$483 Cheap United flights Boston (BOS) to Lisbon (LIS)

$483 Cheap United flights Boston (BOS) to Lisbon (LIS)

Prices were available within the past 7 days and start at $483 for one-way flights and $661 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Jul 24 - Fri, Aug 1

BOS

Boston

LIS

Lisbon

$661 Roundtrip, found 1 day ago

$661

Roundtrip

found 1 day ago

Select United flight, departing Thu, Jul 24 from Boston to Lisbon, returning Fri, Aug 1, priced at $661 found 1 day ago

Thu, Jul 10 - Tue, Jul 15

BOS

Boston

LIS

Lisbon

$666 Roundtrip, found 16 hours ago

$666

Roundtrip

found 16 hours ago

Select United flight, departing Thu, Jul 10 from Boston to Lisbon, returning Tue, Jul 15, priced at $666 found 16 hours ago

Thu, Jan 1 - Tue, Feb 3

BOS

Boston

LIS

Lisbon

$667 Roundtrip, found 5 days ago

$667

Roundtrip

found 5 days ago

Select United flight, departing Thu, Jan 1 from Boston to Lisbon, returning Tue, Feb 3, priced at $667 found 5 days ago

Thu, Jul 10 - Mon, Jul 14

BOS

Boston

LIS

Lisbon

$676 Roundtrip, found 16 hours ago

$676

Roundtrip

found 16 hours ago

Select United flight, departing Thu, Jul 10 from Boston to Lisbon, returning Mon, Jul 14, priced at $676 found 16 hours ago

Sat, Jul 5 - Tue, Jul 15

BOS

Boston

LIS

Lisbon

$683 Roundtrip, found 16 hours ago

$683

Roundtrip

found 16 hours ago

Select United flight, departing Sat, Jul 5 from Boston to Lisbon, returning Tue, Jul 15, priced at $683 found 16 hours ago

Thu, Jan 1 - Tue, Feb 3

BOS

Boston

LIS

Lisbon

$693 Roundtrip, found 5 days ago

$693

Roundtrip

found 5 days ago

Select United flight, departing Thu, Jan 1 from Boston to Lisbon, returning Tue, Feb 3, priced at $693 found 5 days ago

Sat, Jul 5 - Mon, Jul 14

BOS

Boston

LIS

Lisbon

$694 Roundtrip, found 16 hours ago

$694

Roundtrip

found 16 hours ago

Select United flight, departing Sat, Jul 5 from Boston to Lisbon, returning Mon, Jul 14, priced at $694 found 16 hours ago

Thu, Jan 1 - Tue, Feb 3

BOS

Boston

LIS

Lisbon

$695 Roundtrip, found 5 days ago

$695

Roundtrip

found 5 days ago

Select United flight, departing Thu, Jan 1 from Boston to Lisbon, returning Tue, Feb 3, priced at $695 found 5 days ago

Thu, Jan 1 - Tue, Feb 3

BOS

Boston

LIS

Lisbon

$698 Roundtrip, found 5 days ago

$698

Roundtrip

found 5 days ago

Select United flight, departing Thu, Jan 1 from Boston to Lisbon, returning Tue, Feb 3, priced at $698 found 5 days ago

Thu, Jan 1 - Tue, Feb 3

BOS

Boston

LIS

Lisbon

$699 Roundtrip, found 5 days ago

$699

Roundtrip

found 5 days ago

Select United flight, departing Thu, Jan 1 from Boston to Lisbon, returning Tue, Feb 3, priced at $699 found 5 days ago