Book United Lisbon to San Francisco flight deals from $521

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Plan ahead for flights from Lisbon to San Francisco

from
to
Type
Dates
Price*
Lisbon (LIS)
to San Francisco (SFO)
Roundtrip
Depart Thu 18 Apr 2019
Return Sat 27 Apr 2019
from$ 521*Viewed: 17 hours ago
*Prices have been available for round trips within the last 48 hours and may not be currently available. Fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply.