Cheapest return flights from Houston to Istanbul in April from 597€

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

Return flights

13 Apr - 27 Apr Spirit Airlines
03 Apr - 17 Apr Frontier Airlines
01 Apr - 08 Apr Austrian Airlines
30 Apr - 14 May Spirit Airlines
25 Apr - 09 May Spirit Airlines
16 Apr - 26 Apr Spirit Airlines
02 Apr - 19 Apr Frontier Airlines
30 Apr - 15 May Spirit Airlines
13 Apr - 27 Apr Turkish Airlines direct
02 Apr - 19 Apr Turkish Airlines direct
16 Apr - 30 Apr Turkish Airlines direct
16 Apr - 20 Apr Turkish Airlines direct
23 Apr - 27 Apr Turkish Airlines direct

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

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