With state agreement, the final International ran eastbound on April 22, 2004, and westbound the next day (along with a Port Huron eastbound on the International schedule). On April 24, 2004, the Port Huron-Chicago Blue Water began operation. Via retained a single daily Toronto-Sarnia round trip that was merged into its Corridor service, but a planned Port Huron-Sarnia bus was never implemented.
Following agreement with the state, the International's last journey took place on April 22, 2004, heading east and then west the next day (alongside another route from Port Huron). The following day, April 24, 2004, saw the launch of the Port Huron-Chicago Blue Water service. Via continued to operate a single daily Toronto-Sarnia trip that was later incorporated into its Corridor network, but a proposed Port Huron-Sarnia bus never materialized.