Just seen changes for the 309 & 310 from 24th March on Traveline North East.
Monday to Saturday journeys will become standalone with slight timing changes during late evening after 2200.
Sunday daytime journeys still interworking but times swapped by 15 minutes so the 310 will depart Haymarket at xx:15 & xx:45 with the 309 departing at xx:00 & xx:30. 310 will arrive into Haymarket at xx:25 & xx:55 with 309 arriving at xx:10 & xx:40
RE: Go North East: Upcoming Service Changes v2