It comes as British travellers have been warned they face similar disruption this summer with cancellations and delays expected.
A flight delays crisis is rocking some of the world’s best-known airlines, with the latest flight tracking data shining a light on just how fragile flight schedules can be.
According to flight tracking data company FlightAware, a combination of operational setbacks resulted in a state of air travel paralysis for Australia and New Zealand on Sunday (May 3), with an eye-watering 317 flight delays and 24 cancellations recorded in one day alone.
Both major and minor travel hubs in the trans-Tasman region suffered disruptions, with some suffering from extreme congestion while others saw total grounding of specific routes – which is bad news for any Brits travelling in the Southern Hemisphere right now.
Essentially, the data tells us that if you’re travelling with virtually any airline in Australia or Zealand, it might be wise to have some paracetamol on hand as travel-induced headaches are likely.
Major airlines like Qantas, Jetstar, and Air New Zealand bore the brunt of the volume of delays and cancellations on Sunday, but smaller regional airliners in Australia and New Zealand – like Sounds Air – saw a higher percentage of cancellations, with up to 14% in some states across the trans-Tasman region.
The report highlights that while the aviation industry in this region is typically efficient, the scale of these interruptions exposed logistical vulnerabilities. The impact was felt by all traveller demographics, from major metropolitan centres to smaller regional runways.
Travel disruption comes amid mounting concerns surrounding air travel as a result of the ongoing Middle East conflict and rising fuel costs, with the grim Antipodean update coming shortly after as major US airline Delta Air Lines cancelled hundreds of services over a 48-hour period.
Delta faced major operational disruption between Friday and Saturday, with more than 400 cancellations and over 1,000 delays. That amounts to around 4 per cent of its schedule on Friday and around 7 per cent on Saturday, according to data from FlightAware.
The airline blamed the disruption on staffing shortages, unpredictable weather and the looming jet fuel shortage. Major hubs including Hartsfield-Jackson Atlanta International Airport and Los Angeles International Airport were affected. Delta’s reliability ranking subsequently fell to sixth place nationwide, according to figures from the US Department of Transportation.
Pilot staffing shortages at Hartsfield-Jackson, the airline’s main hub and headquarters, have driven cancellations to more than 10 times the usual level, accounting for around 35 per cent of all cancelled flights – almost four times higher than in 2024, the Express reports.
It comes after US budget carrier Spirit Airlines operated its final flight on Saturday , bringing an end to 34 years in business. Once valued at around $5.5 billion on the stock market, the airline announced it had shut down after its final flight departed from Detroit and landed safely in Dallas.
“For more than 30 years, Spirit Airlines has played a pioneering role in making travel more accessible and bringing people together while driving affordability across the industry,” CEO Dave Davis said in a statement. “This is tremendously disappointing and not the outcome any of us wanted.”
Plans for the bankrupt airline to emerge from Chapter 11 bankruptcy by early summer were thrown into doubt by volatile oil and jet fuel prices, which more than doubled in the weeks after the Iran war began with US-Israeli strikes on February 28.
Analysts at JPMorgan warned in April that the airline’s costs could rise by about $360 million if fuel prices remain high for the rest of the year. The airline had around $337 million in cash at the end of last year, they added.

