AirHint found the following cheapest return flights from St. Louis (STL) to Amsterdam (AMS) in October 2025 (see full year).

Return flights

28 Oct - 04 Nov	United
29 Oct - 05 Nov	United
21 Oct - 15 Nov	Air France
31 Oct - 07 Nov	United
11 Oct - 01 Nov	Air Canada
26 Oct - 02 Nov	United
07 Oct - 14 Oct	United
01 Oct - 25 Oct	Scandinavian Airlines
08 Oct - 15 Oct	United
14 Oct - 21 Oct	United
22 Oct - 29 Oct	United
31 Oct - 22 Nov	Air France
25 Oct - 01 Nov	United
10 Oct - 17 Oct	United
16 Oct - 23 Oct	United
09 Oct - 16 Oct	United
13 Oct - 20 Oct	United
17 Oct - 24 Oct	United

Also check the deals for one-way flights from St. Louis to Amsterdam in October.

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 St. Louis to Amsterdam in October from 559€

Return flights