AirHint found the following cheapest one-way flights from London (LHR) to San Francisco (SFO) in April 2026 (see full year).
One-Way flights
| 28 Apr | Aer Lingus | ||
| 14 Apr | Aer Lingus | ||
| 12 Apr | Iberia | ||
| 18 Apr | Iberia | ||
| 29 Apr | Aer Lingus | ||
| 30 Apr | jetBlue | ||
| 23 Apr | jetBlue | ||
| 17 Apr | Iberia | ||
| 28 Apr | Virgin Atlantic | direct | |
| 14 Apr | British Airways | direct |
Also check the deals for return flights from London to San Francisco in April.
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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