What is the cheapest month to visit London from San Francisco? October is the month that offers the most budget-friendly airfares for traveling from San Francisco to London. The next cheapest month for making a San Francisco to London group bookings is February. During these months, the demand is slightly lower than in other months, though the market is primarily huge for flights to London. London experiences its highest travel costs in June. Read more:- https://www.airlinesgrouptravel.com/cheap-group-flights-from/san-francisco-to-london #SanFranciscotoLondonGroupBooking #SanFranciscotoLondonGroupTravel #SanFranciscotoLondonFlights #SanFranciscotoLondonBestDeals #SanFranciscotoLondonCheapFlights #SanFranciscotoLondonLowCostFares