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$343+ 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 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
POA — BOS
Mar 15 — Mar 221
Sun 3/15
Sun 3/22
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 February 13, 2026.

This Delta deal was found by Cheapflights users on 2/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/265:55 pm
POA
-
BOS
1 stop14h 40m
Delta
Wed 3/49:05 am
BOS
-
POA
2 stops19h 25m
Delta
Deal found 2/12$578
This LATAM Airlines deal was found by Cheapflights users on 2/12. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/269:45 am
POA
-
BOS
2 stops22h 50m
LATAM Airlines
Wed 3/45:35 am
BOS
-
POA
2 stops22h 55m
LATAM Airlines
Deal found 2/12$583
This LATAM Airlines deal was found by Cheapflights users on 2/11. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/259:40 pm
POA
-
BOS
2 stops34h 55m
LATAM Airlines
Wed 3/45:35 am
BOS
-
POA
2 stops22h 55m
LATAM Airlines
Deal found 2/11$585
This LATAM Airlines deal was found by Cheapflights users on 2/11. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/99:40 pm
POA
-
BOS
2 stops34h 55m
LATAM Airlines
Mon 3/169:55 am
BOS
-
POA
2 stops25h 20m
LATAM Airlines
Deal found 2/11$586
This United Airlines deal was found by Cheapflights users on 2/11. 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.
Mon 3/95:10 pm
POA
-
BOS
2 stops20h 39m
United Airlines
Sun 3/155:45 am
BOS
-
POA
2 stops33h 40m
United Airlines
Deal found 2/11$592
This United Airlines deal was found by Cheapflights users on 2/11. 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.
Fri 2/275:10 pm
POA
-
BOS
2 stops27h 58m
United Airlines
Mon 3/97:34 pm
BOS
-
POA
2 stops17h 36m
United Airlines
Deal found 2/11$593
This LATAM Airlines deal was found by Cheapflights users on 2/11. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/36:40 am
POA
-
BOS
2 stops19h 19m
LATAM Airlines
Wed 3/115:35 am
BOS
-
POA
2 stops23h 55m
LATAM Airlines
Deal found 2/11$595
This American Airlines deal was found by Cheapflights users on 2/12. 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.
Tue 3/176:25 pm
POA
-
BOS
2 stops18h 00m
American Airlines
Sun 3/229:33 pm
BOS
-
POA
2 stops19h 12m
American Airlines
Deal found 2/12$597
This American Airlines deal was found by Cheapflights users on 2/10. 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.
Tue 2/247:20 pm
POA
-
BOS
2 stops18h 22m
American Airlines
Wed 3/43:49 pm
BOS
-
POA
2 stops23h 56m
American Airlines
Deal found 2/10$598
This LATAM Airlines deal was found by Cheapflights users on 2/11. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/97:45 am
POA
-
BOS
2 stops18h 28m
LATAM Airlines
Tue 3/175:15 pm
BOS
-
POA
2 stops22h 50m
LATAM Airlines
Deal found 2/11$599
This American Airlines deal was found by Cheapflights users on 2/11. 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 2/257:20 pm
POA
-
BOS
2 stops18h 22m
American Airlines
Thu 3/511:55 am
BOS
-
POA
2 stops21h 00m
American Airlines
Deal found 2/11$600

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 February 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$578
(Delta)

One-way from

$343
(Copa Airlines)

Popular in

January

Cheapest in

June

Average price

$640
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
Highest demand for flights based on searches. 7% potential increase in price ($57 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 February 13, 2026.
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

Thu 2/26

5:55 pm-6:35 am

1 stop14h 40m

Boston Logan Intl

Wed 3/4

9:05 am-6:30 am

2 stops19h 25m

$583

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Mon 3/9

6:40 am-11:33 pm

2 stops17h 53m

Boston Logan Intl

Mon 3/16

9:55 am-12:40 am

1 stop13h 45m

$583

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Mon 3/9

5:10 pm-12:49 pm

2 stops20h 39m

Boston Logan Intl

Sun 3/15

5:45 am-4:25 pm

2 stops33h 40m

$592

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Fri 2/27

5:10 pm-7:08 pm

2 stops27h 58m

Boston Logan Intl

Mon 3/9

7:34 pm-2:10 pm

2 stops17h 36m

$593

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Wed 2/25

2:05 pm-10:02 am

2 stops21h 57m

Boston Logan Intl

Wed 3/4

9:05 am-6:30 am

2 stops19h 25m

$594

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Tue 3/17

6:25 pm-11:25 am

2 stops18h 00m

Boston Logan Intl

Sun 3/22

9:33 pm-5:45 pm

2 stops19h 12m

$597

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Mon 3/9

7:20 pm-5:29 pm

2 stops23h 09m

Boston Logan Intl

Mon 3/16

7:06 pm-5:45 pm

2 stops21h 39m

$599

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Mon 3/9

7:45 am-1:13 am

2 stops18h 28m

Boston Logan Intl

Tue 3/17

5:15 pm-5:05 pm

2 stops22h 50m

$599

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Wed 2/25

7:20 pm-11:42 am

2 stops18h 22m

Boston Logan Intl

Thu 3/5

11:55 am-10:55 am

2 stops21h 00m

$600

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Thu 2/26

7:20 pm-11:42 am

2 stops18h 22m

Boston Logan Intl

Thu 3/5

7:00 am-10:55 am

2 stops25h 55m

$601

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/11

Showing 1-10 of 21 results
1
2
3
  • Most accurate provider: When it comes to deals on Porto Alegre-Boston flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Porto Alegre-Boston flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 February 6, 2026.

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, November is the cheapest month in which you can book a flight from Porto Alegre to Boston (average of $289). Flying from Porto Alegre to Boston in January is currently the most expensive (average of $714). 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 February 13, 2026.
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
7.5
Good
1,559 reviews

Entertainment

6.8

Boarding

7.8

Food

6.8

Overall

7.5

Crew

8.1

Comfort

7.4

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
7.5
Good
1,559 reviews
Copa Airlines
7.5
Good
1,559 reviews

Entertainment

6.8

Boarding

7.8

Food

6.8

Overall

7.5

Crew

8.1

Comfort

7.4

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 14h 40m. 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, November is the cheapest month in which you can book a flight from Porto Alegre to Boston (average of $289). Flying from Porto Alegre to Boston in January is currently the most expensive (average of $714). 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
Medford
Cambridge
Hampton Beach
Watertown
Seekonk
Brockton
Concord
Seabrook
Cranston
Lincoln
Warwick
Smithfield
Peabody
Quincy
York Beach
Londonderry
Swansea
Old Orchard Beach
Waltham
Lowell

Browse thousands of different options on Cheapflights for your next trip

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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 February 13, 2026.
AirlineCheapestAverageFlexibilityOn-time
Copa AirlinesCheapest$431Average$615FlexibilityNo cancel feeOn-time70%

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