Aer Lingus has pulled its proposed summer 2017 service from Dublin to Porto due to poor take-up.
"The Dublin-Porto service will no longer operate this summer as planned," the airline confirmed to independent.ie Travel today.
"This is due to insufficient demand to sustain the route," it added, apologising to customers for any inconvenience caused.
Guests that have already booked flights to Porto with Aer Lingus can rebook on an alternative service or request a refund.
Aer Lingus announced the Porto service along with new routes to Miami and Split, Croatia, with much fanfare last November 15.
Two weeks later, Ryanair announced a doubling of its Dublin-Porto service for summer 2017, with five flights weekly.
Ryanair currently operates two Dublin-Porto flights a week, and this evening announced a flash sale on the route for April and May.
The €29.99 "rescue" fares can be booked until midnight, Thursday.
Ryanair’s Robin Kiely said: “Irish customers and visitors can continue to enjoy the lowest fares between Dublin and Porto thanks to Ryanair’s five-times weekly service, which is attracting huge demand."
Despite scrapping its Porto service, Aer Lingus plans to operate its largest ever transatlantic schedule this summer, and has added significantly to its European capacity at both Dublin and Cork airports.
This story has been updated.