AirHint found the following cheapest one-way flights from Miami (MIA) to Lisbon (LIS) in September 2025 (see full year).

One-Way flights

30 Sep	Norse Atlantic Airways (UK)
28 Sep	Norse Atlantic Airways (UK)
21 Sep	Norse Atlantic Airways (UK)
23 Sep	Norse Atlantic Airways (UK)
22 Sep	Norse Atlantic Airways (UK)
08 Sep	Norse Atlantic Airways (UK)
15 Sep	Norse Atlantic Airways (UK)
24 Sep	Norse Atlantic Airways (UK)
09 Sep	Frontier Airlines
05 Sep	Norse Atlantic Airways (UK)

Also check the deals for return flights from Miami to Lisbon 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 one-way flights from Miami to Lisbon in September from 172€

One-Way flights