$386+ 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 6/15. Fares are subject to change and may not be available on all flights or dates of travel.
POA — BOS
May 15 — May 221
Round-trip
1 adult, Economy
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Find cheap flights from Porto Alegre to Boston with Cheapflights
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Porto Alegre to Boston
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Cheapest flights from Porto Alegre to BostonExplore 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 April 15, 2026.
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 April 15, 2026.
This American Airlines deal was found by Cheapflights users on 4/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/56:25 pm
POA
- BOS
2 stops19h 33m
American Airlines
Sat 7/46:03 pm
BOS
- POA
2 stops20h 32m
American Airlines
Deal found 4/12![American Airlines logo]()
$735
This Copa Airlines deal was found by Cheapflights users on 4/15. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/291:15 am
POA
- BOS
1 stop22h 55m
Copa Airlines
Sun 8/238:45 am
BOS
- POA
1 stop14h 30m
Copa Airlines
Deal found 4/15![Copa Airlines logo]()
$790
This American Airlines deal was found by Cheapflights users on 4/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/216:25 pm
POA
- BOS
2 stops18h 47m
American Airlines
Mon 10/51:01 pm
BOS
- POA
2 stops25h 34m
American Airlines
Deal found 4/11![American Airlines logo]()
$808
This American Airlines deal was found by Cheapflights users on 4/14. 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.
Wed 6/172:00 pm
POA
- BOS
2 stops21h 06m
American Airlines
Wed 8/1211:53 am
BOS
- POA
2 stops21h 47m
American Airlines
Deal found 4/14![American Airlines logo]()
$812
This Copa Airlines deal was found by Cheapflights users on 4/13. 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.
Tue 6/161:20 am
POA
- BOS
1 stop22h 48m
Copa Airlines
Wed 8/128:45 am
BOS
- POA
1 stop14h 30m
Copa Airlines
Deal found 4/13![Copa Airlines logo]()
$818
This American Airlines deal was found by Cheapflights users on 4/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/302:00 pm
POA
- BOS
2 stops21h 07m
American Airlines
Sun 8/233:41 pm
BOS
- POA
2 stops22h 54m
American Airlines
Deal found 4/11![American Airlines logo]()
$882
This Air Canada deal was found by Cheapflights users on 4/13. 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.
Wed 10/215:10 pm
POA
- BOS
2 stops22h 31m
Air Canada
Tue 11/33:20 pm
BOS
- POA
2 stops23h 00m
Air Canada
Deal found 4/13![Air Canada logo]()
$897
Best flights from Porto Alegre to BostonDiscover carefully curated flight deals from Porto Alegre to Boston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 15, 2026.
Discover carefully curated flight deals from Porto Alegre to Boston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 15, 2026.
This Copa Airlines deal was found by Cheapflights users on 4/11. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/291:15 am
POA
- BOS
1 stop22h 55m
Copa Airlines
Sun 8/238:45 am
BOS
- POA
1 stop14h 30m
Copa Airlines
Deal found 4/11![Copa Airlines logo]()
$790
This United Airlines deal was found by Cheapflights users on 4/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/215:10 pm
POA
- BOS
2 stops18h 07m
United Airlines
Thu 9/246:00 am
BOS
- POA
2 stops31h 20m
United Airlines
Deal found 4/10![United Airlines logo]()
$947
This American Airlines deal was found by Cheapflights users on 4/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/156:25 pm
POA
- BOS
2 stops21h 51m
American Airlines
Wed 10/281:01 pm
BOS
- POA
2 stops20h 39m
American Airlines
Deal found 4/12![American Airlines logo]()
$960
This Kiwi.com deal was found by Cheapflights users on 4/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/181:20 am
POA
- BOS
1 stop22h 48m
Multiple Airlines
Wed 5/2711:26 am
BOS
- POA
2 stops55h 34m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$1,091
This Copa Airlines deal was found by Cheapflights users on 4/11. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/161:20 am
POA
- BOS
1 stop22h 48m
Copa Airlines
Wed 8/128:45 am
BOS
- POA
1 stop14h 30m
Copa Airlines
Deal found 4/11![Copa Airlines logo]()
$790
This Copa Airlines deal was found by Cheapflights users on 4/12. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/41:20 am
POA
- BOS
1 stop22h 48m
Copa Airlines
Sat 7/48:45 am
BOS
- POA
1 stop14h 30m
Copa Airlines
Deal found 4/12![Copa Airlines logo]()
$1,088
Last-minute flights from Porto Alegre to BostonDiscover last-minute flight deals from Porto Alegre to Boston. Data last updated April 15, 2026 and is based on user searches.
Discover last-minute flight deals from Porto Alegre to Boston. Data last updated April 15, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 4/14. 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.
Fri 5/153:15 pm
POA
- BOS
2 stops21h 55m
Azul
Thu 5/213:57 pm
BOS
- POA
2 stops23h 58m
Azul
Deal found 4/14![Azul logo]()
$1,066
This Travelocity deal was found by Cheapflights users on 4/13. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/195:50 pm
POA
- BOS
2 stops30h 41m
Multiple Airlines
Wed 5/2710:14 am
BOS
- POA
2 stops19h 01m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$924
This LATAM Airlines deal was found by Cheapflights users on 4/12. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/196:40 am
POA
- BOS
2 stops17h 51m
LATAM Airlines
Wed 5/279:05 am
BOS
- POA
2 stops20h 10m
LATAM Airlines
Deal found 4/12![LATAM Airlines logo]()
$948
This American Airlines deal was found by Cheapflights users on 4/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/196:25 pm
POA
- BOS
2 stops20h 29m
American Airlines
Tue 5/263:18 pm
BOS
- POA
2 stops23h 17m
American Airlines
Deal found 4/12![American Airlines logo]()
$965
This Mytrip deal was found by Cheapflights users on 4/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/194:10 am
POA
- BOS
3 stops40h 05m
Multiple Airlines
Tue 5/268:45 am
BOS
- POA
2 stops28h 35m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$1,001
This LATAM Airlines deal was found by Cheapflights users on 4/12. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/204:10 am
POA
- BOS
2 stops20h 21m
LATAM Airlines
Wed 5/272:00 pm
BOS
- POA
2 stops23h 15m
LATAM Airlines
Deal found 4/12![LATAM Airlines logo]()
$908
This LATAM Airlines deal was found by Cheapflights users on 4/11. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/217:25 am
POA
- BOS
2 stops18h 58m
LATAM Airlines
Wed 5/272:00 pm
BOS
- POA
2 stops23h 15m
LATAM Airlines
Deal found 4/11![LATAM Airlines logo]()
$898
This Cheapflightsfares deal was found by Cheapflights users on 4/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/226:40 am
POA
- BOS
2 stops17h 51m
LATAM Airlines
Sat 5/301:29 pm
BOS
- POA
2 stops27h 46m
LATAM Airlines
Deal found 4/12![LATAM Airlines logo]()
$935
This Copa Airlines deal was found by Cheapflights users on 4/12. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/261:20 am
POA
- BOS
1 stop22h 48m
Copa Airlines
Wed 6/38:52 am
BOS
- POA
1 stop14h 28m
Copa Airlines
Deal found 4/12![Copa Airlines logo]()
$939
This LATAM Airlines deal was found by Cheapflights users on 4/12. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/276:40 am
POA
- BOS
2 stops17h 51m
LATAM Airlines
Wed 6/312:25 pm
BOS
- POA
2 stops16h 50m
LATAM Airlines
Deal found 4/12![LATAM Airlines logo]()
$902
One-way flights from Porto Alegre to BostonSearch for one-way flight options from Porto Alegre to Boston. Find affordable one-way fares based on user searches. Data last updated April 15, 2026.
Search for one-way flight options from Porto Alegre to Boston. Find affordable one-way fares based on user searches. Data last updated April 15, 2026.
This FlipMilhas deal was found by Cheapflights users on 4/15. 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 FlipMilhas is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/151:20 am
POA
- BOS
1 stop22h 48m
GOL
Deal found 4/15![GOL logo]()
$386
This GOL deal was found by Cheapflights users on 4/15. 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 GOL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/116:25 pm
POA
- BOS
2 stops18h 26m
GOL
Deal found 4/15![GOL logo]()
$501
This FlipMilhas deal was found by Cheapflights users on 4/14. 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 FlipMilhas is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/153:15 pm
POA
- BOS
2 stops21h 55m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$520
This Kiwi.com deal was found by Cheapflights users on 4/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/265:30 am
POA
- BOS
3 stops51h 30m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$565
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/168:05 pm
POA
- BOS
2 stops19h 39m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$638
This Copa Airlines deal was found by Cheapflights users on 4/13. 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.
Thu 5/141:20 am
POA
- BOS
1 stop22h 48m
Copa Airlines
Deal found 4/13![Copa Airlines logo]()
$644
This American Airlines deal was found by Cheapflights users on 4/14. 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.
Fri 5/152:00 pm
POA
- BOS
2 stops22h 04m
American Airlines
Deal found 4/14![American Airlines logo]()
$658
This Copa Airlines deal was found by Cheapflights users on 4/13. 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.
Sun 5/101:20 am
POA
- BOS
1 stop22h 48m
Copa Airlines
Deal found 4/13![Copa Airlines logo]()
$804
This oojo deal was found by Cheapflights users on 4/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/119:55 pm
POA
- BOS
1 stop34h 40m
LATAM Airlines
Deal found 4/11![LATAM Airlines logo]()
$815
Find 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 April 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $735 (American Airlines) |
One-way from | $407 (Kiwi.com) |
Popular in | April |
Cheapest in | June |
Average price | $964 |
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 April 15, 2026.
Use the filters below to find and compare flights from Porto Alegre to Boston that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Porto AlegreBoston
POA - BOS
POABOS
Porto Alegre Salgado Filho
Wed 7/29
1:15 am-11:10 pm
1 stop22h 55m
Boston Logan Intl
Sun 8/23
8:45 am-12:15 am
1 stop14h 30m
$790
Quickest round-trip
Porto AlegreBoston
POA - BOS
POABOS
Porto Alegre Salgado Filho
Tue 6/16
1:20 am-11:08 pm
1 stop22h 48m
Boston Logan Intl
Wed 8/12
8:45 am-12:15 am
1 stop14h 30m
$790
Porto AlegreBoston
POA - BOS
POABOS
Porto Alegre Salgado Filho
Mon 9/21
5:10 pm-10:17 am
2 stops18h 07m
Boston Logan Intl
Thu 9/24
6:00 am-2:20 pm
2 stops31h 20m
$947
Porto AlegreBoston
POA - BOS
POABOS
Porto Alegre Salgado Filho
Tue 9/15
6:25 pm-3:16 pm
2 stops21h 51m
Boston Logan Intl
Wed 10/28
1:01 pm-10:40 am
2 stops20h 39m
$960
Porto AlegreBoston
POA - BOS
POABOS
Porto Alegre Salgado Filho
Thu 6/4
1:20 am-11:08 pm
1 stop22h 48m
Boston Logan Intl
Sat 7/4
8:45 am-12:15 am
1 stop14h 30m
$1,088
Porto AlegreBoston
POA - BOS
POABOS
Porto Alegre Salgado Filho
Mon 5/18
1:20 am-11:08 pm
1 stop22h 48m
Boston Logan Intl
Wed 5/27
11:26 am-8:00 pm
2 stops55h 34m
$1,091
Cheapest one-way
Porto AlegreBoston
POA - BOS
POABOS
Porto Alegre Salgado Filho
Mon 6/15
1:20 am-11:08 pm
1 stop22h 48m
$386
Porto AlegreBoston
POA - BOS
POABOS
Porto Alegre Salgado Filho
Mon 5/11
2:00 pm-10:02 am
2 stops21h 02m
$501
Quickest one-way
Porto AlegreBoston
POA - BOS
POABOS
Porto Alegre Salgado Filho
Mon 5/11
6:25 pm-11:51 am
2 stops18h 26m
$501
Porto AlegreBoston
POA - BOS
POABOS
Porto Alegre Salgado Filho
Fri 5/15
3:15 pm-12:10 pm
2 stops21h 55m
$520
Showing 1-10 of 15 resultsSorted by cheapest first
- Most accurate provider: When it comes to deals on Porto Alegre-Boston flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Porto Alegre-Boston flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Porto Alegre-Boston flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Porto Alegre-Boston flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Porto Alegre-Boston flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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.
POA-BOS
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 April 10, 2026.
To ensure you get the cheapest price possible for a flight from Porto Alegre to Boston, you should look to book at least 42 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, November is the cheapest month in which you can book a flight from Porto Alegre to Boston (average of $287). Flying from Porto Alegre to Boston in January is currently the most expensive (average of $714). 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.
How much does it cost to fly round-trip from Porto Alegre to Boston?
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 April 15, 2026.
Get a feel of what it's like to fly with Copa 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.
Entertainment
6.8
Food
6.8
Crew
8.1
Boarding
7.8
Comfort
7.4
Overall
7.5
Reviews
1 / 20
4.0
OkayJuan Pablo,Sep 2025
PTY - VVI
Entertainment
6.8
Food
6.8
Crew
8.1
Boarding
7.8
Comfort
7.4
Overall
7.5
Reviews
1 / 20
4.0
OkayJuan Pablo,Sep 2025
PTY - VVI
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.
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Porto Alegre and Boston flights
Browse other Porto Alegre and Boston flight options. Last updated on April 15, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from Porto Alegre to Boston
Discover the top airline 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 April 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$431 | Average$901 | FlexibilityNo cancel fee | On-time70% |