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Passengers at Istanbul’s Sabiha Gokcen International Airport faced long queues, missed connections and uncertain onward travel after a wave of cancellations and delays disrupted more than 130 flights, affecting routes across Türkiye, Germany, the United Kingdom and wider Europe.
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Operational Turbulence at a Key Low Cost Hub
Sabiha Gokcen International Airport on Istanbul’s Asian side has grown into a major base for low cost and hybrid carriers, with Pegasus Airlines and AJet operating dense networks across Europe and the Middle East. Publicly available traffic data for May 12 indicates that the airport experienced a concentrated period of disruption, with four flights cancelled outright and at least 128 departures and arrivals delayed by varying margins. While the number is modest compared with total daily movements, the knock on impact on connections magnified the effect for passengers.
Route trackers and airport schedule aggregators show that the irregular operations covered a mix of domestic and international services. Delays spread across short haul routes into Türkiye and key European markets such as Germany and the UK, as well as to other points in Central and Eastern Europe. Passengers on multi segment itineraries often discovered that a delay of under an hour on departure could eliminate their planned connection, stranding them in Istanbul or at their intermediate stop.
Although no single cause has been clearly identified, aviation monitoring sites and recent consumer discussions point to a blend of factors that have been putting pressure on on time performance at Turkish carriers, ranging from tight turnaround times and crew rostering constraints to regional airspace restrictions that lengthen flight times on some corridors. In such an environment, even localized congestion or minor operational issues can cascade across a day’s schedule.
For Sabiha Gokcen specifically, its role as a fast growing base for low cost operators means it regularly handles high volumes of early morning and late night departures. When disruptions emerge during these peak waves, there are limited spare slots later in the day to re accommodate passengers, particularly on popular European routes that already operate close to capacity during the spring and summer travel period.
Multiple Airlines, Shared Disruption
On the day of disruption, Pegasus Airlines, AJet and services marketed by Turkish Airlines and Kuwait Airways were among those affected, according to online flight status platforms. Pegasus, which accounts for a significant share of Sabiha Gokcen’s traffic, saw a series of departures logged as delayed, with certain routes to Central and Eastern Europe and onward to the Middle East leaving later than scheduled. Low cost competitors using the airport as a transfer point for budget conscious travelers were also caught in the same operational bottlenecks.
While Turkish Airlines concentrates most of its operations at Istanbul Airport on the European side, its brand is present at Sabiha Gokcen through partner and codeshare arrangements as well as via its low cost unit AJet. Kuwait Airways also features through codeshared services on the Istanbul to Kuwait City corridor. When one carrier’s flight in a shared itinerary is delayed or cancelled, passengers often must work through overlapping rebooking rules across more than one airline, adding complexity and time to the recovery process.
Recent consumer reports about Turkish and Kuwait related itineraries describe cancellations described as arising from “operational” or “force majeure” reasons on longer haul sectors, which in some cases remove the long haul leg while leaving the feeder flight in place. When such changes coincide with local delays at a connecting hub like Sabiha Gokcen, travelers can find themselves with a partial ticket that no longer leads to the intended destination without additional rebooking or a complete reroute.
For Pegasus and AJet, which rely heavily on tight aircraft utilization and quick turnarounds to sustain low fares, resolving delays within the same operational day can be particularly challenging. Once rotations slip by more than a certain threshold, later flights risk further schedule erosion, leaving limited options beyond rolling delays or selective cancellations to stabilize the operation.
Passengers in Türkiye, Germany, the UK and Across Europe Feel the Impact
The immediate impact of four cancellations and more than a hundred delays at Sabiha Gokcen was most visible in Türkiye, where domestic flyers rely on low cost carriers to connect Istanbul with cities such as Ankara, Izmir and the country’s main coastal destinations. However, the ripple effects extended well beyond national borders, disrupting travel plans for passengers flying between Europe and the broader region via Istanbul.
Germany and the UK, two of the most important European markets for Turkish carriers, were among the destinations affected by delays and missed connections. Travelers originating in or heading to cities such as Berlin, Frankfurt, Düsseldorf, London and Manchester frequently use Istanbul as a transfer point, often booking through fares on low cost or hybrid carriers. When an initial sector from Sabiha Gokcen left late, some passengers arriving into major European hubs found that their onward low cost connection within Europe could no longer be taken, triggering additional out of pocket expenses or overnight stays.
Across continental Europe, popular leisure routes from Sabiha Gokcen to destinations in Austria, Italy, Eastern Europe and the Balkans also saw schedule irregularities. For travelers on weekend breaks or short business trips, even an arrival delay of several hours can significantly reduce already limited time on the ground. Social media posts and travel forum discussions in recent weeks have underscored growing frustration among passengers who perceive punctuality challenges on several Turkish carriers, especially when itineraries involve tight connection windows.
Because Sabiha Gokcen is often marketed to European travelers as a convenient transfer hub for reaching secondary cities in Türkiye and neighboring countries, sustained punctuality issues risk undermining that positioning. Passengers who experience repeated disruption may begin to favor itineraries through other regional hubs, even at a higher fare, particularly when reliability is critical for business travel or long planned leisure trips.
Rights, Remedies and What Stranded Travelers Can Do
The spate of delays and cancellations at Sabiha Gokcen also highlights the sometimes complex web of passenger rights and compensation rules that apply when travel plans go wrong. For flights departing from Türkiye or operated by Turkish carriers, local regulation known as SHY Passenger sets out minimum standards of care, including assistance and, in some cases, financial compensation, depending on the length of delay, flight distance and reasons for the disruption.
For itineraries touching the European Union or the UK, rules inspired by or derived from EU Regulation 261 and its UK equivalent may also come into play. Under these frameworks, passengers on flights departing from EU or UK airports, or on EU and UK carriers, can be entitled to meal vouchers, hotel accommodation and, in certain circumstances, fixed compensation when cancellations or long delays are not caused by extraordinary circumstances. The interaction between local Turkish rules and European style protection can vary based on routing, ticketing and airline identity, which can make it challenging for travelers to know exactly what they can claim.
Consumer advocacy sites and legal guidance platforms increasingly advise passengers affected by delays at Sabiha Gokcen to document events carefully by keeping boarding passes, photographing departure boards and obtaining written confirmation of disruption codes when possible. Such evidence can be useful both when dealing directly with airlines and when using third party claim services that specialize in Turkish and European flight compensation cases.
In situations where delays lead to missed connections or unplanned overnight stays, publicly available guidance encourages passengers to ask airlines at the airport about rerouting options on the next available flight, even if it involves another carrier under an interline or codeshare arrangement. While low cost airlines have more limited interline networks than full service flag carriers, there may still be possibilities to reach the final destination without waiting an entire day for the next direct service.
Growing Scrutiny on Reliability at Sabiha Gokcen
The latest wave of disruptions comes at a time when Sabiha Gokcen and its home carriers are under growing scrutiny from frequent travelers over reliability. Online forums and recent travel commentary frequently reference concerns about tight schedules, recurrent tardiness and the knock on impact on connecting flights. Some contributors note that they now build in longer buffers when connecting through Istanbul, especially when traveling during peak holiday periods or on itineraries that mix low cost and full service airlines.
Aviation analysts observing capacity trends in Türkiye describe Sabiha Gokcen as an airport in transition, handling heavy traffic volumes as low cost carriers expand but still operating within infrastructure constraints that can become apparent during disruption. As Pegasus, AJet and partner airlines add new routes and frequencies into Germany, the UK and other European markets, maintaining on time performance will be central to retaining traveler confidence, particularly among price sensitive passengers who nevertheless expect schedules to be broadly reliable.
For now, the episode of four cancellations and 128 delays serves as a reminder of the fragile balance that underpins modern air travel. When a busy point to point hub experiences a dense cluster of operational issues in a short timeframe, the consequences can ripple across countries and continents, from domestic flyers in Türkiye to holidaymakers and business travelers across Europe. How carriers and the airport respond, both operationally and in their handling of affected passengers, is likely to influence booking decisions in the months ahead.