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$311+ Cheap flights from Porto Alegre (POA) to Boston (BOS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/8. Fares are subject to change and may not be available on all flights or dates of travel.
POA — BOS
Jan 30 — Feb 61
Fri 1/30
Fri 2/6
1 adult, Economy
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Cheap flight deals from Porto Alegre to Boston

Cheapest flights from Porto Alegre to Boston
Explore the most affordable flight options available from Porto Alegre to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 31, 2025.

This Air Canada deal was found by Cheapflights users on 12/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/295:55 pmPOA - BOS
2 stops22h 57mMultiple Airlines
Sat 1/104:35 pmBOS - POA
2 stops20h 15mMultiple Airlines
Deal found 12/29$1,802
This Copa Airlines deal was found by Cheapflights users on 12/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/299:20 pmPOA - BOS
2 stops27h 20mCopa Airlines
Sat 1/107:31 amBOS - POA
1 stop14h 59mCopa Airlines
Deal found 12/29$6,839

Find flight deals from Porto Alegre to Boston

Discover tips and strategies to find the most affordable flight options for your journey from Porto Alegre (POA) to Boston (BOS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 31, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$617
(American Airlines)

One-way from

$311
(Kiwi.com)

Popular in

March

Cheapest in

June

Average price

$733
Provider with most accurate pricing for Porto Alegre Salgado Filho-Boston Logan Intl flight deals.
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Provider most trusted by Cheapflights users for Porto Alegre Salgado Filho-Boston Logan Intl flights.
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From Porto Alegre Salgado Filho to Boston Logan Intl
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One-way flight from Porto Alegre Salgado Filho to Boston Logan Intl
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Highest demand for flights based on searches. 11% potential increase in price ($90 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Porto Alegre to Boston that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 31, 2025.
Use the filters below to find and compare flights from Porto Alegre to Boston that are best for you.

Fly from

Porto Alegre

Fly to

Boston

Route

Depart

Return

Price

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Tue 3/17

5:55 pm-5:29 pm

2 stops24h 34m

Boston Logan Intl

Sun 3/22

3:49 pm-11:00 am

2 stops18h 11m

$615

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Wed 2/18

3:25 pm-9:32 am

2 stops20h 07m

Boston Logan Intl

Tue 3/3

3:35 pm-4:25 pm

2 stops22h 50m

$736

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Mon 6/1

4:45 am-11:25 pm

2 stops19h 40m

Boston Logan Intl

Mon 6/8

9:55 am-9:15 am

1 stop22h 20m

$774

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Tue 2/3

9:05 pm-6:35 am

2 stops35h 30m

Boston Logan Intl

Tue 2/17

7:31 am-12:25 am

1 stop14h 54m

$791

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Fri 3/20

5:10 pm-11:11 am

2 stops19h 01m

Boston Logan Intl

Tue 3/24

1:20 pm-2:25 pm

2 stops24h 05m

$798

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Wed 2/18

5:55 pm-6:35 am

1 stop14h 40m

Boston Logan Intl

Tue 3/3

1:04 pm-5:00 pm

2 stops25h 56m

$798

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Tue 3/17

1:00 pm-7:35 am

1 stop19h 35m

Boston Logan Intl

Sun 3/22

11:25 am-5:05 pm

2 stops28h 40m

$800

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Sun 3/8

11:15 am-4:45 pm

3 stops54h 30m

$311

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Sun 3/15

5:30 am-1:55 pm

3 stops57h 25m

$322

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Thu 3/12

1:40 pm-7:35 am

2 stops42h 55m

$328

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/29

Showing 1-10 of 19 results
1
2

Compare providers for flights from Porto Alegre to Boston

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Porto Alegre to Boston in December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Porto Alegre-Boston flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Porto Alegre-Boston flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Porto Alegre-Boston flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Porto Alegre-Boston flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Porto Alegre-Boston flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Porto Alegre to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from Porto Alegre with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Porto Alegre to Boston

How far ahead should I book a flight from Porto Alegre to Boston?

Use this chart to determine the optimal time to book a round-trip flight from Porto Alegre to Boston. Price data was last updated on December 26, 2025.

To ensure you get the cheapest price possible for a flight from Porto Alegre to Boston, you should look to book at least 57 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Porto Alegre to Boston?

Currently, June is the cheapest month in which you can book a flight from Porto Alegre to Boston (average of $279). Flying from Porto Alegre to Boston in February is currently the most expensive (average of $613). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Boston

Get insights into the airlines that provide service to Boston. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Boston. Reviews last updated December 31, 2025.
Get a feel of what it's like to fly with Copa Airlines from Porto Alegre to Boston by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Copa Airlines
7.6
Good
1,564 reviews

Entertainment

6.8

Overall

7.6

Boarding

7.8

Crew

8.1

Comfort

7.4

Food

6.8

Reviews

1 / 20
4.0
Okay

Juan Pablo,Sep 2025

PTY - VVI

not a good expirience, the plane was packed, the seats wear very unconftrable, coudent conect with the entratainmente service on the plane, the onboarding was in charge of a very angry lady i really had a unplesent trip
Copa Airlines
7.6
Good
1,564 reviews
Copa Airlines
7.6
Good
1,564 reviews

Entertainment

6.8

Overall

7.6

Boarding

7.8

Crew

8.1

Comfort

7.4

Food

6.8

Reviews

1 / 20
4.0
Okay

Juan Pablo,Sep 2025

PTY - VVI

not a good expirience, the plane was packed, the seats wear very unconftrable, coudent conect with the entratainmente service on the plane, the onboarding was in charge of a very angry lady i really had a unplesent trip

Related info for your journey

Find useful and relevant information for your journey from Porto Alegre to Boston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Porto Alegre to Boston?

    Departing from Porto Alegre to Boston will take you 18h 47m. Porto Alegre and Boston are separated by a distance of 5153 mi. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Porto Alegre to Boston round-trip?

    According to our current data, Copa Airlines ($431), offers the cheapest pricing from Porto Alegre to Boston. Copa Airlines is 39% cheaper than the average price of flights available within the next 90 days to this destination.

  • Can I find deals for flights from Porto Alegre to Boston that include hotel bookings?

    Yes. In addition to deals on Porto Alegre to Boston flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Porto Alegre to Boston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Porto Alegre to Boston.

  • Can I find deals for business class flights from Porto Alegre to Boston?

    Yes. Cheapflights offers flight deals from Porto Alegre to Boston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Porto Alegre to Boston?

    Currently, June is the cheapest month in which you can book a flight from Porto Alegre to Boston (average of $279). Flying from Porto Alegre to Boston in February is currently the most expensive (average of $613). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
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Top airline flying from Porto Alegre to Boston

Discover the top airline that operate flights from Porto Alegre to Boston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Copa AirlinesCheapest$560Average$599FlexibilityNo cancel feeOn-time70%

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