The route was introduced as part of Northern's new timetables which are designed to give customers a more reliable and stable service across the entire network.
Steve Hopkinson, Regional Director at Northern, said: “I’m delighted to have been able to introduce this new service which provides a great link between two of Yorkshire's iconic locations - and all points in between.
“We are determined to give our customers greater flexibility and better connectivity and this new service provides fantastic journey opportunities across the breadth of Yorkshire.”
To celebrate the new service Northern was joined by local councillors and the business community at Hull Paragon Station to wave-off one of Northern's Class 158 trains as it headed off to Halifax.
Steve added: “The launch event shows not only how important this service is for our customer, but also the support it has from the local community.
“The improved links will provide new commuting and leisure opportunities which will help contribute to economic development at all points on the route.”
The new service, one of more than 2,000 additional services Northern has introduced each week since 2016, forms part of the operator’s plans to improve and modernise its network. To date, Northern has introduced 52 brand new trains – with a further 49 still to come in 2020 as part of a £500m investment – is refurbishing the existing fleet of trains, and is making improvements at all stations.