$579 Cheap United flights Boston (BOS) to Madrid (MAD)

$579 Cheap United flights Boston (BOS) to Madrid (MAD)

Prices were available within the past 7 days and start at $579 for one-way flights and $728 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, May 26 - Wed, Jun 4

BOS

Boston

MAD

Madrid

$728 Roundtrip, found 1 day ago

$728

Roundtrip

found 1 day ago

Select United flight, departing Mon, May 26 from Boston to Madrid, returning Wed, Jun 4, priced at $728 found 1 day ago

Mon, May 26 - Wed, Jun 4

BOS

Boston

MAD

Madrid

$732 Roundtrip, found 1 day ago

$732

Roundtrip

found 1 day ago

Select United flight, departing Mon, May 26 from Boston to Madrid, returning Wed, Jun 4, priced at $732 found 1 day ago

Mon, May 26 - Wed, Jun 4

BOS

Boston

MAD

Madrid

$737 Roundtrip, found 1 day ago

$737

Roundtrip

found 1 day ago

Select United flight, departing Mon, May 26 from Boston to Madrid, returning Wed, Jun 4, priced at $737 found 1 day ago

Mon, May 26 - Wed, Jun 4

BOS

Boston

MAD

Madrid

$738 Roundtrip, found 1 day ago

$738

Roundtrip

found 1 day ago

Select United flight, departing Mon, May 26 from Boston to Madrid, returning Wed, Jun 4, priced at $738 found 1 day ago

Mon, May 26 - Wed, Jun 4

BOS

Boston

MAD

Madrid

$742 Roundtrip, found 1 day ago

$742

Roundtrip

found 1 day ago

Select United flight, departing Mon, May 26 from Boston to Madrid, returning Wed, Jun 4, priced at $742 found 1 day ago

Mon, May 26 - Wed, Jun 4

BOS

Boston

MAD

Madrid

$744 Roundtrip, found 1 day ago

$744

Roundtrip

found 1 day ago

Select United flight, departing Mon, May 26 from Boston to Madrid, returning Wed, Jun 4, priced at $744 found 1 day ago

Mon, May 26 - Wed, Jun 4

BOS

Boston

MAD

Madrid

$745 Roundtrip, found 1 day ago

$745

Roundtrip

found 1 day ago

Select United flight, departing Mon, May 26 from Boston to Madrid, returning Wed, Jun 4, priced at $745 found 1 day ago

Mon, May 26 - Wed, Jun 4

BOS

Boston

MAD

Madrid

$747 Roundtrip, found 1 day ago

$747

Roundtrip

found 1 day ago

Select United flight, departing Mon, May 26 from Boston to Madrid, returning Wed, Jun 4, priced at $747 found 1 day ago