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Cheap Flights from Chicago to Porto Alegre

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      Travellers and cabin class, 1 Adult, Economy

      Compare Chicago 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 to Porto Alegre

      Looking for a cheap last-minute deal or the best return flight from Chicago to Porto Alegre Airport? If you want to travel next month, return fares start from $1,428. Find the lowest prices on one-way and return tickets right here.
      Porto Alegre.$1,158 per passenger.Departing Fri, 30 Oct, returning Fri, 6 Nov.Return flight with Copa.Outbound indirect flight with Copa, departs from Chicago O'Hare International on Fri, 30 Oct, arriving in Porto Alegre.Inbound indirect flight with Copa, departs from Porto Alegre on Fri, 6 Nov, arriving in Chicago O'Hare International.Price includes taxes and charges.From $1,158, select.
      Porto Alegre.$1,328 per passenger.Departing Fri, 25 Sep, returning Fri, 2 Oct.Return flight with Copa.Outbound indirect flight with Copa, departs from Chicago O'Hare International on Fri, 25 Sep, arriving in Porto Alegre.Inbound indirect flight with Copa, departs from Porto Alegre on Fri, 2 Oct, arriving in Chicago O'Hare International.Price includes taxes and charges.From $1,328, select.
      Porto Alegre.$1,391 per passenger.Departing Thu, 1 Oct, returning Sat, 17 Oct.Return flight with Copa.Outbound indirect flight with Copa, departs from Chicago O'Hare International on Thu, 1 Oct, arriving in Porto Alegre.Inbound indirect flight with Copa, departs from Porto Alegre on Sat, 17 Oct, arriving in Chicago O'Hare International.Price includes taxes and charges.From $1,391, select.
      Porto Alegre.$1,425 per passenger.Departing Mon, 9 Nov, returning Wed, 25 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 Wed, 25 Nov, arriving in Chicago O'Hare International.Price includes taxes and charges.From $1,425, select.
      Porto Alegre.$1,427 per passenger.Departing Wed, 23 Sep, returning Wed, 30 Sep.Return flight with Copa.Outbound indirect flight with Copa, departs from Chicago O'Hare International on Wed, 23 Sep, arriving in Porto Alegre.Inbound indirect flight with Copa, departs from Porto Alegre on Wed, 30 Sep, arriving in Chicago O'Hare International.Price includes taxes and charges.From $1,427, select.
      Porto Alegre.$1,427 per passenger.Departing Thu, 8 Apr, returning Sat, 1 May.Return flight with Copa.Outbound indirect flight with Copa, departs from Chicago O'Hare International on Thu, 8 Apr, arriving in Porto Alegre.Inbound indirect flight with Copa, departs from Porto Alegre on Sat, 1 May, arriving in Chicago O'Hare International.Price includes taxes and charges.From $1,427, select.
      Porto Alegre.$1,439 per passenger.Departing Fri, 15 Jan, returning Thu, 28 Jan.Return flight with United and Azul Airlines.Outbound indirect flight with United, departs from Chicago O'Hare International on Fri, 15 Jan, arriving in Porto Alegre.Inbound indirect flight with Azul Airlines, departs from Porto Alegre on Thu, 28 Jan, arriving in Chicago O'Hare International.Price includes taxes and charges.From $1,439, select.
      Porto Alegre.$1,445 per passenger.Departing Fri, 15 Jan, returning Mon, 1 Feb.Return flight with United and GOL Linhas Aéreas.Outbound indirect flight with United, departs from Chicago O'Hare International on Fri, 15 Jan, arriving in Porto Alegre.Inbound indirect flight with GOL Linhas Aéreas, departs from Porto Alegre on Mon, 1 Feb, arriving in Chicago O'Hare International.Price includes taxes and charges.From $1,445, select.
      Porto Alegre.$1,447 per passenger.Departing Thu, 25 Feb, returning Mon, 8 Mar.Return flight with LATAM Airlines.Outbound indirect flight with LATAM Airlines, departs from Chicago O'Hare International on Thu, 25 Feb, arriving in Porto Alegre.Inbound indirect flight with LATAM Airlines, departs from Porto Alegre on Mon, 8 Mar, arriving in Chicago Midway.Price includes taxes and charges.From $1,447, select.
      Porto Alegre.$1,689 per passenger.Departing Sun, 15 Nov, returning Sat, 16 Jan.Return flight with Copa.Outbound indirect flight with Copa, departs from Chicago O'Hare International on Sun, 15 Nov, arriving in Porto Alegre.Inbound indirect flight with Copa, departs from Porto Alegre on Sat, 16 Jan, arriving in Chicago O'Hare International.Price includes taxes and charges.From $1,689, select.
      Porto Alegre.$2,129 per passenger.Departing Sun, 23 Aug, returning Sun, 30 Aug.Return flight with United.Outbound indirect flight with United, departs from Chicago O'Hare International on Sun, 23 Aug, arriving in Porto Alegre.Inbound indirect flight with United, departs from Porto Alegre on Sun, 30 Aug, arriving in Chicago O'Hare International.Price includes taxes and charges.From $2,129, select.
      Porto Alegre.$2,448 per passenger.Departing Tue, 22 Dec, returning Sat, 23 Jan.Return flight with LATAM Airlines.Outbound indirect flight with LATAM Airlines, departs from Chicago Midway on Tue, 22 Dec, arriving in Porto Alegre.Inbound indirect flight with LATAM Airlines, departs from Porto Alegre on Sat, 23 Jan, arriving in Chicago Midway.Price includes taxes and charges.From $2,448, select.

      Find the cheapest month to fly from Chicago to Porto Alegre

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Chicago to Porto Alegre flights are currently cheapest in October.
      Aug
      from $2,132
      Sep
      from $1,428
      Oct
      from $1,393
      Nov
      from $1,427
      Dec
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      Jan
      from $1,441
      Feb
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      Mar
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      Apr
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      May
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      Jun
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      Jul
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      Chicago to Porto Alegre: Alternative routes

      Compare routes from Chicago 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 $1,158
      Search flights

      Chicago to Porto Alegre: Flight information

      The things to know before you go.
      Cheapest flight found$1,160
      Cheapest month to flyOctober

      Finding cheap flights from Chicago to Porto Alegre: Frequently asked questions

      The best price we found for a return flight from Chicago to Porto Alegre is $1,158. 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 to Porto Alegre. But we found flights with one stop from $1,160.
      As of August 2026, there are no flights flying from Chicago to Porto Alegre.
      The cheapest month to fly from Chicago to Porto Alegre is usually October.
      After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Chicago to Porto Alegre Airport on Friday, 30 October 2026.
      No airlines currently offer direct flights between Chicago 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.

      The cheapest airline that flies to Porto Alegre is Copa .

      Flying from Chicago to Porto Alegre Salgado Filho International Airport (POA): What you need to know

      • The timezone in Porto Alegre is UTC-3, which is three hours ahead of Chicago. Porto Alegre Salgado Filho International Airport is located in Porto Alegre.

      • To ensure you catch your flight from Chicago to POA, leave plenty of time to check in and drop off your luggage. Turning up two hours before international departures and an hour before domestic flights is the standard rule.

      • With more people on the move during busy months like July, get to the terminal earlier than usual. Two hours for domestic flights and up to four for international journeys will help you deal with any delays. Remember things also get busy during major holidays like Thanksgiving.

      Airports in Chicago

      Chicago O'Hare International Airport (ORD)

      • Whether you're hoping to visit a new city along the way or just take a break, we make it easy to book a flight with a stopover. To check out your options leaving from Chicago O'Hare International Airport (ORD), deselect 'Direct flights only.' Panama City Tocumen International Airport (PTY) is a stop you can make when searching for cheap flights from Chicago to POA.

      • Located around 27 kilometres from the centre of Chicago, ORD can be reached in about 30 minutes by car (depending on traffic). The journey by public transport takes roughly 45 minutes.

      • Catching an early flight from Chicago to Porto Alegre Salgado Filho International Airport? Avoid rushing to the terminal (and sneak in some extra snooze time) by picking one of these stays near Chicago O'Hare International Airport:

      • 70% of flights that leave from Chicago O'Hare International Airport arrive at their destination on schedule.

      • ORD's address is 10000 West O'Hare.

      Chicago Midway International Airport (MDW)

      • With public transport, you can travel from central Chicago to MDW in around 30 minutes. The terminal is roughly 16 kilometres away, and making the journey by car takes approximately 25 minutes.

      • Want to enjoy an extra night away before boarding your Chicago to POA flight? Unwind in a hotel near Chicago Midway International Airport before your adventure officially begins. Here's where you can stay:

      • 76% of flights out of Chicago Midway International Airport make it to their destination as expected.

      • MDW is located at 5700 South Cicero.

      Chicago Rockford International Airport (RFD)

      • From central Chicago, RFD is around 145 kilometres away. It takes roughly 1 hour 40 minutes to reach the airport by car and 2 hours or so on public transport.

      • Make catching an early Chicago to Porto Alegre Salgado Filho International Airport flight the easiest part of your trip. Book a room at one of these hotels near Chicago Rockford International Airport and get to your gate with time to spare:

      • Airports have an on-time performance rating that measures how often flights arrive at their destinations without delays. At RFD, that rate is 71%.

      • The street address of Chicago Rockford International Airport is 2 Airport Cir.

      About Porto Alegre Salgado Filho International Airport (POA)

      Getting from Porto Alegre Salgado Filho International Airport (POA) to central Porto Alegre

      • Central Porto Alegre is around 10 kilometres from Porto Alegre Salgado Filho International Airport and takes about 20 minutes to reach by car. Explore your options for getting into the city, whether that's with a car hire, taxi or ride-share.

      • It'll take around 35 minutes if you're travelling by public transport.

      How to find the cheapest flights from Chicago to Porto Alegre Salgado Filho International Airport (POA)

      • Currently, $681 is the best price we've found for a one-way ticket from Chicago to Porto Alegre Salgado Filho International Airport. The cheapest price for a return flight is $1,158. Keep in mind fares may change due to availability at the time of booking.

      • Booking in advance is often the key to scoring a cheap flight from Chicago to POA. Fares tend to rise as demand increases, so the closer your departure date, the more expensive your ticket may be.

      • If you can be flexible with your travel dates, use the 'Whole month' tool. It'll show you the cheapest price across each month when searching for your Chicago to Porto Alegre Salgado Filho International Airport ticket.

      • Save time searching for cheap plane tickets from Chicago to POA by creating a Price Alert. We'll send you an email or notification through the app when prices go down.

      • Uncover a great deal on a flight from Chicago to Porto Alegre Salgado Filho International Airport with the help of the filters. Pick your ideal departure and arrival times, airlines and number of stops. You can also sort your results by 'Cheapest,' 'Best' or 'Fastest.'

      The best time to fly from Chicago to Porto Alegre Salgado Filho International Airport (POA)

      • Picture the kind of break you want when picking your flight dates. December is the quietest month to visit Porto Alegre. August is when most people book flights from Chicago to Porto Alegre Salgado Filho International Airport (POA), which may be perfect if you're chasing more action.

      • Book a Chicago to POA plane ticket departing in February if you're eager to explore the city during its warmest month. You can expect temperatures in Porto Alegre to range from 19ºC to 34ºC.

      • July has temperatures of between 8ºC and 23ºC. Search for cheap tickets from Chicago to Porto Alegre Salgado Filho International Airport around that time if you like travelling in cooler conditions.

      More about Porto Alegre

      Explore more of Brazil

      • You've visited Porto Alegre, now it's time to discover more of Brazil. Travel around 225 kilometres southwest to Pelotas to check off its top attractions. From Charqueada Coqueiros to Catedral Metropolitana de Sao Francisco de Paula and Casarao 8 - Museu do Doce, there's plenty to keep you busy.

      • If you're interested in discovering another well-known destination in Brazil, consider Santa Maria, roughly 257 kilometres west of Porto Alegre. Memorial of Japanese Immigration and Culture, Santa Maria Art Museum and Catedral Metropolitana Nossa Senhora da Imaculada Conceicao are among the biggest draws.

      More travel options

      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.