Tourist bus from Kathmandu takes about 7-8 hours to reach Pokhara and costs you from 10 to 25 USD depending on services like AC and wifi. A private car or jeep from Kathmandu to Pokhara costs around 150 USD shared with a maximum of 4 people. A domestic flight will take you to Pokhara from Kathmandu in about 25 minutes and costs 125 USD (for non-Nepalese travellers).