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

Return flights

04 Apr - 18 Apr	AZAL
05 Apr - 19 Apr	Kuwait Airways
08 Apr - 05 May	flydubai
13 Apr - 30 Apr	flydubai
11 Apr - 24 Apr	flydubai
17 Apr - 30 Apr	flydubai
18 Apr - 01 May	flydubai
01 Apr - 12 Apr	flydubai
11 Apr - 25 Apr	flydubai
13 Apr - 30 Apr	Turkish Airlines	direct
08 Apr - 05 May	Turkish Airlines	direct
18 Apr - 01 May	Turkish Airlines	direct
05 Apr - 19 Apr	Turkish Airlines	direct
11 Apr - 24 Apr	Turkish Airlines	direct

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

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in Kathmandu

Cheap car rent in Kathmandu

Cheapest return flights from Istanbul to Kathmandu in April from 567€

Return flights