$578 Cheap United flights St. Louis (STL) to Madrid (MAD)

View $578 flight on Tue, Aug 12, 2025Opens in a new window

$578 Cheap United flights St. Louis (STL) to Madrid (MAD)

Prices were available within the past 7 days and start at $578 for one-way flights and $572 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sun, Oct 5 - Tue, Oct 14
STL
St. Louis
MAD
Madrid
$572 Roundtrip, found 3 days ago
$572
Roundtrip
found 3 days ago
Select United flight, departing Sun, Oct 5 from St. Louis to Madrid, returning Tue, Oct 14, priced at $572 found 3 days ago
United
Sun, Oct 5 - Wed, Oct 15
STL
St. Louis
MAD
Madrid
$578 Roundtrip, found 3 days ago
$578
Roundtrip
found 3 days ago
Select United flight, departing Sun, Oct 5 from St. Louis to Madrid, returning Wed, Oct 15, priced at $578 found 3 days ago
United
Wed, Oct 8 - Wed, Oct 15
STL
St. Louis
MAD
Madrid
$585 Roundtrip, found 3 days ago
$585
Roundtrip
found 3 days ago
Select United flight, departing Wed, Oct 8 from St. Louis to Madrid, returning Wed, Oct 15, priced at $585 found 3 days ago
United
Sun, Oct 5 - Sun, Oct 12
STL
St. Louis
MAD
Madrid
$622 Roundtrip, found 3 days ago
$622
Roundtrip
found 3 days ago
Select United flight, departing Sun, Oct 5 from St. Louis to Madrid, returning Sun, Oct 12, priced at $622 found 3 days ago
United
Wed, Oct 8 - Sun, Oct 12
STL
St. Louis
MAD
Madrid
$635 Roundtrip, found 3 days ago
$635
Roundtrip
found 3 days ago
Select United flight, departing Wed, Oct 8 from St. Louis to Madrid, returning Sun, Oct 12, priced at $635 found 3 days ago
United
Thu, Oct 9 - Sun, Oct 12
STL
St. Louis
MAD
Madrid
$685 Roundtrip, found 3 days ago
$685
Roundtrip
found 3 days ago
Select United flight, departing Thu, Oct 9 from St. Louis to Madrid, returning Sun, Oct 12, priced at $685 found 3 days ago
United
Tue, Aug 12 - Tue, Aug 26
STL
St. Louis
MAD
Madrid
$732 Roundtrip, found 2 days ago
$732
Roundtrip
found 2 days ago
Select United flight, departing Tue, Aug 12 from St. Louis to Madrid, returning Tue, Aug 26, priced at $732 found 2 days ago
United
Tue, Aug 12 - Tue, Aug 26
STL
St. Louis
MAD
Madrid
$736 Roundtrip, found 2 days ago
$736
Roundtrip
found 2 days ago
Select United flight, departing Tue, Aug 12 from St. Louis to Madrid, returning Tue, Aug 26, priced at $736 found 2 days ago
United
Tue, Aug 12 - Tue, Aug 26
STL
St. Louis
MAD
Madrid
$741 Roundtrip, found 2 days ago
$741
Roundtrip
found 2 days ago
Select United flight, departing Tue, Aug 12 from St. Louis to Madrid, returning Tue, Aug 26, priced at $741 found 2 days ago
United
Tue, Aug 12 - Tue, Aug 26
STL
St. Louis
MAD
Madrid
$743 Roundtrip, found 2 days ago
$743
Roundtrip
found 2 days ago
Select United flight, departing Tue, Aug 12 from St. Louis to Madrid, returning Tue, Aug 26, priced at $743 found 2 days ago
United
Tue, Aug 12 - Tue, Aug 26
STL
St. Louis
MAD
Madrid
$747 Roundtrip, found 2 days ago
$747
Roundtrip
found 2 days ago
Select United flight, departing Tue, Aug 12 from St. Louis to Madrid, returning Tue, Aug 26, priced at $747 found 2 days ago