Flights from London to San Francisco from $ 645*
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1 Passenger, Economy
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today
today
Featured daily fares for flights from London (LHR) to San Francisco (SFO)
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More United deals on London (LHR) to San Francisco (SFO) flights
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From | To | Fare Type | Dates | Price |
|---|---|---|---|---|
| London (LHR) | San Francisco (SFO) | Roundtrip | Economy | 04/29/26 - 06/02/26 | from $ 794 Viewed: 3 hours ago |
| London (LHR) | San Francisco (SFO) | Roundtrip | Economy | 04/28/26 - 06/02/26 | from $ 799 Viewed: 3 hours ago |
| London (LHR) | San Francisco (SFO) | Roundtrip | Economy | 08/17/26 - 09/13/26 | from $ 645 Viewed: 1 day ago |
| London (LHR) | San Francisco (SFO) | Roundtrip | Economy | 08/18/26 - 09/13/26 | from $ 645 Viewed: 1 day ago |
| London (LHR) | San Francisco (SFO) | Roundtrip | Economy | 06/25/26 - 07/11/26 | from $ 719 Viewed: 1 day ago |
| London (LHR) | San Francisco (SFO) | Roundtrip | Economy | 02/22/27 - 03/03/27 | from $ 755 Viewed: 10 hours ago |
| London (LHR) | San Francisco (SFO) | Roundtrip | Economy | 09/30/26 - 10/27/26 | from $ 794 Viewed: 22 hours ago |
| London (LHR) | San Francisco (SFO) | Roundtrip | Economy | 04/15/26 - 04/27/26 | from $ 799 Viewed: 21 hours ago |
*Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, 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. Schedules are subject to change without notice.
