As per 16MAR13 GDS timetable and inventory display, latest changes to Turkish Airlines’ Summer 2013 long-haul operation changes as follow.

Istanbul Ataturk – Dar es Salaam eff 30MAY13 Service increases from 5 weekly to daily, 737-900ER operating (Previously to start from 31MAR13)
Istanbul Ataturk – Houston eff 01JUL13 Service increases from 4 weekly (Day x347) to 6 weekly (Day x4; This route begins from 01APR13)
TK033 IST1305 – 1805IAH 77W x4
TK034 IAH1950 – 1555+1IST 77W x4

Istanbul Ataturk – Male – Colombo eff 07JUN13 Airbus A330-200 replaces A340-300, service operates 4 weekly during Summer season
TK730 IST0105 – 1050MLE1205 – 1405CMB 332 x246
TK731 CMB2125 – 2225MLE2340 – 0535+1IST 332 x246

Istanbul Ataturk – Mosul eff 31MAR13 Service increases from 2 to 4 weekly (Operation temporary reduced from 3 to 2 weekly during Winter 2012/13 season)
Istanbul Ataturk – Sao Paulo – Buenos Aires eff 01JUL13 Service increases from 4 weekly (Day x146) to daily
TK015 IST0930 – 1655GRU1830 – 2115EZE 77W D
TK016 EZE2240 – 0130+1GRU0305+1 – 2135+1IST 77W D

Istanbul Ataturk – Seoul Incheon eff 01JUL13 Daily service switches from Airbus A340-300 to Boeing 777-300ER
TK090 IST0045 – 1655ICN 77W D
TK091 ICN2350 – 0545+1IST 77W D

Previously reported changes include:
Istanbul Ataturk – Aqaba eff 03APR13 NEW 3 weekly Boeing 737-700 service
Istanbul Ataturk – Dammam eff 31MAR13 Service increases from 5 weekly to daily, A320 operating
Istanbul Ataturk – Dhaka eff 05JUN13 Service increases from 5 weekly to daily, A330-200 operating
Istanbul Ataturk – Guangzhou eff 01MAY13 Service increases from 4 weekly (Day x247) to daily, A340-300 operating
Istanbul Ataturk – Kuala Lumpur eff 25APR13 Service resumes with 3 weekly flights (Day 146), operated by A340-300. Service increases to 4 weekly (Day x257) from 19JUN13
Istanbul Ataturk – Nouakchott – Dakar – Istanbul Ataturk eff 31MAR13 Service increases from 3 to 4 weekly with operational schedule splits to 2 banks
TK593 IST0045 – 0450NKC0540 – 0640DKR0740 – 1740IST 739 36
TK595 IST1345 – 1745NKC1835 – 1935DKR2035 – 0635+1IST 739 47

Istanbul Ataturk – Tehran eff 01APR13 5 of 28 weekly service moves to Istanbul Sabiha Gokcen Airport (1 of 4 daily operates to/from Sabiha Gokcen from 02JUN13)
Istanbul Ataturk – Tel Aviv eff 02APR13 Service increases from 32 to 35 weekly (39 weekly from 22APR13)
Istanbul Sabiha Gokcen – Kuwait City eff 31MAR13 NEW 5 weekly service (daily from 04JUN13; overall Istanbul – Kuwait service increases to 28 weekly)

Turkish Airlines' 2012 operating profit almost triples; 2013 more doubtful, with 20% seat growth

In 2012, Turkish Airlines saw its operating profit grow almost threefold, with revenues up 26% on passenger capacity growth of 18%. It has the youngest fleet of any significant network carrier in Europe and its 7.0% operating margin puts it behind only Ryanair and easyJet. This financial success is built on one of Europe’s most efficient cost structures and a very productive work force. THY’s fleet of 211 aircraft will be expanded by the recently announced order for 117 Airbus narrow bodies to add to existing orders for narrow and wide bodies from both Boeing and Airbus.

In 2013, Turkish Airlines plans a further 20% capacity increase in pursuit of its expansion strategy based on increasing transfer traffic and is seeing particularly strong growth on routes to Latin American and Africa this year. It does not expect a unit revenue increase, so CEO Temel Kotil will need to engineer a fall in unit costs if profits are to continue to climb. This will not be easy, given likely fuel cost increases and that 2012 was the only year to see a fall in ex fuel unit costs since 2007.....

Turkish Airlines from 01SEP13 is launching service to Nepal, offering 4 weekly Istanbul Ataturk – Kathmandu operation, on board Airbus A330-200 aircraft. Planned operational schedule as follow.

TK726 IST2145 – 0715+1KTM 332 x136
TK727 KTM0845 – 1340IST 332 x247