Alegre Salgado Filho
26h 00m
2 stops
ORD9:20 pmChicago O'Hare Intl
$715
GOL
Mar 3
ORD10:20 pmChicago O'Hare Intl
22h 20m
2 stops
POA11:40 pmPorto Alegre Salgado Filho
Mar 25
POA9:20 pmPorto Alegre Salgado Filho
26h 00m
2 stops
ORD9:20 pmChicago O'Hare Intl
$716
GOL
Feb 23
ORD10:20 pmChicago O'Hare Intl
23h 25m
2 stops
POA12:45 amPorto Alegre Salgado Filho
Mar 9
POA1:40 pmPorto Alegre Salgado Filho
33h 40m
2 stops
ORD9:20 pmChicago O'Hare Intl
$742

United Airlines flights from Illinois to Porto Alegre

Our best United Airlines deals on Illinois to Porto Alegre flight tickets
United Airlines
Mar 3
ORD3:50 pmChicago O'Hare Intl
21h 35m
2 stops
POA4:25 pmPorto Alegre Salgado Filho
Mar 25
POA5:10 pmPorto Alegre Salgado Filho
15h 50m
1 stop
ORD7:00 amChicago O'Hare Intl
$866
United Airlines
Mar 3
ORD3:50 pmChicago O'Hare Intl
19h 35m
2 stops
POA2:25 pmPorto Alegre Salgado Filho
Mar 25
POA5:10 pmPorto Alegre Salgado Filho
15h 50m
1 stop
ORD7:00 amChicago O'Hare Intl
$867
United Airlines
Apr 19
ORD3:35 pmChicago O'Hare Intl
22h 45m
2 stops
POA4:20 pmPorto Alegre Salgado Filho
May 17
POA11:15 amPorto Alegre Salgado Filho
21h 30m
1 stop
ORD6:45 amChicago O'Hare Intl
$872

momondo 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, momondo users made 832,500 searches. Data last updated January 11, 2026.
Use the filters below to find and compare flights from Illinois to Porto Alegre that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Mon 2/23

4:43 pm-12:25 am

3 stops28h 42m

Porto Alegre Salgado Filho

Mon 3/9

8:45 pm-5:46 pm

3 stops23h 01m

$705

ChicagoPorto Alegre

MDW - POA

MDWPOA

Chicago Midway

Mon 2/23

9:22 pm-12:25 am

2 stops24h 03m

Porto Alegre Salgado Filho

Sun 3/8

1:30 am-8:53 pm

2 stops21h 23m

$708

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Tue 3/3

10:20 pm-11:40 pm

2 stops22h 20m

Porto Alegre Salgado Filho

Wed 3/25

9:20 pm-9:20 pm

2 stops26h 00m

$715

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Tue 3/3

10:20 pm-11:40 pm

2 stops22h 20m

Porto Alegre Salgado Filho

Wed 3/25

9:20 pm-9:20 pm

2 stops26h 00m

$716

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Mon 2/23

10:20 pm-12:45 am

2 stops23h 25m

Porto Alegre Salgado Filho

Mon 3/9

8:45 pm-5:46 pm

3 stops23h 01m

$738

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Mon 2/23

10:20 pm-12:45 am

2 stops23h 25m

Porto Alegre Salgado Filho

Mon 3/9

1:40 pm-9:20 pm

2 stops33h 40m

$742

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Tue 3/3

7:34 am-12:25 am

1 stop13h 51m

Porto Alegre Salgado Filho

Tue 3/24

1:30 am-1:31 pm

1 stop14h 01m

$811

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Tue 3/3

3:50 pm-4:25 pm

2 stops21h 35m

Porto Alegre Salgado Filho

Wed 3/25

5:10 pm-7:00 am

1 stop15h 50m

$866

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Tue 3/3

3:50 pm-2:25 pm

2 stops19h 35m

Porto Alegre Salgado Filho

Wed 3/25

5:10 pm-7:00 am

1 stop15h 50m

$867

ChicagoPorto Alegre

MDW - POA

MDWPOA

Chicago Midway

Sun 4/19

12:55 pm-9:05 pm

2 stops30h 10m

Porto Alegre Salgado Filho

Sun 5/17

7:35 pm-11:56 am

2 stops42h 21m

$931

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Illinois to Porto Alegre

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Can stopping save me money on Illinois to Porto Alegre flights?

You could potentially save up to 57% on your flight if you consider stops on a Illinois to Porto Alegre flight.

Cheap Illinois to Porto Alegre flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Porto Alegre

Fastest flight time

17h 21m

Direct flights

None
The fastest flight from Illinois to Porto Alegre takes 17h 21m
There are no direct flights from Illinois to Porto Alegre. There are no popular flight routes from Illinois to Porto Alegre.
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  • When did momondo last update prices for flights from Illinois to Porto Alegre Salgado Filho Airport?

    Prices for flights from Illinois to Porto Alegre Salgado Filho Airport refresh daily.

  • How many operators does momondo search for flights from Illinois to Porto Alegre Salgado Filho Airport?

  • How old do you have to be to fly from Illinois to Porto Alegre Salgado Filho Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Porto Alegre Salgado Filho Airport.

  • What documentation or ID do you need to fly to Porto Alegre Salgado Filho Airport?

    The required travel and health documents for your Porto Alegre Salgado Filho Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Porto Alegre Salgado Filho Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Porto Alegre?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Illinois to Porto Alegre for you.

Can I find flights from Illinois to Porto Alegre with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Illinois to Porto Alegre flights to just show those with flexible booking policies.

How can momondo help me find flights from Illinois to Porto Alegre?

momondo helps you find the best flight between Illinois and Porto Alegre by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Illinois to Porto Alegre right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Illinois to Porto Alegre flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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