Cheapest return flights from Indianapolis to Lisbon in September from $531

AirHint found the following cheapest return flights from Indianapolis (IND) to Lisbon (LIS) in September 2025 (see full year).

Return flights

01 Sep - 30 Sep Spirit Airlines
19 Sep - 26 Sep Spirit Airlines
02 Sep - 09 Sep United
22 Sep - 29 Sep United
17 Sep - 24 Sep United
08 Sep - 15 Sep United
05 Sep - 12 Sep United
11 Sep - 18 Sep United
27 Sep - 04 Oct United
14 Sep - 21 Sep United

Also check the deals for one-way flights from Indianapolis to Lisbon in September.

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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