Cheapest return flights from St. Louis to Barcelona in May from $996
AirHint found the following cheapest return flights from St. Louis (STL) to Barcelona (BCN) in May 2025 (see full year).
Return flights
| 25 May - 28 May | Air Canada | ||
| 31 May - 13 Jun | Spirit Airlines | ||
| 22 May - 29 May | Frontier Airlines | ||
| 21 May - 25 May | Hawaiian Airlines |
Also check the deals for one-way flights from St. Louis to Barcelona in May.
The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.
