As stated above, simply paying the fine won't solve the problem. I would get a lawyer to negotiate terms so you won't have to actually be arrested and sit in jail or a holding cell. If you don't know any lawyers, contact the Bar Association in your county. You can find the phone numbers
here.
You shouldn't have any problems flying unless an LEO checks your record. However, if you are in Pennsylvania, you can expect to get pulled over and then arrested.