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Cheap flights from Illinois to Porto Alegre from $635

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 12/17. 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.
Air Canada Logo
12:50 pm - 4:20 pmORD-POA
24h 30m2 stops
Air Canada Logo
5:10 pm - 11:18 amPOA-ORD
20h 08m2 stops
$751Air Canada
Find Deal
mar., mar. 3 - mié., mar. 25
Air Canada Logo
12:50 pm - 2:20 pmORD-POA
22h 30m2 stops
Air Canada Logo
3:25 pm - 11:18 amPOA-ORD
21h 53m2 stops
$752Air Canada
Find Deal
mar., mar. 3 - mié., mar. 25
Air Canada Logo
12:50 pm - 4:20 pmORD-POA
24h 30m2 stops
Air Canada Logo
5:10 pm - 11:18 amPOA-ORD
20h 08m2 stops
$754Air Canada
Find Deal
mar., mar. 3 - mié., mar. 25
GOL Logo
1:35 pm - 11:00 amORD-POA
42h 25m2 stops
GOL Logo
11:40 am - 12:15 pmPOA-ORD
27h 35m2 stops
$775GOL
Find Deal
lun., mar. 2 - vie., mar. 6
LATAM Airlines Logo
10:49 am - 12:10 amMDW-POA
34h 21m2 stops
LATAM Airlines Logo
12:30 pm - 11:55 amPOA-MDW
26h 25m2 stops
$872LATAM Airlines
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lun., dic. 8 - mié., dic. 10
United Airlines Logo
2:30 pm - 4:20 pmORD-POA
22h 50m2 stops
United Airlines Logo
3:25 pm - 7:00 amPOA-ORD
17h 35m1 stop
$944United Airlines
Find Deal
mar., mar. 3 - mié., mar. 25
United Airlines Logo
2:30 pm - 2:20 pmORD-POA
20h 50m2 stops
United Airlines Logo
3:25 pm - 7:00 amPOA-ORD
17h 35m1 stop
$945United Airlines
Find Deal
mar., mar. 3 - mié., mar. 25
Copa Airlines Logo
7:34 am - 12:25 amORD-POA
13h 51m1 stop
Copa Airlines Logo
1:30 am - 1:31 pmPOA-ORD
14h 01m1 stop
$1,058Copa Airlines
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mar., mar. 3 - mar., mar. 24
LATAM Airlines Logo
12:46 pm - 5:05 pmMDW-POA
25h 19m2 stops
LATAM Airlines Logo
2:05 pm - 5:45 pmPOA-MDW
30h 40m2 stops
$1,098LATAM Airlines
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mié., feb. 18 - dom., feb. 22
Copa Airlines Logo
2:22 pm - 12:25 amORD-POA
31h 03m1 stop
Copa Airlines Logo
1:30 am - 12:04 amPOA-ORD
25h 34m1 stop
$1,126Copa Airlines
Find Deal
lun., mar. 2 - jue., mar. 5

Air Canada flights from Illinois to Porto Alegre

Our best Air Canada deals on Illinois to Porto Alegre flight tickets
Air Canada
Mar 3
ORD12:50 pmChicago O'Hare Intl
24h 30m
2 stops
POA4:20 pmPorto Alegre Salgado Filho
Mar 25
POA5:10 pmPorto Alegre Salgado Filho
20h 08m
2 stops
ORD11:18 amChicago O'Hare Intl
$751
Find similar
Air Canada
Mar 3
ORD12:50 pmChicago O'Hare Intl
24h 30m
2 stops
POA4:20 pmPorto Alegre Salgado Filho
Mar 25
POA5:10 pmPorto Alegre Salgado Filho
20h 08m
2 stops
ORD11:18 amChicago O'Hare Intl
$754
Find similar

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 50m
2 stops
POA2:20 pmPorto Alegre Salgado Filho
Mar 25
POA3:25 pmPorto Alegre Salgado Filho
17h 35m
1 stop
ORD7:00 amChicago O'Hare Intl
$945
Find similar
United Airlines
Dec 8
ORD5:50 pmChicago O'Hare Intl
17h 50m
1 stop
POA2:40 pmPorto Alegre Salgado Filho
Dec 11
POA3:35 pmPorto Alegre Salgado Filho
16h 55m
1 stop
ORD5:30 amChicago O'Hare Intl
$1,208
Find similar
United Airlines
Dec 8
ORD5:50 pmChicago O'Hare Intl
19h 20m
1 stop
POA4:10 pmPorto Alegre Salgado Filho
Dec 11
POA3:35 pmPorto Alegre Salgado Filho
21h 01m
2 stops
ORD9:36 amChicago O'Hare Intl
$1,218
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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 noviembre 20, 2025.
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

mar. 3/3

12:50 pm-4:20 pm

2 stops24h 30m

Porto Alegre Salgado Filho

mié. 3/25

5:10 pm-11:18 am

2 stops20h 08m

$751

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

mar. 3/3

12:50 pm-2:20 pm

2 stops22h 30m

Porto Alegre Salgado Filho

mié. 3/25

3:25 pm-11:18 am

2 stops21h 53m

$752

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

mar. 3/3

12:50 pm-4:20 pm

2 stops24h 30m

Porto Alegre Salgado Filho

mié. 3/25

5:10 pm-11:18 am

2 stops20h 08m

$754

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

lun. 3/2

1:35 pm-11:00 am

2 stops42h 25m

Porto Alegre Salgado Filho

vie. 3/6

11:40 am-12:15 pm

2 stops27h 35m

$775

ChicagoPorto Alegre

MDW - POA

MDWPOA

Chicago Midway

lun. 12/8

10:49 am-12:10 am

2 stops34h 21m

Porto Alegre Salgado Filho

mié. 12/10

12:30 pm-11:55 am

2 stops26h 25m

$872

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

mar. 3/3

2:30 pm-4:20 pm

2 stops22h 50m

Porto Alegre Salgado Filho

mié. 3/25

3:25 pm-7:00 am

1 stop17h 35m

$944

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

mar. 3/3

2:30 pm-2:20 pm

2 stops20h 50m

Porto Alegre Salgado Filho

mié. 3/25

3:25 pm-7:00 am

1 stop17h 35m

$945

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

mar. 3/3

7:34 am-12:25 am

1 stop13h 51m

Porto Alegre Salgado Filho

mar. 3/24

1:30 am-1:31 pm

1 stop14h 01m

$1,058

ChicagoPorto Alegre

MDW - POA

MDWPOA

Chicago Midway

mié. 2/18

12:46 pm-5:05 pm

2 stops25h 19m

Porto Alegre Salgado Filho

dom. 2/22

2:05 pm-5:45 pm

2 stops30h 40m

$1,098

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

lun. 3/2

2:22 pm-12:25 am

1 stop31h 03m

Porto Alegre Salgado Filho

jue. 3/5

1:30 am-12:04 am

1 stop25h 34m

$1,126

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Porto Alegre from

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

What is the cheapest day to depart on your flight to Porto Alegre?

Our data shows that Tuesday is the least expensive day to fly to Porto Alegre. Tickets to fly out on this day can be as low as $1,187. On the other hand, Thursday is the most expensive day to depart from Illinois because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,462.

What is the cheapest time of day to depart on your flight to Porto Alegre?

Our most recent data shows that the best time of day to fly to Porto Alegre is in the morning. Flights from Illinois to Porto Alegre during this time can be as low as $1,145. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,317 on average. Flights to Porto Alegre from Illinois in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

Direct flights

None
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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