Boston to Sintra Flights (BOS-LIS) from $271

Selected fares from Boston to Sintra

The cheapest prices found with in the last 7 days for return flights were $350 and $271 for one-way flights to Sintra for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Oct 20 - Fri, Jan 10

BOS

Logan Intl.

LIS

Humberto Delgado

$350 Roundtrip, found 4 days ago

$350

Roundtrip

found 4 days ago

Select Fly Play flight, departing Sun, Oct 20 from Logan Intl. to Humberto Delgado, returning Fri, Jan 10, priced at $350 found 4 days ago

Thu, Oct 31 - Sat, Nov 9

BOS

Logan Intl.

LIS

Humberto Delgado

$482 Roundtrip, found 22 hours ago

$482

Roundtrip

found 22 hours ago

Select Vueling Airlines flight, departing Thu, Oct 31 from Logan Intl. to Humberto Delgado, returning Sat, Nov 9, priced at $482 found 22 hours ago

Mon, Oct 7 - Tue, Oct 22

BOS

Logan Intl.

LIS

Humberto Delgado

$587 Roundtrip, found 22 hours ago

$587

Roundtrip

found 22 hours ago

Select SATA International-Azores Airlines S.A. flight, departing Mon, Oct 7 from Logan Intl. to Humberto Delgado, returning Tue, Oct 22, priced at $587 found 22 hours ago