$472 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 11/29. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Illinois

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Porto Alegre to Illinois, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Porto Alegre to Illinois, as well as popular online travel agencies
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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

Sat, Sep 26 - Thu, Oct 1
Multiple Airlines Logo
6:30 pm - 9:20 pm
POA
-
ORD
28h 50m
2 stops
Multiple Airlines Logo
11:20 pm - 8:30 pm
ORD
-
POA
19h 10m
2 stops
$789Multiple Airlines
Tue, Sep 8 - Tue, Sep 15
GOL Logo
9:15 pm - 9:20 pm
POA
-
ORD
26h 05m
2 stops
GOL Logo
11:20 pm - 12:40 am
ORD
-
POA
23h 20m
2 stops
$790GOL
Wed, Oct 14 - Wed, Oct 21
GOL Logo
7:40 pm - 9:20 pm
POA
-
ORD
27h 40m
2 stops
GOL Logo
11:20 pm - 8:35 pm
ORD
-
POA
19h 15m
2 stops
$794GOL
Sat, Sep 12 - Sun, Sep 20
Multiple Airlines Logo
6:30 pm - 9:20 pm
POA
-
ORD
28h 50m
2 stops
Multiple Airlines Logo
8:01 am - 12:20 am
ORD
-
POA
14h 19m
1 stop
$815Multiple Airlines
Mon, Sep 14 - Wed, Sep 30
GOL Logo
4:40 am - 9:29 am
POA
-
ORD
30h 49m
2 stops
GOL Logo
11:20 pm - 8:35 pm
ORD
-
POA
19h 15m
2 stops
$820GOL
Mon, Sep 14 - Wed, Sep 30
GOL Logo
4:40 am - 9:29 am
POA
-
ORD
30h 49m
2 stops
GOL Logo
11:20 pm - 8:35 pm
ORD
-
POA
19h 15m
2 stops
$821GOL
Tue, Nov 3 - Tue, Nov 17
Multiple Airlines Logo
7:40 pm - 8:20 pm
POA
-
ORD
27h 40m
2 stops
Multiple Airlines Logo
10:20 pm - 11:55 pm
ORD
-
POA
22h 35m
2 stops
$826Multiple Airlines
Tue, Nov 3 - Tue, Nov 17
Multiple Airlines Logo
7:40 pm - 8:20 pm
POA
-
ORD
27h 40m
2 stops
Multiple Airlines Logo
10:20 pm - 11:55 pm
ORD
-
POA
22h 35m
2 stops
$827Multiple Airlines
Fri, Aug 7 - Sun, Aug 16
Multiple Airlines Logo
6:25 pm - 9:20 pm
POA
-
ORD
28h 55m
2 stops
Multiple Airlines Logo
3:21 pm - 12:15 am
ORD
-
POA
30h 54m
1 stop
$831Multiple Airlines
Thu, Nov 12 - Mon, Nov 16
United Airlines Logo
2:05 pm - 1:50 pm
POA
-
BMI
26h 45m
2 stops
United Airlines Logo
9:45 am - 2:05 pm
BMI
-
POA
25h 20m
2 stops
$1,385United 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 December, when tickets cost $0 (return) on average. On the other hand, the most expensive months are March and May, when the average cost of round-trip tickets is $924 and $840 respectively.

Good to know

Low seasonFebruary
Cheapest flight$472
Best time to beat the crowds with an average 24% drop in price.
Most popular time to fly and prices are also 2% lower on average.
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 1568 reviews
8.1Crew
7.4Comfort
7.8Boarding
6.9Food
6.8Entertainment
Airline reviews

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

4.0 OkayAnonymous, Jun 2026
PTY - AUS
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.

I was flying business class, and the French fellow passengers were super noisy. It was not a comfortable flight. And the crew was not helpful.

Entire experience from check in to landing was amazing the flight crew was excellent and friendly. Seats were comfortable.

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

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

Copa staff at PTY and one particular crew member were unhelpful & rude.

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

I always enjoy flying Copa. There are very few airlines where I can enjoy a comfortable sleep in-flight. The snacks weren't the best, but they sufficed. The in-flight entertainment was fantastic, and I crossed another movie off my watch list.

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

Awful. Delayed flights, missed connection to Toronto. Hotel vouchers were for already booked hotels x3. Giant waste of my time

Boarding was great, and the crew were very friendly. The seats must have been a bit on the older side and you could feel some of the seat components through the padding. Also, the plugs did not work on the row's entertainment screen or charging ports. Checked bag was transferred for connecting flight, and we appreciated how early we had the connecting gate information.

Very easy ! Use the kiosk and bag drop and right to security within 10 min

Prefer not to have an almost 3 hour delay with useless communication that wasn't accurate.

Over 5 hour delay with minimal updates or ability to standby for alternative flights. During boarding and 1 hr+ wait for takeoff, seats were drenched w water from air conditioning condensation and always leftover crumbs on carpet and seats

I flew from Barcelona to Chicago on UA yesterday. The flight was on time, the pilots did a great job and the flight attendants were super nice. All of them. Also food was good, and the drinks, including wine were served a few times during our flight. I highly recommend this airline.

Boarded early, left early, arrived 40 mins early! A win win for me!

These airplanes should be illegal. The seats are two tight, it is a safety issue. Wheelchair support was ridiculously slow. We almost missed our flight.

This flight is a quick way to get to Chicago, but a bit expensive.

The clerk at check in for my bags was very rude. My credit card was hacked during my vacation and she told me it was not possible to pay in cash for my bag. “You bought the cheapest ticket, you should have bought a ticket that included a bag. If you cannot pay with a credit card, we will not let you on this flight”. She spoke to her supervisor and then told me , I could ask other passengers, if they would use their credit card to check my bag. I had to beg 5 different people, till one agreed to use their credit card. I payed them cash of course. This was a very stressful and humiliating experience for me. I strongly suggest you build in some kind of provision for travelers who got robbed.

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

Information on your arrival and departure airports