Delta Adding Two Routes in 2026

Delta is slated to bolster its network early next year with the addition of more routes. These flights will begin in late December and early January.

Ryan Ewing

Monday, May 12, 2025 at 12:50 PM ET

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Ryan Ewing

A Delta 737-800 in Los Angeles. (Photo: AirlineGeeks | William Derrickson)

Key Takeaways:

Delta is slated to bolster its network early next year with the addition of more routes.

According to Cirium Diio schedule data, the airline will resume flights between New York-JFK and Grand Cayman, along with Detroit and Liberia, Costa Rica. These routes will begin in December and January, respectively.

Service from New York to Grand Cayman will start on Dec. 3, operating once per week on Saturdays. The airline will deploy a Boeing 737-800 in this market.

Starting on Jan. 10, Delta will link Detroit and Liberia with once-weekly flights on Saturdays. This service will be operated by a Boeing 737-900ER.

The airline last served the New York-to-Grand Cayman route in 2016. Detroit to Liberia was last flown by the airline in 2002, per Enilria.

Ryan Ewing

Ryan founded AirlineGeeks.com in February 2013 and has spent more than a decade covering the airline business. His work has been featured by CNN, WJLA, CNET, and Business Insider. His aviation experience spans airport operations, Part 135 regulatory compliance, and airline crew workforce planning, along with time behind the yoke of a Cessna 172 and interviews with airline executives. Ryan now serves as Group President of Firecrown Media’s Aviation Group. He holds a B.S. in Air Transportation Management and an MBA from Arizona State University and teaches Airline Management at Embry-Riddle Aeronautical University.