Thai Airways International plans to acquire 15 aircraft from now until 2014 with a budget of 35.5 billion baht ($1.1 billion).

Of the 15 aircraft, eight will have a capacity of 350 seats and will be acquired through operating leases for a period of 10 to 15 years, says the airline.

These eight aircraft will be operated on long-haul routes, it says.

The remaining seven will have a capacity of 300 seats, and will be acquired through financial leases with an investment budget of 31.3 billion baht, adds Thai.

It will operate these aircraft on regional services, it adds.

Thai has yet to decide on the aircraft types, says an airline spokeswoman.

The carrier had previously acquired five Airbus A330-300s, which will start operations this year. Another six Airbus A380s will join the airline's fleet from 2012 to 2013, says Thai.

It has also set a budget of 922 million baht for two engines for aircraft operating on regional routes, and a budget of 3.3 billion baht for three engines for aircraft operating on long-haul routes.

The airline's board approved the acquisition plan at a meeting on 8 February, says the carrier.

Source: Air Transport Intelligence news