Well depending on your flight plan the fastest that you could get to Halifax's Robert Stanfield International Airport would be approx. 7 hours. That is if the flight you take is direct from Vancouver to Halifax.
The flight times varies according to the speed of the flight. If the flight is flying at a faster speed then the times may change. We are providing you with standard flight timings. The flight time for the above mentioned trip is.7hours26 mins
Guadalajara is 3627.50 Km (2254.09 mi) south of Vancouver. Driving at some 80 km/h (50 mi/h) it would take you no less than 45 hours of non-stop driving. If you are planning for a long vacation, you would see the whole US Pacific Coast and half of Mexico's. Otherwise, get on a plane :)