The road distance is about 660 kilometres, and most bus journeys take roughly 8 to 10 hours once rest stops and traffic are included. Overnight services may feel faster because much of the trip is spent sleeping.
Services commonly leave from Tehran's East Passenger Terminal. Because the East Terminal has changed location, use the full address shown on your current ticket and do not automatically go to the former Tehranpars terminal.
The normal endpoint is Sabzevar's intercity passenger terminal. Ask the driver or company desk before departure if you need a particular approved stop, and plan a taxi from the terminal to your hotel or city-centre address.
Only when Sabzevar appears as an official bookable stop and the operator confirms where passengers are dropped. A through bus may bypass the city terminal, so a ticket specifically issued to Sabzevar is the more reliable choice.
For an 8-to-10-hour trip, a VIP seat is usually worthwhile if you value extra legroom and a deeper recline. Compare the actual bus type and seat layout at booking rather than assuming every service has the same facilities.
Long-distance services normally include at least one rest stop, but the place and timing are not fixed. Carry water and a small snack, and use the facilities when the driver announces a stop because the next break may be several hours away.
Not unless those cities are included in the service you booked. A Tehran–Sabzevar ticket ends in Sabzevar; book a separate onward bus and leave a generous connection window for possible road delays.
Bring a warm layer for strong bus air-conditioning and the cooler desert night, even in summer. Sabzevar can be hot and dry by day, so keep water, lip balm and sun protection accessible for arrival.
Demand rises around Nowruz, religious holidays, university travel periods and busy dates on the Mashhad corridor. Book early and reserve your return seat as well if your schedule is not flexible.