Either that are call the 1800 number and that would be the easiest way to go.
Best way and cheapest rates for trips is to use the greyhound app from the playstore for android or the appstore for apple. If you book over 15 days in advance and travel on a Tuesday, Wednesday or thursdat you get the lowest rates. If ypu purchase the day of travel at the station you pay the highest rates. Also... Try to book the express routes, they make limited stops instead of every stop on the way. Hope this helps.
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