Cheap flights from Boston to Sintra

View NZ$714 flight on Fri, 19 Sep. 2025Opens in a new window

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Cheap Flights from Boston (BOS) to Sintra (LIS)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Fri., 19 Sep. - Mon., 22 Sep.
BOS
Boston
LIS
Lisbon
NZ$1,100 Return, found 5 days ago
NZ$1,100
Return
found 5 days ago
Select Air Canada flight, departing Fri., 19 Sep. from Boston to Lisbon, returning Mon., 22 Sep., priced at NZ$1,100 found 5 days ago
Delta
Fri., 19 Sep. - Mon., 22 Sep.
BOS
Boston
LIS
Lisbon
NZ$1,130 Return, found 5 days ago
NZ$1,130
Return
found 5 days ago
Select Delta flight, departing Fri., 19 Sep. from Boston to Lisbon, returning Mon., 22 Sep., priced at NZ$1,130 found 5 days ago
Virgin Atlantic
Fri., 19 Sep. - Mon., 22 Sep.
BOS
Boston
LIS
Lisbon
NZ$1,130 Return, found 5 days ago
NZ$1,130
Return
found 5 days ago
Select Virgin Atlantic flight, departing Fri., 19 Sep. from Boston to Lisbon, returning Mon., 22 Sep., priced at NZ$1,130 found 5 days ago
Swiss International Air Lines
Fri., 19 Sep. - Mon., 22 Sep.
BOS
Boston
LIS
Lisbon
NZ$1,166 Return, found 5 days ago
NZ$1,166
Return
found 5 days ago
Select Swiss International Air Lines flight, departing Fri., 19 Sep. from Boston to Lisbon, returning Mon., 22 Sep., priced at NZ$1,166 found 5 days ago
Lufthansa
Fri., 19 Sep. - Mon., 22 Sep.
BOS
Boston
LIS
Lisbon
NZ$1,176 Return, found 5 days ago
NZ$1,176
Return
found 5 days ago
Select Lufthansa flight, departing Fri., 19 Sep. from Boston to Lisbon, returning Mon., 22 Sep., priced at NZ$1,176 found 5 days ago
KLM
Fri., 19 Sep. - Mon., 22 Sep.
BOS
Boston
LIS
Lisbon
NZ$1,216 Return, found 5 days ago
NZ$1,216
Return
found 5 days ago
Select KLM flight, departing Fri., 19 Sep. from Boston to Lisbon, returning Mon., 22 Sep., priced at NZ$1,216 found 5 days ago
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