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

Return flights

05 Apr - 11 Apr	Air France
23 Apr - 07 May	Air France
26 Apr - 10 May	Air France
23 Apr - 07 May	Turkish Airlines	direct
26 Apr - 10 May	Turkish Airlines	direct
05 Apr - 11 Apr	Turkish Airlines	direct

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

Cheap car rent in Istanbul

Cheapest return flights from Houston to Istanbul in April from 708€

Return flights