With over 1,500 flight cancellations, US sees one of the worst days for travel yet

Airlines cancelled more than 1,500 flights in the US on Thursday, one of the worst days yet for travel as the peak summer vacation season heats up.

At LaGuardia Airport in New York, more than one-third of all flights were scrubbed, and more than one-fourth of flights were dropped at nearby Newark Liberty airport in New Jersey, according to tracking service FlightAware.

The cancellations came less than three weeks after airlines kicked off the summer travel season by cancelling about 2,800 flights in a five-day stretch around the Memorial Day holiday weekend.