AirHint found the following cheapest return flights from Houston (HOU) to Amsterdam (AMS) in September 2025 (see full year).

Return flights

19 Sep - 26 Sep	Spirit Airlines
04 Sep - 14 Sep	Spirit Airlines
12 Sep - 21 Sep	Spirit Airlines
17 Sep - 27 Sep	Spirit Airlines
08 Sep - 15 Sep	Spirit Airlines
14 Sep - 30 Sep	Spirit Airlines
19 Sep - 26 Sep	United	direct
17 Sep - 27 Sep	United	direct
08 Sep - 15 Sep	Delta	direct
30 Sep - 12 Oct	Delta	direct
12 Sep - 20 Sep	United	direct

Also check the deals for one-way flights from Houston to Amsterdam in September.

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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Cheapest return flights from Houston to Amsterdam in September from 517€

Return flights