Hughton has put the victory down to team spirit and hopes that his side can improve their current league position.
"I'm absolutely delighted. When you've got the wealth of experience that they have and the quality they have, you travel very well," Hughton told talkSPORT. "It was a massive team effort, as it has to be against Man United, and I thought we were worthy of the win.
"We had to be resilient and you've got to be sturdy and disciplined, and I thought it was excellent in the middle of the park. We have to play at that type of intensity and at that level to get our results. It's a nice feeling at the moment because we're picking up some points.
"We can't underestimate how good this division is, and we certainly don't, but if we have more days where we put in that type of commitment then we've got to have a chance of getting results."
Norwich currently sit 13th in the Premier League table.