The speed of lightning

While the flashes we see as a result of a lightning strike travel at the speed of light (670,000,000 mph) an actual lightning strike travels at a comparatively gentle 270,000 mph. This means it would take about 55 minutes to travel to the moon, or around 1.5 seconds to get from London to Bristol.

How fast is lightning in seconds?

Lightning travels at the speed of light, about 186,000 miles per second.

Are lightning bolts faster than sound?

Thunder and lightning occur at roughly the same time although you see the flash of lightning before you hear the thunder. This is because light travels much faster than sound.