Istanbul Sabiha Gökçen International Airport (SAW), the city's secondary gateway on the Anatolian side of the Bosphorus, has solidified its position as the primary operating hub for two of Turkey's fastest-growing low-cost carriers: Pegasus Airlines and AJet. Pegasus has long treated SAW as its home base, building a domestic and international network anchored there, while AJet—the low-cost subsidiary spun off from Turkish Airlines—has increasingly concentrated growth at the same airport rather than at Istanbul Airport (IST), where its parent mainline operation is based. The consolidation of two major LCCs at a single secondary airport creates a distinctive competitive and operational dynamic in one of Europe's busiest aviation markets, positioning SAW as a genuine low-cost counterweight to the flagship IST hub used by Turkish Airlines' full-service operation and other legacy carriers.
For working pilots and flight operations personnel, this arrangement carries meaningful implications. SAW operates under different infrastructure constraints than IST—shorter runway configurations relative to the newer mega-hub, different noise abatement and curfew considerations, and a terminal/apron footprint originally sized for a fraction of today's traffic. As Pegasus and AJet both scale up frequencies from the same airfield, pilots flying into and out of SAW can expect increased taxi and sequencing complexity, tighter slot discipline, and greater sensitivity to weather or ATC delays cascading across two carriers' schedules simultaneously. Crew based at SAW, whether flying for Pegasus or AJet, also face a shared operating environment where ramp congestion, ground handling turnaround times, and gate availability become shared risk factors rather than isolated to a single operator—something dispatchers and crew scheduling teams must account for when building resilient rosters and fuel/alternate planning.
The broader significance lies in what this signals about the evolution of low-cost aviation strategy in Turkey and the wider Europe-Middle East corridor. AJet's decision to grow substantially at SAW rather than solely at IST reflects a common pattern among legacy carriers launching LCC subsidiaries: separating cost structures, labor agreements, and turnaround philosophies from the mainline brand often works best when physically decoupled from the flagship hub. This mirrors strategies seen elsewhere in the industry, such as how full-service groups have positioned budget offshoots at secondary fields to preserve slot capacity and premium positioning at their primary hub while still capturing price-sensitive traffic growth. Turkey's aviation market, buoyed by strong domestic demand, VFR traffic, and its geographic position bridging Europe, the Caucasus, and the Middle East, has made this dual-hub, dual-brand approach commercially attractive.
For airline management and aviation planners, SAW's emergence as a two-carrier LCC hub underscores the growing importance of secondary airport capacity in mature but congested metro markets—a trend also visible in London (Stansted/Luton), Milan (Bergamo), and other cities where primary hubs have reached practical capacity ceilings. Pilots and operators tracking Turkish airspace should anticipate continued frequency growth at SAW, potential infrastructure investment to accommodate rising movements, and ongoing competitive pressure between Pegasus and AJet that could influence route allocation, fare competition, and eventually slot availability at the airport. As both carriers expand their networks into Europe, North Africa, and Central Asia from the same base, SAW's role as a genuine low-cost hub—rather than a mere overflow airport—appears increasingly entrenched.