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Cheap flights from Illinois to Porto Alegre from $294

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.
Copa Airlines Logo
8:02 am - 12:20 am
ORD
-
POA
14h 18m
1 stop
Copa Airlines Logo
1:20 am - 2:06 pm
POA
-
ORD
14h 46m
1 stop
$618Copa Airlines
Wed, Jun 17 - Tue, Jun 23
Delta Logo
5:30 am - 6:15 am
ORD
-
POA
22h 45m
2 stops
Delta Logo
7:25 am - 4:56 pm
POA
-
ORD
35h 31m
2 stops
$692Delta
Sun, May 10 - Mon, May 25
LATAM Airlines Logo
10:59 am - 6:15 am
MDW
-
POA
17h 16m
2 stops
LATAM Airlines Logo
7:25 am - 11:56 am
POA
-
MDW
30h 31m
2 stops
$831LATAM Airlines
Sun, May 10 - Mon, May 25
LATAM Airlines Logo
9:48 am - 6:15 am
ORD
-
POA
18h 27m
2 stops
LATAM Airlines Logo
5:50 pm - 2:15 pm
POA
-
ORD
22h 25m
2 stops
$832LATAM Airlines
Wed, Jun 17 - Wed, Jun 24
GOL Logo
12:47 pm - 3:35 pm
ORD
-
POA
24h 48m
2 stops
GOL Logo
5:30 pm - 10:26 pm
POA
-
ORD
30h 56m
2 stops
$905GOL
Mon, Jun 8 - Mon, Jun 22
Multiple Airlines Logo
11:20 pm - 8:10 pm
ORD
-
POA
18h 50m
2 stops
Multiple Airlines Logo
5:10 pm - 7:39 pm
POA
-
ORD
28h 29m
3 stops
$927Multiple Airlines
Mon, Jun 8 - Mon, Jun 22
Multiple Airlines Logo
3:21 pm - 12:20 am
ORD
-
POA
30h 59m
1 stop
Multiple Airlines Logo
1:50 pm - 12:37 pm
POA
-
ORD
24h 47m
2 stops
$938Multiple Airlines
Sun, May 10 - Mon, May 25
GOL Logo
11:35 am - 11:40 pm
STL
-
POA
34h 05m
2 stops
GOL Logo
5:30 pm - 11:12 pm
POA
-
STL
31h 42m
2 stops
$984GOL
Mon, Sep 7 - Wed, Sep 16
American Airlines Logo
9:41 am - 3:40 pm
STL
-
POA
27h 59m
2 stops
American Airlines Logo
6:35 pm - 7:51 pm
POA
-
STL
27h 16m
2 stops
$1,332American Airlines
Wed, Jul 15 - Sun, Jul 19
American Airlines Logo
8:36 am - 3:35 pm
STL
-
POA
28h 59m
2 stops
American Airlines Logo
2:40 pm - 10:35 am
POA
-
STL
21h 55m
2 stops
$1,386American Airlines
Sat, May 30 - Sat, Jun 6

LATAM Airlines flights from Illinois to Porto Alegre

Our best LATAM Airlines deals on Illinois to Porto Alegre flight tickets
LATAM Airlines
May 10
MDW10:59 amChicago Midway
17h 16m
2 stops
POA6:15 amPorto Alegre Salgado Filho
May 25
POA7:25 amPorto Alegre Salgado Filho
30h 31m
2 stops
MDW11:56 amChicago Midway
$831
LATAM Airlines
Jun 17
ORD9:48 amChicago O'Hare Intl
18h 27m
2 stops
POA6:15 amPorto Alegre Salgado Filho
Jun 24
POA5:50 pmPorto Alegre Salgado Filho
22h 25m
2 stops
ORD2:15 pmChicago O'Hare Intl
$832
LATAM Airlines
Aug 11
ORD9:30 amChicago O'Hare Intl
21h 50m
2 stops
POA9:20 amPorto Alegre Salgado Filho
Aug 13
POA10:05 amPorto Alegre Salgado Filho
28h 36m
2 stops
ORD12:41 pmChicago O'Hare Intl
$870

United Airlines flights from Illinois to Porto Alegre

Our best United Airlines deals on Illinois to Porto Alegre flight tickets
United Airlines
Jun 17
ORD9:30 pmChicago O'Hare Intl
34h 15m
1 stop
POA9:45 amPorto Alegre Salgado Filho
Jun 24
POA5:10 pmPorto Alegre Salgado Filho
19h 40m
2 stops
ORD10:50 amChicago O'Hare Intl
$975
United Airlines
May 10
ORD9:30 pmChicago O'Hare Intl
14h 50m
1 stop
POA2:20 pmPorto Alegre Salgado Filho
May 25
POA3:45 pmPorto Alegre Salgado Filho
17h 00m
1 stop
ORD6:45 amChicago O'Hare Intl
$1,011
United Airlines
Apr 19
ORD9:30 pmChicago O'Hare Intl
16h 50m
1 stop
POA4:20 pmPorto Alegre Salgado Filho
Apr 28
POA5:10 pmPorto Alegre Salgado Filho
15h 35m
1 stop
ORD6:45 amChicago O'Hare Intl
$1,131

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 April 15, 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

Cheapest round-trip
Quickest round-trip

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Wed 6/17

8:02 am-12:20 am

1 stop14h 18m

Porto Alegre Salgado Filho

Tue 6/23

1:20 am-2:06 pm

1 stop14h 46m

$618

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Sun 5/10

5:30 am-6:15 am

2 stops22h 45m

Porto Alegre Salgado Filho

Mon 5/25

7:25 am-4:56 pm

2 stops35h 31m

$692

ChicagoPorto Alegre

MDW - POA

MDWPOA

Chicago Midway

Sun 5/10

10:59 am-6:15 am

2 stops17h 16m

Porto Alegre Salgado Filho

Mon 5/25

7:25 am-11:56 am

2 stops30h 31m

$831

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Wed 6/17

9:48 am-6:15 am

2 stops18h 27m

Porto Alegre Salgado Filho

Wed 6/24

5:50 pm-2:15 pm

2 stops22h 25m

$832

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Mon 6/8

12:47 pm-3:35 pm

2 stops24h 48m

Porto Alegre Salgado Filho

Mon 6/22

5:30 pm-10:26 pm

2 stops30h 56m

$905

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Mon 6/8

11:20 pm-8:10 pm

2 stops18h 50m

Porto Alegre Salgado Filho

Mon 6/22

5:10 pm-7:39 pm

3 stops28h 29m

$927

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Sun 5/10

3:21 pm-12:20 am

1 stop30h 59m

Porto Alegre Salgado Filho

Mon 5/25

1:50 pm-12:37 pm

2 stops24h 47m

$938

St. LouisPorto Alegre

STL - POA

STLPOA

Lambert-St Louis

Mon 9/7

11:35 am-11:40 pm

2 stops34h 05m

Porto Alegre Salgado Filho

Wed 9/16

5:30 pm-11:12 pm

2 stops31h 42m

$984

St. LouisPorto Alegre

STL - POA

STLPOA

Lambert-St Louis

Wed 7/15

9:41 am-3:40 pm

2 stops27h 59m

Porto Alegre Salgado Filho

Sun 7/19

6:35 pm-7:51 pm

2 stops27h 16m

$1,332

St. LouisPorto Alegre

STL - POA

STLPOA

Lambert-St Louis

Sat 5/30

8:36 am-3:35 pm

2 stops28h 59m

Porto Alegre Salgado Filho

Sat 6/6

2:40 pm-10:35 am

2 stops21h 55m

$1,386

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 13% 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

14h 50m

Direct flights

None
The fastest flight from Illinois to Porto Alegre takes 14h 50m
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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Frequently asked questions about flying from Illinois to Porto Alegre

  • 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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