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Cheap flights from Massachusetts to Porto Alegre from $714

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Massachusetts to Porto Alegre departing on 8/19. 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
1 adult, Economy, 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.
LATAM Airlines Logo
10:30 am - 6:15 am
BOS
-
POA
18h 45m
2 stops
LATAM Airlines Logo
5:50 pm - 7:35 am
POA
-
BOS
14h 45m
1 stop
$714LATAM Airlines
Wed, Aug 19 - Wed, Sep 9
LATAM Airlines Logo
3:00 pm - 5:00 pm
BOS
-
POA
25h 00m
2 stops
LATAM Airlines Logo
3:30 pm - 7:35 am
POA
-
BOS
17h 05m
2 stops
$720LATAM Airlines
Wed, Aug 19 - Wed, Sep 9
LATAM Airlines Logo
9:55 am - 12:05 pm
BOS
-
POA
25h 10m
2 stops
LATAM Airlines Logo
9:40 pm - 7:35 am
POA
-
BOS
34h 55m
2 stops
$761LATAM Airlines
Wed, May 6 - Fri, May 15
LATAM Airlines Logo
10:30 am - 6:15 am
BOS
-
POA
18h 45m
2 stops
LATAM Airlines Logo
5:50 pm - 7:35 am
POA
-
BOS
14h 45m
1 stop
$764LATAM Airlines
Wed, Aug 19 - Wed, Sep 9
LATAM Airlines Logo
9:55 am - 9:15 am
BOS
-
POA
22h 20m
1 stop
LATAM Airlines Logo
6:40 am - 7:35 am
POA
-
BOS
25h 55m
1 stop
$766LATAM Airlines
Wed, Aug 26 - Wed, Sep 9
LATAM Airlines Logo
5:00 pm - 2:15 pm
BOS
-
POA
20h 15m
2 stops
LATAM Airlines Logo
3:30 pm - 7:35 am
POA
-
BOS
17h 05m
2 stops
$770LATAM Airlines
Wed, Aug 26 - Wed, Sep 9
United Airlines Logo
5:45 am - 2:05 pm
BOS
-
POA
31h 20m
2 stops
United Airlines Logo
4:05 pm - 7:26 pm
POA
-
BOS
28h 21m
2 stops
$802United Airlines
Mon, May 4 - Sun, May 17
Delta Logo
9:55 am - 12:40 am
BOS
-
POA
13h 45m
1 stop
Delta Logo
5:50 pm - 7:35 am
POA
-
BOS
14h 45m
1 stop
$804Delta
Wed, Aug 19 - Wed, Sep 9
American Airlines Logo
3:17 pm - 10:55 am
BOS
-
POA
18h 38m
2 stops
American Airlines Logo
2:00 pm - 11:51 am
POA
-
BOS
22h 51m
2 stops
$893American Airlines
Sun, Apr 12 - Mon, May 4
Copa Airlines Logo
8:52 am - 12:20 am
BOS
-
POA
14h 28m
1 stop
Copa Airlines Logo
1:20 am - 11:08 pm
POA
-
BOS
22h 48m
1 stop
$899Copa Airlines
Mon, May 4 - Sat, May 16

LATAM Airlines flights from Massachusetts to Porto Alegre

Our best LATAM Airlines deals on Massachusetts to Porto Alegre flight tickets
LATAM Airlines
Aug 19
BOS10:30 amBoston Logan Intl
18h 45m
2 stops
POA6:15 amPorto Alegre Salgado Filho
Sep 9
POA5:50 pmPorto Alegre Salgado Filho
14h 45m
1 stop
BOS7:35 amBoston Logan Intl
$714
LATAM Airlines
Aug 19
BOS3:00 pmBoston Logan Intl
25h 00m
2 stops
POA5:00 pmPorto Alegre Salgado Filho
Sep 9
POA3:30 pmPorto Alegre Salgado Filho
17h 05m
2 stops
BOS7:35 amBoston Logan Intl
$720
LATAM Airlines
May 6
BOS9:55 amBoston Logan Intl
25h 10m
2 stops
POA12:05 pmPorto Alegre Salgado Filho
May 15
POA9:40 pmPorto Alegre Salgado Filho
34h 55m
2 stops
BOS7:35 amBoston Logan Intl
$761

Delta flights from Massachusetts to Porto Alegre

Our best Delta deals on Massachusetts to Porto Alegre flight tickets
Delta
Aug 19
BOS9:55 amBoston Logan Intl
13h 45m
1 stop
POA12:40 amPorto Alegre Salgado Filho
Sep 9
POA5:50 pmPorto Alegre Salgado Filho
14h 45m
1 stop
BOS7:35 amBoston Logan Intl
$804
Delta
Aug 19
BOS9:55 amBoston Logan Intl
13h 45m
1 stop
POA12:40 amPorto Alegre Salgado Filho
Sep 9
POA5:50 pmPorto Alegre Salgado Filho
14h 45m
1 stop
BOS7:35 amBoston Logan Intl
$909

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 March 24, 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

Cheapest round-trip

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Wed 8/19

10:30 am-6:15 am

2 stops18h 45m

Porto Alegre Salgado Filho

Wed 9/9

5:50 pm-7:35 am

1 stop14h 45m

$714

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Wed 8/19

3:00 pm-5:00 pm

2 stops25h 00m

Porto Alegre Salgado Filho

Wed 9/9

3:30 pm-7:35 am

2 stops17h 05m

$720

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Wed 5/6

9:55 am-12:05 pm

2 stops25h 10m

Porto Alegre Salgado Filho

Fri 5/15

9:40 pm-7:35 am

2 stops34h 55m

$761

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Wed 8/19

10:30 am-6:15 am

2 stops18h 45m

Porto Alegre Salgado Filho

Wed 9/9

5:50 pm-7:35 am

1 stop14h 45m

$764

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Wed 8/26

9:55 am-9:15 am

1 stop22h 20m

Porto Alegre Salgado Filho

Wed 9/9

6:40 am-7:35 am

1 stop25h 55m

$766

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Wed 8/26

5:00 pm-2:15 pm

2 stops20h 15m

Porto Alegre Salgado Filho

Wed 9/9

3:30 pm-7:35 am

2 stops17h 05m

$770

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Mon 5/4

5:45 am-2:05 pm

2 stops31h 20m

Porto Alegre Salgado Filho

Sun 5/17

4:05 pm-7:26 pm

2 stops28h 21m

$802
Quickest round-trip

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Wed 8/19

9:55 am-12:40 am

1 stop13h 45m

Porto Alegre Salgado Filho

Wed 9/9

5:50 pm-7:35 am

1 stop14h 45m

$804

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Sun 4/12

3:17 pm-10:55 am

2 stops18h 38m

Porto Alegre Salgado Filho

Mon 5/4

2:00 pm-11:51 am

2 stops22h 51m

$893

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Mon 5/4

8:52 am-12:20 am

1 stop14h 28m

Porto Alegre Salgado Filho

Sat 5/16

1:20 am-11:08 pm

1 stop22h 48m

$899

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Porto Alegre from

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 7% 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

14h 37m

Direct flights

None
The fastest flight from Massachusetts to Porto Alegre takes 14h 37m
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 $270Free CancellationRating
7.5
1,577 reviews
Search Copa Airlines flights
United AirlinesPriceFrom $334Free CancellationRating
7.4
9,474 reviews
Search United Airlines flights
LATAM AirlinesPriceFrom $519Free CancellationRating
7.4
1,908 reviews
Search LATAM Airlines flights
DeltaPriceFrom $575Free CancellationRating
7.9
8,325 reviews
Search Delta flights
GOLPriceFrom $712Free CancellationRating
7.3
1,195 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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