$365+ Cheap flights from Porto Alegre (POA) to Boston (BOS)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
POA — BOS
Dec 12 — Dec 191
Round-trip
1 adult, Economy
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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
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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 November 12, 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 November 12, 2026.
This LATAM Airlines deal was found by Cheapflights users on 11/9. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/266:00 pm -
1 stop14h 45m
Tue 12/82:54 pm -
2 stops23h 56m
Deal found 11/9![LATAM Airlines logo]()
$904
This Booking.com deal was found by Cheapflights users on 11/8. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/216:00 pm -
1 stop14h 45m
Mon 11/309:05 am -
1 stop21h 25m
Deal found 11/8![LATAM Airlines logo]()
$905
This LATAM Airlines deal was found by Cheapflights users on 11/8. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/194:10 pm -
1 stop16h 35m
Fri 12/49:05 am -
1 stop22h 55m
Deal found 11/8![LATAM Airlines logo]()
$906
This Delta deal was found by Cheapflights users on 11/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/216:00 pm -
1 stop14h 45m
Mon 11/309:05 am -
1 stop28h 15m
Deal found 11/10![Delta logo]()
$907
This LATAM Airlines deal was found by Cheapflights users on 11/9. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/247:30 am -
2 stops19h 38m
Tue 12/81:50 pm -
2 stops25h 00m
Deal found 11/9![LATAM Airlines logo]()
$912
This LATAM Airlines deal was found by Cheapflights users on 11/9. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/259:20 am -
2 stops27h 50m
Tue 12/84:10 pm -
2 stops22h 40m
Deal found 11/9![LATAM Airlines logo]()
$914
This Copa Airlines deal was found by Cheapflights users on 11/8. 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.
Sun 11/221:30 am -
1 stop22h 31m
Tue 12/12:43 pm -
1 stop31h 42m
Deal found 11/8![Copa Airlines logo]()
$927
This 123 Milhas deal was found by Cheapflights users on 11/8. 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.
Sat 11/216:00 pm -
1 stop14h 45m
Sat 11/2810:10 am -
2 stops28h 40m
Deal found 11/8![LATAM Airlines logo]()
$932
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 November 12, 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 November 12, 2026.
This Copa Airlines deal was found by Cheapflights users on 11/9. 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.
Wed 3/179:10 am -
1 stop14h 54m
Sun 3/213:46 pm -
1 stop31h 39m
Deal found 11/9![Copa Airlines logo]()
$855
This Delta deal was found by Cheapflights users on 11/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/266:00 pm -
2 stops22h 26m
Fri 3/57:10 am -
2 stops21h 30m
Deal found 11/9![Delta logo]()
$905
This GOL deal was found by Cheapflights users on 11/11. 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 GOL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/19:40 pm -
2 stops38h 40m
Tue 12/82:00 pm -
2 stops19h 50m
Deal found 11/11![GOL logo]()
$1,007
This United Airlines deal was found by Cheapflights users on 11/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/15:10 pm -
2 stops18h 11m
Tue 1/2612:26 pm -
3 stops26h 04m
Deal found 11/11![United Airlines logo]()
$1,235
This Copa Airlines deal was found by Cheapflights users on 11/8. 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.
Sun 11/221:30 am -
1 stop22h 31m
Tue 12/12:43 pm -
1 stop31h 42m
Deal found 11/8![Copa Airlines logo]()
$927
This GOL deal was found by Cheapflights users on 11/10. 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 GOL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/19:40 pm -
2 stops34h 55m
Mon 12/72:45 pm -
2 stops19h 05m
Deal found 11/10![GOL logo]()
$1,063
This Copa Airlines deal was found by Cheapflights users on 11/9. 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.
Fri 2/269:00 am -
1 stop14h 59m
Fri 3/56:30 am -
1 stop15h 55m
Deal found 11/9![Copa Airlines logo]()
$972
This Copa Airlines deal was found by Cheapflights users on 11/9. 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.
Thu 12/31:35 am -
1 stop22h 34m
Fri 12/117:34 am -
1 stop14h 51m
Deal found 11/9![Copa Airlines logo]()
$1,080
This Copa Airlines deal was found by Cheapflights users on 11/10. 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.
Fri 12/41:35 am -
1 stop22h 34m
Fri 12/117:34 am -
1 stop14h 51m
Deal found 11/10![Copa Airlines logo]()
$1,080
This Copa Airlines deal was found by Cheapflights users on 11/8. 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.
Mon 1/259:10 am -
1 stop30h 12m
Mon 2/17:30 am -
1 stop15h 05m
Deal found 11/8![Copa Airlines logo]()
$1,090
This Copa Airlines deal was found by Cheapflights users on 11/10. 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.
Mon 11/301:35 am -
1 stop13h 48m
Mon 12/72:43 pm -
1 stop31h 42m
Deal found 11/10![Copa Airlines logo]()
$1,221
Last-minute flights from Porto Alegre to BostonDiscover last-minute flight deals from Porto Alegre to Boston. Data last updated November 12, 2026 and is based on user searches.
Discover last-minute flight deals from Porto Alegre to Boston. Data last updated November 12, 2026 and is based on user searches.
This LATAM Airlines deal was found by Cheapflights users on 11/8. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/194:10 pm -
1 stop16h 35m
Fri 12/49:05 am -
1 stop22h 55m
Deal found 11/8![LATAM Airlines logo]()
$906
This Booking.com deal was found by Cheapflights users on 11/8. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/216:00 pm -
1 stop14h 45m
Mon 11/309:05 am -
1 stop21h 25m
Deal found 11/8![LATAM Airlines logo]()
$905
This Delta deal was found by Cheapflights users on 11/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/216:00 pm -
1 stop14h 45m
Mon 11/309:05 am -
1 stop28h 15m
Deal found 11/10![Delta logo]()
$907
This 123 Milhas deal was found by Cheapflights users on 11/8. 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.
Sat 11/216:00 pm -
1 stop14h 45m
Sat 11/2810:10 am -
2 stops28h 40m
Deal found 11/8![LATAM Airlines logo]()
$932
This Copa Airlines deal was found by Cheapflights users on 11/8. 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.
Sun 11/221:30 am -
1 stop22h 31m
Tue 12/12:43 pm -
1 stop31h 42m
Deal found 11/8![Copa Airlines logo]()
$927
This LATAM Airlines deal was found by Cheapflights users on 11/9. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/247:30 am -
2 stops19h 38m
Tue 12/81:50 pm -
2 stops25h 00m
Deal found 11/9![LATAM Airlines logo]()
$912
This LATAM Airlines deal was found by Cheapflights users on 11/9. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/259:20 am -
2 stops27h 50m
Tue 12/84:10 pm -
2 stops22h 40m
Deal found 11/9![LATAM Airlines logo]()
$914
This LATAM Airlines deal was found by Cheapflights users on 11/9. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/266:00 pm -
1 stop14h 45m
Tue 12/82:54 pm -
2 stops23h 56m
Deal found 11/9![LATAM Airlines logo]()
$904
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 November 12, 2026.
Search for one-way flight options from Porto Alegre to Boston. Find affordable one-way fares based on user searches. Data last updated November 12, 2026.
This VIAZA deal was found by Cheapflights users on 11/9. 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 VIAZA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/253:15 pm -
2 stops23h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![GOL logo]()
$365
This VIAZA deal was found by Cheapflights users on 11/9. 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 VIAZA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/259:00 am -
1 stop14h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Copa Airlines logo]()
$394
This VIAZA deal was found by Cheapflights users on 11/9. 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 VIAZA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/243:30 am -
3 stops23h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![LATAM Airlines logo]()
$871
This Booking.com deal was found by Cheapflights users on 11/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/258:50 pm -
3 stops24h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/10![Multiple Airlines logo]()
$1,030
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 November 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $855 (Copa Airlines) |
One-way from | $365 (VIAZA) |
Popular in | August |
Cheapest in | July |
Average price | $908 |
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 7,457,451 searches. Data last updated November 12, 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
Quickest round-trip
Porto AlegreBoston
POA Porto Alegre Salgado Filho - BOS Boston Logan Intl
POABOS
Porto Alegre Salgado Filho
Thu 2/25
9:00 am-9:59 pm
1 stop14h 59m
Boston Logan Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$394
Porto AlegreBoston
POA Porto Alegre Salgado Filho - BOS Boston Logan Intl
POABOS
Porto Alegre Salgado Filho
Thu 2/25
7:40 pm-6:35 am
2 stops36h 55m
Boston Logan Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$535
Porto AlegreBoston
POA Porto Alegre Salgado Filho - BOS Boston Logan Intl
POABOS
Porto Alegre Salgado Filho
Wed 3/17
9:10 am-11:04 pm
1 stop14h 54m
Boston Logan Intl
Sun 3/21
3:46 pm-12:25 am
1 stop31h 39m
$855
Porto AlegreBoston
POA Porto Alegre Salgado Filho - BOS Boston Logan Intl
POABOS
Porto Alegre Salgado Filho
Wed 2/24
3:30 am-1:14 am
3 stops23h 44m
Boston Logan Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$871
Porto AlegreBoston
POA Porto Alegre Salgado Filho - BOS Boston Logan Intl
POABOS
Porto Alegre Salgado Filho
Fri 2/26
6:00 pm-2:26 pm
2 stops22h 26m
Boston Logan Intl
Fri 3/5
7:10 am-6:40 am
2 stops21h 30m
$905
Porto AlegreBoston
POA Porto Alegre Salgado Filho - BOS Boston Logan Intl
POABOS
Porto Alegre Salgado Filho
Sun 11/22
1:30 am-10:01 pm
1 stop22h 31m
Boston Logan Intl
Tue 12/1
2:43 pm-12:25 am
1 stop31h 42m
$927
Porto AlegreBoston
POA Porto Alegre Salgado Filho - BOS Boston Logan Intl
POABOS
Porto Alegre Salgado Filho
Fri 2/26
9:00 am-9:59 pm
1 stop14h 59m
Boston Logan Intl
Fri 3/5
6:30 am-12:25 am
1 stop15h 55m
$972
Porto AlegreBoston
POA Porto Alegre Salgado Filho - BOS Boston Logan Intl
POABOS
Porto Alegre Salgado Filho
Tue 12/1
9:40 pm-10:20 am
2 stops38h 40m
Boston Logan Intl
Tue 12/8
2:00 pm-11:50 am
2 stops19h 50m
$1,007
Porto AlegreBoston
POA Porto Alegre Salgado Filho - BOS Boston Logan Intl
POABOS
Porto Alegre Salgado Filho
Tue 12/1
9:40 pm-6:35 am
2 stops34h 55m
Boston Logan Intl
Mon 12/7
2:45 pm-11:50 am
2 stops19h 05m
$1,063
Porto AlegreBoston
POA Porto Alegre Salgado Filho - BOS Boston Logan Intl
POABOS
Porto Alegre Salgado Filho
Thu 12/3
1:35 am-10:09 pm
1 stop22h 34m
Boston Logan Intl
Fri 12/11
7:34 am-12:25 am
1 stop14h 51m
$1,080
Showing 1-10 of 14 resultsSorted by cheapest first
Compare providers for flights from Porto Alegre to Boston
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Porto Alegre to Boston in November.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- 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 $624). Flying from Porto Alegre to Boston in August is currently the most expensive (average of $1,111). 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 typical for this route at the moment.
Porto Alegre to Boston flights typically cost between $821 and $1,103 in March.The cheapest round-trip price found within the last 5 days was $830 on Copa Airlines (Mar 1-May 11).
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 November 12, 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.
Comfort
7.4
Entertainment
6.9
Boarding
7.8
Crew
8.1
Food
7.0
Overall
7.6
Reviews
1 / 20
4.0
OkayPaul,Jun 2025
PTY - MIA
Comfort
7.4
Entertainment
6.9
Boarding
7.8
Crew
8.1
Food
7.0
Overall
7.6
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?
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Porto Alegre and Boston flights
Browse other Porto Alegre and Boston flight options. Last updated on November 12, 2026.
Popular flight searches
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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 7,457,451 searches. Data last updated November 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$814 | Average$1,282 | FlexibilityNo cancel fee | On-time70% |