UA Flight 82 had been canceled on Friday and Saturday, data from flight tracking website FlightRadar24 showed, while the airline's website said it had waiver policies in place for passengers traveling to, from or through Delhi until Monday.
With the deteriorating air pollution showing no signs of abating in Delhi and the national capital region (NCR), the Supreme Court on Monday sought a response from the Centre and Uttar Pradesh, Haryana and Punjab state governments on a petition seeking to combat rising pollution levels.
Meanwhile, after a brief let-up, the pollution levels skyrocketed in Delhi with the air quality becoming hazardous, which environmental agencies consider unfit for inhalation even by healthy people. The level of PM2.5 was also down in comparison to last week, with the 24-hour average at 9 p.m. being 337 micrograms per cubic metre, which was over five times the standard of 60.More news: 'Good chance' Martellus Bennett plays Sunday night for Patriots
"Due to smog and pollution in Delhi and the National Capital Region (NCR), including Gurgaon, we have chose to close all private and government schools on November 13", District Magistrate Vinay Pratap Singh said.
Children, wearing masks as protection against smog and air pollution, wait for their school bus in New Delhi on Monday.
United Airlines said it had resumed flights from Newark, New Jersey to New Delhi, India on Sunday, after suspending the service temporarily over concerns about poor air quality in the Indian capital.
Dense smog has continued to engulf Delhi-NCR for the past few days, forcing authorities to take up effective measures.