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Cheap flights from Massachusetts to Porto Alegre from $361

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 12/5. 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
1 adult, Economy, 0 bags

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Travel Warning: Due to flooding, the airport may be currently closed. Check local travel advisories before booking.

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
7:50 pm - 12:40 am
BOS
-
POA
26h 50m
2 stops
LATAM Airlines Logo
2:25 pm - 6:35 am
POA
-
BOS
17h 10m
1 stop
$721LATAM Airlines
Tue, Nov 24 - Sat, Mar 20
LATAM Airlines Logo
5:00 pm - 4:50 pm
BOS
-
POA
21h 50m
2 stops
LATAM Airlines Logo
6:00 pm - 6:45 am
POA
-
BOS
13h 45m
1 stop
$769LATAM Airlines
Tue, Nov 24 - Sat, Mar 20
Avianca Logo
7:55 am - 10:40 am
BOS
-
POA
24h 45m
2 stops
Avianca Logo
2:00 pm - 6:35 am
POA
-
BOS
18h 35m
2 stops
$787Avianca
Tue, Nov 17 - Wed, Nov 18
LATAM Airlines Logo
3:50 pm - 4:50 pm
BOS
-
POA
23h 00m
2 stops
LATAM Airlines Logo
4:00 pm - 11:19 am
POA
-
BOS
20h 19m
2 stops
$790LATAM Airlines
Tue, Nov 24 - Sat, Mar 20
LATAM Airlines Logo
3:34 pm - 4:50 pm
BOS
-
POA
23h 16m
2 stops
LATAM Airlines Logo
12:25 pm - 6:45 am
POA
-
BOS
19h 20m
2 stops
$809LATAM Airlines
Tue, Nov 24 - Sat, Mar 20
Avianca Logo
7:55 am - 10:40 am
BOS
-
POA
24h 45m
2 stops
Avianca Logo
2:00 pm - 6:35 am
POA
-
BOS
18h 35m
2 stops
$817Avianca
Tue, Nov 17 - Wed, Nov 18
LATAM Airlines Logo
8:55 am - 8:30 am
BOS
-
POA
21h 35m
1 stop
LATAM Airlines Logo
5:40 pm - 2:41 pm
POA
-
BOS
23h 01m
2 stops
$820LATAM Airlines
Tue, Nov 17 - Wed, Nov 18
Delta Logo
10:00 am - 2:55 pm
BOS
-
POA
27h 55m
1 stop
Delta Logo
7:35 am - 11:06 am
POA
-
BOS
28h 31m
2 stops
$834Delta
Fri, Jul 3 - Thu, Jul 30
LATAM Airlines Logo
8:55 am - 12:40 am
BOS
-
POA
13h 45m
1 stop
LATAM Airlines Logo
6:40 am - 11:23 pm
POA
-
BOS
18h 43m
2 stops
$836LATAM Airlines
Tue, Nov 17 - Wed, Nov 18
Copa Airlines Logo
8:45 am - 12:15 am
BOS
-
POA
14h 30m
1 stop
Copa Airlines Logo
1:15 am - 2:34 pm
POA
-
BOS
14h 19m
1 stop
$840Copa Airlines
Sun, Jul 5 - Sat, Aug 1

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LATAM Airlines flights from Massachusetts to Porto Alegre

Our best LATAM Airlines deals on Massachusetts to Porto Alegre flight tickets
LATAM Airlines
Nov 24
BOS7:50 pmBoston Logan Intl
26h 50m
2 stops
POA12:40 amPorto Alegre Salgado Filho
Mar 20
POA2:25 pmPorto Alegre Salgado Filho
17h 10m
1 stop
BOS6:35 amBoston Logan Intl
$721
LATAM Airlines
Nov 24
BOS3:50 pmBoston Logan Intl
23h 00m
2 stops
POA4:50 pmPorto Alegre Salgado Filho
Mar 20
POA6:00 pmPorto Alegre Salgado Filho
13h 45m
1 stop
BOS6:45 amBoston Logan Intl
$769
LATAM Airlines
Nov 24
BOS3:50 pmBoston Logan Intl
23h 00m
2 stops
POA4:50 pmPorto Alegre Salgado Filho
Mar 20
POA4:00 pmPorto Alegre Salgado Filho
20h 19m
2 stops
BOS11:19 amBoston Logan Intl
$790

Avianca flights from Massachusetts to Porto Alegre

Our best Avianca deals on Massachusetts to Porto Alegre flight tickets
Avianca
Nov 17
BOS7:55 amBoston Logan Intl
24h 45m
2 stops
POA10:40 amPorto Alegre Salgado Filho
Nov 18
POA2:00 pmPorto Alegre Salgado Filho
18h 35m
2 stops
BOS6:35 amBoston Logan Intl
$787
Avianca
Nov 17
BOS7:55 amBoston Logan Intl
24h 45m
2 stops
POA10:40 amPorto Alegre Salgado Filho
Nov 18
POA2:00 pmPorto Alegre Salgado Filho
18h 35m
2 stops
BOS6:35 amBoston Logan Intl
$817

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 June 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

Tue 11/24

7:50 pm-12:40 am

2 stops26h 50m

Porto Alegre Salgado Filho

Sat 3/20

2:25 pm-6:35 am

1 stop17h 10m

$721

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Tue 11/24

5:00 pm-4:50 pm

2 stops21h 50m

Porto Alegre Salgado Filho

Sat 3/20

6:00 pm-6:45 am

1 stop13h 45m

$769

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Tue 11/17

7:55 am-10:40 am

2 stops24h 45m

Porto Alegre Salgado Filho

Wed 11/18

2:00 pm-6:35 am

2 stops18h 35m

$787

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Tue 11/24

3:50 pm-4:50 pm

2 stops23h 00m

Porto Alegre Salgado Filho

Sat 3/20

4:00 pm-11:19 am

2 stops20h 19m

$790

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Tue 11/24

3:34 pm-4:50 pm

2 stops23h 16m

Porto Alegre Salgado Filho

Sat 3/20

12:25 pm-6:45 am

2 stops19h 20m

$809

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Tue 11/17

7:55 am-10:40 am

2 stops24h 45m

Porto Alegre Salgado Filho

Wed 11/18

2:00 pm-6:35 am

2 stops18h 35m

$817

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Tue 11/17

8:55 am-8:30 am

1 stop21h 35m

Porto Alegre Salgado Filho

Wed 11/18

5:40 pm-2:41 pm

2 stops23h 01m

$820

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Fri 7/3

10:00 am-2:55 pm

1 stop27h 55m

Porto Alegre Salgado Filho

Thu 7/30

7:35 am-11:06 am

2 stops28h 31m

$834

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Tue 11/17

8:55 am-12:40 am

1 stop13h 45m

Porto Alegre Salgado Filho

Wed 11/18

6:40 am-11:23 pm

2 stops18h 43m

$836
Quickest round-trip

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

Sun 7/5

8:45 am-12:15 am

1 stop14h 30m

Porto Alegre Salgado Filho

Sat 8/1

1:15 am-2:34 pm

1 stop14h 19m

$840

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 February. Flight prices, which tend to average around $270, are often lower during this time because this is during the off-season. If you’re not able to fly to Porto Alegre in February, then September is your next best option. Flight prices from Massachusetts to Porto Alegre during September average around $279.

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

22h 20m

Direct flights

None
The fastest flight from Massachusetts to Porto Alegre takes 22h 20m
There are no direct flights from Massachusetts to Porto Alegre. There are no popular flight routes from Massachusetts to Porto Alegre.
Search flight deals

Frequently asked questions about flying from Massachusetts to Porto Alegre

  • 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 $294Free CancellationRating
7.6
1,568 reviews
Search Copa Airlines flights
United AirlinesPriceFrom $334Free CancellationRating
7.4
9,881 reviews
Search United Airlines flights
LATAM AirlinesPriceFrom $722Free CancellationRating
7.4
1,942 reviews
Search LATAM Airlines flights
DeltaPriceFrom $765Free CancellationRating
7.8
8,431 reviews
Search Delta 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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