Boston to Cascais Flights (BOS-LIS) from $263

Wander Wisely with exceptional service, 24/7 support

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

Selected fares from Boston to Cascais

The cheapest prices found with in the last 7 days for return flights were $355 and $263 for one-way flights to Cascais for the period specified. Prices and availability are subject to change. Additional terms apply.

Fly Play
Thu, Nov 28 - Fri, Dec 6
BOS
Logan Intl.
LIS
Humberto Delgado
$355 Roundtrip, found 1 day ago
$355
Roundtrip
found 1 day ago
Select Fly Play flight, departing Thu, Nov 28 from Logan Intl. to Humberto Delgado, returning Fri, Dec 6, priced at $355 found 1 day ago
TAP Portugal
Thu, Dec 5 - Tue, Dec 10
BOS
Logan Intl.
LIS
Humberto Delgado
$500 Roundtrip, found 1 hour ago
$500
Roundtrip
found 1 hour ago
Select TAP Portugal flight, departing Thu, Dec 5 from Logan Intl. to Humberto Delgado, returning Tue, Dec 10, priced at $500 found 1 hour ago
Vueling Airlines
Tue, Jan 7 - Tue, Jan 14
BOS
Logan Intl.
LIS
Humberto Delgado
$549 Roundtrip, just found
$549
Roundtrip
just found
Select Vueling Airlines flight, departing Tue, Jan 7 from Logan Intl. to Humberto Delgado, returning Tue, Jan 14, priced at $549 just found

Save more with Cascais Flight + Hotel packages

Price found within the past 48 hours. Click for updated prices.
Eurostars Das Letras

Eurostars Das Letras

5 out of 5
per person
Jul 2 - Jul 8
Roundtrip flight included
Boston (BOS) to Lisbon (LIS)
Lisboa Carmo Hotel

Lisboa Carmo Hotel

4 out of 5
per person
Jul 2 - Jul 8
Roundtrip flight included
Boston (BOS) to Lisbon (LIS)
Eurostars Lisboa Baixa

Eurostars Lisboa Baixa

4 out of 5
per person
Jul 2 - Jul 8
Roundtrip flight included
Boston (BOS) to Lisbon (LIS)
TURIM Terreiro do Paço Hotel

TURIM Terreiro do Paço Hotel

4 out of 5
per person
Jul 2 - Jul 8
Roundtrip flight included
Boston (BOS) to Lisbon (LIS)
As Janelas Verdes Inn, a Lisbon Heritage Collection

As Janelas Verdes Inn, a Lisbon Heritage Collection

4 out of 5
per person
Jul 2 - Jul 8
Roundtrip flight included
Boston (BOS) to Lisbon (LIS)
Solar Do Castelo, a Lisbon Heritage Collection

Solar Do Castelo, a Lisbon Heritage Collection

4 out of 5
per person
Jul 2 - Jul 8
Roundtrip flight included
Boston (BOS) to Lisbon (LIS)
Don't see what you're looking for?
See all available trips from Boston to Cascais
View all trips