Nok Air’s International Route Ban: Safety Violations Spark Concerns

Authorities in Thailand have halted all international flight operations for the low-cost airline Nok Air until further notice, citing safety concerns. Additionally, any expansion plans are also suspended. The airline is required to remedy these deficiencies before it can resume international services, as reported by The Nation (Thailand).

On August 29, 2025, the Civil Aviation Authority of Thailand (CAAT) made the decision to restrict Nok Air from flying international routes due to failure to meet safety requirements. This ban has been implemented during an ongoing compliance review by the International Civil Aviation Organization (ICAO). According to Air Chief Marshal Manat Chavanaprayoon, the Director-General of CAAT, the airline must address identified safety issues before resuming operations, both internationally and domestically.

The suspension of Nok Air is part of a broader effort to ensure full compliance with ICAO standards across Thailand’s aviation industry, coinciding with an ICAO audit running from August 27 to September 8, 2025.

Safety Concerns Raised

Air Chief Marshal Manat highlighted that the CAAT found multiple deficiencies in Nok Air’s operations from 2023 to 2025. These included significant incident rates such as in-flight engine shutdowns, runway excursions, hard landings, and tail strikes.

“Particularly alarming are the engine in-flight shutdowns, for which no root cause has been established,” stated CAAT officials. “A thorough investigation is necessary to evaluate the risks and effects, allowing for proper risk management strategies and recommendations to be made,” they added.

Furthermore, the CAAT expressed concerns about a notable number of resignations among pilots, flight instructors, and aviation inspectors, indicating underlying internal issues such as safety culture, employee morale, and staffing challenges.

“This situation has raised the risk of personnel lacking the essential knowledge and expertise required for flight operations. The airline has yet to identify the underlying causes of these incidents or resolve operational inefficiencies within its system,” CAAT emphasized. Manat indicated that these issues must be addressed within one week for the suspension to be lifted.

The Airline’s Response

Nok Air’s CEO, Wutthiphum Jurangkool, stressed that although the airline has not operated international flights since June 2025, it is continuing with domestic services under the close supervision of CAAT. He responded to CAAT’s concerns regarding maintenance practices, stating that Nok Air follows the CAAT-approved maintenance manual and maintains international safety standards. The airline is also in regular communication with CAAT and Boeing to prioritize safety.

Addressing the employee retention issue raised by CAAT, Wutthiphum asserted that, despite competitive challenges, Nok Air has a qualified workforce and provides necessary training to meet CAAT and ICAO standards across all personnel, including flight inspectors, pilots, and crew members.

“Nok Air is committed to maintaining the highest safety standards and enhancing service quality in all operations. The airline appreciates the trust of its passengers and assures them that domestic services are operating as scheduled, in full compliance with CAAT regulations and international safety protocols,” he concluded.

About Nok Air

Nok Air, based at Bangkok’s Don Muang International Airport (DMK), commenced scheduled passenger operations in 2004. Named after the ‘Nok bird,’ known for its distinctive featherless pink face, the airline operates a fleet of 14 Boeing 737-800s, although two of these are currently in storage. The average age of its fleet is 11.3 years.

Before June 2025, Nok Air served 21 routes across three countries.