The moment of the game came midway through the first half when Oyegoke brilliantly doubled England’s advantage in his first appearance for the MU20.
The defender, on loan to MK Dons from Brentford, picked up the ball down the right flank outside the box and impressively battered three men to slither into the box before delivering an unstoppable left-footed curler into the top corner unleashed.
Delap was then relieved to see the offside flag after he could and should have scored a third English goal, but his close shot went over the bar on the stretch.
After struggling to gain a foothold in the game, the South Americans spent the final ten minutes of the first half.
Their first shot on target came from their liveliest player Dario Osorio, who will play against Morocco in a couple of days for the Chile senior team, but his shot from outside the box was easily countered by Harvey Davies.
Moments later, Davies had to be on his feet to scoop another long-range shot from Chile around the post for the first corner.
La Roja continued to threaten free-kicks and balls into the penalty area but failed to find a breakthrough before the break.
England regained the lead after the break and went wide of goal, Edozie testing the keeper with a low shot.
Delap’s labyrinthine run then resulted in Carney Chukwuemeka, newly signed from Chelsea, missing his shot as England showed they could move quickly from back to front.
Pushing for third place, the Young Lions had three block attempts in quick succession as Chile put their bodies on the line.
Then finally came the third and every little doubt about the result was dispelled as Edozie was deservedly included in the scorer’s chart. England’s left caused problems again and when a cross went uncleared, Southampton’s Edozie sought his place directly in the box.
Both sides began making frequent substitutions midway through the second half, causing the game to lose its rhythm somewhat and although Chile can be encouraged by their performance after the break, the game was already over.
England managed to get through the rest of the encounter in comfort to start their campaign on a positive note.
Next up for MU20 is a game against Morocco on Saturday (17:00 CEST) before taking on Australia on Tuesday 27 September (16:00 CEST).
England: 1. Harvey Davies (Liverpool), 2. Daniel Oyegoke (Milton Keynes Dons, on loan from Brentford), 3. Callum Doyle (Coventry City, on loan from Manchester City), 4. Alex Scott (Bristol City), 5. Ronnie Edwards ( Peterborough United) , 6 Finley Burns (Manchester City), 7 Sam Edozie (Southampton), 8 Carney Chukwuemeka © (Chelsea), 9 Liam Delap (Stoke City, on loan from Manchester City), 10 Aaron Ramsey (Norwich City, on loan from Aston Villa). ), 11 Sam Iling Junior (Juventus)
Substitute: 14 Tim Iroegbunam (Queens Park Rangers, on loan from Aston Villa) for Edwards 45, 15 Reece Welch (Everton) for Burns 45, 12 Ethan Ingram (West Bromwich Albion) for Oyegoke 60, 23 Harvey Vale (Hull City, on loan from Chelsea) for Iling-Junior 60, 17 Malcolm Ebowei (Crystal Palace) for Edozie 70, 19 Dane Scarlett (Portsmouth, on loan from Tottenham Hotspur) for Delap 70, 21 James Balagizi (Crawley Town, on loan from Liverpool) for Ramsey 80, 18 Charlie Patino (Blackpool, on loan from Arsenal) for Scott 80
Substitutes not used: 13 Matthew Cox (TG), 20 Daniel Jebbison, 22 Tobi Oluwayemi (TG)
head coach: Ian Foster
Goals: Liam Delap 10, Daniel Oyegoke 23, Sam Edozie 62