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Cheap flights from Illinois to Porto Alegre from $285

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 4/16. 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.
LATAM Airlines Logo
6:07 pm - 5:20 pm
MDW
-
POA
21h 13m
2 stops
LATAM Airlines Logo
6:00 pm - 9:56 am
POA
-
MDW
17h 56m
2 stops
$698LATAM Airlines
Tue, Mar 10 - Fri, Mar 20
LATAM Airlines Logo
5:59 pm - 5:10 pm
ORD
-
POA
21h 11m
2 stops
LATAM Airlines Logo
6:40 am - 11:54 pm
POA
-
ORD
19h 14m
2 stops
$701LATAM Airlines
Wed, Mar 18 - Tue, Mar 24
Copa Airlines Logo
7:56 am - 12:25 am
ORD
-
POA
14h 29m
1 stop
Copa Airlines Logo
1:35 am - 1:50 pm
POA
-
ORD
14h 15m
1 stop
$712Copa Airlines
Tue, Mar 31 - Thu, Apr 9
GOL Logo
11:20 pm - 6:55 pm
ORD
-
POA
41h 35m
2 stops
GOL Logo
1:20 pm - 9:20 pm
POA
-
ORD
34h 00m
2 stops
$744GOL
Tue, Mar 31 - Fri, Apr 10
Copa Airlines Logo
7:56 am - 12:25 am
ORD
-
POA
14h 29m
1 stop
Copa Airlines Logo
1:35 am - 1:50 pm
POA
-
ORD
14h 15m
1 stop
$751Copa Airlines
Tue, Mar 31 - Mon, Apr 6
Azul Logo
6:50 pm - 4:25 pm
ORD
-
POA
19h 35m
1 stop
Azul Logo
2:05 pm - 7:00 am
POA
-
ORD
18h 55m
1 stop
$789Azul
Tue, Mar 10 - Fri, Mar 20
Azul Logo
4:00 pm - 2:25 pm
ORD
-
POA
20h 25m
2 stops
Azul Logo
5:10 pm - 7:00 am
POA
-
ORD
15h 50m
1 stop
$794Azul
Tue, Mar 10 - Fri, Mar 20
GOL Logo
11:20 pm - 6:55 pm
ORD
-
POA
41h 35m
2 stops
GOL Logo
1:20 pm - 9:20 pm
POA
-
ORD
34h 00m
2 stops
$807GOL
Tue, Mar 31 - Fri, Apr 10
Multiple Airlines Logo
1:37 pm - 1:00 pm
ORD
-
POA
21h 23m
2 stops
Multiple Airlines Logo
6:00 pm - 4:49 pm
POA
-
ORD
24h 49m
2 stops
$867Multiple Airlines
Tue, Mar 10 - Fri, Mar 20
Multiple Airlines Logo
8:41 am - 12:20 am
STL
-
POA
37h 39m
2 stops
Multiple Airlines Logo
1:35 am - 11:19 pm
POA
-
STL
23h 44m
2 stops
$1,107Multiple Airlines
Fri, Apr 10 - Thu, Apr 16

Copa Airlines flights from Illinois to Porto Alegre

Our best Copa Airlines deals on Illinois to Porto Alegre flight tickets
Copa Airlines
Mar 31
ORD7:56 amChicago O'Hare Intl
14h 29m
1 stop
POA12:25 amPorto Alegre Salgado Filho
Apr 9
POA1:35 amPorto Alegre Salgado Filho
14h 15m
1 stop
ORD1:50 pmChicago O'Hare Intl
$712
Copa Airlines
Mar 3
ORD7:34 amChicago O'Hare Intl
13h 51m
1 stop
POA12:25 amPorto Alegre Salgado Filho
Mar 24
POA1:30 amPorto Alegre Salgado Filho
14h 01m
1 stop
ORD1:31 pmChicago O'Hare Intl
$750
Copa Airlines
Mar 31
ORD7:56 amChicago O'Hare Intl
14h 29m
1 stop
POA12:25 amPorto Alegre Salgado Filho
Apr 6
POA1:35 amPorto Alegre Salgado Filho
14h 15m
1 stop
ORD1:50 pmChicago O'Hare Intl
$751

United Airlines flights from Illinois to Porto Alegre

Our best United Airlines deals on Illinois to Porto Alegre flight tickets
United Airlines
Mar 3
ORD2:30 pmChicago O'Hare Intl
20h 55m
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
$605
United Airlines
Mar 3
ORD4:00 pmChicago O'Hare Intl
19h 25m
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
$607
United Airlines
Mar 3
ORD5:50 pmChicago O'Hare Intl
19h 35m
1 stop
POA4:25 pmPorto Alegre Salgado Filho
Mar 25
POA5:10 pmPorto Alegre Salgado Filho
15h 50m
1 stop
ORD7:00 amChicago O'Hare Intl
$874

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 February 27, 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

MDW - POA

MDWPOA

Chicago Midway

Tue 3/10

6:07 pm-5:20 pm

2 stops21h 13m

Porto Alegre Salgado Filho

Fri 3/20

6:00 pm-9:56 am

2 stops17h 56m

$698

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Wed 3/18

5:59 pm-5:10 pm

2 stops21h 11m

Porto Alegre Salgado Filho

Tue 3/24

6:40 am-11:54 pm

2 stops19h 14m

$701

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Tue 3/31

7:56 am-12:25 am

1 stop14h 29m

Porto Alegre Salgado Filho

Thu 4/9

1:35 am-1:50 pm

1 stop14h 15m

$712

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Tue 3/31

11:20 pm-6:55 pm

2 stops41h 35m

Porto Alegre Salgado Filho

Fri 4/10

1:20 pm-9:20 pm

2 stops34h 00m

$744

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Tue 3/31

7:56 am-12:25 am

1 stop14h 29m

Porto Alegre Salgado Filho

Mon 4/6

1:35 am-1:50 pm

1 stop14h 15m

$751

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Tue 3/10

6:50 pm-4:25 pm

1 stop19h 35m

Porto Alegre Salgado Filho

Fri 3/20

2:05 pm-7:00 am

1 stop18h 55m

$789

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Tue 3/10

4:00 pm-2:25 pm

2 stops20h 25m

Porto Alegre Salgado Filho

Fri 3/20

5:10 pm-7:00 am

1 stop15h 50m

$794

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Tue 3/31

11:20 pm-6:55 pm

2 stops41h 35m

Porto Alegre Salgado Filho

Fri 4/10

1:20 pm-9:20 pm

2 stops34h 00m

$807

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Tue 3/10

1:37 pm-1:00 pm

2 stops21h 23m

Porto Alegre Salgado Filho

Fri 3/20

6:00 pm-4:49 pm

2 stops24h 49m

$867

St. LouisPorto Alegre

STL - POA

STLPOA

Lambert-St Louis

Fri 4/10

8:41 am-12:20 am

2 stops37h 39m

Porto Alegre Salgado Filho

Thu 4/16

1:35 am-11:19 pm

2 stops23h 44m

$1,107

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 55% 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

19h 25m

Direct flights

None
The fastest flight from Illinois to Porto Alegre takes 19h 25m
There are no direct flights from Illinois to Porto Alegre. There are no popular flight routes from Illinois to Porto Alegre.
Search flight deals

  • 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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