India, Dec. 18 -- Amid dense fog and low visibility in Delhi and most parts of North India this morning, several airlines, including SpiceJet, Air India and IndiGo, released travel advisories, urging passengers to check the status of their flights beforehand.

Taking to their official X handle, SpiceJet informed the passengers that all departures, arrivals and their consequent flights may be affected due to the dense fog in Delhi. It further advised passengers to check their flight status through the official website.

Air India also released an advisory citing potential poor visibility in the next few days. It said that this could impact the airline's primary hub in Delhi and a few other airports in northern, eastern India and some other...