AirHint found the following cheapest return flights from Houston (IAH) to Istanbul (IST) in March 2026 (see full year).

Return flights

19 Mar - 01 Apr	KLM
02 Mar - 12 Mar	Air France
17 Mar - 31 Mar	Air France
12 Mar - 22 Mar	KLM
20 Mar - 03 Apr	Air France
02 Mar - 12 Mar	Turkish Airlines	direct
17 Mar - 31 Mar	Turkish Airlines	direct
19 Mar - 01 Apr	Turkish Airlines	direct
09 Mar - 14 Mar	Air France
20 Mar - 03 Apr	Turkish Airlines	direct
12 Mar - 22 Mar	Turkish Airlines	direct
06 Mar - 14 Mar	Turkish Airlines	direct
09 Mar - 14 Mar	Turkish Airlines	direct

Also check the deals for one-way flights from Houston to Istanbul in March.

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 Houston to Istanbul in March from 599€

Return flights