Cheap Flights from Boston Logan International to Porto Alegre

Compare Boston Logan International to Porto Alegre flight deals

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

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Flight deals from Boston Logan International to Porto Alegre

Looking for a cheap last-minute deal or the best return flight from Boston Logan International to Porto Alegre? Find the lowest prices on one-way and return tickets right here.
Map with a flight path from Boston Logan International to Porto Alegre. A plane icon is halfway along the route with a label that says "1+ stops".
1+ stops

Your route at a glance

Cheapest dealر.ق.‏ 2,403
Cheapest monthJanuary
Most popular airlineLATAM Airlines

Find the cheapest month to fly from Boston Logan International to Porto Alegre

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Boston Logan International to Porto Alegre flights are currently cheapest in March.

Boston Logan International to Porto Alegre: Alternative routes

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

Finding cheap flights from Boston Logan International to Porto Alegre: Frequently asked questions

The best price we found for a return flight from Boston Logan International to Porto Alegre is ر.ق.‏ 2,403. 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 Boston Logan International to Porto Alegre. But we found flights with one or more stops from ر.ق.‏ 2,403.
As of December 2025, there are no flights flying from Boston Logan International to Porto Alegre.
The cheapest month to fly from Boston Logan International to Porto Alegre is usually January.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Boston Logan International Airport to Porto Alegre Airport on Sunday, 25 January 2026.
No airlines currently offer direct flights between Boston Logan 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, Spirit Airlines offers the cheapest flight tickets to Porto Alegre.

Travelling from Logan International Airport (BOS) to Salgado Filho International Airport (POA): what you need to know

  • The timezone in Porto Alegre is UTC-3, which is one hour ahead of Boston.

  • Your BOS to POA flight won't wait if you're late, so be at the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead when you're flying internationally.

  • Be prepared for longer lines during popular months like August. Arriving up to four hours in advance for international flights and two hours for domestic departures will give you ample time for security and boarding.

  • Opt for a stopover if you want to break up your flight. Just deselect 'Direct flights only' to see the options for tickets from Logan International Airport to Salgado Filho International Airport. Tocumen International Airport is a top stopover on the BOS to POA route.

How to find the cheapest flights from Logan International Airport (BOS) to Salgado Filho International Airport (POA)

  • Currently, ر.ق.‏ 1,053 is the cheapest price we've found for a one-way Logan International Airport to Salgado Filho International Airport flight. The best price for a return plane ticket is ر.ق.‏ 2,403. Bear in mind that fares can change due to demand when booking.

  • To find cheap tickets from BOS to POA, book as early as you can. Airlines usually offer their most competitively priced fares when flights are first made available.

  • Getting cheap flights from Logan International Airport to Salgado Filho International Airport is easier if you're flexible with your dates. Use the 'Whole month' search function to see the lowest fares across every month and score a great deal.

  • Stay on top of deals for cheap flights from BOS to POA by creating a Price Alert. You'll receive an email or notification on the app when fares go down.

  • Choose your preferred arrival and departure times, number of stops and airlines with the filters. Alternatively, sort your results by 'Cheapest' to see the best deals on flights from Logan International Airport to Salgado Filho International Airport.

Handy information about Logan International Airport (BOS)

  • BOS is located at One Harborside Drive.

  • Of all flights leaving Logan International Airport, 73.94% land on time at their destination.

  • Logan International Airport is about 5 kilometres from central Boston. If you're driving, ride-sharing or catching a cab from the centre, it'll take 10 minutes or so to get there, depending on the traffic.

  • The journey when using public transport takes about 25 minutes.

  • Get your trip off to a leisurely start by staying near BOS. Whether you're catching an early flight from Logan International Airport to Salgado Filho International Airport or want to avoid feeling rushed, these hotels are ideal:

Arriving at Salgado Filho International Airport (POA)

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

  • Salgado Filho International Airport is roughly 11 kilometres from the centre of Porto Alegre. The drive time takes about 20 minutes.

  • If you're travelling by public transport, expect a journey time of around 50 minutes.

When to fly to Salgado Filho International Airport (POA)

  • June is the most popular month for flights from Logan International Airport to Salgado Filho International Airport. To steer clear of the crowds, go to Porto Alegre in May.

  • Before locking in your flight from Logan International Airport to Salgado Filho International Airport, think about the kind of weather you enjoy. January is the warmest month in Porto Alegre, with temperatures ranging from 17ºC to 34ºC.

  • If you want to travel in cooler conditions, search for a cheap ticket from BOS to POA in July. Average temperatures are between 8ºC and 23ºC then.

Explore more of Brazil

  • Porto Alegre has loads to offer, but there are so many other corners of Brazil waiting to be discovered. About 483 kilometres north-east of Porto Alegre, a visit to Joinville will fill your itinerary to the brim. Check out popular attractions like Rua das Palmeiras, Parque Zoobotanico and Expoville Park.

  • If you're eager to discover another great destination in Brazil, consider Florianopolis, about 370 kilometres north-east of Porto Alegre. Joaquina beach, Farol da Barra da Lagoa and Hercilio Luz Bridge are key highlights.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.