New Delhi, April 19 -- Indian airlines' flight operations to Dubai have been impacted, with Air India, Air India Express and SpiceJet either cancelling or rescheduling their services due to restrictions at the busy airport in the Emirates.

There is substantial air traffic between India and the UAE, especially Dubai, which is also one of the world's busiest airports.

While Air India on Friday cancelled all its flights to and from Dubai, citing "continued operational disruptions at the airport", Air India Express and IndiGo have cancelled some of their services.

Sources in the know said that Dubai airport has issued a NOTAM (Notice To Airmen), restricting operations of flights by non-UAE operators till April 21 morning.

Non-UAE operator...