United flights from San Francisco to London from $ 656* or from $/mo
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Featured daily fares for flights from San Francisco (SFO) to London (LHR)
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More United deals on San Francisco (SFO) to London (LHR) flights
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From | To | Fare Type | Dates | Price |
|---|---|---|---|---|
| San Francisco (SFO) | London (LHR) | Roundtrip | Economy | 04/27/25 - 05/09/25 | from $ 656 Viewed: 15 hours ago |
| San Francisco (SFO) | London (LHR) | Roundtrip | Economy | 11/12/25 - 11/27/25 | from $ 656 Viewed: 13 minutes ago |
| San Francisco (SFO) | London (LHR) | Roundtrip | Economy | 05/13/25 - 05/20/25 | from $ 656 Viewed: 5 hours ago |
| San Francisco (SFO) | London (LHR) | Roundtrip | Economy | 11/24/25 - 12/04/25 | from $ 656 Viewed: 4 hours ago |
| San Francisco (SFO) | London (LHR) | Roundtrip | Economy | 10/06/25 - 11/04/25 | from $ 656 Viewed: 2 hours ago |
| San Francisco (SFO) | London (LHR) | Roundtrip | Economy | 10/05/25 - 11/04/25 | from $ 656 Viewed: 2 hours ago |
| San Francisco (SFO) | London (LHR) | Roundtrip | Economy | 10/07/25 - 11/04/25 | from $ 656 Viewed: 2 hours ago |
| San Francisco (SFO) | London (LHR) | Roundtrip | Economy | 05/06/25 - 05/13/25 | from $ 656 Viewed: 14 hours ago |
| San Francisco (SFO) | London (LHR) | Roundtrip | Economy | 05/05/25 - 05/16/25 | from $ 657 Viewed: 19 hours ago |
| San Francisco (SFO) | London (LHR) | Roundtrip | Economy | 05/05/25 - 05/15/25 | from $ 657 Viewed: 20 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.
