Some passengers, who booked premium economy seats on Singapore Airlines flights between Sept 9 and Jan 29 next year, may not be able to get these seats.
This is due to delays of the installation of these seats on the Airbus A380 fleet, said the airline in a statement on Thursday.
"Singapore Airlines is working to complete the installation programme as quickly as possible," it said.
"Customers with ticketed bookings who are affected by the delays will be contacted progressively by Singapore Airlines or travel agents to offer alternative travel arrangements."
Flights affected include those to New York, Sydney, New Delhi, and Tokyo.
The airline first started offering premium economy seats in May, with the first flights to have these seats starting in August.
These seats cost more but come with more spacious seats with better recline.
On the ground, passengers who book seats in premium economy also get priority check-in and baggage handling.
(The Straits Times)