AirHint found the following cheapest return flights from St. Louis (STL) to Madrid (MAD) in July 2026 (see full year).
Return flights
| 21 Jul - 28 Jul | Iberia | ||
| 16 Jul - 23 Jul | Iberia | ||
| 31 Jul - 07 Aug | Iberia | ||
| 06 Jul - 13 Jul | Iberia | ||
| 12 Jul - 19 Jul | British Airways | ||
| 26 Jul - 02 Aug | Iberia | ||
| 01 Jul - 08 Jul | Iberia | ||
| 11 Jul - 18 Jul | Iberia |
Also check the deals for one-way flights from St. Louis to Madrid in July.
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