Sabi ng google maps, minimum 9 hours daw, approx 380 km...
That computes to an average speed of about 42 km/h. Looks believable I guess..
yup, 9 hours quezon city to sagada via baguio. non-stop yan walang rest. that is assuming naiwasan mo ang traffic sa baguio. add an additional 2-3 hours for eating, gas station and comfort room stops.