HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Boston

$364+ 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 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
POA — BOS
Dec 31 — Jan 71
Wed 12/31
Wed 1/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Porto Alegre to Boston with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Porto Alegre Salgado Filho to Boston Logan Intl are usually found in June or May, booked 57 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap 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 1, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$714
(United Airlines)

One-way from

$364
(American Airlines)

Popular in

July

Cheapest in

June

Average price

$810
Provider with most accurate pricing for Porto Alegre Salgado Filho-Boston Logan Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Porto Alegre Salgado Filho-Boston Logan Intl flights.
Search Deals
From Porto Alegre Salgado Filho to Boston Logan Intl
Search Deals
One-way flight from Porto Alegre Salgado Filho to Boston Logan Intl
Search Deals
High demand for flights, 5% potential price rise
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Find 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 1, 2025.

This American Airlines deal was found by Cheapflights users on 11/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/107:30 pmPOA - BOS
2 stops20h 48mAmerican Airlines
Tue 2/243:47 pmBOS - POA
2 stops17h 13mAmerican Airlines
Deal found 11/29$655
This Copa Airlines deal was found by Cheapflights users on 11/30. 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.
Sun 11/301:35 amPOA - BOS
1 stop23h 05mCopa Airlines
Mon 12/87:34 amBOS - POA
1 stop14h 56mCopa Airlines
Deal found 11/30$790
This American Airlines deal was found by Cheapflights users on 11/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/107:30 pmPOA - BOS
2 stops22h 17mAmerican Airlines
Sun 2/223:47 pmBOS - POA
2 stops17h 13mAmerican Airlines
Deal found 11/29$879
This Kiwi.com deal was found by Cheapflights users on 11/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/176:00 pmPOA - BOS
2 stops30h 40mMultiple Airlines
Thu 1/293:07 pmBOS - POA
1 stop31h 23mMultiple Airlines
Deal found 11/30$940
This Kiwi.com deal was found by Cheapflights users on 11/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/226:00 pmPOA - BOS
2 stops42h 09mMultiple Airlines
Thu 1/293:07 pmBOS - POA
1 stop31h 23mMultiple Airlines
Deal found 11/30$947
This United Airlines deal was found by Cheapflights users on 11/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/161:55 pmPOA - BOS
2 stops30h 55mUnited Airlines
Sun 2/15:45 amBOS - POA
2 stops34h 35mUnited Airlines
Deal found 11/30$951
This Copa Airlines deal was found by Cheapflights users on 11/30. 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.
Tue 12/91:35 amPOA - BOS
1 stop13h 49mCopa Airlines
Sun 2/227:31 amBOS - POA
1 stop14h 54mCopa Airlines
Deal found 11/30$989
This United Airlines deal was found by Cheapflights users on 11/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/172:10 pmPOA - BOS
2 stops35h 44mUnited Airlines
Sun 2/15:45 amBOS - POA
2 stops34h 35mUnited Airlines
Deal found 11/30$1,030

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 1, 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

3:25 pm-11:57 pm

2 stops33h 32m

Boston Logan Intl

Sun 3/22

4:28 pm-4:20 pm

2 stops22h 52m

$714

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Wed 2/25

1:30 am-10:03 pm

1 stop22h 33m

Boston Logan Intl

Mon 3/2

3:05 pm-12:25 am

1 stop31h 20m

$752

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Tue 3/17

10:35 am-3:16 pm

2 stops29h 41m

Boston Logan Intl

Sun 3/22

3:49 pm-5:45 pm

2 stops24h 56m

$768

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Thu 2/26

6:40 am-6:35 am

1 stop25h 55m

Boston Logan Intl

Mon 3/2

8:55 am-12:40 am

1 stop13h 45m

$803

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Tue 3/17

5:55 pm-7:35 am

1 stop14h 40m

Boston Logan Intl

Sun 3/22

5:15 pm-5:05 pm

2 stops22h 50m

$808

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Thu 1/22

7:45 am-1:04 am

2 stops19h 19m

Boston Logan Intl

Mon 1/26

8:55 am-9:20 am

1 stop22h 25m

$812

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Wed 1/21

2:10 pm-12:19 pm

2 stops24h 09m

Boston Logan Intl

Sun 2/1

5:45 am-6:20 pm

2 stops34h 35m

$914

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Mon 3/16

1:30 am-2:42 pm

1 stop14h 12m

Boston Logan Intl

Sun 3/22

8:44 am-12:25 am

1 stop14h 41m

$924

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Tue 12/9

5:55 pm-3:47 pm

2 stops23h 52m

$364

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Mon 4/13

5:20 am-12:21 am

2 stops20h 01m

$381

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/29

Showing 1-10 of 16 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 November 28, 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.

What is the cheapest time of day to fly from POA to BOS?

Find hourly flight availability from Porto Alegre to Boston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 1, 2025.

It’s typically best to fly out from Porto Alegre to Boston at noon. Doing so could potentially save you 19% on the flight price compared to flying in the afternoon, which is usually more expensive.

How much does it cost to fly round-trip from Porto Alegre to Boston?

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 1, 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
1,559 reviews

Boarding

7.8

Comfort

7.4

Crew

8.1

Food

6.9

Entertainment

6.8

Overall

7.6

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
1,559 reviews
Copa Airlines
7.6
Good
1,559 reviews

Boarding

7.8

Comfort

7.4

Crew

8.1

Food

6.9

Entertainment

6.8

Overall

7.6

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 22h 33m. 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 ($560), offers the cheapest pricing from Porto Alegre to Boston. Copa Airlines is 22% 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
Cambridge
Medford
Hampton Beach
Watertown
Seabrook
Seekonk
Cranston
Lincoln
Lowell
Smithfield
Peabody
Brockton
Quincy
York Beach
Warwick
Londonderry
Swansea
Old Orchard Beach
Waltham
Chelsea

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Other flights to Boston

Explore flights to Boston departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on December 1, 2025.
Atlanta to Boston flights
Raleigh to Boston flights
Orlando to Boston flights
Presque Isle to Boston flights
Knoxville to Boston flights
Savannah to Boston flights
Boston to Cleveland flights
Boston to Syracuse flights
Boston to Des Moines flights
Boston to Raleigh flights
Boston to Cleveland flights
Boston to Grand Rapids flights
Boston to Asheville flights
Boston to Orlando Airport flights
Boston to Philadelphia flights
Boston to Knoxville flights
Boston to Raleigh flights
Boston to Jacksonville flights
Boston to Chicago Midway Airport flights
Boston to Sarasota flights
Boston to Massena flights
Boston to Newark Airport flights
Boston to Atlanta flights
Boston to Chicago O'Hare Intl Airport flights

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 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Copa AirlinesCheapest$560Average$615FlexibilityNo cancel feeOn-time70%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.