Answer
(Fatwa: 286/211/L=1432)
If the ticket money was lost without your mistake, you had the option to inform the people of jama’ah about theft and ask them for the ticket money again. You did not do it and paid its price from your pocket, it was a benefaction from your side. As per the Shariah, it is haram to take interest-based loan from bank, but since you have taken it in severe compulsion, hence it is hoped that its curse shall not turn towards you. If you have money with you, you should pay it off as soon as you can, otherwise you can pay it gradually. May Almighty Allah arrange any hidden source for your debt and give you its good reward!
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband