By Nathalie Voit

JetBlue is offering flight attendants $1,000 attendance bonuses for showing up to work between April 8 and May 31, according to a company memo seen by CNBC.

The news comes amid ongoing staffing shortages that have disrupted normal flight operations. The air carrier canceled more than 300 flights over the weekend just one week after understaffing issues and bad weather in Florida resulted in hundreds of flight delays and cancellations, according to flight-tracking service FlightAware.

To ensure adequate staffing levels and avoid a repeat of last year’s problems, JetBlue, the nation’s sixth-largest airline, is also trimming its summer schedule to prevent further disruptions.

“We’ve already reduced May capacity 8-10% and you can expect to see a similar size capacity pull for the remainder of the summer,” said JetBlue’s COO and president Joanna Geraghty in an email to staff on April 9, according to CNBC.

“We know the best plan is to reduce capacity now,” she said. “I think everyone recognizes that the industry still remains very much in recovery mode, so we believe this proactive step is the right decision.”

Along with the $1,000 financial incentive, the airline is also dangling $100 bonuses for flight attendants who pick up open trips. JetBlue said that part-time flight attendants are also eligible for a $500 perfect-attendance bonus.

“The spring rewards programs comes at a time where every flight makes a difference as hours are tight and staffing levels are not where they need to be,” JetBlue’s head of customer care and programs, Ed Baklor, wrote in a memo on Friday, which was confirmed by CNBC.

Geraghty said JetBlue will “continue to moderate capacity as needed.” The COO said the airline had hired over 2,500 personnel so far this year to deal with the shortages but continues to remain understaffed.

The incentive program comes days after JetBlue unexpectedly made a $3.6 billion all-cash bid to acquire low-fare carrier Spirit Airlines.

Spirit said it had received the unsolicited proposal and was working with its financial and legal advisors to evaluate the offer and “pursue the course of action it determines to be in the best interests of Spirit and its stockholders,” according to a company press release.