Galloway appeared in all 66 of the Pistons' games during the coronavirus-shortened regular season. He averaged 10.3 points, 2.3 rebounds and 1.5 assists in 25.8 minutes. He shot career highs in field-goal percentage (43.5), three-point percentage (39.9) and free-throw percentage (85.9). Galloway set new single-game career highs of 32 points and seven made threes. His other single-game season highs stood at seven rebounds, six assists, four steals and one block. Galloway's longest streak of double-digit scoring was 14 games from Oct. 10 through Nov. 27. He averaged 14.5 points on 10.2 shots, 1.9 rebounds and 1.9 assists in 29.8 minutes. Galloway's longest streak of posting at least one rebound and one assist was six games from Nov. 6 through Nov. 20. He averaged 17.7 points on 11.3 shots, 2.3 rebounds and 2.3 assists in 30.9 minutes. In the 15 games that Galloway saw at least 30 minutes, he averaged 13.3 points on 10.3 shots, 2.5 rebounds and 2.1 assists.

During the 2018-19 season, Langston Galloway improved in almost every statistical category when compared to his first year in Motown. His playing time jumped from 15 to 22 minutes per game and he appeared in 22 more games. Galloway's scoring improved to 8.2 points per game. He also increased his three-point activity and accuracy, attempting 4.8 treys per game and shooting 36 percent from behind the arc. The guard delivered arguably his best performance on Nov. 5 after compiling 21 points, nine rebounds, four assists, and two steals over 35 minutes. He exceeded the 20-point mark on five occasions, topping at 24 on Dec. 9 versus the Pelicans. And after the All-Star Break, Galloway shot better. His field goal percentage increased by five percentage points and his three point shooting improved by 9 percentage points. Galloway served as an important bench player due to his long-range success and ball-handling skills. He hit a career-high 135 triples on the season and had 11 games where he hit at least four treys -- including a 6-for-6 performance in a Mar. 10 win over the Bulls. Detroit leaned on Galloway during the playoffs, increasing his playing time to 28 minutes per game. Galloway's Pistons would lose in the first round of the playoffs to the Bucks. Galloway has one more season remaining on his contract with the Pistons.

Galloway signed a multi-year contract with the Pistons in the summer prior to the 2017-2018 season. He played 58 contests and started twice during his first campaign in Detroit, averaging 6.2 points, 1.5 rebounds and 1.0 assists in just under 15 minutes per game. The Louisiana native shot 37 percent from the field, including 34 percent from long range. He fared well in his Pistons debut, dropping 16 points on 6-of-11 shooting, including 3-of-6 from long range, in 25 minutes against Charlotte on Oct. 18. For October, Galloway averaged 7.6 points on 57 percent shooting in 14 minutes. His season-high 18 points came on 5-of-9 shooting, including 5-of-7 from long range and 3-of-3 from the foul line, on Dec. 12 against Denver. He followed up with 17 points on 5-of-9 shooting from long range in the next contest at Atlanta. All told, the 6-foot-1, 200-pounder scored in double digits a total of 14 times, and he also flashed some defensive upside, averaging 1.1 steals in just under 16 minutes per game in January. He tallied a season-high six assists, along with 13 points, in 19 minutes in a home win on Feb. 5 against Portland. By season's end, Galloway totaled 360 points, 92 rebounds, 58 assists and 35 steals.

In his second NBA season, Galloway appeared in all 82 games and made seven starts for the Knicks. The shooting guard averaged 24.8 minutes per game and posted averages of 7.6 points, 3.5 rebounds and 2.5 assists per game. He shot 39.3 percent from the field, 34.4 percent from three-point range and 75.4 percent from the line. On Opening Night against the Bucks, Galloway went for 16 points, four rebounds and three assists. He made his first start of the season on Jan. 16 against Memphis, finishing with 11 points, a season-high 11 rebounds and five assists. In a loss to Oklahoma City on Jan. 26, Galloway went for a season-high 21 points on 7-of-13 shooting. In an April 1 win over Brooklyn, Galloway posted 18 points, a season-high seven assists, and six rebounds. He registered at least four steals on three different occasions, including a season-high five in a win over Oklahoma City on Nov. 20.