AirHint found the following cheapest return flights from Los Angeles (LAX) to Lisbon (LIS) in May 2026 (see full year).

Return flights

15 May - 06 Jun	Iberia For Level
08 May - 22 May	Air Canada
17 May - 01 Jun	Air Canada
16 May - 31 May	Air Canada
30 May - 20 Jun	United
28 May - 06 Jun	Lufthansa
09 May - 19 May	TAP	direct
08 May - 22 May	TAP	direct
29 May - 07 Jun	British Airways
22 May - 05 Jun	Air Canada
23 May - 06 Jun	Iberia
15 May - 06 Jun	TAP	direct
22 May - 05 Jun	TAP	direct
16 May - 31 May	TAP	direct
29 May - 07 Jun	TAP	direct

Also check the deals for one-way flights from Los Angeles to Lisbon in May.

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 Los Angeles to Lisbon in May from 511€

Return flights