Find cheap airlines flights from Atlanta to Porto Alegre

Choose from 1 carriers that fly from Atlanta to Porto Alegre, including Copa Airlines, Enjoy the cheapest tickets on this route with Copa Airlines.

Find flight deals from Atlanta to Porto Alegre for the next 3 months. Book one way flights from $361 or round trip flights from $1,426.

Displayed flight fares from Atlanta to Porto Alegre are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Flight Info | Atlanta to Porto Alegre

The distance between Atlanta and Porto Alegre is approximately 7,893.09 km. Based on Trip.com's data travel demand peaks in August. The off-season for travel is December.

Cheapest one-way flight price$361
Cheapest round-trip ticket price$1,426
Off-season for travelDecember
Peak season for travelAugust
Flight distance7,893.09 km
Popular airlineCopa Airlines

When is the cheapest time to fly from Atlanta to Porto Alegre?

The cheapest time for Atlanta to Porto Alegre flights: Feb 22 to Mar 1 — one way flight prices from $267.

Cheapest flights
From price
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  • 714
  • 1421
  • 2128
  • Jan

    284
  • 411
  • 1118
  • 1825
  • Feb

    251
  • 18
  • 815
  • 1522
  • Mar

    221
Displayed fare trends are based on Trip.com's aggregated average of the lowest flight prices from Atlanta to Porto Alegre, calculated over the upcoming 10 weeks.

Frequently Asked Questions

  • What are the cheapest flights from Atlanta to Porto Alegre (ATL-POA)?

    Based on Trip.com data, Copa Airlines offers one-way fares as low as $361 on Cheapest nonstop routes (e.g. ATL to POA on Mon, Dec 29), while LATAM Airlines offers Cheapest nonstop round-trips from $1,426 departing on Fri, Jan 30 and returning on Fri, Feb 6.
  • At the moment, you can catch a nonstop flight from Atlanta to Porto Alegre with the following airlines, including: Gol Linhas Aereas Inteligentes Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Atlanta 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.
  • To find best deals on flights from Atlanta 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 Mon, Dec 29, with one-way flights priced at just $361.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Copa 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.
  • The cheapest months to fly from Atlanta to Porto Alegre is December, when demand for travel is lower.
  • After crunching the numbers on our December flight calendar, it's currently cheapest to fly from Atlanta to Porto Alegre on December 24, 2025 with LATAM Airlines, with prices starting at $1,449.
  • You can land at any one of the following hubs in Porto Alegre, with Hartsfield-Jackson Atlanta International Airport to Salgado Filho Porto Alegre International Airport (ATL-POA) is by far the most common option on this route: Salgado Filho Porto Alegre International Airport (POA).
  • The time difference between Porto Alegre and Atlanta is 2h.
  • 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.