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Cheap flights from Illinois to Porto Alegre from $318

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 6/16. 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.
Copa Airlines Logo
3:20 pm - 12:20 am
ORD
-
POA
31h 00m
1 stop
Copa Airlines Logo
1:20 am - 1:02 am
POA
-
ORD
25h 42m
1 stop
$680Copa Airlines
dom., sep. 20 - vie., sep. 25
LATAM Airlines Logo
1:50 pm - 9:20 am
ORD
-
POA
17h 30m
2 stops
LATAM Airlines Logo
7:35 am - 11:59 pm
POA
-
ORD
18h 24m
2 stops
$698LATAM Airlines
sáb., sep. 26 - jue., oct. 1
Copa Airlines Logo
3:20 pm - 12:20 am
ORD
-
POA
31h 00m
1 stop
Copa Airlines Logo
1:20 am - 1:02 am
POA
-
ORD
25h 42m
1 stop
$700Copa Airlines
dom., sep. 20 - vie., sep. 25
Copa Airlines Logo
8:01 am - 12:20 am
ORD
-
POA
14h 19m
1 stop
Copa Airlines Logo
1:20 am - 12:57 am
POA
-
ORD
25h 37m
1 stop
$756Copa Airlines
sáb., sep. 26 - mié., sep. 30
Multiple Airlines Logo
11:20 pm - 12:40 am
ORD
-
POA
23h 20m
2 stops
Multiple Airlines Logo
7:40 pm - 9:20 pm
POA
-
ORD
27h 40m
2 stops
$757Multiple Airlines
dom., sep. 20 - sáb., sep. 26
Multiple Airlines Logo
11:20 pm - 11:55 pm
ORD
-
POA
22h 35m
2 stops
Multiple Airlines Logo
7:40 pm - 9:20 pm
POA
-
ORD
27h 40m
2 stops
$761Multiple Airlines
dom., sep. 20 - sáb., sep. 26
Multiple Airlines Logo
11:20 pm - 12:40 am
ORD
-
POA
23h 20m
2 stops
Multiple Airlines Logo
6:30 pm - 9:20 pm
POA
-
ORD
28h 50m
2 stops
$767Multiple Airlines
dom., sep. 20 - sáb., sep. 26
Multiple Airlines Logo
8:01 am - 12:20 am
ORD
-
POA
14h 19m
1 stop
Multiple Airlines Logo
5:00 am - 12:02 am
POA
-
ORD
46h 02m
2 stops
$775Multiple Airlines
jue., oct. 8 - dom., nov. 8
GOL Logo
11:20 pm - 11:55 pm
ORD
-
POA
22h 35m
2 stops
GOL Logo
7:40 pm - 9:20 pm
POA
-
ORD
27h 40m
2 stops
$789GOL
dom., sep. 20 - sáb., sep. 26
Copa Airlines Logo
3:21 pm - 12:20 am
ORD
-
POA
30h 59m
1 stop
Copa Airlines Logo
1:20 am - 2:06 pm
POA
-
ORD
14h 46m
1 stop
$796Copa Airlines
mié., jun. 17 - mar., jun. 23

Copa Airlines flights from Illinois to Porto Alegre

Our best Copa Airlines deals on Illinois to Porto Alegre flight tickets
Copa Airlines
Sep 20
ORD3:20 pmChicago O'Hare Intl
31h 00m
1 stop
POA12:20 amPorto Alegre Salgado Filho
Sep 25
POA1:20 amPorto Alegre Salgado Filho
25h 42m
1 stop
ORD1:02 amChicago O'Hare Intl
$680
Copa Airlines
Sep 20
ORD3:20 pmChicago O'Hare Intl
31h 00m
1 stop
POA12:20 amPorto Alegre Salgado Filho
Sep 25
POA1:20 amPorto Alegre Salgado Filho
25h 42m
1 stop
ORD1:02 amChicago O'Hare Intl
$700
Copa Airlines
Sep 26
ORD8:01 amChicago O'Hare Intl
14h 19m
1 stop
POA12:20 amPorto Alegre Salgado Filho
Sep 30
POA1:20 amPorto Alegre Salgado Filho
25h 37m
1 stop
ORD12:57 amChicago O'Hare Intl
$756

LATAM Airlines flights from Illinois to Porto Alegre

Our best LATAM Airlines deals on Illinois to Porto Alegre flight tickets
LATAM Airlines
Sep 26
ORD1:50 pmChicago O'Hare Intl
17h 30m
2 stops
POA9:20 amPorto Alegre Salgado Filho
Oct 1
POA7:35 amPorto Alegre Salgado Filho
18h 24m
2 stops
ORD11:59 pmChicago O'Hare Intl
$698
LATAM Airlines
Aug 23
ORD3:31 pmChicago O'Hare Intl
30h 44m
2 stops
POA12:15 amPorto Alegre Salgado Filho
Aug 27
POA7:35 amPorto Alegre Salgado Filho
18h 27m
2 stops
ORD12:02 amChicago O'Hare Intl
$850
LATAM Airlines
Jun 17
ORD9:48 amChicago O'Hare Intl
30h 27m
2 stops
POA6:15 pmPorto Alegre Salgado Filho
Jun 24
POA12:10 pmPorto Alegre Salgado Filho
26h 26m
2 stops
ORD12:36 pmChicago O'Hare Intl
$859

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 mayo 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

Cheapest round-trip

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

dom. 9/20

3:20 pm-12:20 am

1 stop31h 00m

Porto Alegre Salgado Filho

vie. 9/25

1:20 am-1:02 am

1 stop25h 42m

$680
Quickest round-trip

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

sáb. 9/26

1:50 pm-9:20 am

2 stops17h 30m

Porto Alegre Salgado Filho

jue. 10/1

7:35 am-11:59 pm

2 stops18h 24m

$698

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

dom. 9/20

3:20 pm-12:20 am

1 stop31h 00m

Porto Alegre Salgado Filho

vie. 9/25

1:20 am-1:02 am

1 stop25h 42m

$700

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

sáb. 9/26

8:01 am-12:20 am

1 stop14h 19m

Porto Alegre Salgado Filho

mié. 9/30

1:20 am-12:57 am

1 stop25h 37m

$756

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

dom. 9/20

11:20 pm-12:40 am

2 stops23h 20m

Porto Alegre Salgado Filho

sáb. 9/26

7:40 pm-9:20 pm

2 stops27h 40m

$757

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

dom. 9/20

11:20 pm-11:55 pm

2 stops22h 35m

Porto Alegre Salgado Filho

sáb. 9/26

7:40 pm-9:20 pm

2 stops27h 40m

$761

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

dom. 9/20

11:20 pm-12:40 am

2 stops23h 20m

Porto Alegre Salgado Filho

sáb. 9/26

6:30 pm-9:20 pm

2 stops28h 50m

$767

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

jue. 10/8

8:01 am-12:20 am

1 stop14h 19m

Porto Alegre Salgado Filho

dom. 11/8

5:00 am-12:02 am

2 stops46h 02m

$775

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

dom. 9/20

11:20 pm-11:55 pm

2 stops22h 35m

Porto Alegre Salgado Filho

sáb. 9/26

7:40 pm-9:20 pm

2 stops27h 40m

$789

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

mié. 6/17

3:21 pm-12:20 am

1 stop30h 59m

Porto Alegre Salgado Filho

mar. 6/23

1:20 am-2:06 pm

1 stop14h 46m

$796

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 4% 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

16h 50m

Direct flights

None
The fastest flight from Illinois to Porto Alegre takes 16h 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 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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1 adult
vie. 6/26
vie. 7/3
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