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$323+ Cheap flights from Porto Alegre (POA) to Boston (BOS)

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 10/29. Fares are subject to change and may not be available on all flights or dates of travel.
POA — BOS
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheapflights Tip: The best prices from Porto Alegre Salgado Filho to Boston Logan Intl are usually found in November or June, booked 57 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from Porto Alegre to Boston

Discover tips and strategies to find the most affordable flight options for your journey from Porto Alegre (POA) to Boston (BOS). 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 September 17, 2025.

Round-trip from

$495
(Delta)

One-way from

$323
(Copa Airlines)

Popular in

December

Cheapest in

November

Average price

$611
From Porto Alegre Salgado Filho to Boston Logan Intl
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One-way flight from Porto Alegre Salgado Filho to Boston Logan Intl
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Highest demand for flights based on searches. 3% potential increase in price ($24 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Porto Alegre to Boston

Cheapest flights from Porto Alegre to Boston
Explore the most affordable flight options available from Porto Alegre to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This Delta deal was found by Cheapflights users on 9/16. 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.
Tue 11/255:55 pmPOA - BOS
1 stop14h 40mDelta
Fri 12/58:15 amBOS - POA
2 stops20h 15mDelta
Deal found 9/16$495
This LATAM Airlines deal was found by Cheapflights users on 9/16. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/305:55 pmPOA - BOS
1 stop14h 40mLATAM Airlines
Fri 11/77:35 amBOS - POA
2 stops31h 25mLATAM Airlines
Deal found 9/16$500
This Delta deal was found by Cheapflights users on 9/16. 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.
Thu 10/305:55 pmPOA - BOS
1 stop14h 40mDelta
Mon 11/108:55 amBOS - POA
1 stop13h 30mDelta
Deal found 9/16$502
This Delta deal was found by Cheapflights users on 9/15. 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.
Fri 10/175:45 pmPOA - BOS
1 stop14h 50mDelta
Mon 10/279:55 amBOS - POA
1 stop13h 45mDelta
Deal found 9/15$504
This LATAM Airlines deal was found by Cheapflights users on 9/16. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/127:30 pmPOA - BOS
2 stops37h 05mLATAM Airlines
Sun 11/305:05 pmBOS - POA
2 stops24h 15mLATAM Airlines
Deal found 9/16$506
This FlightHub deal was found by Cheapflights users on 9/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/248:55 pmPOA - BOS
2 stops27h 31mLATAM Airlines
Tue 11/43:20 pmBOS - POA
2 stops23h 40mLATAM Airlines
Deal found 9/16$509
This Delta deal was found by Cheapflights users on 9/16. 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.
Tue 9/306:40 amPOA - BOS
2 stops17h 46mDelta
Fri 10/245:00 pmBOS - POA
2 stops30h 25mDelta
Deal found 9/16$510
This American Airlines deal was found by Cheapflights users on 9/16. 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.
Thu 10/231:55 pmPOA - BOS
2 stops21h 21mAmerican Airlines
Tue 11/118:00 amBOS - POA
2 stops25h 00mAmerican Airlines
Deal found 9/16$516
This 123 Milhas deal was found by Cheapflights users on 9/15. 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 123 Milhas is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/157:45 amPOA - BOS
2 stops19h 37mLATAM Airlines
Wed 11/198:55 amBOS - POA
1 stop13h 30mLATAM Airlines
Deal found 9/15$521
This MaxMilhas deal was found by Cheapflights users on 9/16. 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 MaxMilhas is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2012:40 pmPOA - BOS
1 stop19h 55mLATAM Airlines
Mon 12/15:00 pmBOS - POA
2 stops24h 20mLATAM Airlines
Deal found 9/16$534

Cheapflights Fare Finder

 
Customize your flight search to find flights from Porto Alegre to Boston 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 September 17, 2025.
Use the filters below to find and compare flights from Porto Alegre to Boston that are best for you.

Fly from

Porto Alegre

Fly to

Boston

Route

Depart

Return

Price

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Tue 11/25

5:55 pm-6:35 am

1 stop14h 40m

Boston Logan Intl

Fri 12/5

8:15 am-6:30 am

2 stops20h 15m

$495

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Tue 11/25

1:40 pm-6:35 am

2 stops18h 55m

Boston Logan Intl

Fri 12/5

10:15 am-6:30 am

2 stops18h 15m

$501

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Thu 10/30

5:55 pm-7:35 am

1 stop14h 40m

Boston Logan Intl

Fri 11/7

7:35 am-5:00 pm

2 stops31h 25m

$501

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Thu 10/30

5:55 pm-7:35 am

1 stop14h 40m

Boston Logan Intl

Mon 11/10

8:55 am-12:25 am

1 stop13h 30m

$502

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Thu 10/30

2:05 pm-7:35 am

2 stops18h 30m

Boston Logan Intl

Mon 11/10

8:55 am-10:15 am

2 stops23h 20m

$502

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Fri 10/17

4:00 am-7:35 am

2 stops28h 35m

Boston Logan Intl

Mon 10/27

9:55 am-12:40 am

1 stop13h 45m

$502

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Fri 10/17

5:45 pm-7:35 am

1 stop14h 50m

Boston Logan Intl

Mon 10/27

9:55 am-12:40 am

1 stop13h 45m

$504

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Wed 11/12

7:30 pm-6:35 am

2 stops37h 05m

Boston Logan Intl

Sun 11/30

5:05 pm-7:20 pm

2 stops24h 15m

$506

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Tue 9/30

6:40 am-11:26 pm

2 stops17h 46m

Boston Logan Intl

Fri 10/24

5:00 pm-12:25 am

2 stops30h 25m

$510

Porto AlegreBoston

POA - BOS

POABOS

Porto Alegre Salgado Filho

Wed 10/29

1:30 am-11:02 pm

1 stop22h 32m

$323

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 16 results
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Best time to book a flight from Porto Alegre to Boston

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

How far ahead should I book a flight from Porto Alegre to Boston?

Use this chart to determine the optimal time to book a round-trip flight from Porto Alegre to Boston. Price data was last updated on September 12, 2025.

To ensure you get the cheapest price possible for a flight from Porto Alegre to Boston, you should look to book at least 57 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Porto Alegre to Boston?

Currently, January is the cheapest month in which you can book a flight from Porto Alegre to Boston (average of $218). Flying from Porto Alegre to Boston in July is currently the most expensive (average of $311). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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

Find hourly flight availability from Porto Alegre to Boston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

It’s typically best to fly out from Porto Alegre to Boston in the afternoon. Doing so could potentially save you 15% on the flight price compared to flying at noon, which is usually more expensive.

Reviews of airlines servicing Boston

Get insights into the airlines that provide service to Boston. 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 Boston. Reviews last updated September 17, 2025.
Get a feel of what it's like to fly with Copa Airlines and United Airlines from Porto Alegre to Boston by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Copa Airlines
7.6
Good
1,533 reviews

Entertainment

6.8

Overall

7.6

Boarding

7.8

Comfort

7.4

Crew

8.1

Food

6.8

Reviews

1 / 20
4.0
Okay

Juan Pablo,Sep 2025

PTY - VVI

not a good expirience, the plane was packed, the seats wear very unconftrable, coudent conect with the entratainmente service on the plane, the onboarding was in charge of a very angry lady i really had a unplesent trip
Copa Airlines
7.6
Good
1,533 reviews
Copa Airlines
7.6
Good
1,533 reviews

Entertainment

6.8

Overall

7.6

Boarding

7.8

Comfort

7.4

Crew

8.1

Food

6.8

Reviews

1 / 20
4.0
Okay

Juan Pablo,Sep 2025

PTY - VVI

not a good expirience, the plane was packed, the seats wear very unconftrable, coudent conect with the entratainmente service on the plane, the onboarding was in charge of a very angry lady i really had a unplesent trip
United Airlines
7.4
Good
8,926 reviews
Copa Airlines
7.6
Good
1,533 reviews

Entertainment

6.8

Overall

7.6

Boarding

7.8

Comfort

7.4

Crew

8.1

Food

6.8

Reviews

1 / 20
4.0
Okay

Juan Pablo,Sep 2025

PTY - VVI

not a good expirience, the plane was packed, the seats wear very unconftrable, coudent conect with the entratainmente service on the plane, the onboarding was in charge of a very angry lady i really had a unplesent trip

Related info for your journey

Find useful and relevant information for your journey from Porto Alegre to Boston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Porto Alegre to Boston?

    Departing from Porto Alegre to Boston will take you 14h 40m. Porto Alegre and Boston are separated by a distance of 5153 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Porto Alegre to Boston round-trip?

    According to our current data, Copa Airlines ($560), and United Airlines ($624) offers the cheapest pricing from Porto Alegre to Boston. Copa Airlines is 25% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Porto Alegre to Boston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Porto Alegre to Boston?

    Currently, January is the cheapest month in which you can book a flight from Porto Alegre to Boston (average of $218). Flying from Porto Alegre to Boston in July is currently the most expensive (average of $311). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Cambridge
Medford
Hampton Beach
Watertown
Seabrook
Seekonk
Lincoln
Lowell
Smithfield
Cranston
Chestnut Hill
Chelsea
Warwick
Peabody
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York Beach
Swansea
Old Orchard Beach
Brockton
Waltham

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Top 2 airlines flying from Porto Alegre to Boston

Discover the top 2 airlines that operate flights from Porto Alegre to Boston. 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Copa AirlinesCheapest$560Average$615FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$624Average$855FlexibilityNo cancel feeOn-time69%

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