The confluence of two holidays, Father’s Day and Juneteenth, and a season of “revenge travel” continued to heap pressure on the already stretched airline industry as 4,200 additional US flights were delayed and 900 canceled on Sunday, pushing the total number of flights interrupted since Thursday to 19,000.Delta was hit hardest, with 6% of its total flights on Sunday cancelled.
A further 200 flights were cancelled early Monday.The travel conditions have been blamed on pilot and staff shortages, packed planes and the logistical effects of bad weather.
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