Home Slickdeals Boston to Barcelona Spain $191 RT Nonstop Airfares on Iberia Level (Limited... Slickdeals Boston to Barcelona Spain $191 RT Nonstop Airfares on Iberia Level (Limited Travel March and October-December 2020) By ARCOM - 22 January 2020 134 0 SHARE Facebook Twitter Go to the deal page: Boston to Barcelona Spain $191 RT Nonstop Airfares on Iberia Level (Limited Travel March and October-December 2020)