$432 Find Cheap Flights from Porto Alegre to Illinois - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Porto Alegre to Illinois departing on 10/30. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Book Cheap Porto Alegre to Illinois Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Porto Alegre to Illinois that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Porto Alegre to Illinois

Thu, Nov 5 - Wed, Nov 11
Multiple Airlines Logo
5:30 am - 10:40 pmPOA  Porto Alegre Salgado Filho-ORD Chicago O'Hare Intl
20h 10m2 stops Sao Paulo Guarulhos Intl Punta Cana
Multiple Airlines Logo
2:13 pm - 12:25 amORD  Chicago O'Hare Intl-POA Porto Alegre Salgado Filho
31h 12m1 stop Panama City Tocumen Intl
$682Multiple Airlines
Thu, Nov 5 - Wed, Nov 11
Multiple Airlines Logo
5:30 am - 10:40 pmPOA  Porto Alegre Salgado Filho-ORD Chicago O'Hare Intl
20h 10m2 stops Sao Paulo Guarulhos Intl Punta Cana
Multiple Airlines Logo
10:20 pm - 3:00 pmORD  Chicago O'Hare Intl-POA Porto Alegre Salgado Filho
37h 40m2 stops Bogotá El Dorado Sao Paulo Guarulhos Intl
$696Multiple Airlines
Thu, Oct 29 - Fri, Nov 6
Copa Airlines Logo
1:25 am - 1:05 amPOA  Porto Alegre Salgado Filho-ORD Chicago O'Hare Intl
25h 40m1 stop Panama City Tocumen Intl
Copa Airlines Logo
7:35 am - 12:25 amORD  Chicago O'Hare Intl-POA Porto Alegre Salgado Filho
13h 50m1 stop Panama City Tocumen Intl
$775Copa Airlines
Sun, Sep 13 - Wed, Sep 30
Copa Airlines Logo
1:20 am - 1:02 amPOA  Porto Alegre Salgado Filho-ORD Chicago O'Hare Intl
25h 42m1 stop Panama City Tocumen Intl
Copa Airlines Logo
3:20 pm - 12:20 amORD  Chicago O'Hare Intl-POA Porto Alegre Salgado Filho
31h 00m1 stop Panama City Tocumen Intl
$775Copa Airlines
Sun, Sep 6 - Wed, Sep 16
Copa Airlines Logo
1:20 am - 1:02 amPOA  Porto Alegre Salgado Filho-ORD Chicago O'Hare Intl
25h 42m1 stop Panama City Tocumen Intl
Copa Airlines Logo
8:01 am - 12:20 amORD  Chicago O'Hare Intl-POA Porto Alegre Salgado Filho
14h 19m1 stop Panama City Tocumen Intl
$775Copa Airlines
Sat, Sep 12 - Sat, Sep 19
Multiple Airlines Logo
4:55 pm - 10:10 pmPOA  Porto Alegre Salgado Filho-ORD Chicago O'Hare Intl
31h 15m2 stops Sao Paulo Guarulhos Intl Punta Cana
Multiple Airlines Logo
12:12 pm - 3:25 pmORD  Chicago O'Hare Intl-POA Porto Alegre Salgado Filho
25h 13m2 stops Punta Cana Sao Paulo Guarulhos Intl
$791Multiple Airlines
Sat, Sep 12 - Sat, Sep 19
Multiple Airlines Logo
4:55 pm - 10:10 pmPOA  Porto Alegre Salgado Filho-ORD Chicago O'Hare Intl
31h 15m2 stops Sao Paulo Guarulhos Intl Punta Cana
Multiple Airlines Logo
3:20 pm - 12:20 amORD  Chicago O'Hare Intl-POA Porto Alegre Salgado Filho
31h 00m1 stop Panama City Tocumen Intl
$804Multiple Airlines
Tue, Nov 3 - Tue, Nov 17
United Airlines Logo
3:25 pm - 5:15 amPOA  Porto Alegre Salgado Filho-ORD Chicago O'Hare Intl
16h 50m1 stop Sao Paulo Guarulhos Intl
United Airlines Logo
5:50 pm - 4:20 pmORD  Chicago O'Hare Intl-POA Porto Alegre Salgado Filho
19h 30m1 stop Sao Paulo Guarulhos Intl
$1,064United Airlines
Tue, Nov 3 - Tue, Nov 17
United Airlines Logo
3:25 pm - 5:15 amPOA  Porto Alegre Salgado Filho-ORD Chicago O'Hare Intl
16h 50m1 stop Sao Paulo Guarulhos Intl
United Airlines Logo
6:05 pm - 4:20 pmORD  Chicago O'Hare Intl-POA Porto Alegre Salgado Filho
19h 15m2 stops Washington, D.C. Dulles Intl Sao Paulo Guarulhos Intl
$1,064United Airlines
Wed, Sep 23 - Sun, Sep 27
United Airlines Logo
3:45 pm - 6:45 amPOA  Porto Alegre Salgado Filho-ORD Chicago O'Hare Intl
17h 00m1 stop Sao Paulo Guarulhos Intl
United Airlines Logo
2:00 pm - 2:25 pmORD  Chicago O'Hare Intl-POA Porto Alegre Salgado Filho
22h 25m2 stops Washington, D.C. Reagan-National Sao Paulo Guarulhos Intl
$1,065United Airlines
Booking Insights

KAYAK's insights & trends for Porto Alegre to Illinois flights

Get data-powered insights and trends into flights from Porto Alegre to Illinois to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Porto Alegre to Illinois?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Porto Alegre to Illinois, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Porto Alegre to Illinois is November, when tickets cost $509 (return) on average. On the other hand, the most expensive months are December and March, when the average cost of round-trip tickets is $1,362 and $1,090 respectively.

Good to know

Low season

August

Cheapest flight

$432
Best time to beat the crowds with an average 33% drop in price.
Most popular time to fly with an average 2% increase in price.
Flight from Porto Alegre to Chicago

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Porto Alegre to Illinois?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Porto Alegre to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Porto Alegre to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Porto Alegre to Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Porto Alegre to Illinois?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Porto Alegre to Illinois with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Porto Alegre to Illinois?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Porto Alegre to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Porto Alegre to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Porto Alegre to Illinois. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Porto Alegre to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.6
Copa AirlinesOverall score based on 1563 reviews
6.8Entertainment
7.8Boarding
8.1Crew
6.9Food
7.4Comfort
Airline reviews

stood in line to check in luggage for nearly an hour. very poor service and not excusable

4.0 OkayAnonymous, Jun 2026
Read more Copa Airlines reviews

stood in line to check in luggage for nearly an hour. very poor service and not excusable

Same as the previous flight as far as comfort and food. Entertainment didn’t have a watchable screen so everything would need to be watched on your own device in which they didn’t have a charging port that accommodated my iPhone. Seats were very uncomfortable. Staff was very friendly.

Do not book it’s a scam! They stole $1200 from me

Flight got delayed; had to go through security three times.

A lot things happened in this trip.The fly should be less stress.

Some of the Air hostesses are not that friendly. Need improvement

We had a great flight just wished they had a tv so we can see a movie that would of made my trip excellent.

horrible service, food was an embarrassment, no charging for cellphones, stay away

I would like a glass of wine or some kind of alcoholic drink.

Very long delay but we just made the connection. The requested wheel chairs were not there so I had to assist/carry BOTH of my parents to the gate while carrying their bags so we could make the connection. The plane had no entertainment system and NO WIFI, legroom zero. Restrooms on ALL of flights were dirty and one restroom did not even work properly. I was surprised to see COPA like this since my flight with them in 2013 was incredible, the seats were amazing and the food options were spectacular. Of course, I see this kind of service on many airlines now, with services and hospitality at an all time low. The worse part of the trip was seeing my 90 year old parents go through hell on these flights and having to try and rush to a gate to make the next flight. Never again

Like the fact that the boarding was expedited. But the delay and chaos around the onboarding was not appreciated.

Seats are complete BS for 10 hrs. The guy at counter canceled our return flight from europe. Lufthansa on the way back made United look like a trailer park gathering. If given the opportunity, I will never fly united again. Lufthansa seats werent much better to be fair but the service was a 10 out of 10. Incant express how difficult umited made my trip.

It was a great experience to fly with ANA, the sit is very comfortable.

The flight crew were very helpful. The seats were very close together. There was barely room to sit without touching the person next to you.

I’m an EP on AA every year for more than a decade but this was a very pleasant and surprising experience. Clean and sizable plane for HOU to CHI. 5 row first class. And excellent food in first class the steak option was really good. Your flight attendants even better. Seat 5A

Gluten free snack options and meals that offer both gluten free and dairy free.

Not a bad flight but a long delay boarding and taking off due to the pilot not arriving on time.

I would have preferred a flight voucher and to hop on a different flight. Delayed over 6 hours.

I so appreciate the crew members on each flight of United. They are outstanding.

Very modern plane. Good seat spacing. Meals were good. Screens had tons of movies and worked

Everything you need to know for your flight from Porto Alegre to Illinois

Information on your arrival and departure airports