[5] On 10 April 1910 the first formal match was played in the city of Huesca between the teams of the Sertorius Club, formed by high school students, and El Ideal de Magisterio Oscense.

[4] Lorenzo Lera was the first associate of the club, which was enrolled in the Federation with the blaugrana colours as its founding members were FC Barcelona supporters.

[6] Huesca were champions of their Tercera División group for two years running for the 1966-67 and 1967-68 seasons but were defeated in the playoff promotions each time.

[7] In 2006 the club finished second in the Copa Federación de España, losing to Puertollano; in that same season it narrowly avoided relegation to Tercera División, after a play-off against Castillo.

[7] 2008–09's second division was a regular one for Huesca led by coach Antonio Calderón, with the new league status being maintained with many rounds left.

Rubén Castro, loaned by Deportivo La Coruña, was one of the most important players during the campaign, scoring 14 times, ninth-best in the league.

Relegation followed at the end of the 2012–13 season, but the club returned to the Segunda División in 2015 after a first-place finish and eventually a two-leg play-off victory over Huracán Valencia.

[11] In the 2017–18 season, Huesca was promoted to La Liga for the first time in their history after winning 2–0 against Lugo on 21 May 2018 at the Anxo Carro stadium.

[13][14] Huesca won promotion back to La Liga on 17 July 2020, after a 3–0 win over Numancia and secured the league title on the last matchday.

[14] A month later, the club had its first Spanish international, goalkeeper Álvaro Fernández, who stepped in along with his under-21 teammates after the senior squad became unavailable due to a COVID-19 case.

[17] During the 1971–72 season Huesca decided to build a new football stadium, Estadio El Alcoraz, the team's third in its history, located in the hills of San Jorge with a capacity of 9,100 seats.