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Cheap flights from Chicago O'Hare Intl Airport to Porto Alegre from $422

This is the cheapest one-way 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 8/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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

Avianca Logo
2:35 pm - 7:05 pmORD-POA
50h 30m2 stops
Avianca Logo
11:05 am - 1:15 pmPOA-ORD
52h 10m2 stops
$737Avianca
Find Deal
Fri, Sep 12 - Fri, Sep 19
Logo
2:35 pm - 7:05 pmORD-POA
50h 30m2 stops
Logo
9:45 am - 9:58 pmPOA-ORD
38h 13m3 stops
$742
Find Deal
Fri, Sep 12 - Fri, Sep 19
Logo
6:30 am - 9:50 amORD-POA
25h 20m3 stops
Logo
11:30 am - 9:58 pmPOA-ORD
36h 28m3 stops
$751
Find Deal
Fri, Sep 12 - Fri, Sep 19
Logo
9:15 pm - 4:05 pmORD-POA
16h 50m1 stop
Logo
11:30 am - 6:45 amPOA-ORD
21h 15m1 stop
$1,060
Find Deal
Fri, Sep 12 - Fri, Sep 19
United Airlines Logo
9:15 pm - 4:05 pmORD-POA
16h 50m1 stop
United Airlines Logo
1:55 pm - 5:00 pmPOA-ORD
29h 05m2 stops
$1,070United Airlines
Find Deal
Fri, Sep 12 - Fri, Sep 19
Copa Airlines Logo
8:02 am - 12:20 amORD-POA
14h 18m1 stop
Copa Airlines Logo
1:27 am - 12:21 amPOA-ORD
24h 54m1 stop
$1,075Copa Airlines
Find Deal
Fri, Sep 12 - Thu, Sep 18
Copa Airlines Logo
3:07 pm - 4:05 pmORD-POA
22h 58m2 stops
Copa Airlines Logo
1:27 am - 12:21 amPOA-ORD
24h 54m1 stop
$1,114Copa Airlines
Find Deal
Fri, Sep 12 - Thu, Sep 18
United Airlines Logo
9:20 pm - 10:45 amORD-POA
35h 25m1 stop
United Airlines Logo
3:10 pm - 6:45 amPOA-ORD
17h 35m1 stop
$1,247United Airlines
Find Deal
Sat, Aug 16 - Sun, Aug 24
United Airlines Logo
9:20 pm - 2:30 pmORD-POA
15h 10m1 stop
United Airlines Logo
3:10 pm - 6:45 amPOA-ORD
17h 35m1 stop
$1,251United Airlines
Find Deal
Sat, Aug 16 - Sun, Aug 24
Delta Logo
7:05 am - 6:25 amORD-POA
21h 20m2 stops
Delta Logo
6:40 am - 9:35 pmPOA-ORD
16h 55m2 stops
$1,339Delta
Find Deal
Sat, Aug 16 - Sun, Aug 24

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
Sep 12
ORD9:15 pmChicago O'Hare Intl
16h 50m
1 stop
POA4:05 pmPorto Alegre Salgado Filho
Sep 19
POA1:55 pmPorto Alegre Salgado Filho
29h 05m
2 stops
ORD5:00 pmChicago O'Hare Intl
$1,070
Find similar
United Airlines
Aug 16
ORD9:20 pmChicago O'Hare Intl
35h 25m
1 stop
POA10:45 amPorto Alegre Salgado Filho
Aug 24
POA3:10 pmPorto Alegre Salgado Filho
17h 35m
1 stop
ORD6:45 amChicago O'Hare Intl
$1,247
Find similar
United Airlines
Aug 16
ORD9:20 pmChicago O'Hare Intl
15h 10m
1 stop
POA2:30 pmPorto Alegre Salgado Filho
Aug 24
POA3:10 pmPorto Alegre Salgado Filho
17h 35m
1 stop
ORD6:45 amChicago O'Hare Intl
$1,251
Find similar

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
Sep 12
ORD8:02 amChicago O'Hare Intl
14h 18m
1 stop
POA12:20 amPorto Alegre Salgado Filho
Sep 18
POA1:27 amPorto Alegre Salgado Filho
24h 54m
1 stop
ORD12:21 amChicago O'Hare Intl
$1,075
Find similar
Copa Airlines
Sep 12
ORD3:07 pmChicago O'Hare Intl
22h 58m
2 stops
POA4:05 pmPorto Alegre Salgado Filho
Sep 18
POA1:27 amPorto Alegre Salgado Filho
24h 54m
1 stop
ORD12:21 amChicago O'Hare Intl
$1,114
Find similar
Copa Airlines
Aug 6
ORD7:55 amChicago O'Hare Intl
14h 20m
1 stop
POA12:15 amPorto Alegre Salgado Filho
Aug 29
POA1:20 amPorto Alegre Salgado Filho
14h 21m
1 stop
ORD1:41 pmChicago O'Hare Intl
$1,520
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 July 31, 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

Fri 9/12

2:35 pm-7:05 pm

2 stops50h 30m

Porto Alegre Salgado Filho

Fri 9/19

11:05 am-1:15 pm

2 stops52h 10m

$737

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Fri 9/12

2:35 pm-7:05 pm

2 stops50h 30m

Porto Alegre Salgado Filho

Fri 9/19

9:45 am-9:58 pm

3 stops38h 13m

$742

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Fri 9/12

6:30 am-9:50 am

3 stops25h 20m

Porto Alegre Salgado Filho

Fri 9/19

11:30 am-9:58 pm

3 stops36h 28m

$751

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Fri 9/12

9:15 pm-4:05 pm

1 stop16h 50m

Porto Alegre Salgado Filho

Fri 9/19

11:30 am-6:45 am

1 stop21h 15m

$1,060

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Fri 9/12

9:15 pm-4:05 pm

1 stop16h 50m

Porto Alegre Salgado Filho

Fri 9/19

1:55 pm-5:00 pm

2 stops29h 05m

$1,070

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Fri 9/12

8:02 am-12:20 am

1 stop14h 18m

Porto Alegre Salgado Filho

Thu 9/18

1:27 am-12:21 am

1 stop24h 54m

$1,075

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Fri 9/12

3:07 pm-4:05 pm

2 stops22h 58m

Porto Alegre Salgado Filho

Thu 9/18

1:27 am-12:21 am

1 stop24h 54m

$1,114

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Sat 8/16

9:20 pm-10:45 am

1 stop35h 25m

Porto Alegre Salgado Filho

Sun 8/24

3:10 pm-6:45 am

1 stop17h 35m

$1,247

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Sat 8/16

9:20 pm-2:30 pm

1 stop15h 10m

Porto Alegre Salgado Filho

Sun 8/24

3:10 pm-6:45 am

1 stop17h 35m

$1,251

ChicagoPorto Alegre

ORD - POA

ORDPOA

Chicago O'Hare Intl

Sat 8/16

7:05 am-6:25 am

2 stops21h 20m

Porto Alegre Salgado Filho

Sun 8/24

6:40 am-9:35 pm

2 stops16h 55m

$1,339

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
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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

Best Price Found

$422

Fastest flight time

14h 18m

Direct flights

None

Airports in Porto Alegre

1 airport
The best one-way flight to Porto Alegre from Chicago O'Hare Intl Airport in the past 72 hours is $422. The best round-trip flight deal from Chicago O'Hare Intl Airport to Porto Alegre found on momondo in the last 72 hours is $737.
The fastest flight from Chicago O'Hare Intl Airport to Porto Alegre takes 14h 18m
There are no direct flights from Chicago O'Hare Intl Airport to Porto Alegre. Popular non-direct route for this connection is Chicago O'Hare Intl Airport - Porto Alegre Salgado Filho Airport.
There is 1 airport near Porto Alegre: Porto Alegre Salgado Filho (POA)
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  • 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 14h 18m.

  • 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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