AirHint found the following cheapest return flights from Phoenix (PHX) to Lisbon (LIS) in March 2026 (see full year).

Return flights

03 Mar - 10 Mar	United
10 Mar - 17 Mar	Delta
23 Mar - 30 Mar	KLM
17 Mar - 30 Mar	British Airways
04 Mar - 11 Mar	Delta
02 Mar - 09 Mar	Delta
31 Mar - 14 Apr	Delta
09 Mar - 16 Mar	British Airways
24 Mar - 07 Apr	British Airways
07 Mar - 14 Mar	British Airways
28 Mar - 13 Apr	British Airways
18 Mar - 30 Mar	British Airways
06 Mar - 13 Mar	British Airways
30 Mar - 08 Apr	British Airways
30 Mar - 06 Apr	KLM
31 Mar - 07 Apr	Delta
24 Mar - 04 Apr	British Airways
25 Mar - 01 Apr	Delta
29 Mar - 08 Apr	British Airways
25 Mar - 07 Apr	British Airways

Also check the deals for one-way flights from Phoenix to Lisbon in March.

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 return flights from Phoenix to Lisbon in March from $496

Return flights