$304 Cheap United flights Boston (BOS) to Lisbon (LIS)

$304 Cheap United flights Boston (BOS) to Lisbon (LIS)

Prices were available within the past 7 days and start at $304 for one-way flights and $498 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Nov 29 - Sat, Dec 6

BOS

Boston

LIS

Lisbon

$498 Roundtrip, found 3 days ago

$498

Roundtrip

found 3 days ago

Select United flight, departing Sat, Nov 29 from Boston to Lisbon, returning Sat, Dec 6, priced at $498 found 3 days ago

Sun, Nov 16 - Tue, Dec 2

BOS

Boston

LIS

Lisbon

$503 Roundtrip, found 1 day ago

$503

Roundtrip

found 1 day ago

Select United flight, departing Sun, Nov 16 from Boston to Lisbon, returning Tue, Dec 2, priced at $503 found 1 day ago

Wed, Nov 26 - Sat, Dec 6

BOS

Boston

LIS

Lisbon

$505 Roundtrip, found 3 days ago

$505

Roundtrip

found 3 days ago

Select United flight, departing Wed, Nov 26 from Boston to Lisbon, returning Sat, Dec 6, priced at $505 found 3 days ago

Wed, Nov 26 - Sun, Dec 7

BOS

Boston

LIS

Lisbon

$506 Roundtrip, found 3 days ago

$506

Roundtrip

found 3 days ago

Select United flight, departing Wed, Nov 26 from Boston to Lisbon, returning Sun, Dec 7, priced at $506 found 3 days ago

Sat, Nov 8 - Mon, Nov 17

BOS

Boston

LIS

Lisbon

$507 Roundtrip, found 1 day ago

$507

Roundtrip

found 1 day ago

Select United flight, departing Sat, Nov 8 from Boston to Lisbon, returning Mon, Nov 17, priced at $507 found 1 day ago

Wed, Nov 19 - Tue, Dec 2

BOS

Boston

LIS

Lisbon

$521 Roundtrip, found 1 day ago

$521

Roundtrip

found 1 day ago

Select United flight, departing Wed, Nov 19 from Boston to Lisbon, returning Tue, Dec 2, priced at $521 found 1 day ago

Mon, Nov 3 - Mon, Nov 17

BOS

Boston

LIS

Lisbon

$525 Roundtrip, found 1 day ago

$525

Roundtrip

found 1 day ago

Select United flight, departing Mon, Nov 3 from Boston to Lisbon, returning Mon, Nov 17, priced at $525 found 1 day ago