How do I get from University of Virginia to Richmond Airport (RIC) on November 24th

How do I get from University of Virginia to Richmond Airport (RIC) on November 24th?
I am a student with limited money. I have a ticket for Chicago from the Richmond Airport (RIC) on November 24th in the evening. Without catching a ride from acquaintances, how do I get to RIC quickly, with the least stress, to make my 7:30 PM flight? Do you recommend taking Greyhound from Charlottesville and then taking a taxi to RIC from the Richmond Greyhound station? Or another way? Please be very specific, as I'm already getting nervous. Thank you.
Washington, D.C. - 1 Answers
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Greyhound Bus from Charlottesville to Richmond (one way is about $12). Arrive early in the day -- buses sometimes break down. Take a taxi to the airport from the bus station -- it's about 12 miles