Cheapest return flights from Trivandrum to Istanbul in October from $401

AirHint found the following cheapest return flights from Trivandrum (TRV) to Istanbul (IST) in October 2025 (see full year).

Return flights

19 Oct - 26 Oct IndiGo
17 Oct - 23 Oct Air Arabia

Also check the deals for one-way flights from Trivandrum to Istanbul in October.

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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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