Fly from San Francisco to Lisbon for $510 round-trip on United/TAP Portugal.

Seen below, we found seats departing SFO on Monday, May 1, returning from LIS on Tuesday, May 9.

Other dates are also available for travel in late spring/fall.

See our fare details for booking info.

Need a room in Lisbon? Here's what's available for the above dates on Hotelwatchdog.

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