Cheapest return flights from Houston to Istanbul in April from 559€

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

Return flights

25 Apr - 09 May Spirit Airlines
18 Apr - 25 Apr Spirit Airlines
14 Apr - 21 Apr Spirit Airlines
16 Apr - 26 Apr Frontier Airlines
02 Apr - 12 Apr Spirit Airlines
30 Apr - 14 May Frontier Airlines
20 Apr - 27 Apr Frontier Airlines
19 Apr - 01 May Spirit Airlines
08 Apr - 15 Apr KLM
06 Apr - 13 Apr KLM
30 Apr - 15 May Frontier Airlines
03 Apr - 17 Apr KLM
19 Apr - 01 May Turkish Airlines direct
08 Apr - 15 Apr Turkish Airlines direct
14 Apr - 21 Apr Turkish Airlines direct

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

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