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Cheap flights from Massachusetts to Porto Alegre from $576

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 12/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Massachusetts to Porto Alegre

Cheap round-trip flights

Copa Airlines Logo
8:41 am - 12:20 amBOS-POA
14h 39m1 stop
Copa Airlines Logo
1:25 am - 10:53 pmPOA-BOS
22h 28m1 stop
$615Copa Airlines
Find Deal
Wed, Oct 1 - Tue, Oct 14
Copa Airlines Logo
8:41 am - 12:20 amBOS-POA
14h 39m1 stop
Copa Airlines Logo
1:25 am - 7:22 pmPOA-BOS
18h 57m1 stop
$655Copa Airlines
Find Deal
Wed, Sep 10 - Tue, Sep 23
Logo
9:00 am - 7:45 amBOS-POA
21h 45m2 stops
Logo
1:25 am - 7:22 pmPOA-BOS
18h 57m1 stop
$714
Find Deal
Sat, Sep 13 - Mon, Sep 22
Logo
6:55 pm - 7:50 amBOS-POA
35h 55m2 stops
Logo
9:35 am - 7:15 amPOA-BOS
22h 40m2 stops
$730
Find Deal
Wed, Sep 3 - Mon, Sep 15
GOL Logo
9:00 am - 8:05 amBOS-POA
22h 05m2 stops
GOL Logo
11:05 am - 7:15 amPOA-BOS
21h 10m2 stops
$784GOL
Find Deal
Tue, Oct 7 - Mon, Oct 20
GOL Logo
1:00 pm - 11:30 amBOS-POA
21h 30m2 stops
GOL Logo
5:20 am - 10:20 pmPOA-BOS
18h 00m2 stops
$812GOL
Find Deal
Wed, Sep 10 - Wed, Sep 24
Avianca Logo
9:00 am - 10:25 amBOS-POA
24h 25m2 stops
Avianca Logo
8:10 pm - 7:15 amPOA-BOS
36h 05m2 stops
$844Avianca
Find Deal
Thu, Sep 11 - Thu, Sep 25
Avianca Logo
8:55 am - 8:15 amBOS-POA
22h 20m2 stops
Avianca Logo
11:40 am - 6:35 amPOA-BOS
20h 55m2 stops
$856Avianca
Find Deal
Tue, Oct 28 - Wed, Nov 5
Air Canada Logo
10:35 am - 4:30 pmBOS-POA
28h 55m2 stops
Air Canada Logo
3:45 pm - 9:32 amPOA-BOS
19h 47m2 stops
$902Air Canada
Find Deal
Thu, Oct 30 - Sat, Nov 8
Air Canada Logo
3:15 pm - 2:35 pmBOS-POA
22h 20m2 stops
Air Canada Logo
2:05 pm - 6:02 pmPOA-BOS
28h 57m2 stops
$908Air Canada
Find Deal
Wed, Oct 15 - Thu, Oct 30

LATAM Airlines flights from Massachusetts to Porto Alegre

Our best LATAM Airlines deals on Massachusetts to Porto Alegre flight tickets
LATAM Airlines
Sep 18
BOS9:55 amBoston Logan Intl
13h 30m
1 stop
POA12:25 amPorto Alegre Salgado Filho
Sep 27
POA8:55 pmPorto Alegre Salgado Filho
27h 31m
2 stops
BOS11:26 pmBoston Logan Intl
$959
Find similar
LATAM Airlines
Aug 23
BOS3:50 pmBoston Logan Intl
27h 00m
2 stops
POA7:50 pmPorto Alegre Salgado Filho
Aug 29
POA6:40 pmPorto Alegre Salgado Filho
13h 55m
1 stop
BOS7:35 amBoston Logan Intl
$1,043
Find similar
LATAM Airlines
Aug 16
BOS9:55 amBoston Logan Intl
22h 25m
1 stop
POA9:20 amPorto Alegre Salgado Filho
Aug 23
POA10:10 amPorto Alegre Salgado Filho
22h 25m
1 stop
BOS7:35 amBoston Logan Intl
$1,473
Find similar

Copa Airlines flights from Massachusetts to Porto Alegre

Our best Copa Airlines deals on Massachusetts to Porto Alegre flight tickets
Copa Airlines
Oct 1
BOS8:41 amBoston Logan Intl
14h 39m
1 stop
POA12:20 amPorto Alegre Salgado Filho
Oct 14
POA1:25 amPorto Alegre Salgado Filho
22h 28m
1 stop
BOS10:53 pmBoston Logan Intl
$615
Find similar
Copa Airlines
Sep 10
BOS8:41 amBoston Logan Intl
14h 39m
1 stop
POA12:20 amPorto Alegre Salgado Filho
Sep 23
POA1:25 amPorto Alegre Salgado Filho
18h 57m
1 stop
BOS7:22 pmBoston Logan Intl
$655
Find similar
Copa Airlines
Oct 2
BOS3:49 pmBoston Logan Intl
31h 31m
1 stop
POA12:20 amPorto Alegre Salgado Filho
Oct 16
POA1:25 amPorto Alegre Salgado Filho
22h 28m
1 stop
BOS10:53 pmBoston Logan Intl
$671
Find similar

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 August 14, 2025.
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

Wed 10/1

8:41 am-12:20 am

1 stop14h 39m

Porto Alegre Salgado Filho

Tue 10/14

1:25 am-10:53 pm

1 stop22h 28m

$615

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Wed 9/10

8:41 am-12:20 am

1 stop14h 39m

Porto Alegre Salgado Filho

Tue 9/23

1:25 am-7:22 pm

1 stop18h 57m

$655

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Sat 9/13

9:00 am-7:45 am

2 stops21h 45m

Porto Alegre Salgado Filho

Mon 9/22

1:25 am-7:22 pm

1 stop18h 57m

$714

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Wed 9/3

6:55 pm-7:50 am

2 stops35h 55m

Porto Alegre Salgado Filho

Mon 9/15

9:35 am-7:15 am

2 stops22h 40m

$730

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Tue 10/7

9:00 am-8:05 am

2 stops22h 05m

Porto Alegre Salgado Filho

Mon 10/20

11:05 am-7:15 am

2 stops21h 10m

$784

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Wed 9/10

1:00 pm-11:30 am

2 stops21h 30m

Porto Alegre Salgado Filho

Wed 9/24

5:20 am-10:20 pm

2 stops18h 00m

$812

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Thu 9/11

9:00 am-10:25 am

2 stops24h 25m

Porto Alegre Salgado Filho

Thu 9/25

8:10 pm-7:15 am

2 stops36h 05m

$844

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Tue 10/28

8:55 am-8:15 am

2 stops22h 20m

Porto Alegre Salgado Filho

Wed 11/5

11:40 am-6:35 am

2 stops20h 55m

$856

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Thu 10/30

10:35 am-4:30 pm

2 stops28h 55m

Porto Alegre Salgado Filho

Sat 11/8

3:45 pm-9:32 am

2 stops19h 47m

$902

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Wed 10/15

3:15 pm-2:35 pm

2 stops22h 20m

Porto Alegre Salgado Filho

Thu 10/30

2:05 pm-6:02 pm

2 stops28h 57m

$908

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 September is your next best option. Flight prices from Massachusetts to Porto Alegre during September average around $541.

What is the cheapest day to depart on your flight to Porto Alegre?

Our data shows that Tuesday is the least expensive day to fly to Porto Alegre. Tickets to fly out on this day can be as low as $714. On the other hand, Friday is the most expensive day to depart from Massachusetts because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,701.

What is the cheapest time of day to depart on your flight to Porto Alegre?

Our most recent data shows that the best time of day to fly to Porto Alegre is in the evening. Flights from Massachusetts to Porto Alegre during this time can be as low as $865. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $1,064 on average. Flights to Porto Alegre from Massachusetts at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

You could potentially save up to 33% 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

Best Price Found

$576

Fastest flight time

13h 30m

Direct flights

None

Airports in Porto Alegre

1 airport
The best one-way flight to Porto Alegre from Massachusetts in the past 72 hours is $576. The best round-trip flight deal from Massachusetts to Porto Alegre found on momondo in the last 72 hours is $615.
The fastest flight from Massachusetts to Porto Alegre takes 13h 30m
There are no direct flights from Massachusetts to Porto Alegre. Popular non-direct route for this connection is Boston Logan Intl Airport - Porto Alegre Salgado Filho Airport.
There is 1 airport near Porto Alegre: Porto Alegre Salgado Filho (POA)
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  • 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
DeltaPriceFrom $291Free CancellationRating
8.0
7,980 reviews
Search Delta flights
Copa AirlinesPriceFrom $450Free CancellationRating
7.5
1,507 reviews
Search Copa Airlines flights
LATAM AirlinesPriceFrom $501Free CancellationRating
7.5
1,840 reviews
Search LATAM Airlines flights
American AirlinesPriceFrom $510Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
GOLPriceFrom $712Free CancellationRating
7.3
1,093 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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