On May 1, 1995, under the Canada-US Open Skies agreement, Northwest Airlines began service to Minneapolis–Saint Paul. United Express then began non-stop service to Chicago O'Hare and Denver. In 1996 WestJet began Boeing 737-200 service. Air Canada, which began scheduled service to Regina in early 1939, ended mainline service into Regina and six other medium-sized Canadian cities in October 2005, turning over these routes to its subsidiary Air Canada Jazz and its fleet of Canadair Regional Jets (CRJ). Mainline service to Toronto returned on November 2, 2008 using the Embraer E-190 aircraft. In the summer of 2010, Air Canada Jazz introduced summer seasonal service between Regina and Ottawa using the CRJ-705 aircraft, as well late in 2013 WestJet Encore has started service to Calgary using the Dash 8 Q400 aircraft. Since then, Edmonton and Winnipeg have been added to WestJet's Encore network out of Regina. Starting in the 2014 summer season, WestJet has also added two weekly flights to Las Vegas, one flight on Wednesday, and the other being on Saturday.