Here's a video from the Vancouver International Airport YVR of two regional jets seen taking off. Both are operating flights for Delta Airlines. The first jet, an Embraer ERJ170LR N751CZ of Compass Airlines is taking off and flying to the Los Angeles International Airport LAX. The second aircraft, a Bombardier CRJ700 N631SK of Skywest Airlines, is heading down to the Seattle International Airport SEATAC.