Cheap Flights from Chicago to Porto Alegre from $820

Frequently Asked Questions

• What are the cheapest flights from Chicago to Porto Alegre (CHI-POA)?

  Based on Trip.com data, United Airlines offers one-way fares as low as $820 on Cheapest nonstop routes (e.g. ORD to POA on Wed, Dec 24), while United Airlines offers Cheapest nonstop round-trips from $1,046 departing on Tue, Jan 13 and returning on Tue, Jan 20.

• When is the best time to book flights from Chicago to Porto Alegre?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Chicago to Porto Alegre is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How can I find the best deals on flights from Chicago to Porto Alegre?

  To find best deals on flights from Chicago to Porto Alegre, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Wed, Dec 24, with one-way flights priced at just $820.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is United Airlines.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for Porto Alegre travel is around August.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Chicago (CHI) to Porto Alegre (POA) the cheapest?

  The cheapest months to fly from Chicago to Porto Alegre is December, when demand for travel is lower.

• Which upcoming date is cheapest to fly from Chicago to Porto Alegre on?

  After crunching the numbers on our December flight calendar, it's currently cheapest to fly from Chicago to Porto Alegre on December 24, 2025 with United Airlines, with prices starting at $819.

• Is there any time difference between Chicago and Porto Alegre?

  The time difference between Porto Alegre and Chicago is 3h.

• How do I change or cancel my ticket from Chicago to Porto Alegre?

  Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.