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Porto Alegre

$313+ Cheap flights from Boston (BOS) 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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — POA
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
1 adult, Economy
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Cheap flight deals from Boston to Porto Alegre

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Porto Alegre (POA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated junio 12, 2025.

Round-trip from

$515
(Copa Airlines)

One-way from

$449
(oojo)

Popular in

December

Cheapest in

June

Average price

$486
From Boston Logan Intl to Porto Alegre Salgado Filho
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One-way flight from Boston Logan Intl to Porto Alegre Salgado Filho
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Highest demand for flights based on searches. 18% potential increase in price ($145 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($35 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Boston to Porto Alegre

Cheapest flights from Boston to Porto Alegre
Explore the most affordable flight options available from Boston to Porto Alegre. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 12, 2025.

This Copa Airlines deal was found by Cheapflights users on 6/10. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/98:41 amBOS - POA
1 stop14h 39mCopa Airlines
lun. 9/221:27 amPOA - BOS
1 stop18h 55mCopa Airlines
Deal found 6/10$515
This oojo deal was found by Cheapflights users on 6/12. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/189:55 amBOS - POA
1 stop22h 25mLATAM Airlines
sáb. 9/2712:35 pmPOA - BOS
1 stop20h 00mLATAM Airlines
Deal found 6/12$580
This Delta deal was found by Cheapflights users on 6/11. 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.
sáb. 11/87:00 amBOS - POA
2 stops21h 25mDelta
mié. 11/195:55 pmPOA - BOS
1 stop14h 40mDelta
Deal found 6/11$596
This American Airlines deal was found by Cheapflights users on 6/10. 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.
mar. 9/91:05 pmBOS - POA
2 stops23h 20mAmerican Airlines
mar. 9/236:35 pmPOA - BOS
2 stops20h 10mAmerican Airlines
Deal found 6/10$643
This Expedia deal was found by Cheapflights users on 6/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/95:18 pmBOS - POA
2 stops19h 07mMultiple Airlines
lun. 9/221:27 amPOA - BOS
1 stop18h 55mMultiple Airlines
Deal found 6/10$727
This Gurufare deal was found by Cheapflights users on 6/10. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 6/116:13 pmBOS - POA
2 stops46h 37mGOL
mar. 9/3010:25 amPOA - BOS
2 stops26h 46mGOL
Deal found 6/10$816
This Air Canada deal was found by Cheapflights users on 6/10. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/76:30 pmBOS - POA
2 stops21h 20mAir Canada
mié. 9/242:40 pmPOA - BOS
2 stops19h 50mAir Canada
Deal found 6/10$837

Cheapflights Fare Finder

Customize your flight search to find flights from Boston 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 junio 12, 2025.
Use the filters below to find and compare flights from Boston to Porto Alegre that are best for you.

Fly from

Boston

Fly to

Porto Alegre

Route

Depart

Return

Price

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

mar. 9/9

8:41 am-12:20 am

1 stop14h 39m

Porto Alegre Salgado Filho

lun. 9/22

1:27 am-7:22 pm

1 stop18h 55m

$515

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

jue. 9/18

9:55 am-9:20 am

1 stop22h 25m

Porto Alegre Salgado Filho

sáb. 9/27

12:35 pm-7:35 am

1 stop20h 00m

$580

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

sáb. 11/8

7:00 am-6:25 am

2 stops21h 25m

Porto Alegre Salgado Filho

mié. 11/19

5:55 pm-6:35 am

1 stop14h 40m

$596

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

mar. 9/9

1:05 pm-1:25 pm

2 stops23h 20m

Porto Alegre Salgado Filho

mar. 9/23

6:35 pm-1:45 pm

2 stops20h 10m

$643

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

mar. 9/9

5:18 pm-1:25 pm

2 stops19h 07m

Porto Alegre Salgado Filho

lun. 9/22

1:27 am-7:22 pm

1 stop18h 55m

$727

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

dom. 9/7

6:30 pm-4:50 pm

2 stops21h 20m

Porto Alegre Salgado Filho

mié. 9/24

2:40 pm-9:30 am

2 stops19h 50m

$837

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

mié. 11/5

7:00 am-6:25 am

2 stops21h 25m

$313

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

sáb. 11/1

7:00 am-6:25 am

2 stops22h 25m

$317

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

mié. 7/23

8:40 am-6:25 am

2 stops20h 45m

$382

BostonPorto Alegre

BOS - POA

BOSPOA

Boston Logan Intl

mié. 7/23

5:56 pm-4:15 pm

2 stops21h 19m

$449

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

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

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

What is the cheapest time of day to fly from BOS to POA?

Find hourly flight availability from Boston to Porto Alegre. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated junio 12, 2025.

It’s typically best to fly out from Boston to Porto Alegre in the evening. Doing so could potentially save you 19% on the flight price compared to flying at noon, which is usually more expensive.

Rainfall in Porto Alegre by month

Plan your trip to Porto Alegre by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Porto Alegre ranges from 2.8 - 5.1 inches per month. September is typically the wettest month, when rainfall can reach 5.1 in. November is typically the driest time to visit Porto Alegre when rainfall is around 2.8 in.

Temperature in Porto Alegre by month

Plan your trip to Porto Alegre by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Porto Alegre, use this chart to help with planning. For those seeking warmer temperatures, February is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 55.4 F).

Reviews of airlines servicing Porto Alegre

Get insights into the airlines that provide service to Porto Alegre. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Porto Alegre. Reviews last updated junio 12, 2025.
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
LATAM Airlines
7.5
Good
1,785 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Copa Airlines
7.5
Good
1,451 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
GOL
7.3
Good
1,073 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Boston 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 are the cheapest airlines flying from Boston to Porto Alegre round-trip?

    Our cheapest airline available from Boston to Porto Alegre is Copa Airlines. Our recent data shows that you can find tickets from as low as $515 on this airline. Additional options worth looking into are Delta and American Airlines, starting at $599 and $643 round-trip. Copa Airlines is priced at 20% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Boston 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Complete your trip

Complete your trip to Porto Alegre by adding a car rental and/or hotel reservation to your travel itinerary.
Porto Alegre car rentals
Porto Alegre Salgado Filho Airport car rentals

Top 5 airlines flying from Boston to Porto Alegre

Discover the top 5 airlines that operate flights from Boston 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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$291Average$575FlexibilityNo cancel feeOn-timeN/A
Copa AirlinesCheapest$450Average$645FlexibilityNo cancel feeOn-time70%
LATAM AirlinesCheapest$501Average$621FlexibilityNo cancel feeOn-time81%
American AirlinesCheapest$510Average$684FlexibilityNo cancel feeOn-time71%
GOLCheapest$712Average$863FlexibilityNo cancel feeOn-time74%

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