How do pilots land the planes during fog conditions?

The same principle is applied when using the ILS, except the autopilot can land the plane all by itself. Aircraft such as the Boeing 737 NG have the Heads Up Display (HUD), which can be used to land the airplane in bad conditions. read more

Airlines such as Southwest will only have pilots use the HUD to manually fly the plane in fog conditions, not auto land. This all depends on how the airline wants pilots to operate their aircraft. ILS approaches are categorized into a few areas. read more

Otherwise pilots train to fly in low-visibility conditions and mitigate the problems caused by fog. Q: We were recently stuck at the airport in San Diego due to fog. Planes were unable to land due to the fog and diverted to Ontario to refuel and wait for conditions to clear. read more

It's also the case that planes cannot fly as close to one another in fog as they do on a clear day - a nice clear day means they can see one another - fog means they can't see one another. If you can't bring the planes as close to one another as usual it means the number of planes that can land on a runway is reduced. read more

Pilots are trained to fly in low-visibility conditions and mitigate problems caused by fog. read more