Cheapest return flights from Houston to Istanbul in April from 579€

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

Return flights

12 Apr - 25 Apr Frontier Airlines
16 Apr - 26 Apr Spirit Airlines
17 Apr - 21 Apr Frontier Airlines
03 Apr - 11 Apr Spirit Airlines
20 Apr - 19 May Spirit Airlines
03 Apr - 17 Apr KLM
01 Apr - 26 May KLM
04 Apr - 11 Apr KLM
15 Apr - 18 Apr Frontier Airlines
26 Apr - 02 May KLM
01 Apr - 26 May Turkish Airlines direct
17 Apr - 21 Apr Turkish Airlines direct
03 Apr - 17 Apr Turkish Airlines direct
20 Apr - 19 May Turkish Airlines direct
12 Apr - 25 Apr Turkish Airlines direct
26 Apr - 02 May Turkish Airlines direct

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

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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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