Los Angeles FC

On October 30, 2014, following the dissolution of Chivas USA, Major League Soccer awarded a new expansion team to Los Angeles. On September 15, 2015, the club announced that Los Angeles Football Club, which had previously been used as a placeholder name for the club, would be the official team name. Henry Nguyen, Los Angeles FC's principal owner at the time, hinted at this possibility shortly after the club was announced in describing the name as "timeless".

LAFC announced Bob Bradley as its head coach in July 2017, joining general director John Thorrington in a search for players. Mexican forward Carlos Vela was signed as the club's first designated player on August 11, 2017.

On March 4, 2018, LAFC played its first MLS game, a 1–0 win against Seattle Sounders FC at CenturyLink Field in Seattle. LAFC designated player Diego Rossi scored the club's first-ever competitive goal in the 11th minute, assisted by Vela.

On March 31, 2018, LAFC suffered its first MLS loss, giving up a 3–0 lead to lose 4–3 to LA Galaxy in the MLS debut of Zlatan Ibrahimović. LAFC was the second team ever to lose an MLS game after leading 3–0 during the match. Despite the loss, LAFC won 4 of the 6 games on their road trip to start the season, becoming the first team to earn 12 points from a season opening road trip of 6 games or more. They finished the season with 7 road wins which is the most for an expansion team in the post-shootout era.

LAFC accomplished the best regular season for an MLS expansion team, earning 57 points. The total surpassed the 56 picked up the 1998 Chicago Fire, also coached by Bob Bradley, as well as the post-shootout era record of 55 set in 2017 by Atlanta United FC. LAFC's seven road wins also tied for the most ever by an expansion team in the pre or post shootout-era with the '98 Fire who had two road wins come via the shootout. They finished second all-time in goals scored by an expansion team in a season, with 68, just behind Atlanta's 70.

On October 6, 2018, LAFC clinched its first playoff spot after a 3–0 victory against the Colorado Rapids finishing third in the West, but were knocked out at home in the first round in a 3–2 loss to sixth-place Real Salt Lake.

2020 CONCACAF Champions League

Los Angeles FC appeared in CONCACAF Champions League for the first time in 2020. After going down 2–0 in the first leg against Club León, LAFC came back and won 3–0 in the second leg, advancing (3–2 on aggregate) to the round of 16. Shortly after that, due to the COVID-19 pandemic, the tournament was put on hold. When the tournament resumed in December, under a new one-off format, Los Angeles FC defeated Cruz Azul (2–1) after going down 1–0. In the semi-finals LAFC defeated Club América (3–1), again in comeback fashion. They became the third MLS side to advance to the Final, where they were defeated by Tigres UANL (2–1), who had been runners-up in previous editions of the tournament, and who went on to become the runners-up in the Club World Cup.

2022 MLS Cup Champions

LAFC spent the majority of the 2022 MLS season pushing for the league's all-time points record (73, set the previous year), but major squad turnover brought about a string of losses (five in their final nine matches) which led to LAFC settling for 67 points as they won their second Supporters' Shield. This total was equal with the Philadelphia Union, who lost the Shield on a wins tiebreaker. LAFC defeated their archrivals, the Galaxy, 3–2 in the conference semifinals before knocking out Austin FC 3–0 to advance to their first-ever MLS Cup. Los Angeles FC won the 2022 MLS Cup by defeating the Union in a penalty shootout following a 3–3 draw through extra time. The two latest goals in MLS Cup Playoffs history were scored in the match, with Gareth Bale scoring an equalizer in the 128th minute to take the match to penalties, which LAFC won 3–0. LAFC substitute goalkeeper John McCarthy made two saves in the shootout and was named the most valuable player of the match.

2023 CONCACAF Champions League

During the team's 2023 season, Los Angeles had advanced to the 2023 CONCACAF Champions League final for the club's second time in four years. Their road to the finals consisted of victories against Alajuelense, Vancouver Whitecaps FC, and Philadelphia Union. LA had faced Club León in the final, who the team had faced before in the tournament. Los Angeles were the favorites, heading to their matches. Despite Bouanga scoring a late goal, to keep the team's chances of winning the final, Leon had bested LA 3–1 aggregate in their second match at home.