usa flight speed limits
Speed Limits: In the United States â Mach 1 10,000 feet msl or above â Unrestricted (but not more than Mach 1) Below 10,000 feet msl â 250 kias Class B airspace â Unrestricted at or above 10,000 feet msl, 250 kias below 10,000 feet msl Beneath Class B or in VFR corridor through Class B â 200 kias Procedure turn â 200 kias