It depends what day and what time you leave you would have to call Grayhound office and they will let you know usually the Wicks weekends or more expensive Wednesday Thursdays or the cheapest
You have to go online and price your ticket. However, be sure to plan ahead and allow yourself plenty of time to get to your destination. I ride the bus often because it's so much cheaper than flying, but their service sucks. The last three bus trips that I have taken have experienced problems, and we departed about 3 hours late. That causes you to miss buses down the line that you have to connect with, and can put you into the next day reaching your destination. I would plan for that, so that if you experience the same kind of problem and you're a day late and reaching your destination, you still have time to do what you need to do!
To online and search your trips and the cost varies. Use caution when using their service because they oversold the bus I was supposed to be on but didn't have the seat. I even ordered my ticket in advance and online. Then to top it all off I had hell trying to get my money back from them. Had business.
Prices change depending on time of year and if there is a holiday or not your best bet is to contact greyhound customer service
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