Türkiye has opened a fourth main runway at Istanbul Airport, with officials saying the new facility will reduce aircraft taxiing and airborne times while helping airlines save fuel.
President Recep Tayyip Erdoğan inaugurated the east-west runway on Friday, describing it as the airport’s first runway operating in that direction. The project involved an investment of €890 million, or more than $1 billion.
Istanbul Airport previously had three main and two reserve runways, all oriented north-south. The new facility brings the total number of runways to six, including four main runways.
The airport is ultimately planned to have nine runways, comprising six main and three reserve runways.
The new runway measures 2,820 metres in length and 45 metres in width. Its east-west orientation will allow aircraft to depart directly in that direction, reducing the need for additional manoeuvres after takeoff.
Erdoğan said the new configuration is expected to reduce taxiing and airborne times, generating savings in fuel and time. Its proximity to hangar facilities is also expected to support faster general aviation operations and reduce taxiing and waiting times on domestic and eastbound routes.
He added that the project would contribute to lower emissions while improving operational flexibility, takeoff and landing safety and on-time departure performance, including during adverse weather conditions.
Initially, the new runway will be used only for takeoffs. Transport and Infrastructure Minister Abdulkadir Uraloğlu said it would particularly serve flights to Anatolia, Central Asia and the Arabian Peninsula.
Authorities also plan to introduce simultaneous four-runway operations at Istanbul Airport in the future. The airport began independent simultaneous triple-parallel runway operations in April 2025, becoming the first airport in Europe to do so.
Located along the Black Sea coast, Istanbul Airport became fully operational in April 2019 and has since developed into a major international transit hub.
Erdoğan called the airport one of the most ambitious infrastructure projects undertaken in Istanbul, saying it had strengthened Türkiye’s global brand.
According to a report by global travel intelligence provider OAG released Wednesday, Istanbul has overtaken London Heathrow as the world’s most internationally connected airport, with potential links to 337 destinations worldwide. Turkish Airlines operates around 80% of flights at the airport.
Istanbul Airport has also recently overtaken Heathrow as Europe’s busiest airport by passenger numbers.
The airport currently has an annual capacity of 90 million passengers, with its full development plan designed to eventually accommodate up to 200 million passengers a year.
Istanbul Airport handled a record 84.5 million passengers in 2025, ranking as Europe’s second-busiest airport after Heathrow and the eighth-busiest worldwide. It is targeting 90 million passengers this year.
Erdoğan said the airport handled 8.15 million passengers in July, making it Europe’s busiest aviation hub that month. On August 16, it recorded a daily passenger record for both Türkiye and Europe with 291,000 passengers. On August 30, the airport also set a new daily flight record with 1,787 movements.
Source: Daily Sabah