Indian Airlines Flight 440 was a flight on 31 May 1973 that crashed while on approach to Palam Airport (now Indira Gandhi International Airport) killing 48 of the 65 passengers and crew on board.

As Flight 440 approached Palam International Airport in driving dust and a rainstorm, the aircraft struck high tension wires during a NDB approach with visibility below minimal.

Notable survivors included Bhan Singh Bhaura Member Parliament and V. K. Madhavan Kutty, an eminent journalist and writer.

[3] Among the dead was Indian Minister of Iron and Steel Mines, Mohan Kumaramangalam, Member of Parliament, Lok Sabha and Communist Party of India politician K. Baladhandayutham and former Member of Parliament, Rajya Sabha and Indian National Congress politician Devaki Gopidas and Indian businessman Raghunatha Reddy Kakani.

Investigators determined the Indian Airlines Flight 440 crash was caused by the crew descending below the minimum decision height.