Help me get my babies home!!

I moved cross country to start a new life for my family. I have two daughters, 2 and 5, and had to leave them with my mom back home. I knew I could stay with friends where I had moved to, but I did not want my children to have to jump couch to couch with me, so my mom agreed to watch them until I got us a home lined up. I just got a job and have had to take loans out to pay for last minute issues that occured, and now I am trying my best to get my babies here. I have until August 10th to get then here, since that is when school will start. I miss my babies terribly and need help finding a way to get them here. I know Amtrak is cheaper than a plane, but I just got a job and I can't take almost a week off for the trip. Plane tickets seem ridiculously expensive. I have looked on cheapoair and smartfare but they are all most a thousand dollars for three tixkets and I simply can't afford it. I have put a title loan on my car to pay for our house and took a payday loan out already to get the electricity on. Please if anyone knows anyways to get cheap air miles or cheap tickets..I need my babies home with me..it's been almost two months without them and I miss them terribly.