Cheapest return flights from Phoenix to Lisbon in September from $626

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

Return flights

23 Sep - 21 Oct Iberia
30 Sep - 23 Oct Delta
18 Sep - 22 Sep Air France
16 Sep - 30 Sep British Airways
30 Sep - 25 Oct British Airways
20 Sep - 11 Oct Frontier Airlines
28 Sep - 18 Oct British Airways
20 Sep - 23 Sep United
12 Sep - 19 Sep Air Canada
11 Sep - 18 Sep United
08 Sep - 04 Oct Frontier Airlines

Also check the deals for one-way flights from Phoenix 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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