Healy told BBC Sport: "I know my future is not going to be at Sunderland.
"I'm more than willing to go back to the Championship and get back to enjoying my football again.
"It's been a disappointing time and people have said that it's time to move on, but when you have a contract and a family where you live, sometimes it's difficult."
Healy has been linked with several Championship clubs in recent weeks and is not aware of anything concrete.
However, he has admitted a return to seemingly Championship-bound Leeds would appeal to him.
He said: "I haven't got my eye on anywhere. I have been linked to a number of Championship clubs, but I can't name anybody.
"But it's two weeks until the end of the transfer window and I know that things aren't going to progress for me at Sunderland.
"If there was a club I was ever going to go back to play for, it would be Leeds. I have huge affection for the club."
Healy's lack of football has had an unwelcome effect on the international front, where he lost his place in the starting line-up for the November friendly against Serbia, the first time he had been dropped for a home game at Windsor Park since he made his debut in February 2000.
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