Cheapest return flights from Chicago to Lisbon in October from $479

Best time to book flights for Chicago (ORD) to Lisbon (LIS) flights at AirHint

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

Return flights

25 Oct - 07 Nov TAP direct
22 Oct - 29 Oct TAP direct
29 Oct - 06 Nov British Airways
24 Oct - 31 Oct TAP direct
23 Oct - 31 Oct TAP direct
28 Oct - 05 Nov Air Canada
14 Oct - 21 Oct Air Canada
09 Oct - 16 Oct TAP direct
26 Oct - 03 Nov British Airways
08 Oct - 16 Oct TAP direct
16 Oct - 24 Oct TAP direct
14 Oct - 22 Oct Air Canada
13 Oct - 21 Oct Air Canada
20 Oct - 28 Oct Finnair
30 Oct - 07 Nov Aer Lingus
31 Oct - 08 Nov KLM
25 Oct - 01 Nov United
24 Oct - 02 Nov TAP direct

Also check the deals for one-way flights from Chicago 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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