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Porto Alegre

$230+ Cheap flights from Massachusetts to Porto Alegre (POA)

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 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — POA
Mar 5 — Mar 121
Thu 3/5
Thu 3/12
1 adult, Economy
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Cheap flight deals from Massachusetts to Porto Alegre

Cheapest flights from Massachusetts to Porto Alegre
Explore the most affordable flight options available from Massachusetts to Porto Alegre. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 3, 2026.

This United Airlines deal was found by Cheapflights users on 2/2. 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 3/97:34 pm
BOS
-
POA
2 stops17h 36m
United Airlines
Wed 3/183:25 pm
POA
-
BOS
2 stops19h 31m
United Airlines
Deal found 2/2$490
This United Airlines deal was found by Cheapflights users on 2/2. 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 3/177:34 pm
BOS
-
POA
2 stops17h 51m
United Airlines
Thu 3/193:30 pm
POA
-
BOS
2 stops34h 05m
United Airlines
Deal found 2/2$497
This KAYAK deal was found by Cheapflights users on 2/1. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/98:43 am
BOS
-
POA
1 stop14h 37m
Copa Airlines
Mon 4/271:35 am
POA
-
BOS
1 stop22h 34m
Copa Airlines
Deal found 2/1$562
This United Airlines deal was found by Cheapflights users on 2/2. 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 2/910:30 am
BOS
-
POA
2 stops26h 05m
United Airlines
Wed 3/183:25 pm
POA
-
BOS
2 stops22h 24m
United Airlines
Deal found 2/2$605
This Gotogate deal was found by Cheapflights users on 2/1. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/99:55 am
BOS
-
POA
1 stop13h 45m
Multiple Airlines
Wed 3/181:40 pm
POA
-
BOS
2 stops18h 55m
Multiple Airlines
Deal found 2/1$685
This Cheapflightsfares deal was found by Cheapflights users on 2/3. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/98:45 am
BOS
-
POA
2 stops25h 10m
Avianca
Tue 4/286:05 pm
POA
-
BOS
2 stops38h 05m
Avianca
Deal found 2/3$702
This KAYAK deal was found by Cheapflights users on 2/2. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/99:55 am
BOS
-
POA
1 stop24h 40m
LATAM Airlines
Wed 3/186:00 pm
POA
-
BOS
2 stops18h 10m
LATAM Airlines
Deal found 2/2$723
This Delta deal was found by Cheapflights users on 2/3. 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 4/99:55 am
BOS
-
POA
1 stop15h 10m
Delta
Tue 4/285:50 pm
POA
-
BOS
2 stops20h 55m
Delta
Deal found 2/3$726
This American Airlines deal was found by Cheapflights users on 2/1. 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.
Mon 2/212:16 pm
BOS
-
POA
2 stops20h 39m
American Airlines
Tue 3/311:20 pm
POA
-
BOS
2 stops23h 24m
American Airlines
Deal found 2/1$730

Find flight deals from Massachusetts to Porto Alegre

Keep the following information in mind while searching for Massachusetts to Porto Alegre flight deals. Data was last updated February 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$490
(United Airlines)

One-way from

$230
(Trip.com)

Popular in

December

Cheapest in

June

Average price

$688
Provider with most accurate pricing for Boston Logan Intl-Porto Alegre Salgado Filho flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Porto Alegre Salgado Filho flights.
Search Deals
From Massachusetts to Porto Alegre Salgado Filho
Search Deals
One-way flight from Massachusetts to Porto Alegre Salgado Filho
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($204 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($71 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 Massachusetts to Porto Alegre 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 3, 2026.
Use the filters below to find and compare flights from Massachusetts to Porto Alegre that are best for you.

Fly from

Massachusetts

Fly to

Porto Alegre

Route

Depart

Return

Price

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Mon 3/9

7:34 pm-4:25 pm

2 stops19h 51m

Porto Alegre Salgado Filho

Wed 3/18

3:25 pm-9:56 am

2 stops19h 31m

$490

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Wed 3/11

9:32 am-6:30 pm

2 stops31h 58m

Porto Alegre Salgado Filho

Wed 3/18

5:10 pm-2:29 pm

2 stops22h 19m

$490

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Tue 3/17

7:34 pm-2:25 pm

2 stops17h 51m

Porto Alegre Salgado Filho

Thu 3/19

3:30 pm-12:35 am

2 stops34h 05m

$497

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Thu 4/9

8:43 am-12:20 am

1 stop14h 37m

Porto Alegre Salgado Filho

Mon 4/27

1:35 am-11:09 pm

1 stop22h 34m

$562

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Mon 3/9

9:55 am-12:40 am

1 stop13h 45m

Porto Alegre Salgado Filho

Wed 3/18

1:40 pm-7:35 am

2 stops18h 55m

$685

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Wed 3/11

9:55 am-11:35 am

1 stop24h 40m

Porto Alegre Salgado Filho

Wed 3/18

1:40 pm-7:35 am

2 stops18h 55m

$685

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Thu 4/9

8:45 am-10:55 am

2 stops25h 10m

Porto Alegre Salgado Filho

Tue 4/28

6:05 pm-7:10 am

2 stops38h 05m

$702

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Mon 3/9

9:55 am-11:35 am

1 stop24h 40m

Porto Alegre Salgado Filho

Wed 3/18

6:00 pm-11:10 am

2 stops18h 10m

$723

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Thu 3/5

7:55 am-12:45 am

2 stops38h 50m

$230

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Sat 3/21

6:00 am-3:25 pm

2 stops32h 25m

$345

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/2

Showing 1-10 of 13 results
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Best time to book a flight from Massachusetts to Porto Alegre

Have a flexible travel schedule? Discover the best time to fly to Porto Alegre from Massachusetts 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 Massachusetts to Porto Alegre

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

Currently, June is the cheapest month in which you can book a flight from Massachusetts to Porto Alegre (average of $202). Flying from Massachusetts to Porto Alegre in December is currently the most expensive (average of $684). 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.

Related info for your journey

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

  • What airport do you fly into for flights to Porto Alegre from Massachusetts?

    Located just 4.0 mi from the city center, Porto Alegre Salgado Filho (POA) is the airport most travelers will use when flying to Porto Alegre from Massachusetts.

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

    For as low as $562, United Airlines can have you in Porto Alegre from Massachusetts in 14h 37m. The distance from Massachusetts to Porto Alegre is about 5153 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at $291. United Airlines flights start at $292 while deals on LATAM Airlines start at $308 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Massachusetts to Porto Alegre 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 Massachusetts to Porto Alegre?

    Currently, June is the cheapest month in which you can book a flight from Massachusetts to Porto Alegre (average of $202). Flying from Massachusetts to Porto Alegre in December is currently the most expensive (average of $684). 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

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Alternative routes for Massachusetts to Porto Alegre

See prices for flight routes from nearby airports that may be better suited for you.
Miami to Porto Alegre flights
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Top 6 airlines flying from Massachusetts to Porto Alegre

Discover the top 6 airlines that operate flights from Massachusetts to Porto Alegre. 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 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
Copa AirlinesCheapest$279Average$679FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$334Average$547FlexibilityNo cancel feeOn-time69%
DeltaCheapest$498Average$758FlexibilityNo cancel feeOn-timeN/A
LATAM AirlinesCheapest$515Average$761FlexibilityNo cancel feeOn-time81%
American AirlinesCheapest$551Average$688FlexibilityNo cancel feeOn-time71%
GOLCheapest$712Average$853FlexibilityNo cancel feeOn-time74%

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