From Upper Halliford train to Clapham Junction then train to London Victoria. 48 min £9. From Sunbury, Three Fishes line 235 bus to Brentford, Market Place Brentford, line 267 bus to Gunnersbury Underground Station, then Tube to Victoria Underground Station. 1 h 30 min £8. From Sunbury-on-Thames taxi to London Victoria Station. 30 min £70. From Sunbury-on-Thames drive to London Victoria Station. 30 min £3.