Most of the passenger planes in the world are not renowned for their speeds. When comparing them to jet fighters, these aircraft are like snails. However, this does not mean that these aircraft should be completely ignored in their power and speed. A majority of passenger planes range in between speeds of 500 to 700 miles per hour, some airlines have unique airliners that can go well beyond this speed range.

From https://crewdaily.com/fastest-passenger-airplanes-in-the-world/

• Bombardier Global 6000: – 682 mph. …
• Dassault Falcon: 7X – 690 mph. …
• Airbus A380: 676 mph. …
• Cessna Citation X: 700 mph. …
• Cessna Citation X+: 717 mph. …
• Concorde: 1,354 mph. …
• Boom Supersonic: 1,451 mph. …
• Tupolev TU 144: 1,510 mph.