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Cheap flights from Massachusetts to Porto Alegre from $230

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Massachusetts to Porto Alegre departing on 3/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Massachusetts to Porto Alegre

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
7:34 pm - 2:10 pm
BOS
-
POA
17h 36m
2 stops
United Airlines Logo
3:25 pm - 9:56 am
POA
-
BOS
19h 31m
2 stops
$490United Airlines
Mon, Mar 9 - Wed, Mar 18
United Airlines Logo
7:34 pm - 2:25 pm
BOS
-
POA
17h 51m
2 stops
United Airlines Logo
3:30 pm - 12:35 am
POA
-
BOS
34h 05m
2 stops
$497United Airlines
Tue, Mar 17 - Thu, Mar 19
United Airlines Logo
7:34 pm - 2:25 pm
BOS
-
POA
17h 51m
2 stops
United Airlines Logo
3:30 pm - 7:42 pm
POA
-
BOS
29h 12m
2 stops
$590United Airlines
Tue, Mar 17 - Thu, Mar 19
United Airlines Logo
7:34 pm - 2:25 pm
BOS
-
POA
17h 51m
2 stops
United Airlines Logo
3:30 pm - 12:35 am
POA
-
BOS
34h 05m
2 stops
$597United Airlines
Tue, Mar 17 - Thu, Mar 19
Copa Airlines Logo
8:43 am - 12:20 am
BOS
-
POA
14h 37m
1 stop
Copa Airlines Logo
1:35 am - 2:34 pm
POA
-
BOS
13h 59m
1 stop
$669Copa Airlines
Thu, Apr 9 - Mon, Apr 27
Avianca Logo
8:45 am - 10:55 am
BOS
-
POA
25h 10m
2 stops
Avianca Logo
6:05 pm - 7:10 am
POA
-
BOS
38h 05m
2 stops
$702Avianca
Thu, Apr 9 - Tue, Apr 28
LATAM Airlines Logo
9:55 am - 2:10 pm
BOS
-
POA
27h 15m
2 stops
LATAM Airlines Logo
6:00 pm - 11:10 am
POA
-
BOS
18h 10m
2 stops
$723LATAM Airlines
Mon, Mar 9 - Wed, Mar 18
Delta Logo
9:55 am - 2:05 am
BOS
-
POA
15h 10m
1 stop
Delta Logo
5:50 pm - 1:45 pm
POA
-
BOS
20h 55m
2 stops
$726Delta
Thu, Apr 9 - Tue, Apr 28
United Airlines Logo
12:07 pm - 2:25 pm
BOS
-
POA
25h 18m
3 stops
United Airlines Logo
3:30 pm - 5:17 pm
POA
-
BOS
26h 47m
2 stops
$737United Airlines
Tue, Mar 17 - Thu, Mar 19
Copa Airlines Logo
8:44 am - 12:25 am
BOS
-
POA
14h 41m
1 stop
Copa Airlines Logo
1:30 am - 11:10 pm
POA
-
BOS
22h 40m
1 stop
$759Copa Airlines
Mon, Mar 9 - Tue, Mar 17

United Airlines flights from Massachusetts to Porto Alegre

Our best United Airlines deals on Massachusetts to Porto Alegre flight tickets
United Airlines
Mar 9
BOS7:34 pmBoston Logan Intl
17h 36m
2 stops
POA2:10 pmPorto Alegre Salgado Filho
Mar 18
POA3:25 pmPorto Alegre Salgado Filho
19h 31m
2 stops
BOS9:56 amBoston Logan Intl
$490
United Airlines
Mar 17
BOS7:34 pmBoston Logan Intl
17h 51m
2 stops
POA2:25 pmPorto Alegre Salgado Filho
Mar 19
POA3:30 pmPorto Alegre Salgado Filho
34h 05m
2 stops
BOS12:35 amBoston Logan Intl
$497
United Airlines
Mar 17
BOS7:34 pmBoston Logan Intl
17h 51m
2 stops
POA2:25 pmPorto Alegre Salgado Filho
Mar 19
POA3:30 pmPorto Alegre Salgado Filho
29h 12m
2 stops
BOS7:42 pmBoston Logan Intl
$590

LATAM Airlines flights from Massachusetts to Porto Alegre

Our best LATAM Airlines deals on Massachusetts to Porto Alegre flight tickets
LATAM Airlines
Mar 9
BOS9:55 amBoston Logan Intl
24h 40m
1 stop
POA11:35 amPorto Alegre Salgado Filho
Mar 18
POA6:00 pmPorto Alegre Salgado Filho
18h 10m
2 stops
BOS11:10 amBoston Logan Intl
$723
LATAM Airlines
Feb 9
BOS5:25 pmBoston Logan Intl
21h 40m
2 stops
POA5:05 pmPorto Alegre Salgado Filho
Mar 18
POA5:55 pmPorto Alegre Salgado Filho
18h 15m
2 stops
BOS11:10 amBoston Logan Intl
$991

momondo 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, momondo users made 832,500 searches. Data last updated February 4, 2026.
Use the filters below to find and compare flights from Massachusetts to Porto Alegre that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Mon 3/9

7:34 pm-2:10 pm

2 stops17h 36m

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

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

Tue 3/17

7:34 pm-2:25 pm

2 stops17h 51m

Porto Alegre Salgado Filho

Thu 3/19

3:30 pm-7:42 pm

2 stops29h 12m

$590

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

$597

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-2:34 pm

1 stop13h 59m

$669

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-2:10 pm

2 stops27h 15m

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 4/9

9:55 am-2:05 am

1 stop15h 10m

Porto Alegre Salgado Filho

Tue 4/28

5:50 pm-1:45 pm

2 stops20h 55m

$726

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Tue 3/17

12:07 pm-2:25 pm

3 stops25h 18m

Porto Alegre Salgado Filho

Thu 3/19

3:30 pm-5:17 pm

2 stops26h 47m

$737

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Mon 3/9

8:44 am-12:25 am

1 stop14h 41m

Porto Alegre Salgado Filho

Tue 3/17

1:30 am-11:10 pm

1 stop22h 40m

$759

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Massachusetts to Porto Alegre

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Porto Alegre?

The cheapest month to fly to Porto Alegre from Massachusetts is in June. Flight prices, which tend to average around $486, are often lower during this time because this is during the off-season. If you’re not able to fly to Porto Alegre in June, then May is your next best option. Flight prices from Massachusetts to Porto Alegre during May average around $574.

Can stopping save me money on Massachusetts to Porto Alegre flights?

You could potentially save up to 6% on your flight if you consider stops on a Massachusetts to Porto Alegre flight.

Cheap Massachusetts to Porto Alegre flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Massachusetts to Porto Alegre

Fastest flight time

15h 10m

Direct flights

None
The fastest flight from Massachusetts to Porto Alegre takes 15h 10m
There are no direct flights from Massachusetts to Porto Alegre. There are no popular flight routes from Massachusetts to Porto Alegre.
Search flight deals

  • When did momondo last update prices for flights from Massachusetts to Porto Alegre Salgado Filho Airport?

    Prices for flights from Massachusetts to Porto Alegre Salgado Filho Airport were last updated today.

  • How many operators does momondo search for flights from Massachusetts to Porto Alegre Salgado Filho Airport?

  • How old do you have to be to fly from Massachusetts to Porto Alegre Salgado Filho Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Massachusetts to Porto Alegre Salgado Filho Airport.

  • What documentation or ID do you need to fly to Porto Alegre Salgado Filho Airport?

    The necessary travel and health documents for your Porto Alegre Salgado Filho Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Massachusetts to Porto Alegre

Compare and see reviews for airlines that fly from Massachusetts to Porto Alegre with momondo
Airline
Rating
Free Cancellation
Price
Copa AirlinesPriceFrom $279Free CancellationRating
7.5
1,556 reviews
Search Copa Airlines flights
United AirlinesPriceFrom $334Free CancellationRating
7.4
9,236 reviews
Search United Airlines flights
DeltaPriceFrom $498Free CancellationRating
7.9
8,147 reviews
Search Delta flights
LATAM AirlinesPriceFrom $515Free CancellationRating
7.5
1,918 reviews
Search LATAM Airlines flights
American AirlinesPriceFrom $551Free CancellationRating
7.2
11,229 reviews
Search American Airlines flights
GOLPriceFrom $712Free CancellationRating
7.3
1,167 reviews
Search GOL flights

Why use momondo?

Why should I use momondo to find a flight deal from Massachusetts to Porto Alegre?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Massachusetts to Porto Alegre for you.

Can I find flights from Massachusetts to Porto Alegre with flexible booking policies on momondo?

All flight searches from Massachusetts to Porto Alegre on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Massachusetts to Porto Alegre?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Porto Alegre from Massachusetts.

I’m not ready to book a flight from Massachusetts to Porto Alegre right now. Can momondo alert me if prices change?

Price alerts on flights to Porto Alegre from Massachusetts are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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