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Cheap flights from Chicago O'Hare Intl Airport to Porto Alegre from $756

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago O'Hare Intl Airport to Porto Alegre departing on 3/3. 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 Chicago O'Hare Intl Airport to Porto Alegre

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
7:15 am - 4:25 pm
ORD
-
POA
30h 10m2 stops
Air Canada Logo
3:25 pm - 11:18 am
POA
-
ORD
21h 53m2 stops
$756Air Canada
Tue, Mar 3 - Wed, Mar 25
GOL Logo
10:20 pm - 11:40 pm
ORD
-
POA
22h 20m2 stops
GOL Logo
9:20 pm - 8:20 pm
POA
-
ORD
26h 00m2 stops
$758GOL
Wed, Jan 14 - Thu, Jan 29
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
$809Copa Airlines
Tue, Mar 3 - Tue, Mar 24
LATAM Airlines Logo
2:46 pm - 5:00 pm
ORD
-
POA
23h 14m2 stops
LATAM Airlines Logo
2:50 pm - 10:00 am
POA
-
ORD
21h 10m2 stops
$821LATAM Airlines
Tue, Mar 3 - Wed, Mar 25
United Airlines Logo
3:50 pm - 2:20 pm
ORD
-
POA
19h 30m2 stops
United Airlines Logo
5:10 pm - 7:00 am
POA
-
ORD
15h 50m1 stop
$831United Airlines
Tue, Mar 3 - Wed, Mar 25
United Airlines Logo
3:50 pm - 4:20 pm
ORD
-
POA
21h 30m2 stops
United Airlines Logo
5:10 pm - 7:00 am
POA
-
ORD
15h 50m1 stop
$833United Airlines
Tue, Mar 3 - Wed, Mar 25
Copa Airlines Logo
7:35 am - 12:30 am
ORD
-
POA
13h 55m1 stop
Copa Airlines Logo
1:45 am - 12:46 pm
POA
-
ORD
14h 01m1 stop
$977Copa Airlines
Wed, Jan 14 - Wed, Jan 28
United Airlines Logo
8:45 am - 11:40 am
ORD
-
POA
47h 55m2 stops
United Airlines Logo
2:00 pm - 5:30 am
POA
-
ORD
18h 30m1 stop
$993United Airlines
Wed, Jan 14 - Thu, Jan 29

Copa Airlines flights from Chicago O'Hare Intl Airport to Porto Alegre

Our best Copa Airlines deals on Chicago O'Hare Intl Airport to Porto Alegre flight tickets
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
$809
Find similar
Copa Airlines
Jan 14
ORD7:35 amChicago O'Hare Intl
13h 55m
1 stop
POA12:30 amPorto Alegre Salgado Filho
Jan 28
POA1:45 amPorto Alegre Salgado Filho
14h 01m
1 stop
ORD12:46 pmChicago O'Hare Intl
$977
Find similar

United Airlines flights from Chicago O'Hare Intl Airport to Porto Alegre

Our best United Airlines deals on Chicago O'Hare Intl Airport to Porto Alegre flight tickets
United Airlines
Mar 3
ORD3:50 pmChicago O'Hare Intl
19h 30m
2 stops
POA2:20 pmPorto Alegre Salgado Filho
Mar 25
POA5:10 pmPorto Alegre Salgado Filho
15h 50m
1 stop
ORD7:00 amChicago O'Hare Intl
$831
Find similar
United Airlines
Mar 3
ORD3:50 pmChicago O'Hare Intl
21h 30m
2 stops
POA4:20 pmPorto Alegre Salgado Filho
Mar 25
POA5:10 pmPorto Alegre Salgado Filho
15h 50m
1 stop
ORD7:00 amChicago O'Hare Intl
$833
Find similar
United Airlines
Jan 14
ORD8:45 amChicago O'Hare Intl
47h 55m
2 stops
POA11:40 amPorto Alegre Salgado Filho
Jan 29
POA2:00 pmPorto Alegre Salgado Filho
18h 30m
1 stop
ORD5:30 amChicago O'Hare Intl
$993
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport 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 December 22, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport 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

Tue 3/3

7:15 am-4:25 pm

2 stops30h 10m

Porto Alegre Salgado Filho

Wed 3/25

3:25 pm-11:18 am

2 stops21h 53m

$756

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Wed 1/14

10:20 pm-11:40 pm

2 stops22h 20m

Porto Alegre Salgado Filho

Thu 1/29

9:20 pm-8:20 pm

2 stops26h 00m

$758

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

$809

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Tue 3/3

2:46 pm-5:00 pm

2 stops23h 14m

Porto Alegre Salgado Filho

Wed 3/25

2:50 pm-10:00 am

2 stops21h 10m

$821

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Tue 3/3

3:50 pm-2:20 pm

2 stops19h 30m

Porto Alegre Salgado Filho

Wed 3/25

5:10 pm-7:00 am

1 stop15h 50m

$831

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Tue 3/3

3:50 pm-4:20 pm

2 stops21h 30m

Porto Alegre Salgado Filho

Wed 3/25

5:10 pm-7:00 am

1 stop15h 50m

$833

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Wed 1/14

7:35 am-12:30 am

1 stop13h 55m

Porto Alegre Salgado Filho

Wed 1/28

1:45 am-12:46 pm

1 stop14h 01m

$977

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Wed 1/14

8:45 am-11:40 am

2 stops47h 55m

Porto Alegre Salgado Filho

Thu 1/29

2:00 pm-5:30 am

1 stop18h 30m

$993

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Porto Alegre from

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport 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 Chicago O'Hare Intl Airport 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 Chicago O'Hare Intl Airport 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 Chicago O'Hare Intl Airport in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

When to book flights from Chicago O'Hare Intl Airport to Porto Alegre

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago O'Hare Intl Airport to Porto Alegre according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chicago O'Hare Intl Airport to Porto Alegre (ORD to POA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Porto Alegre

Fastest flight time

16h 50m

Direct flights

None
The fastest flight from Chicago O'Hare Intl Airport to Porto Alegre takes 16h 50m
There are no direct flights from Chicago O'Hare Intl Airport to Porto Alegre. There are no popular flight routes from Chicago O'Hare Intl Airport to Porto Alegre.
Search flight deals

  • How far is Chicago O'Hare Intl to Porto Alegre Salgado Filho by plane?

    Porto Alegre Salgado Filho is 5492.6 mi away from Chicago O'Hare Intl. In terms of flight time, this usually takes a little over 16h 50m.

  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Porto Alegre Salgado Filho Airport?

    Prices for flights from Chicago O'Hare Intl Airport to Porto Alegre Salgado Filho Airport are updated daily.

  • How old do you have to be to fly from Chicago O'Hare Intl Airport 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 Chicago O'Hare Intl Airport to Porto Alegre Salgado Filho Airport.

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

    The travel and health documents you'll need for your trip to Porto Alegre Salgado Filho Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Porto Alegre Salgado Filho Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Chicago to Porto Alegre. Millions of users trust and use momondo every year so you are in good hands.

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

Flights from Chicago to Porto Alegre with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Chicago to Porto Alegre.

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

Yes. momondo can track prices for Chicago 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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