US carrier Delta Air Lines has retired its MD-88, also known as Mad Dog, and MD-90 aircraft from US fleet due to the coronavirus (Covid-19) pandemic.

On 2 June, Delta’s MD-88s and MD-90s flew their final scheduled flights. The jets headed to Blytheville, Arkansas, for their retirement.

Discover B2B Marketing That Performs

Combine business intelligence and editorial excellence to reach engaged professionals across 36 leading media platforms.

Find out more

The final MD-90 flight numbered as DL90 arrived in Atlanta from Houston while the final MD-88 flight, DL88, arrived from Washington-Dulles.

The carrier initially planned to retire the twin-engine MD-88s at the end of this year and the dual engine, medium-range commercial aircraft MD-90 by the end of 2022.

However, the collapse in global passenger operation inflicted by the pandemic has prompted Delta to ground more than 600 planes and retire a number of its older jets early.

These aircraft have served as ‘workhorses’ for Delta’s domestic network. The airline had 47 MD-88s and 29 MD-90s operating as of February.

GlobalData Strategic Intelligence

US Tariffs are shifting - will you react or anticipate?

Don’t let policy changes catch you off guard. Stay proactive with real-time data and expert analysis.

By GlobalData

With this announcement, Delta became the last US airline to operate the planes.

US carrier American Airlines retired its MD-80 fleet last September.

Last month, Delta revealed plans to retire its Boeing 777 fleet by the end of the year as part of its cost reduction measures.

In April, the carrier announced system capacity reductions by 85%, including domestic capacity by 80% and international by 90% for the June quarter due to Covid-19 challenges.

Airport Technology Excellence Awards - Nominations Closed

Nominations are now closed for the Airport Technology Excellence Awards. A big thanks to all the organisations that entered – your response has been outstanding, showcasing exceptional innovation, leadership, and impact.

Excellence in Action
OPS1 by TADERA has won the 2025 Product Launch Award in the Safety and Efficiency category for transforming how airports manage operations and safety. Learn how this integrated, GIS driven platform simplifies inspections, maintenance, and SMS compliance while turning operational data into real time, actionable intelligence.

Discover the Impact