Cheapest return flights from St. Louis to Barcelona in June from $791

Best time to book flights for St. Louis (STL) to Barcelona (BCN) flights at AirHint

AirHint found the following cheapest return flights from St. Louis (STL) to Barcelona (BCN) in June 2025 (see full year).

Return flights

30 Jun - 16 Jul Air Canada
10 Jun - 17 Jun Air Canada
02 Jun - 09 Jun United
06 Jun - 13 Jun United
12 Jun - 19 Jun United
30 Jun - 07 Jul United
08 Jun - 15 Jun United
14 Jun - 21 Jun Frontier Airlines
24 Jun - 01 Jul United
16 Jun - 23 Jun United
26 Jun - 03 Jul United
28 Jun - 05 Jul United
20 Jun - 27 Jun United
18 Jun - 25 Jun United

Also check the deals for one-way flights from St. Louis to Barcelona in June.

Skyscanner

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.

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