Hundreds of Australians preparing to reunite with their families for Christmas have experienced disruptions after three major airlines cancelled and rescheduled dozens of flights on Christmas Eve. Australia’s busiest route between Sydney and Melbourne was the most affected as Jetstar and Virgin Australia cancelled 22 flights between the two cities on Dec. 24. Both airlines have also cancelled or rescheduled more than 20 flights between the major cities and Gold Coast, Adelaide, and Brisbane. Meanwhile, a small number of Qantas services were cancelled just due to demand, with all passengers reaccommodated on flights within a short time frame. A Virgin Australia spokesman said the airline had cancelled the flights earlier in the week but all customers had been moved onto alternative flights with no one being left behind. Meanwhile, passengers of Jetstar, a Qantas subsidiary, were only notified as late as 9 p.m. on Dec. 23, when many customers would have …