Twelve to Eighteen-hour flights around the world are the current speed of global travel. If there are connections into smaller cities or rural areas then two or three-day travel times with connections may be required. It can also take one to three-hours for driving or public transit commutes inside large cities.
This should dramatically change by 2030 with more self-driving cars. Self-driving and networked vehicles should eliminate traffic jams. When nearly all rides are made with self-driving cars, self-driving buses, self-driving trucks and robo-taxis then the speed can be safely increased to 150 mph for major highways. The German Autobahn already has driving speeds of 90-110 mph.