Getting around North Korea is not something you do independently. Your guides decide where you go, when you go, and how long you stay. This is not a constraint that loosens with charm or persistence — it is how the system works, and understanding that early makes the trip considerably more enjoyable.
Within Pyongyang, most tour groups travel by coach. The city has an impressive Soviet-era metro system — two lines, deep underground, with stations decorated like palace halls — and a ride on it is usually included in standard itineraries. Taxis exist but are essentially unavailable to tourists without guide arrangement.
Between cities, the options are coach, train, or domestic flights on Air Koryo. The Beijing–Pyongyang train journey (about 24 hours) is a classic way to enter or exit the country, passing through the Chinese border city of Dandong. Domestic trains are slow and infrequent. Domestic flights on Air Koryo's aging Soviet-era fleet are occasionally available for longer hops to places like Wonsan.
If your itinerary includes a site outside Pyongyang — Kaesong, Myohyangsan, Wonsan, the DMZ — you will almost certainly travel by dedicated tour bus, windows often curtained when passing through areas not on the approved itinerary.