$644 Cheap United flights Boston (BOS) to Lisbon (LIS)

$644 Cheap United flights Boston (BOS) to Lisbon (LIS)

Prices were available within the past 7 days and start at $644 for one-way flights and $497 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Jan 21 - Wed, Jan 28

BOS

Boston

LIS

Lisbon

$497 Roundtrip, found 1 day ago

$497

Roundtrip

found 1 day ago

Select United flight, departing Wed, Jan 21 from Boston to Lisbon, returning Wed, Jan 28, priced at $497 found 1 day ago

Sat, Jan 24 - Sat, Jan 31

BOS

Boston

LIS

Lisbon

$498 Roundtrip, found 1 day ago

$498

Roundtrip

found 1 day ago

Select United flight, departing Sat, Jan 24 from Boston to Lisbon, returning Sat, Jan 31, priced at $498 found 1 day ago

Thu, Jan 22 - Mon, Jan 26

BOS

Boston

LIS

Lisbon

$501 Roundtrip, found 1 day ago

$501

Roundtrip

found 1 day ago

Select United flight, departing Thu, Jan 22 from Boston to Lisbon, returning Mon, Jan 26, priced at $501 found 1 day ago

Thu, Jan 22 - Sun, Jan 25

BOS

Boston

LIS

Lisbon

$502 Roundtrip, found 1 day ago

$502

Roundtrip

found 1 day ago

Select United flight, departing Thu, Jan 22 from Boston to Lisbon, returning Sun, Jan 25, priced at $502 found 1 day ago

Fri, Jan 23 - Sun, Jan 25

BOS

Boston

LIS

Lisbon

$503 Roundtrip, found 1 day ago

$503

Roundtrip

found 1 day ago

Select United flight, departing Fri, Jan 23 from Boston to Lisbon, returning Sun, Jan 25, priced at $503 found 1 day ago

Thu, Jan 22 - Tue, Jan 27

BOS

Boston

LIS

Lisbon

$505 Roundtrip, found 1 day ago

$505

Roundtrip

found 1 day ago

Select United flight, departing Thu, Jan 22 from Boston to Lisbon, returning Tue, Jan 27, priced at $505 found 1 day ago

Wed, Jan 21 - Wed, Jan 28

BOS

Boston

LIS

Lisbon

$506 Roundtrip, found 1 day ago

$506

Roundtrip

found 1 day ago

Select United flight, departing Wed, Jan 21 from Boston to Lisbon, returning Wed, Jan 28, priced at $506 found 1 day ago

Wed, Jan 21 - Wed, Jan 28

BOS

Boston

LIS

Lisbon

$512 Roundtrip, found 1 day ago

$512

Roundtrip

found 1 day ago

Select United flight, departing Wed, Jan 21 from Boston to Lisbon, returning Wed, Jan 28, priced at $512 found 1 day ago

Wed, Jan 21 - Wed, Jan 28

BOS

Boston

LIS

Lisbon

$517 Roundtrip, found 1 day ago

$517

Roundtrip

found 1 day ago

Select United flight, departing Wed, Jan 21 from Boston to Lisbon, returning Wed, Jan 28, priced at $517 found 1 day ago

Wed, Jan 21 - Wed, Jan 28

BOS

Boston

LIS

Lisbon

$526 Roundtrip, found 1 day ago

$526

Roundtrip

found 1 day ago

Select United flight, departing Wed, Jan 21 from Boston to Lisbon, returning Wed, Jan 28, priced at $526 found 1 day ago

Wed, Jan 21 - Wed, Jan 28

BOS

Boston

LIS

Lisbon

$528 Roundtrip, found 1 day ago

$528

Roundtrip

found 1 day ago

Select United flight, departing Wed, Jan 21 from Boston to Lisbon, returning Wed, Jan 28, priced at $528 found 1 day ago