Delta Pilots March Through Atlanta Airport

More than 250 Delta Air lines pilots marched through Atlanta’s airport Thursday to vent anger over the company's effort to throw out their contract.

The union says airline service will not be interrupted during the demonstration, which is intended to show pilot solidarity in face of delta's threat to reject its pilot’s contract and impose more than $300 million in wage and benefit cuts.

A federal arbitration panel is expected to rule by April 15 on the carrier's request to reject its pilot contract so it can impose the cuts unilaterally.

The pilots union has said it will strike if its contract is voided.

The head of the pilot union's executive committee, Lee Moak, said Thursday's demonstration could be considered a practice for the real thing.