[4] When he turned 18, his goalscoring abilities were recognized by second division team Real Oviedo, a club with whom he would remain for six years, until the Spanish Civil War broke out in 1936.

At Oviedo Lángara was the figurehead of the celebrated Delantera Eléctrica ("The electric forwards"), a forward line of lightning quick youthful talent that steam-rolled teams with high tempo highly skilled play; but for the onset of war the team would have surely improved upon the two third places in the seasons that preceded the war.

In 1937 he played exhibition games around Europe with the Basque National team to raise funds for the war effort.

His debut in 1939 was against perennial league champions River Plate and he scored four goals in a 4–2 victory, after arriving in Argentina on the morning of the same day.

With Lángara, San Lorenzo became an Argentine top side, eventually breaking the River Plate monopoly and winning the Argentinian league title.

This tally left him fourth, behind Zarra, Pruden and Calvo for the Pichichi Trophy, proving that at 34 years of age he could still perform at the highest level.

At the end of the season, Lángara stunned Oviedo by announcing his retirement and emigrating back to live in Mexico.

His managerial career is sketchy but his achievements are as follows: He managed Club de Deportes Unión Española in 1951 winning the Chilean league title.

One particular famous occasion was on the opening matchday of the 1933–34 season when his Oviedo faced FC Barcelona winning the match 7–3.