Via Rail says most of its services will be progressively back in operation, including routes between Toronto and Montreal and Toronto and Ottawa as of Tuesday.
Furthermore, it says a train will run from Toronto to Vancouver on Wednesday and return in the opposite direction two days later, on March 6.
The company adds that all current reservations on those segments will be protected and further departures will be announced in the coming days.
Blockades across the country, especially in eastern Ontario, have impacted the passenger rail company's service over the past few weeks.