OCTranspo provides public transportation in Ottawa. Cash fare is $3.50. OCTranspo also accepts PRESTO cards.
From the Airport
Taxi cabs queue outside the Arrivals area at the airport. The trip from the airport to the university takes about 15-20 minutes.
Uber or Lyft can also make pickups at the airport. You will need the app(s) to book your ride.
It is possible to take public transportation (OCTranspo) from the airport to the city (#97 - please be sure to ask the driver if they're headed downtown). The trip will take 30-45 minutes.