At 26000' in a standard atmosphere, 340kCAS = 490 knots True Air Speed, which is the absolute maximum permitted speed of a Boeing 737. 490 kTAS = 564mph or 907km/hr (using a generic Speed Unit Converter.) But you asked about the cruise speed.
Also question is, what is the landing speed of a 737?
RE: 737-800 Landing Speed?#10937427. At max landing weight (144,000 pounds for our -800s), the flaps 30 (degrees) Vref is 150. We usually add 5 knots to that to produce a "target speed" of 155 knots.
What is the landing speed of a 747?
Speeds vary according to performance, environmental conditions and weight but typically a fully loaded 747 on a normal long haul flight would take off from a typical length runway at around 160 knots which is 184 mph. A typical fully loaded 747 would be landing at around 25,0000kgs.
What is the takeoff speed of a plane?
Typical takeoff air speeds for jetliners are in the 130–155 knot range (150–180 mph, 240–285 km/h). Light aircraft, such as a Cessna 150, take off at around 55 knots (63 mph, 100 km/h). Ultralights have even lower takeoff speeds.