$359 Cheap United flights Boston (BOS) to Madrid (MAD)

$359 Cheap United flights Boston (BOS) to Madrid (MAD)

Prices were available within the past 7 days and start at $359 for one-way flights and $367 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Oct 5 - Mon, Oct 27

BOS

Boston

MAD

Madrid

$367 Roundtrip, found 3 days ago

$367

Roundtrip

found 3 days ago

Select United flight, departing Sun, Oct 5 from Boston to Madrid, returning Mon, Oct 27, priced at $367 found 3 days ago

Sun, Oct 5 - Wed, Oct 29

BOS

Boston

MAD

Madrid

$371 Roundtrip, found 2 days ago

$371

Roundtrip

found 2 days ago

Select United flight, departing Sun, Oct 5 from Boston to Madrid, returning Wed, Oct 29, priced at $371 found 2 days ago

Sun, Oct 5 - Thu, Oct 30

BOS

Boston

MAD

Madrid

$374 Roundtrip, found 3 days ago

$374

Roundtrip

found 3 days ago

Select United flight, departing Sun, Oct 5 from Boston to Madrid, returning Thu, Oct 30, priced at $374 found 3 days ago

Sun, Oct 5 - Wed, Oct 29

BOS

Boston

MAD

Madrid

$377 Roundtrip, found 2 days ago

$377

Roundtrip

found 2 days ago

Select United flight, departing Sun, Oct 5 from Boston to Madrid, returning Wed, Oct 29, priced at $377 found 2 days ago

Sun, Oct 5 - Wed, Oct 29

BOS

Boston

MAD

Madrid

$378 Roundtrip, found 2 days ago

$378

Roundtrip

found 2 days ago

Select United flight, departing Sun, Oct 5 from Boston to Madrid, returning Wed, Oct 29, priced at $378 found 2 days ago

Sun, Oct 5 - Wed, Oct 29

BOS

Boston

MAD

Madrid

$383 Roundtrip, found 2 days ago

$383

Roundtrip

found 2 days ago

Select United flight, departing Sun, Oct 5 from Boston to Madrid, returning Wed, Oct 29, priced at $383 found 2 days ago

Sun, Oct 5 - Wed, Oct 29

BOS

Boston

MAD

Madrid

$384 Roundtrip, found 2 days ago

$384

Roundtrip

found 2 days ago

Select United flight, departing Sun, Oct 5 from Boston to Madrid, returning Wed, Oct 29, priced at $384 found 2 days ago

Sun, Oct 5 - Wed, Oct 29

BOS

Boston

MAD

Madrid

$389 Roundtrip, found 2 days ago

$389

Roundtrip

found 2 days ago

Select United flight, departing Sun, Oct 5 from Boston to Madrid, returning Wed, Oct 29, priced at $389 found 2 days ago

Sun, Oct 5 - Wed, Oct 29

BOS

Boston

MAD

Madrid

$391 Roundtrip, found 2 days ago

$391

Roundtrip

found 2 days ago

Select United flight, departing Sun, Oct 5 from Boston to Madrid, returning Wed, Oct 29, priced at $391 found 2 days ago