312 - 704 GBP
Most travellers find the cheapest return airfare to San Francisco when booking during the month of February.
From most locations, booking your flights to San Francisco around 58 days prior to your departure date finds the best deals.
In general, booking your departure to San Francisco for a Wednesday represents the best deal on airfare. Try to avoid a Sunday departure to stay away from the highest prices.
Generally, when visiting San Francisco, evening flights represent the best value. midday flights are likely to have higher prices.