Delta offers free rebooking ahead of "potentially challenging" July 4 weekend

As flight delays and cancellations surge across the U.S., Delta Air Lines says it will allow customers to rebook trips reserved between July 1 and July 4 without charging fees or ticket price differences. 

Delta officials said they're offering the rebook feature because they expect a high volume of air travel this weekend "not seen since before the pandemic." 

More than 2,500 flights across the U.S. were canceled over the Memorial Day weekend, frustrating passengers during one of the busiest travel times of the year. Airline analysts say delays and cancellations are likely to persist, and could even get worse.