Hesitant to jog or run for long distances? Consider building up to that point by interval training, starting by walking at a quicker than normal pace, then speeding it up to a light jog. Try and spend between 2-5 minutes doing each, and after a while your endurance will increase along with your strength and you may just start jogging the whole distance.
That's awesome that your body can handle running at intervals-I wish I could (a back injury keeps that a very distant possibility for me). For other members, once you build up that stamina, you could definitely take Swati suggestion of running at varied speed.