$347+ 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 11/3. Fares are subject to change and may not be available on all flights or dates of travel.
POA — BOS
Sep 9 — Sep 161
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Porto Alegre to Boston with Cheapflights
1. Tell us where you want to go
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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
Cheapest
Best
Last-minute
One-way
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 August 10, 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 August 10, 2026.
This 123 Milhas deal was found by Cheapflights users on 8/7. 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.
Wed 10/2811:45 am -
2 stops20h 50m
Sat 11/77:55 am -
2 stops21h 20m
Deal found 8/7![Multiple Airlines logo]()
$669
This 123 Milhas deal was found by Cheapflights users on 8/5. 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.
Tue 10/206:45 pm -
2 stops37h 25m
Tue 10/278:55 am -
2 stops25h 05m
Deal found 8/5![Multiple Airlines logo]()
$671
This FlightHub deal was found by Cheapflights users on 8/7. 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.
Tue 10/2011:30 am -
2 stops44h 40m
Tue 10/278:55 am -
2 stops61h 55m
Deal found 8/7![Avianca logo]()
$700
This Copa Airlines deal was found by Cheapflights users on 8/10. 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.
Sun 9/201:20 am -
1 stop22h 42m
Mon 10/53:55 pm -
1 stop31h 25m
Deal found 8/10![Copa Airlines logo]()
$708
This Copa Airlines deal was found by Cheapflights users on 8/5. 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.
Mon 10/191:20 am -
1 stop14h 09m
Tue 10/273:55 pm -
1 stop31h 30m
Deal found 8/5![Copa Airlines logo]()
$728
This Expedia deal was found by Cheapflights users on 8/10. 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.
Thu 10/1511:30 am -
2 stops44h 20m
Sun 10/255:40 pm -
2 stops36h 00m
Deal found 8/10![Multiple Airlines logo]()
$791
This Orbitz deal was found by Cheapflights users on 8/9. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1911:30 am -
2 stops20h 40m
Fri 10/239:55 am -
1 stop32h 25m
Deal found 8/9![Multiple Airlines logo]()
$803
This MaxMilhas deal was found by Cheapflights users on 8/6. 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 10/155:50 pm -
1 stop14h 45m
Sun 10/2510:05 am -
1 stop22h 35m
Deal found 8/6![LATAM Airlines logo]()
$821
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 August 10, 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 August 10, 2026.
This 123 Milhas deal was found by Cheapflights users on 8/5. 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.
Tue 10/206:45 pm -
2 stops37h 25m
Tue 10/278:55 am -
2 stops25h 05m
Deal found 8/5![Multiple Airlines logo]()
$671
This Copa Airlines deal was found by Cheapflights users on 8/10. 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.
Wed 10/141:20 am -
1 stop22h 42m
Sun 10/253:55 pm -
1 stop31h 30m
Deal found 8/10![Copa Airlines logo]()
$708
This MaxMilhas deal was found by Cheapflights users on 8/5. 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.
Tue 10/205:50 pm -
1 stop14h 45m
Tue 10/271:35 pm -
2 stops26h 15m
Deal found 8/5![LATAM Airlines logo]()
$822
This Delta deal was found by Cheapflights users on 8/7. 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 9/246:40 am -
1 stop25h 55m
Sun 10/259:55 am -
1 stop23h 05m
Deal found 8/7![Delta logo]()
$905
This Copa Airlines deal was found by Cheapflights users on 8/9. 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 9/201:20 am -
1 stop22h 42m
Mon 10/58:47 am -
1 stop14h 33m
Deal found 8/9![Copa Airlines logo]()
$708
This Expedia deal was found by Cheapflights users on 8/10. 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.
Thu 10/152:05 pm -
2 stops41h 45m
Sun 10/2510:05 am -
1 stop34h 25m
Deal found 8/10![Multiple Airlines logo]()
$793
This Copa Airlines deal was found by Cheapflights users on 8/5. 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.
Mon 10/191:20 am -
1 stop14h 09m
Tue 10/273:55 pm -
1 stop31h 30m
Deal found 8/5![Copa Airlines logo]()
$728
This Delta deal was found by Cheapflights users on 8/7. 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.
Sat 9/196:40 am -
1 stop25h 55m
Sun 10/259:55 am -
1 stop25h 20m
Deal found 8/7![Delta logo]()
$990
This Copa Airlines deal was found by Cheapflights users on 8/10. 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.
Thu 10/221:20 am -
1 stop22h 42m
Sun 11/17:41 am -
1 stop14h 44m
Deal found 8/10![Copa Airlines logo]()
$844
This Copa Airlines deal was found by Cheapflights users on 8/7. 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 9/201:20 am -
1 stop22h 42m
Sun 10/253:55 pm -
1 stop31h 30m
Deal found 8/7![Copa Airlines logo]()
$844
This Copa Airlines deal was found by Cheapflights users on 8/5. 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.
Mon 10/261:25 am -
1 stop22h 37m
Fri 11/67:41 am -
1 stop14h 44m
Deal found 8/5![Copa Airlines logo]()
$913
This Copa Airlines deal was found by Cheapflights users on 8/5. 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 10/271:25 am -
1 stop14h 07m
Sat 11/77:41 am -
1 stop14h 44m
Deal found 8/5![Copa Airlines logo]()
$953
Last-minute flights from Porto Alegre to BostonDiscover last-minute flight deals from Porto Alegre to Boston. Data last updated August 10, 2026 and is based on user searches.
Discover last-minute flight deals from Porto Alegre to Boston. Data last updated August 10, 2026 and is based on user searches.
This Copa Airlines deal was found by Cheapflights users on 8/10. 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.
Sun 9/201:20 am -
1 stop22h 42m
Mon 10/53:55 pm -
1 stop31h 25m
Deal found 8/10![Copa Airlines logo]()
$708
This Copa Airlines deal was found by Cheapflights users on 8/7. 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 9/201:20 am -
1 stop22h 42m
Sun 10/253:55 pm -
1 stop31h 30m
Deal found 8/7![Copa Airlines logo]()
$844
This LATAM Airlines deal was found by Cheapflights users on 8/7. 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.
Sun 9/209:50 pm -
2 stops26h 40m
Sun 10/253:33 pm -
2 stops24h 17m
Deal found 8/7![LATAM Airlines logo]()
$915
This Expedia deal was found by Cheapflights users on 8/7. 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.
Mon 9/212:05 pm -
2 stops18h 05m
Sun 10/2510:05 am -
1 stop32h 10m
Deal found 8/7![Multiple Airlines logo]()
$863
This oojo deal was found by Cheapflights users on 8/9. 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 9/2110:00 pm -
1 stop34h 35m
Mon 10/53:05 pm -
2 stops26h 10m
Deal found 8/9![LATAM Airlines logo]()
$921
This Delta deal was found by Cheapflights users on 8/7. 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 9/226:40 am -
1 stop25h 55m
Sun 10/259:55 am -
1 stop23h 05m
Deal found 8/7![Delta logo]()
$905
This Delta deal was found by Cheapflights users on 8/7. 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 9/247:05 pm -
2 stops21h 10m
Sun 10/259:55 am -
1 stop25h 20m
Deal found 8/7![Delta logo]()
$907
This LATAM Airlines deal was found by Cheapflights users on 8/7. 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 9/247:20 am -
2 stops18h 57m
Sun 10/253:33 pm -
2 stops24h 17m
Deal found 8/7![LATAM Airlines logo]()
$912
This Copa Airlines deal was found by Cheapflights users on 8/5. 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.
Mon 9/281:20 am -
1 stop22h 42m
Tue 10/63:55 pm -
1 stop31h 25m
Deal found 8/5![Copa Airlines logo]()
$913
This American Airlines deal was found by Cheapflights users on 8/5. 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 9/292:05 pm -
2 stops22h 52m
Tue 10/62:13 pm -
2 stops24h 22m
Deal found 8/5![American Airlines logo]()
$922
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 August 10, 2026.
Search for one-way flight options from Porto Alegre to Boston. Find affordable one-way fares based on user searches. Data last updated August 10, 2026.
This 123 Milhas deal was found by Cheapflights users on 8/8. 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.
Tue 11/39:15 pm -
2 stops35h 20m
Deal found 8/8![Multiple Airlines logo]()
$347
This 123 Milhas deal was found by Cheapflights users on 8/8. 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.
Thu 9/176:45 pm -
2 stops37h 05m
Deal found 8/8![Multiple Airlines logo]()
$348
This 123 Milhas deal was found by Cheapflights users on 8/9. 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.
Thu 10/156:45 pm -
2 stops37h 05m
Deal found 8/9![Multiple Airlines logo]()
$349
This Copa Airlines deal was found by Cheapflights users on 8/8. 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 9/161:20 am -
1 stop22h 42m
Deal found 8/8![Copa Airlines logo]()
$505
This 123 Milhas deal was found by Cheapflights users on 8/5. 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.
Tue 12/229:15 pm -
2 stops35h 20m
Deal found 8/5![Multiple Airlines logo]()
$510
This Avianca deal was found by Cheapflights users on 8/8. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/161:40 pm -
2 stops18h 30m
Deal found 8/8![Avianca logo]()
$542
This GOL deal was found by Cheapflights users on 8/9. 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.
Tue 9/82:05 pm -
2 stops34h 04m
Deal found 8/9![GOL logo]()
$552
This American Airlines deal was found by Cheapflights users on 8/8. 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 9/182:05 pm -
2 stops21h 09m
Deal found 8/8![American Airlines logo]()
$597
This Copa Airlines deal was found by Cheapflights users on 8/5. 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.
Mon 12/211:35 am -
1 stop22h 27m
Deal found 8/5![Copa Airlines logo]()
$679
This GOL deal was found by Cheapflights users on 8/7. 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.
Thu 1/147:35 pm -
2 stops21h 14m
Deal found 8/7![GOL logo]()
$684
This GOL deal was found by Cheapflights users on 8/6. 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.
Sun 12/277:55 am -
2 stops43h 04m
Deal found 8/6![GOL logo]()
$719
This Copa Airlines deal was found by Cheapflights users on 8/6. 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 12/271:35 am -
1 stop13h 48m
Deal found 8/6![Copa Airlines logo]()
$764
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 August 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $669 (123 Milhas) |
One-way from | $347 (123 Milhas) |
Popular in | August |
Cheapest in | July |
Average price | $1,039 |
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 August 10, 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 Porto Alegre Salgado Filho - BOS Boston Logan Intl
POABOS
Porto Alegre Salgado Filho
Tue 10/20
6:45 pm-7:10 am
2 stops37h 25m
Boston Logan Intl
Tue 10/27
8:55 am-11:00 am
2 stops25h 05m
$671
Porto AlegreBoston
POA Porto Alegre Salgado Filho - BOS Boston Logan Intl
POABOS
Porto Alegre Salgado Filho
Wed 10/14
1:20 am-11:02 pm
1 stop22h 42m
Boston Logan Intl
Sun 10/25
3:55 pm-12:25 am
1 stop31h 30m
$708
Porto AlegreBoston
POA Porto Alegre Salgado Filho - BOS Boston Logan Intl
POABOS
Porto Alegre Salgado Filho
Sun 9/20
1:20 am-11:02 pm
1 stop22h 42m
Boston Logan Intl
Mon 10/5
8:47 am-12:20 am
1 stop14h 33m
$708
Porto AlegreBoston
POA Porto Alegre Salgado Filho - BOS Boston Logan Intl
POABOS
Porto Alegre Salgado Filho
Mon 10/19
1:20 am-2:29 pm
1 stop14h 09m
Boston Logan Intl
Tue 10/27
3:55 pm-12:25 am
1 stop31h 30m
$728
Porto AlegreBoston
POA Porto Alegre Salgado Filho - BOS Boston Logan Intl
POABOS
Porto Alegre Salgado Filho
Thu 10/15
2:05 pm-6:50 am
2 stops41h 45m
Boston Logan Intl
Sun 10/25
10:05 am-9:30 pm
1 stop34h 25m
$793
Porto AlegreBoston
POA Porto Alegre Salgado Filho - BOS Boston Logan Intl
POABOS
Porto Alegre Salgado Filho
Tue 10/20
5:50 pm-7:35 am
1 stop14h 45m
Boston Logan Intl
Tue 10/27
1:35 pm-4:50 pm
2 stops26h 15m
$822
Porto AlegreBoston
POA Porto Alegre Salgado Filho - BOS Boston Logan Intl
POABOS
Porto Alegre Salgado Filho
Thu 10/22
1:20 am-11:02 pm
1 stop22h 42m
Boston Logan Intl
Sun 11/1
7:41 am-12:25 am
1 stop14h 44m
$844
Porto AlegreBoston
POA Porto Alegre Salgado Filho - BOS Boston Logan Intl
POABOS
Porto Alegre Salgado Filho
Sun 9/20
1:20 am-11:02 pm
1 stop22h 42m
Boston Logan Intl
Sun 10/25
3:55 pm-12:25 am
1 stop31h 30m
$844
Porto AlegreBoston
POA Porto Alegre Salgado Filho - BOS Boston Logan Intl
POABOS
Porto Alegre Salgado Filho
Thu 9/24
6:40 am-7:35 am
1 stop25h 55m
Boston Logan Intl
Sun 10/25
9:55 am-10:00 am
1 stop23h 05m
$905
Porto AlegreBoston
POA Porto Alegre Salgado Filho - BOS Boston Logan Intl
POABOS
Porto Alegre Salgado Filho
Mon 10/26
1:25 am-11:02 pm
1 stop22h 37m
Boston Logan Intl
Fri 11/6
7:41 am-12:25 am
1 stop14h 44m
$913
Showing 1-10 of 22 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
What is the cheapest month to book a flight from Porto Alegre to Boston?
Currently, July is the cheapest month in which you can book a flight from Porto Alegre to Boston (average of $584). Flying from Porto Alegre to Boston in August is currently the most expensive (average of $1,039). 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?
Airfare is below average for this route at the moment.
Porto Alegre to Boston flights typically cost between $810 and $1,137 in October.The cheapest round-trip price found within the last 5 days was $669 on Multiple Airlines (Oct 28-Nov 7).
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 August 10, 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.
Crew
8.1
Entertainment
6.8
Boarding
7.8
Overall
7.6
Comfort
7.4
Food
6.9
Reviews
1 / 20
4.0
OkayPaul,Jun 2025
PTY - MIA
Crew
8.1
Entertainment
6.8
Boarding
7.8
Overall
7.6
Comfort
7.4
Food
6.9
Reviews
1 / 20
4.0
OkayPaul,Jun 2025
PTY - MIA
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.
Traveling to a place near Boston?
Book flights to Boston if you plan to visit one of these locationsWaltham
Randolph
Cambridge
Concord
Brockton
Seekonk
Cranston
Dedham
Warwick
Peabody
Auburn
Chelsea
York Beach
Londonderry
Swansea
Revere
Fitchburg
North Falmouth
Braintree
Sandwich
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.
Boston flight routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Other flights to Boston
Explore flights to Boston departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 10, 2026.
Complete your trip
Complete your trip to Boston by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Porto Alegre to Boston by cabin class
Find flights from Porto Alegre to Boston, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Porto Alegre and Boston flights
Browse other Porto Alegre and Boston flight options. Last updated on August 10, 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 August 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$580 | Average$961 | FlexibilityNo cancel fee | On-time70% |