 The tentative deal came late Sunday night after WestJet and the Aircraft Mechanics Fraternal Association met through the day. The airline says although the strike is over, there will still be flight disruptions in the week ahead as the planes are brought back into service. WestJet President Diederik Pen says the damage to Canadians and to the airline is massive, so a swift resolution was necessary. He says both parties have agreed to arbitration should the union members not ratify the new agreement.