Cheapest return KTM–IST flights, May

AirHint found the following cheapest return flights from Kathmandu (KTM) to Istanbul (IST) in May 2026 (see full year).

Return flights

28 May - 30 May IndiGo
22 May - 03 Jun IndiGo
14 May - 28 May IndiGo
22 May - 28 May Emirates
09 May - 18 May IndiGo
08 May - 17 May IndiGo
04 May - 18 May Air Arabia
07 May - 09 May IndiGo
03 May - 09 May Air Arabia
03 May - 10 May IndiGo
04 May - 20 May Air Arabia
22 May - 03 Jun Turkish Airlines direct

Also check the deals for one-way flights from Kathmandu to Istanbul in May.

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