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$335+ 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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
POA — BOS
Jun 29 — Jul 61
Mon 6/29
Mon 7/6
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 May 30, 2026.

This 123 Milhas deal was found by Cheapflights users on 5/29. 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 123 Milhas is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/102:05 pm
POA
-
BOS
2 stops18h 05m
Multiple Airlines
Thu 8/278:45 am
BOS
-
POA
2 stops23h 45m
Multiple Airlines
Deal found 5/29$740
This Expedia deal was found by Cheapflights users on 5/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2911:20 am
POA
-
BOS
2 stops45h 15m
Multiple Airlines
Sun 11/18:55 am
BOS
-
POA
1 stop22h 20m
Multiple Airlines
Deal found 5/26$805
This 123 Milhas deal was found by Cheapflights users on 5/27. 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 123 Milhas is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2310:10 am
POA
-
BOS
2 stops21h 40m
Multiple Airlines
Fri 11/612:25 pm
BOS
-
POA
2 stops33h 10m
Multiple Airlines
Deal found 5/27$809
This oojo deal was found by Cheapflights users on 5/27. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/214:40 am
POA
-
BOS
2 stops21h 19m
GOL
Mon 10/511:07 am
BOS
-
POA
2 stops23h 38m
GOL
Deal found 5/27$862
This Rumbo deal was found by Cheapflights users on 5/27. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/211:20 am
POA
-
BOS
1 stop22h 48m
Multiple Airlines
Tue 7/73:15 pm
BOS
-
POA
2 stops24h 45m
Multiple Airlines
Deal found 5/27$875
This GOL deal was found by Cheapflights users on 5/26. 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 GOL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/67:40 pm
POA
-
BOS
2 stops36h 30m
GOL
Sun 9/135:22 pm
BOS
-
POA
2 stops17h 23m
GOL
Deal found 5/26$883
This Expedia deal was found by Cheapflights users on 5/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/102:00 pm
POA
-
BOS
2 stops18h 10m
Multiple Airlines
Wed 8/269:55 am
BOS
-
POA
1 stop13h 45m
Multiple Airlines
Deal found 5/26$907

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 May 30, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$740
(123 Milhas)

One-way from

$335
(123 Milhas)

Popular in

July

Cheapest in

June

Average price

$924
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 ($62 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($28 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 May 30, 2026.
Use the filters below to find and compare flights from Porto Alegre to Boston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Sun 9/6

7:40 pm-7:10 am

2 stops36h 30m

Boston Logan Intl

Sun 9/13

5:22 pm-11:45 am

2 stops17h 23m

$883
Quickest round-trip

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Sun 9/20

1:20 am-11:02 pm

1 stop22h 42m

Boston Logan Intl

Mon 10/5

8:47 am-12:20 am

1 stop14h 33m

$920

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Thu 7/30

11:35 am-10:59 pm

2 stops36h 24m

Boston Logan Intl

Sun 8/23

6:00 pm-5:45 pm

2 stops22h 45m

$950

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Tue 7/7

5:10 pm-11:21 pm

2 stops31h 11m

Boston Logan Intl

Tue 8/11

8:31 pm-2:35 pm

2 stops41h 04m

$992

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Wed 7/8

1:15 am-2:34 pm

1 stop14h 19m

Boston Logan Intl

Sun 7/19

3:57 pm-12:15 am

1 stop31h 18m

$1,009

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Tue 6/16

1:20 am-11:08 pm

1 stop22h 48m

Boston Logan Intl

Wed 8/12

3:57 pm-12:15 am

1 stop31h 18m

$1,054
Cheapest one-way

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Thu 10/1

1:20 am-11:02 pm

1 stop22h 42m

$465

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Wed 6/17

1:20 am-11:08 pm

1 stop22h 48m

$465

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Wed 6/17

1:40 pm-12:45 pm

2 stops24h 05m

$477

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Wed 6/17

1:40 pm-12:45 pm

2 stops24h 05m

$490

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/29

Showing 1-10 of 14 resultsSorted by cheapest first
1
2
  • 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?

To ensure you get the cheapest price possible for a flight from Porto Alegre to Boston, you should look to book at least 8 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 $539). Flying from Porto Alegre to Boston in April is currently the most expensive (average of $968). 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.

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 May 30, 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
1,574 reviews

Entertainment

6.8

Comfort

7.4

Food

6.9

Overall

7.5

Crew

8.1

Boarding

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Apr 2026

LIM - PTY

Fast boarding, polite and helpful staff. Lowest cost across all airlines
Copa Airlines
7.5
Good
1,574 reviews
Copa Airlines
7.5
Good
1,574 reviews

Entertainment

6.8

Comfort

7.4

Food

6.9

Overall

7.5

Crew

8.1

Boarding

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Apr 2026

LIM - PTY

Fast boarding, polite and helpful staff. Lowest cost across all airlines

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 42m. 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 45% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Porto Alegre to Boston one-way?

    $333 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on GOL and Copa Airlines, with prices starting from $344 and $439, respectively.

  • 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 $539). Flying from Porto Alegre to Boston in April is currently the most expensive (average of $968). 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
Waltham
Cambridge
Concord
Hampton Beach
Brockton
Watertown
Seekonk
Cranston
Chelsea
Warwick
Peabody
York Beach
Londonderry
Swansea
Old Orchard Beach
Auburn
Lowell
Smithfield
Braintree
Sandwich

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 May 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
Copa AirlinesCheapest$431Average$751FlexibilityNo cancel feeOn-time70%

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