OREANDA-NEWS. Delta Air Lines (NYSE: DAL) is offering customers whose flight plans may be affected by forecast thunderstorms in the U.S. Northeast region the ability to make one-time changes to their travel schedules without incurring fees. Delta encourages customers to consider departing earlier, postponing or re-routing their travel to avoid possible inconvenience from expected flight delays and cancellations.

Customers booked on Delta-ticketed flights to, from or through the following airports on June 27 and 28 may rebook for travel with the same origin and destination. New flights may occur before or after original travel dates as long as they are ticketed and rescheduled for travel on or before July 4:

John F. Kennedy International Airport

Newark Liberty International Airport

New York's LaGuardia Airport

Philadelphia International Airport

Stewart International Airport (Newburgh, N.Y.)

Westchester County Airport (White Plains, N.Y.)

Flight delays are likely at airports in locations listed above as a result of forecast thunderstorms and anticipated air traffic control constraints. Delta will proactively reduce flight schedules to minimize delays.

Delta encourages customers to make changes and manage their travel at delta.com and using the Fly Delta app. All customers traveling in impacted markets should check their flight status via delta.com or the Fly Delta app before arriving at the airport. Customer service via @DeltaAssist on Twitter is also available 24 hours a day

Changes to origin or destination may result in a fare increase, and any fare difference between the original ticket and the new ticket will be collected at the time of rebooking. Customers whose flights are cancelled may request refunds.