Cheapest one-way flights from San Francisco to Lisbon in May from 320€

Best time to book flights for San Francisco (SFO) to Lisbon (LIS) flights at AirHint

AirHint found the following cheapest one-way flights from San Francisco (SFO) to Lisbon (LIS) in May 2025 (see full year).

One-Way flights

06 May Frontier Airlines
01 May Frontier Airlines
03 May Frontier Airlines
02 May Alaska Airlines
11 May Iberia
04 May Iberia
17 May Iberia
10 May Flair Airlines
27 May Flair Airlines
15 May Frontier Airlines

Also check the deals for return flights from San Francisco to Lisbon in May.

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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