It's the first working day of a revised timetable on rail services across Yorkshire and Lincolnshire, with passengers seeing 50 new trains run by Northern.
In October, fewer than half of operator Northern's services ran on time, the firm's figures showed.
Northern said the changes would focus on "reliability and stability" and add to the services each week.
Passengers have been advised to check before they travel as changes are introduced to the timetables.
Northern cancellations were at their highest level in October since July and August.
A spokesman for Northern apologised at the time and and blamed "extreme weather" and rail infrastructure.
Between 15 September and 12 October, Northern's figures showed 53.5% of Northern trains were on time, compared to 62.7% of services across the country.