What is the approximate speed at which the ISS travels sideways around the Earth?

Answer

17,500 miles per hour

The station travels sideways around the planet at an immense speed of about 17,500 miles per hour (28,000 km/h), which is necessary for it to perpetually miss the curving surface as it falls.

What is the approximate speed at which the ISS travels sideways around the Earth?
SpaceorbitISSaltitudeKármán line