iPhone stuck in headphones mode

Recently ive been having some trouble with my iPhone 6s Plus getting stuck in headphones mode. I never use ear buds, only my Airpods, and it will randomly go into headphones mode and it wont come out. Ive tried all of the ways to get it out and it doesn't seem to work. I have the limited warranty so what are the chances of them covering headphone jack replacement. I do not have enough funds to pay over $100 bucks over it so i might just have to live with it for now until i get a new phone. Thanks!