An IndiGo Airbus plane's inaugural flight from Delhi receives a water cannon salute after landing at Phuket Airport on Feb 23, 2018. (Photo: Achadthaya Chuenniran)

IndiGo, India's largest airline, on Thursday said ​it would suspend operations to six international destinations, ​including Krabi, citing higher operating costs and broader pressure from continued airspace restrictions.The move comes a week after IndiGo reported a fourth-quarter loss, ​largely due to higher jet fuel costs.

The Iran conflict has disrupted air travel through airspace closures, longer flight reroutings ‌and a sharp rise in jet fuel prices, increasing cost pressures on airlines globally.

Pakistan's airspace ban on Indian carriers, imposed amid military tensions last year, has also increased flight times and operating costs.

IndiGo said services to Krabi, Langkawi, Ho Chi Minh City, Hong Kong and Shanghai will be suspended from July 1 and flights to Siem Reap will be cancelled from July 3, The Times of India said, citing the company's statement.