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

Return flights

04 May - 16 May	Pegasus Airlines
14 May - 20 May	Pegasus Airlines
10 May - 16 May	Air Arabia
16 May - 29 May	Air Arabia
19 May - 29 May	Air Arabia
26 May - 03 Jun	Air Arabia
23 May - 30 May	Air Arabia
22 May - 30 May	Air Arabia
19 May - 29 May	Turkish Airlines	direct
26 May - 03 Jun	Turkish Airlines	direct
14 May - 20 May	Turkish Airlines	direct
16 May - 29 May	Turkish Airlines	direct

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

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.

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Cheapest return flights from Istanbul to Colombo in May from $448

Return flights