Flights from Boston to Seixal

Cheapest flights from Boston

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Sep 27 - Sun, Oct 5

BOS

Logan Intl.

LIS

Humberto Delgado

$467 Roundtrip, found 1 day ago

$467

Roundtrip

found 1 day ago

Select Icelandair flight, departing Sat, Sep 27 from Logan Intl. to Humberto Delgado, returning Sun, Oct 5, priced at $467 found 1 day ago

Sun, Sep 28 - Mon, Sep 29

BOS

Logan Intl.

LIS

Humberto Delgado

$476 Roundtrip, found 1 day ago

$476

Roundtrip

found 1 day ago

Select British Airways flight, departing Sun, Sep 28 from Logan Intl. to Humberto Delgado, returning Mon, Sep 29, priced at $476 found 1 day ago

Wed, Sep 24 - Sun, Oct 5

BOS

Logan Intl.

LIS

Humberto Delgado

$478 Roundtrip, found 1 day ago

$478

Roundtrip

found 1 day ago

Select Icelandair flight, departing Wed, Sep 24 from Logan Intl. to Humberto Delgado, returning Sun, Oct 5, priced at $478 found 1 day ago

Tue, Sep 23 - Tue, Sep 30

BOS

Logan Intl.

LIS

Humberto Delgado

$480 Roundtrip, found 1 day ago

$480

Roundtrip

found 1 day ago

Select United flight, departing Tue, Sep 23 from Logan Intl. to Humberto Delgado, returning Tue, Sep 30, priced at $480 found 1 day ago

Tue, Sep 23 - Mon, Sep 29

BOS

Logan Intl.

LIS

Humberto Delgado

$483 Roundtrip, found 1 day ago

$483

Roundtrip

found 1 day ago

Select United flight, departing Tue, Sep 23 from Logan Intl. to Humberto Delgado, returning Mon, Sep 29, priced at $483 found 1 day ago

Thu, Sep 25 - Thu, Oct 2

BOS

Logan Intl.

LIS

Humberto Delgado

$500 Roundtrip, found 1 day ago

$500

Roundtrip

found 1 day ago

Select Swiss International Air Lines flight, departing Thu, Sep 25 from Logan Intl. to Humberto Delgado, returning Thu, Oct 2, priced at $500 found 1 day ago

Thu, Sep 25 - Thu, Oct 2

BOS

Logan Intl.

LIS

Humberto Delgado

$513 Roundtrip, found 1 day ago

$513

Roundtrip

found 1 day ago

Select Lufthansa flight, departing Thu, Sep 25 from Logan Intl. to Humberto Delgado, returning Thu, Oct 2, priced at $513 found 1 day ago

Sat, Feb 28 - Tue, Mar 31

BOS

Logan Intl.

LIS

Humberto Delgado

$559 Roundtrip, found 3 days ago

$559

Roundtrip

found 3 days ago

Select American Airlines flight, departing Sat, Feb 28 from Logan Intl. to Humberto Delgado, returning Tue, Mar 31, priced at $559 found 3 days ago

Sat, Feb 28 - Tue, Mar 31

BOS

Logan Intl.

LIS

Humberto Delgado

$583 Roundtrip, found 3 days ago

$583

Roundtrip

found 3 days ago

Select Delta flight, departing Sat, Feb 28 from Logan Intl. to Humberto Delgado, returning Tue, Mar 31, priced at $583 found 3 days ago

Sun, Sep 28 - Sun, Oct 5

BOS

Logan Intl.

LIS

Humberto Delgado

$633 Roundtrip, found 1 day ago

$633

Roundtrip

found 1 day ago

Select TAP Portugal flight, departing Sun, Sep 28 from Logan Intl. to Humberto Delgado, returning Sun, Oct 5, priced at $633 found 1 day ago

Sat, Feb 28 - Tue, Mar 31

BOS

Logan Intl.

LIS

Humberto Delgado

$665 Roundtrip, found 3 days ago

$665

Roundtrip

found 3 days ago

Select Air France flight, departing Sat, Feb 28 from Logan Intl. to Humberto Delgado, returning Tue, Mar 31, priced at $665 found 3 days ago

Thu, Sep 25 - Thu, Oct 2

BOS

Logan Intl.

LIS

Humberto Delgado

$719 Roundtrip, found 1 day ago

$719

Roundtrip

found 1 day ago

Select Iberia flight, departing Thu, Sep 25 from Logan Intl. to Humberto Delgado, returning Thu, Oct 2, priced at $719 found 1 day ago

Thu, Sep 25 - Thu, Oct 2

BOS

Logan Intl.

LIS

Humberto Delgado

$763 Roundtrip, found 1 day ago

$763

Roundtrip

found 1 day ago

Select Air Canada flight, departing Thu, Sep 25 from Logan Intl. to Humberto Delgado, returning Thu, Oct 2, priced at $763 found 1 day ago

Fri, Sep 26 - Sun, Oct 12

BOS

Logan Intl.

LIS

Humberto Delgado

$811 Roundtrip, found 3 days ago

$811

Roundtrip

found 3 days ago

Select Finnair flight, departing Fri, Sep 26 from Logan Intl. to Humberto Delgado, returning Sun, Oct 12, priced at $811 found 3 days ago

Fri, Sep 26 - Sun, Oct 12

BOS

Logan Intl.

LIS

Humberto Delgado

$859 Roundtrip, found 3 days ago

$859

Roundtrip

found 3 days ago

Select Brussels Airlines flight, departing Fri, Sep 26 from Logan Intl. to Humberto Delgado, returning Sun, Oct 12, priced at $859 found 3 days ago

Thu, Sep 25 - Thu, Oct 2

BOS

Logan Intl.

LIS

Humberto Delgado

$888 Roundtrip, found 1 day ago

$888

Roundtrip

found 1 day ago

Select KLM flight, departing Thu, Sep 25 from Logan Intl. to Humberto Delgado, returning Thu, Oct 2, priced at $888 found 1 day ago

Thu, Sep 25 - Thu, Oct 2

BOS

Logan Intl.

LIS

Humberto Delgado

$898 Roundtrip, found 1 day ago

$898

Roundtrip

found 1 day ago

Select SATA International-Azores Airlines S.A. flight, departing Thu, Sep 25 from Logan Intl. to Humberto Delgado, returning Thu, Oct 2, priced at $898 found 1 day ago

Thu, Sep 25 - Thu, Oct 2

BOS

Logan Intl.

LIS

Humberto Delgado

$906 Roundtrip, found 1 day ago

$906

Roundtrip

found 1 day ago

Select Aer Lingus flight, departing Thu, Sep 25 from Logan Intl. to Humberto Delgado, returning Thu, Oct 2, priced at $906 found 1 day ago

Thu, Sep 25 - Thu, Oct 2

BOS

Logan Intl.

LIS

Humberto Delgado

$1,075 Roundtrip, found 1 day ago

$1,075

Roundtrip

found 1 day ago

Select JetBlue Airways flight, departing Thu, Sep 25 from Logan Intl. to Humberto Delgado, returning Thu, Oct 2, priced at $1,075 found 1 day ago

Thu, Sep 25 - Thu, Oct 2

BOS

Logan Intl.

LIS

Humberto Delgado

$1,296 Roundtrip, found 1 day ago

$1,296

Roundtrip

found 1 day ago

Select Virgin Atlantic flight, departing Thu, Sep 25 from Logan Intl. to Humberto Delgado, returning Thu, Oct 2, priced at $1,296 found 1 day ago