Thai Airways will delay the use of its Airbus A380 aircraft on the Paris route until 31 March 2013.
The Star Alliance member was originally scheduled to begin daily A380 services to Paris on 16 February 2013.
Thai, which has a 10 times weekly Boeing 777-300 service to Paris and plans to replace some of them with the A380, did not give a reason for the delay.
A spokeswoman did confirm that A380 services to Osaka and Sydney, which were scheduled to begin on 16 August and 16 September 2013 respectively, have been delayed as a result of changes in the delivery schedule of the airline's fifth and sixth aircraft.
Thai's president Sorajak Kasemsuvan told Flightglobal Pro earlier in November that the last of the airline's six A380s could replace its Airbus A340-600s on services to London. The airline has a twice daily Bangkok-London Heathrow service.