Earn point on your loyalty program!arrow arc left

Cheap flights from Boston (BOS) to Porto Alegre (POA)

Know your dates, get live prices in seconds
airplane logo

pin logo

calendar
Departure
calendar backward
Return
airplane logo
1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
Save up to 31%
Book Flight + Hotel at the same time

How to find the cheapest flight from Boston (BOS) to Porto Alegre (POA)

How to find the cheapest flight from Boston (BOS) to Porto Alegre (POA)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Boston (BOS) to Porto Alegre (POA)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Boston (BOS) to Porto Alegre (POA)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.

Cheap flights from Boston to Porto Alegre in April , May 2026

29 Apr - 18 May $ 994.00
BOS
Boston
Copa Airlines
1 STOPS
POA
Porto Alegre
POA
Porto Alegre
Copa Airlines
1 STOPS
BOS
Boston
Pick dates
24 Apr - 23 May $ 1,029.00
BOS
Boston
LATAM Airlines
1 STOPS
POA
Porto Alegre
POA
Porto Alegre
LATAM Airlines
1 STOPS
BOS
Boston
Pick dates
15 Apr - 06 May $ 1,291.00
BOS
Boston
Copa Airlines
1 STOPS
POA
Porto Alegre
POA
Porto Alegre
Copa Airlines
1 STOPS
BOS
Boston
Pick dates

Last minute flights from Boston to Porto Alegre

29 Apr - 01 May $ 1,038.00
BOS
Boston
Copa Airlines
2 STOPS
POA
Porto Alegre
POA
Porto Alegre
Copa Airlines
2 STOPS
BOS
Boston
Pick dates
29 Apr - 01 May $ 1,114.00
BOS
Boston
Arajet
1 STOPS
POA
Porto Alegre
POA
Porto Alegre
Arajet
3 STOPS
BOS
Boston
Pick dates
15 Apr - 30 Apr $ 1,969.00
BOS
Boston
Azul
1 STOPS
POA
Porto Alegre
POA
Porto Alegre
Azul
2 STOPS
BOS
Boston
Pick dates

One-way flights to Porto Alegre from Boston

5:25 PM - 12:55 PM
United Airlines
2 Stops
20h 10m
BOS - POA
$ 383
Kiwi
Pick dates
5:20 PM - 8:55 AM
United Airlines
2 Stops
16h 15m
BOS - POA
$ 388
Kiwi
Pick dates
4:16 PM - 8:55 AM
United Airlines
2 Stops
17h 19m
BOS - POA
$ 388
Kiwi
Pick dates

How to find the cheapest flight from Boston (BOS) to Porto Alegre (POA)

Related info for your journey
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Boston (BOS) to Porto Alegre (POA)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Boston (BOS) to Porto Alegre (POA)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.