Cheapest return flights from St. Louis to Lisbon in October from 534€

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

Return flights

20 Oct - 06 Nov United
29 Oct - 05 Nov United
23 Oct - 30 Oct United
14 Oct - 21 Oct United
17 Oct - 24 Oct United
26 Oct - 02 Nov United
05 Oct - 12 Oct United
01 Oct - 08 Oct United
11 Oct - 18 Oct United
09 Oct - 16 Oct United
03 Oct - 10 Oct United
07 Oct - 14 Oct United
20 Oct - 27 Oct United

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

Skyscanner

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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