A number of those contracted at Elland Road ended the season this weekend with their temporary teams in the Football League and beyond.
Here, we take a look at how United's loanees got on for their clubs and how they have fared overall across the 2020/21 campaign:
Robbie Gotts - Salford City
Gotts opened the scoring for Salford in a 3-0 win over Leyton Orient in League Two, completing 90 minutes in the process.
City narrowly missed out on a play-off place on the final day of the campaign as they finished eighth in the standings and two points adrift from the top seven.
Gotts bagged three goals and two assists for the Ammies in 23 appearances after joining the club in January.
The 21-year-old spent the first half of the season with Lincoln City but made just four starts in League One before dropping down a division.
Barry Douglas - Blackburn Rovers
Douglas failed to feature for Blackburn in their final game of the season on Saturday with Rovers defeating Birmingham 5-2 in the Championship.
The 31-year-old made 30 league appearances at Ewood Park, bagging two assists from full-back as Blackburn finished 15th in the standings.
"Another season completed," the Scot wrote on social media.
"Thoroughly enjoyed my time at @Rovers lots of highs and lows but a memorable experience nonetheless with a great bunch of lads, good luck to everyone associated with the club and all the best for the future."
Douglas is now a free agent this summer after saying his goodbyes at Elland Road with his contract up in June.
Alfie McCalmont - Oldham Athletic
McCalmont featured in a 3-0 defeat to Forest Green last weekend in his final outing of his loan spell with Oldham Athletic.
The Latics endured a disappointing campaign overall, finishing 18th in the League Two table but were never troubled by relegation.
McCalmont, though, despite being in a struggling side shone in his first full campaign of senior football at Boundary Park.
The Thorp Arch academy product made 41 appearances for the club across all competitions in total, scoring 10 goals and bagging six assists from midfield.
Ryan Edmondson - Northampton Town
Edmondson failed to feature in Northampton's final day squad for their 1-1 draw with Sunderland.
The Cobblers unfortunately suffered relegation from League One and will be playing in the fourth tier next term.
The 19-year-old made 21 appearances for Town after joining in the winter window, scoring twice and bagging one assist.
"It’s been nothing but a pleasure," Edmondson wrote on social media. "I’m sorry we fell just short of our goal, all the best for the future to everyone at Northampton."
Edmondson spent the first half of the season north of the border with Aberdeen, where he featured 14 times and scored twice.
Jordan Stevens - Bradford City
Stevens was a second half substitute for Bradford in a 2-0 defeat to Morecambe in League Two.
The 21-year-old joined the Bantams in January as the club bid to avoid the drop out of the Football League.
Stevens started just once but made 15 appearances off the bench at Valley Parade as City finished 15th in the standings.
The winger spent the first half of the season with Swindon Town in the same division - making six starts and bagging one goal and assist.
Bryce Hosannah - Bradford City (returned to Leeds early)
Hosannah unfortunately returned to Leeds United after season-ending surgery.
The 22-year-old was spending the campaign on loan with Bradford City but suffered a hamstring issue in mid-December.
Hosannah failed to appear again for the Bantams and was eventually ruled out until next season following the decision to operate on the problem.
He is currently undergoing his rehab at Thorp Arch.
Mateusz Bogusz - UD Logrones
Bogusz featured for 44 minutes in La Liga 2 for UD Logrones in a 4-1 defeat to Girona.
The 19-year-old has made just nine starts this season, scoring once. Logrones sit 19th in the second division in Spain with four games to play.
Kun Temenuzhkov - Real Union
Temenuzhkov played 82 minutes for Real Union in a 1-0 win over Osasuna B.
The 21-year-old has made 18 appearances whilst out on loan, scoring three goals. Union are top of Group 2 in Spain's third tier system and have sealed promotion with one game to play.
Rafa Mujica - Las Palmas
Mujica was an unused substitute for Las Palmas in a 0-0 draw with Alcorcon.
The 22-year-old has made 10 appearances since joining on loan in the winter transfer window after seeing little action with Real Oviedo.
He has scored once and Las Palmas also hold a clause to make his move permanent this summer.
The club sit 10th in La Liga 2 with four games of the season remaining.