Ryanair has confirmed it is to axe its morning flight from City of Derry Airport to London from October.
The airline will operate only one evening flight a day from Derry to Stansted.
Ryanair says it has been left with no option because the runway in Derry is not big enough to accommodate its new planes
It says if the problem is not resolved by the spring, it will terminate all services.
Ryanair says Derry City Council, which owns the airport, has been aware of the situation for more than two and half years.