Best option London Stansted San Francisco | 06/06/24 2 Stopovers (AYT, IST) TK7833, TK2439, TK0289 31h 05min | 28/06/24 2 Stopovers (IST, AYT) TK0290, TK2424, TK7832 38h 05min | Turkish Airlines | £1,364 Found several days ago | Check |