Negotiators for United Parcel Service and the Independent Pilots Association will resume talks later this month in hopes reaching a contract agreement.
The latest round of federally mediated negotiations ended last week in Washington.
UPS pilots have been working under the terms of their previous contract for five years. The IPA, which represents some 2,500 pilots, has been preparing for the possibility of a strike.
Earlier this month, the union set up a strike operation center at its Louisville headquarters, a move dismissed by UPS as a publicity stunt.
For a strike to be called, the mediator would have to declare an impasse and release the two sides from talks. That would be followed by a 30-day cooling off period.
Union president Bob Travis said the IPA and UPS have been called back to Washington by the National Mediation Board for what he called “two consecutive weeks of intensive negotiations” starting the week of May 16.
Union officials said some of the remaining sticking points involve flight schedules and crew fatigue. Both sides say there was some progress made in the most recent round of talks.