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

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

Return flights

27 Apr - 11 May WestJet
06 Apr - 13 Apr KLM
08 Apr - 18 Apr KLM
15 Apr - 09 May Air France
09 Apr - 23 Apr KLM
09 Apr - 16 Apr KLM
22 Apr - 30 Apr Lufthansa
09 Apr - 18 Apr KLM
29 Apr - 15 May Lufthansa
22 Apr - 02 May KLM
29 Apr - 09 May KLM
23 Apr - 02 May KLM
15 Apr - 25 Apr Air France
16 Apr - 25 Apr Air France
30 Apr - 15 May Air France
25 Apr - 09 May Air France
30 Apr - 14 May Air France
09 Apr - 16 Apr Turkish Airlines direct
22 Apr - 30 Apr Turkish Airlines direct
23 Apr - 02 May Turkish Airlines direct

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

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