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Cheap Flights from Chicago (ORD) to Porto Alegre (POA)

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      Travellers and cabin class, 1 Adult, Economy

      Compare Chicago O'Hare International to Porto Alegre flight deals

      Find the cheapest month or even day of the year to fly to Porto Alegre

      Book the best Porto Alegre fare with no extra fees

      Flight deals from Chicago O'Hare International to Porto Alegre

      Looking for a cheap last-minute deal or the best return flight from Chicago O'Hare International Airport to Porto Alegre Airport? If you want to travel next month, return fares start from $1,352. Find the lowest prices on one-way and return tickets right here.
      Porto Alegre.$1,324 per passenger.Departing Mon, 9 Nov, returning Mon, 23 Nov.Return flight with Copa.Outbound indirect flight with Copa, departs from Chicago O'Hare International on Mon, 9 Nov, arriving in Porto Alegre.Inbound indirect flight with Copa, departs from Porto Alegre on Mon, 23 Nov, arriving in Chicago O'Hare International.Price includes taxes and charges.From $1,324, select.
      Porto Alegre.$1,324 per passenger.Departing Fri, 23 Oct, returning Thu, 5 Nov.Return flight with Copa.Outbound indirect flight with Copa, departs from Chicago O'Hare International on Fri, 23 Oct, arriving in Porto Alegre.Inbound indirect flight with Copa, departs from Porto Alegre on Thu, 5 Nov, arriving in Chicago O'Hare International.Price includes taxes and charges.From $1,324, select.
      Porto Alegre.$1,325 per passenger.Departing Fri, 2 Apr, returning Fri, 9 Apr.Return flight with Copa.Outbound indirect flight with Copa, departs from Chicago O'Hare International on Fri, 2 Apr, arriving in Porto Alegre.Inbound indirect flight with Copa, departs from Porto Alegre on Fri, 9 Apr, arriving in Chicago O'Hare International.Price includes taxes and charges.From $1,325, select.
      Porto Alegre.$1,353 per passenger.Departing Tue, 13 Oct, returning Mon, 19 Oct.Return flight with Copa.Outbound indirect flight with Copa, departs from Chicago O'Hare International on Tue, 13 Oct, arriving in Porto Alegre.Inbound indirect flight with Copa, departs from Porto Alegre on Mon, 19 Oct, arriving in Chicago O'Hare International.Price includes taxes and charges.From $1,353, select.
      Porto Alegre.$1,620 per passenger.Departing Sat, 19 Sep, returning Sat, 26 Sep.Return flight with Copa.Outbound indirect flight with Copa, departs from Chicago O'Hare International on Sat, 19 Sep, arriving in Porto Alegre.Inbound indirect flight with Copa, departs from Porto Alegre on Sat, 26 Sep, arriving in Chicago O'Hare International.Price includes taxes and charges.From $1,620, select.
      Porto Alegre.$1,634 per passenger.Departing Sun, 29 Nov, returning Wed, 30 Dec.Return flight with Copa.Outbound indirect flight with Copa, departs from Chicago O'Hare International on Sun, 29 Nov, arriving in Porto Alegre.Inbound indirect flight with Copa, departs from Porto Alegre on Wed, 30 Dec, arriving in Chicago O'Hare International.Price includes taxes and charges.From $1,634, select.
      Porto Alegre.$1,786 per passenger.Departing Wed, 23 Dec, returning Wed, 27 Jan.Return flight with United and Azul Airlines.Outbound indirect flight with United, departs from Chicago O'Hare International on Wed, 23 Dec, arriving in Porto Alegre.Inbound indirect flight with Azul Airlines, departs from Porto Alegre on Wed, 27 Jan, arriving in Chicago O'Hare International.Price includes taxes and charges.From $1,786, select.
      Porto Alegre.$2,091 per passenger.Departing Mon, 30 Nov, returning Thu, 7 Jan.Return flight with Copa.Outbound indirect flight with Copa, departs from Chicago O'Hare International on Mon, 30 Nov, arriving in Porto Alegre.Inbound indirect flight with Copa, departs from Porto Alegre on Thu, 7 Jan, arriving in Chicago O'Hare International.Price includes taxes and charges.From $2,091, select.
      Porto Alegre.$2,330 per passenger.Departing Tue, 20 Jul, returning Wed, 28 Jul.Return flight with Copa.Outbound indirect flight with Copa, departs from Chicago O'Hare International on Tue, 20 Jul, arriving in Porto Alegre.Inbound indirect flight with Copa, departs from Porto Alegre on Wed, 28 Jul, arriving in Chicago O'Hare International.Price includes taxes and charges.From $2,330, select.
      How did we find these deals? The deals you see here are the lowest prices for flight tickets from Chicago O'Hare International to Porto Alegre found in the last 4 days, and are subject to change and availability.

      Find the cheapest month to fly from Chicago O'Hare International to Porto Alegre

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Chicago O'Hare International to Porto Alegre flights are currently cheapest in November.
      Sep
      from $1,619
      Oct
      from $1,352
      Nov
      from $1,323
      Dec
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      Jan
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      Feb
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      Mar
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      Apr
      from $1,324
      May
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      Jun
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      Jul
      from $2,328
      Aug
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      Chicago O'Hare International to Porto Alegre: Alternative routes

      Compare routes from Chicago O'Hare International to Porto Alegre below. You may find an airport to fly into that's cheaper, faster, or easier than Porto Alegre.

      Porto Alegre

      7km from central Porto Alegre
      ClosestCheapest
      from $1,324
      Search flights

      Chicago to Porto Alegre: Flight information

      The things to know before you go.
      Cheapest flight found$1,323
      Cheapest month to flyNovember

      Finding cheap flights from Chicago O'Hare International to Porto Alegre: Frequently asked questions

      The best price we found for a return flight from Chicago O'Hare International to Porto Alegre is $1,323. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
      Currently, there are no airlines that fly direct from Chicago O'Hare International to Porto Alegre. But we found flights with one or more stops from $1,323.
      As of September 2026, there are no flights flying from Chicago O'Hare International to Porto Alegre.
      The cheapest month to fly from Chicago O'Hare International to Porto Alegre is usually November.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Chicago O'Hare International Airport to Porto Alegre Airport on Monday, 9 November 2026.
      No airlines currently offer direct flights between Chicago O'Hare International Airport and Porto Alegre Airport. Most routes have one or more stops.
      We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Porto Alegre but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

      We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Porto Alegre is around 40 days in advance, so don’t leave your flight to the last minute.

      Currently, Copa offers the cheapest flight tickets to Porto Alegre.

      Travelling from Chicago O'Hare International Airport (ORD) to Porto Alegre Airport (POA): what you need to know

      • The timezone in Porto Alegre is UTC-3, which is three hours ahead of Chicago.

      • Give yourself plenty of time to make your ORD to POA flight. As a general rule, turn up two hours before international departures and an hour ahead for domestic flights.

      • During popular months such as July, you'll want to get to the airport earlier than normal. Plan to arrive two hours before domestic departures and four hours ahead of an international flight when you travel during peak periods in general.

      • If you'd love to discover a new city along the way, look for a flight with a stopover. To see your options for tickets from Chicago O'Hare International Airport to Porto Alegre Airport, deselect 'Direct flights only.' Panama City Tocumen International Airport is a well-known stop between ORD and POA.

      How to find the cheapest flights from Chicago O'Hare International Airport (ORD) to Porto Alegre Airport (POA)

      • The lowest price we've found for a one-way Chicago O'Hare International Airport to Porto Alegre Airport flight is $799. A return plane ticket is currently $1,323. Depending on the availability when you book, these fares may change.

      • To score cheap tickets from ORD to POA, book in advance. Airlines tend to offer their most competitively priced fares when flights are first released.

      • Getting cheap flights from Chicago O'Hare International Airport to Porto Alegre Airport is easier if you're flexible with your travel dates. Use the 'Whole month' search tool to see the lowest fares across each month and land a great deal.

      • Never miss a deal on cheap flights from ORD to POA by creating a Price Alert. You'll get an email or push notification on the app when a new low fare is offered.

      • Choose your ideal departure and arrival times, airlines and number of stops with the filters. Or sort your results by 'Cheapest' to see the best deals on flights from Chicago O'Hare International Airport to Porto Alegre Airport.

      Handy information about Chicago O'Hare International Airport (ORD)

      • The address for ORD is 10000 West O'Hare.

      • 70% of flights that depart Chicago O'Hare International Airport land at their destination on time.

      • To get to Chicago O'Hare International Airport from central Chicago, it'll take about 30 minutes if you're travelling by car. This depends on traffic though. It's approximately 27 kilometres from the airport to the city centre.

      • Taking public transport? Expect a journey time of around 45 minutes.

      • Get your holiday off to a leisurely start by staying near ORD. Whether you're boarding an early flight from Chicago O'Hare International Airport to Porto Alegre Airport or just don't want to be rushed, these stays are the answer:

      Arriving at Porto Alegre Airport (POA)

      Getting from Porto Alegre Airport (POA) to central Porto Alegre

      • Porto Alegre Airport to central Porto Alegre has a drive time of about 20 minutes. It's approximately 10 kilometres away.

      • If you're taking public transport, expect a journey time of around 35 minutes.

      When to fly to Porto Alegre Airport (POA)

      • The quietest month for a flight from Chicago O'Hare International Airport to Porto Alegre Airport is March, while August is the most popular. Choose the best time to visit Porto Alegre based on whether you prefer a more relaxed vibe or a faster pace.

      • Book your flight from Chicago O'Hare International Airport to Porto Alegre Airport for February if you'd like to visit Porto Alegre during its warmest month. Expect temperatures of between 19ºC (66ºF) and 34ºC (93ºF).

      • If you'd rather travel in cooler conditions, look for a cheap ticket from ORD to POA in July. Temperatures average between 8ºC (46ºF) and 23ºC (73ºF) then.

      Explore more of Brazil

      • Joinville is just one of the many cities in Brazil waiting to be explored once you've taken in the sights of Porto Alegre. Around 483 kilometres away to the north-east, its top attractions include Water park, Parque Zoobotanico and Museu da Dança.

      • If you want to check out another major destination in Brazil, consider Florianopolis, roughly 370 kilometres north-east of Porto Alegre. Joaquina beach, Dunes of Joaquina and Praia do Novo Campeche are key reasons to visit.

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      Plan the rest of your trip from Chicago to Porto Alegre

      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.