With Delta and WestJet eyeing joint venture, are United and Air Canada next?: Travel Weekly

Approval of a Delta-WestJet joint venture could spur Air Canada and United to begin taking advantage of antitrust immunity they've had since 1997.  

Phased Out: U.S. Airlines Look to the Past, Future - Airline Weekly

WestJet, Canada's second-largest airline, will be taken private

Experts say Air Canada is too dominant in the East for WestJet to

WestJet and Delta joint venture. What's the impact? - Travelweek

Bold: Mexicana Will Launch Flights With 737-300 - Live and Let's Fly

U.S. government approves alliance between WestJet and Delta, with

WestJet Adds Seattle To Route Network

Delta Hints At New Asia Flight From Salt Lake City Hub - Live and

North America, FlightGlobal

United and Air Canada will try again for transborder joint venture