$662 Cheap United flights Boston (BOS) to Lisbon (LIS)

$662 Cheap United flights Boston (BOS) to Lisbon (LIS)

Prices were available within the past 7 days and start at $662 for one-way flights and $836 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Sep 22 - Wed, Sep 30

BOS

Boston

LIS

Lisbon

$836 Roundtrip, found 17 hours ago

$836

Roundtrip

found 17 hours ago

Select United flight, departing Tue, Sep 22 from Boston to Lisbon, returning Wed, Sep 30, priced at $836 found 17 hours ago

Tue, Sep 22 - Wed, Sep 30

BOS

Boston

LIS

Lisbon

$839 Roundtrip, found 17 hours ago

$839

Roundtrip

found 17 hours ago

Select United flight, departing Tue, Sep 22 from Boston to Lisbon, returning Wed, Sep 30, priced at $839 found 17 hours ago

Tue, Sep 22 - Wed, Sep 30

BOS

Boston

LIS

Lisbon

$854 Roundtrip, found 17 hours ago

$854

Roundtrip

found 17 hours ago

Select United flight, departing Tue, Sep 22 from Boston to Lisbon, returning Wed, Sep 30, priced at $854 found 17 hours ago

Tue, Sep 22 - Wed, Sep 30

BOS

Boston

LIS

Lisbon

$859 Roundtrip, found 17 hours ago

$859

Roundtrip

found 17 hours ago

Select United flight, departing Tue, Sep 22 from Boston to Lisbon, returning Wed, Sep 30, priced at $859 found 17 hours ago

Tue, Sep 22 - Wed, Sep 30

BOS

Boston

LIS

Lisbon

$864 Roundtrip, found 17 hours ago

$864

Roundtrip

found 17 hours ago

Select United flight, departing Tue, Sep 22 from Boston to Lisbon, returning Wed, Sep 30, priced at $864 found 17 hours ago

Tue, Sep 22 - Mon, Sep 28

BOS

Boston

LIS

Lisbon

$896 Roundtrip, found 17 hours ago

$896

Roundtrip

found 17 hours ago

Select United flight, departing Tue, Sep 22 from Boston to Lisbon, returning Mon, Sep 28, priced at $896 found 17 hours ago

Sat, Sep 19 - Tue, Sep 29

BOS

Boston

LIS

Lisbon

$898 Roundtrip, found 17 hours ago

$898

Roundtrip

found 17 hours ago

Select United flight, departing Sat, Sep 19 from Boston to Lisbon, returning Tue, Sep 29, priced at $898 found 17 hours ago

Sun, Sep 20 - Sun, Sep 27

BOS

Boston

LIS

Lisbon

$901 Roundtrip, found 17 hours ago

$901

Roundtrip

found 17 hours ago

Select United flight, departing Sun, Sep 20 from Boston to Lisbon, returning Sun, Sep 27, priced at $901 found 17 hours ago