Investor Presentaiton

Competitive Cost Base Ex-Fuel CASK1 (USC) 9M'23 Network Airlines Average 7.8 USC We have one of the lowest ex-fuel unit costs among our peers ■9M'23 9M'19 7.2 7.2 -35% 7.0 6.1 5.4 5.2 5.0 4.7 4.7 8.4 7.1 74 9.9 9.6 9.3 (9M'23 vs. 9M'19) Turkish Airlines Singapore IAG AF-KLM American Delta Lufthansa G. Passenger Capacity (ASK¹) +25% -13% -5% -7% -3% -3% -18% Number of Aircraft +25% -3% 4% -1% -3% 2% Number of Personnel +41% -16% 4% -10% 1% -5% -6% -15% During the pandemic, we continued to invest in our fleet and workforce while preserving our unit cost advantage. TURKISH AIRLINES A STAR ALLIANCE MEMBER 1 Ex-fuel CASK: Total Costs Excluding Fuel/Available Seat Kilometers (ASK). Source: Company reports. Doing so, allowed us to capitalize on surging passenger demand and capture significant market share profitably. 16

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